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// SPDX-License-Identifier: GPL-2.0-only
/*
* Pinctrl driver for Rockchip SoCs
*
* Copyright (c) 2013 MundoReader S.L.
* Author: Heiko Stuebner <heiko@sntech.de>
*
* With some ideas taken from pinctrl-samsung:
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com
* Copyright (c) 2012 Linaro Ltd
* https://www.linaro.org
*
* and pinctrl-at91:
* Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/clk.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
#include <dt-bindings/pinctrl/rockchip.h>
#include "core.h"
#include "pinconf.h"
#include "pinctrl-rockchip.h"
/**
* Generate a bitmask for setting a value (v) with a write mask bit in hiword
* register 31:16 area.
*/
#define WRITE_MASK_VAL(h, l, v) \
(GENMASK(((h) + 16), ((l) + 16)) | (((v) << (l)) & GENMASK((h), (l))))
/*
* Encode variants of iomux registers into a type variable
*/
#define IOMUX_GPIO_ONLY BIT(0)
#define IOMUX_WIDTH_4BIT BIT(1)
#define IOMUX_SOURCE_PMU BIT(2)
#define IOMUX_UNROUTED BIT(3)
#define IOMUX_WIDTH_3BIT BIT(4)
#define IOMUX_WIDTH_2BIT BIT(5)
#define PIN_BANK(id, pins, label) \
{ \
.bank_num = id, \
.nr_pins = pins, \
.name = label, \
.iomux = { \
{ .offset = -1 }, \
{ .offset = -1 }, \
{ .offset = -1 }, \
{ .offset = -1 }, \
}, \
}
#define PIN_BANK_IOMUX_FLAGS(id, pins, label, iom0, iom1, iom2, iom3) \
{ \
.bank_num = id, \
.nr_pins = pins, \
.name = label, \
.iomux = { \
{ .type = iom0, .offset = -1 }, \
{ .type = iom1, .offset = -1 }, \
{ .type = iom2, .offset = -1 }, \
{ .type = iom3, .offset = -1 }, \
}, \
}
#define PIN_BANK_DRV_FLAGS(id, pins, label, type0, type1, type2, type3) \
{ \
.bank_num = id, \
.nr_pins = pins, \
.name = label, \
.iomux = { \
{ .offset = -1 }, \
{ .offset = -1 }, \
{ .offset = -1 }, \
{ .offset = -1 }, \
}, \
.drv = { \
{ .drv_type = type0, .offset = -1 }, \
{ .drv_type = type1, .offset = -1 }, \
{ .drv_type = type2, .offset = -1 }, \
{ .drv_type = type3, .offset = -1 }, \
}, \
}
#define PIN_BANK_DRV_FLAGS_PULL_FLAGS(id, pins, label, drv0, drv1, \
drv2, drv3, pull0, pull1, \
pull2, pull3) \
{ \
.bank_num = id, \
.nr_pins = pins, \
.name = label, \
.iomux = { \
{ .offset = -1 }, \
{ .offset = -1 }, \
{ .offset = -1 }, \
{ .offset = -1 }, \
}, \
.drv = { \
{ .drv_type = drv0, .offset = -1 }, \
{ .drv_type = drv1, .offset = -1 }, \
{ .drv_type = drv2, .offset = -1 }, \
{ .drv_type = drv3, .offset = -1 }, \
}, \
.pull_type[0] = pull0, \
.pull_type[1] = pull1, \
.pull_type[2] = pull2, \
.pull_type[3] = pull3, \
}
#define PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(id, pins, label, iom0, iom1, \
iom2, iom3, drv0, drv1, drv2, \
drv3, offset0, offset1, \
offset2, offset3) \
{ \
.bank_num = id, \
.nr_pins = pins, \
.name = label, \
.iomux = { \
{ .type = iom0, .offset = -1 }, \
{ .type = iom1, .offset = -1 }, \
{ .type = iom2, .offset = -1 }, \
{ .type = iom3, .offset = -1 }, \
}, \
.drv = { \
{ .drv_type = drv0, .offset = offset0 }, \
{ .drv_type = drv1, .offset = offset1 }, \
{ .drv_type = drv2, .offset = offset2 }, \
{ .drv_type = drv3, .offset = offset3 }, \
}, \
}
#define PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(id, pins, \
label, iom0, iom1, iom2, \
iom3, drv0, drv1, drv2, \
drv3, offset0, offset1, \
offset2, offset3, pull0, \
pull1, pull2, pull3) \
{ \
.bank_num = id, \
.nr_pins = pins, \
.name = label, \
.iomux = { \
{ .type = iom0, .offset = -1 }, \
{ .type = iom1, .offset = -1 }, \
{ .type = iom2, .offset = -1 }, \
{ .type = iom3, .offset = -1 }, \
}, \
.drv = { \
{ .drv_type = drv0, .offset = offset0 }, \
{ .drv_type = drv1, .offset = offset1 }, \
{ .drv_type = drv2, .offset = offset2 }, \
{ .drv_type = drv3, .offset = offset3 }, \
}, \
.pull_type[0] = pull0, \
.pull_type[1] = pull1, \
.pull_type[2] = pull2, \
.pull_type[3] = pull3, \
}
#define PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, FLAG) \
{ \
.bank_num = ID, \
.pin = PIN, \
.func = FUNC, \
.route_offset = REG, \
.route_val = VAL, \
.route_location = FLAG, \
}
#define RK_MUXROUTE_SAME(ID, PIN, FUNC, REG, VAL) \
PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, ROCKCHIP_ROUTE_SAME)
#define RK_MUXROUTE_GRF(ID, PIN, FUNC, REG, VAL) \
PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, ROCKCHIP_ROUTE_GRF)
#define RK_MUXROUTE_PMU(ID, PIN, FUNC, REG, VAL) \
PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, ROCKCHIP_ROUTE_PMU)
static struct regmap_config rockchip_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
};
static inline const struct rockchip_pin_group *pinctrl_name_to_group(
const struct rockchip_pinctrl *info,
const char *name)
{
int i;
for (i = 0; i < info->ngroups; i++) {
if (!strcmp(info->groups[i].name, name))
return &info->groups[i];
}
return NULL;
}
/*
* given a pin number that is local to a pin controller, find out the pin bank
* and the register base of the pin bank.
*/
static struct rockchip_pin_bank *pin_to_bank(struct rockchip_pinctrl *info,
unsigned pin)
{
struct rockchip_pin_bank *b = info->ctrl->pin_banks;
while (pin >= (b->pin_base + b->nr_pins))
b++;
return b;
}
static struct rockchip_pin_bank *bank_num_to_bank(
struct rockchip_pinctrl *info,
unsigned num)
{
struct rockchip_pin_bank *b = info->ctrl->pin_banks;
int i;
for (i = 0; i < info->ctrl->nr_banks; i++, b++) {
if (b->bank_num == num)
return b;
}
return ERR_PTR(-EINVAL);
}
/*
* Pinctrl_ops handling
*/
static int rockchip_get_groups_count(struct pinctrl_dev *pctldev)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
return info->ngroups;
}
static const char *rockchip_get_group_name(struct pinctrl_dev *pctldev,
unsigned selector)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
return info->groups[selector].name;
}
static int rockchip_get_group_pins(struct pinctrl_dev *pctldev,
unsigned selector, const unsigned **pins,
unsigned *npins)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
if (selector >= info->ngroups)
return -EINVAL;
*pins = info->groups[selector].pins;
*npins = info->groups[selector].npins;
return 0;
}
static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np,
struct pinctrl_map **map, unsigned *num_maps)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
const struct rockchip_pin_group *grp;
struct pinctrl_map *new_map;
struct device_node *parent;
int map_num = 1;
int i;
/*
* first find the group of this node and check if we need to create
* config maps for pins
*/
grp = pinctrl_name_to_group(info, np->name);
if (!grp) {
dev_err(info->dev, "unable to find group for node %pOFn\n",
np);
return -EINVAL;
}
map_num += grp->npins;
new_map = kcalloc(map_num, sizeof(*new_map), GFP_KERNEL);
if (!new_map)
return -ENOMEM;
*map = new_map;
*num_maps = map_num;
/* create mux map */
parent = of_get_parent(np);
if (!parent) {
kfree(new_map);
return -EINVAL;
}
new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
new_map[0].data.mux.function = parent->name;
new_map[0].data.mux.group = np->name;
of_node_put(parent);
/* create config map */
new_map++;
for (i = 0; i < grp->npins; i++) {
new_map[i].type = PIN_MAP_TYPE_CONFIGS_PIN;
new_map[i].data.configs.group_or_pin =
pin_get_name(pctldev, grp->pins[i]);
new_map[i].data.configs.configs = grp->data[i].configs;
new_map[i].data.configs.num_configs = grp->data[i].nconfigs;
}
dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
(*map)->data.mux.function, (*map)->data.mux.group, map_num);
return 0;
}
static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map, unsigned num_maps)
{
kfree(map);
}
static const struct pinctrl_ops rockchip_pctrl_ops = {
.get_groups_count = rockchip_get_groups_count,
.get_group_name = rockchip_get_group_name,
.get_group_pins = rockchip_get_group_pins,
.dt_node_to_map = rockchip_dt_node_to_map,
.dt_free_map = rockchip_dt_free_map,
};
/*
* Hardware access
*/
static struct rockchip_mux_recalced_data rv1108_mux_recalced_data[] = {
{
.num = 1,
.pin = 0,
.reg = 0x418,
.bit = 0,
.mask = 0x3
}, {
.num = 1,
.pin = 1,
.reg = 0x418,
.bit = 2,
.mask = 0x3
}, {
.num = 1,
.pin = 2,
.reg = 0x418,
.bit = 4,
.mask = 0x3
}, {
.num = 1,
.pin = 3,
.reg = 0x418,
.bit = 6,
.mask = 0x3
}, {
.num = 1,
.pin = 4,
.reg = 0x418,
.bit = 8,
.mask = 0x3
}, {
.num = 1,
.pin = 5,
.reg = 0x418,
.bit = 10,
.mask = 0x3
}, {
.num = 1,
.pin = 6,
.reg = 0x418,
.bit = 12,
.mask = 0x3
}, {
.num = 1,
.pin = 7,
.reg = 0x418,
.bit = 14,
.mask = 0x3
}, {
.num = 1,
.pin = 8,
.reg = 0x41c,
.bit = 0,
.mask = 0x3
}, {
.num = 1,
.pin = 9,
.reg = 0x41c,
.bit = 2,
.mask = 0x3
},
};
static struct rockchip_mux_recalced_data rk3128_mux_recalced_data[] = {
{
.num = 2,
.pin = 20,
.reg = 0xe8,
.bit = 0,
.mask = 0x7
}, {
.num = 2,
.pin = 21,
.reg = 0xe8,
.bit = 4,
.mask = 0x7
}, {
.num = 2,
.pin = 22,
.reg = 0xe8,
.bit = 8,
.mask = 0x7
}, {
.num = 2,
.pin = 23,
.reg = 0xe8,
.bit = 12,
.mask = 0x7
}, {
.num = 2,
.pin = 24,
.reg = 0xd4,
.bit = 12,
.mask = 0x7
},
};
static struct rockchip_mux_recalced_data rk3308_mux_recalced_data[] = {
{
.num = 1,
.pin = 14,
.reg = 0x28,
.bit = 12,
.mask = 0xf
}, {
.num = 1,
.pin = 15,
.reg = 0x2c,
.bit = 0,
.mask = 0x3
}, {
.num = 1,
.pin = 18,
.reg = 0x30,
.bit = 4,
.mask = 0xf
}, {
.num = 1,
.pin = 19,
.reg = 0x30,
.bit = 8,
.mask = 0xf
}, {
.num = 1,
.pin = 20,
.reg = 0x30,
.bit = 12,
.mask = 0xf
}, {
.num = 1,
.pin = 21,
.reg = 0x34,
.bit = 0,
.mask = 0xf
}, {
.num = 1,
.pin = 22,
.reg = 0x34,
.bit = 4,
.mask = 0xf
}, {
.num = 1,
.pin = 23,
.reg = 0x34,
.bit = 8,
.mask = 0xf
}, {
.num = 3,
.pin = 12,
.reg = 0x68,
.bit = 8,
.mask = 0xf
}, {
.num = 3,
.pin = 13,
.reg = 0x68,
.bit = 12,
.mask = 0xf
}, {
.num = 2,
.pin = 2,
.reg = 0x608,
.bit = 0,
.mask = 0x7
}, {
.num = 2,
.pin = 3,
.reg = 0x608,
.bit = 4,
.mask = 0x7
}, {
.num = 2,
.pin = 16,
.reg = 0x610,
.bit = 8,
.mask = 0x7
}, {
.num = 3,
.pin = 10,
.reg = 0x610,
.bit = 0,
.mask = 0x7
}, {
.num = 3,
.pin = 11,
.reg = 0x610,
.bit = 4,
.mask = 0x7
},
};
static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
{
.num = 2,
.pin = 12,
.reg = 0x24,
.bit = 8,
.mask = 0x3
}, {
.num = 2,
.pin = 15,
.reg = 0x28,
.bit = 0,
.mask = 0x7
}, {
.num = 2,
.pin = 23,
.reg = 0x30,
.bit = 14,
.mask = 0x3
},
};
static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin,
int *reg, u8 *bit, int *mask)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct rockchip_mux_recalced_data *data;
int i;
for (i = 0; i < ctrl->niomux_recalced; i++) {
data = &ctrl->iomux_recalced[i];
if (data->num == bank->bank_num &&
data->pin == pin)
break;
}
if (i >= ctrl->niomux_recalced)
return;
*reg = data->reg;
*mask = data->mask;
*bit = data->bit;
}
static struct rockchip_mux_route_data px30_mux_route_data[] = {
RK_MUXROUTE_SAME(2, RK_PA0, 1, 0x184, BIT(16 + 7)), /* cif-d2m0 */
RK_MUXROUTE_SAME(3, RK_PA3, 3, 0x184, BIT(16 + 7) | BIT(7)), /* cif-d2m1 */
RK_MUXROUTE_SAME(3, RK_PC6, 2, 0x184, BIT(16 + 8)), /* pdm-m0 */
RK_MUXROUTE_SAME(2, RK_PC6, 1, 0x184, BIT(16 + 8) | BIT(8)), /* pdm-m1 */
RK_MUXROUTE_SAME(1, RK_PD3, 2, 0x184, BIT(16 + 10)), /* uart2-rxm0 */
RK_MUXROUTE_SAME(2, RK_PB6, 2, 0x184, BIT(16 + 10) | BIT(10)), /* uart2-rxm1 */
RK_MUXROUTE_SAME(0, RK_PC1, 2, 0x184, BIT(16 + 9)), /* uart3-rxm0 */
RK_MUXROUTE_SAME(1, RK_PB7, 2, 0x184, BIT(16 + 9) | BIT(9)), /* uart3-rxm1 */
};
static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
RK_MUXROUTE_SAME(1, RK_PB2, 1, 0x144, BIT(16 + 3) | BIT(16 + 4)), /* spi-0 */
RK_MUXROUTE_SAME(1, RK_PD3, 3, 0x144, BIT(16 + 3) | BIT(16 + 4) | BIT(3)), /* spi-1 */
RK_MUXROUTE_SAME(0, RK_PB5, 2, 0x144, BIT(16 + 3) | BIT(16 + 4) | BIT(4)), /* spi-2 */
RK_MUXROUTE_SAME(1, RK_PA5, 1, 0x144, BIT(16 + 5)), /* i2s-0 */
RK_MUXROUTE_SAME(0, RK_PB6, 1, 0x144, BIT(16 + 5) | BIT(5)), /* i2s-1 */
RK_MUXROUTE_SAME(1, RK_PC6, 2, 0x144, BIT(16 + 6)), /* emmc-0 */
RK_MUXROUTE_SAME(2, RK_PA4, 2, 0x144, BIT(16 + 6) | BIT(6)), /* emmc-1 */
};
static struct rockchip_mux_route_data rk3188_mux_route_data[] = {
RK_MUXROUTE_SAME(0, RK_PD0, 1, 0xa0, BIT(16 + 11)), /* non-iomuxed emmc/flash pins on flash-dqs */
RK_MUXROUTE_SAME(0, RK_PD0, 2, 0xa0, BIT(16 + 11) | BIT(11)), /* non-iomuxed emmc/flash pins on emmc-clk */
};
static struct rockchip_mux_route_data rk3228_mux_route_data[] = {
RK_MUXROUTE_SAME(0, RK_PD2, 1, 0x50, BIT(16)), /* pwm0-0 */
RK_MUXROUTE_SAME(3, RK_PC5, 1, 0x50, BIT(16) | BIT(0)), /* pwm0-1 */
RK_MUXROUTE_SAME(0, RK_PD3, 1, 0x50, BIT(16 + 1)), /* pwm1-0 */
RK_MUXROUTE_SAME(0, RK_PD6, 2, 0x50, BIT(16 + 1) | BIT(1)), /* pwm1-1 */
RK_MUXROUTE_SAME(0, RK_PD4, 1, 0x50, BIT(16 + 2)), /* pwm2-0 */
RK_MUXROUTE_SAME(1, RK_PB4, 2, 0x50, BIT(16 + 2) | BIT(2)), /* pwm2-1 */
RK_MUXROUTE_SAME(3, RK_PD2, 1, 0x50, BIT(16 + 3)), /* pwm3-0 */
RK_MUXROUTE_SAME(1, RK_PB3, 2, 0x50, BIT(16 + 3) | BIT(3)), /* pwm3-1 */
RK_MUXROUTE_SAME(1, RK_PA1, 1, 0x50, BIT(16 + 4)), /* sdio-0_d0 */
RK_MUXROUTE_SAME(3, RK_PA2, 1, 0x50, BIT(16 + 4) | BIT(4)), /* sdio-1_d0 */
RK_MUXROUTE_SAME(0, RK_PB5, 2, 0x50, BIT(16 + 5)), /* spi-0_rx */
RK_MUXROUTE_SAME(2, RK_PA0, 2, 0x50, BIT(16 + 5) | BIT(5)), /* spi-1_rx */
RK_MUXROUTE_SAME(1, RK_PC6, 2, 0x50, BIT(16 + 7)), /* emmc-0_cmd */
RK_MUXROUTE_SAME(2, RK_PA4, 2, 0x50, BIT(16 + 7) | BIT(7)), /* emmc-1_cmd */
RK_MUXROUTE_SAME(1, RK_PC3, 2, 0x50, BIT(16 + 8)), /* uart2-0_rx */
RK_MUXROUTE_SAME(1, RK_PB2, 2, 0x50, BIT(16 + 8) | BIT(8)), /* uart2-1_rx */
RK_MUXROUTE_SAME(1, RK_PB2, 1, 0x50, BIT(16 + 11)), /* uart1-0_rx */
RK_MUXROUTE_SAME(3, RK_PB5, 1, 0x50, BIT(16 + 11) | BIT(11)), /* uart1-1_rx */
};
static struct rockchip_mux_route_data rk3288_mux_route_data[] = {
RK_MUXROUTE_SAME(7, RK_PC0, 2, 0x264, BIT(16 + 12) | BIT(12)), /* edphdmi_cecinoutt1 */
RK_MUXROUTE_SAME(7, RK_PC7, 4, 0x264, BIT(16 + 12)), /* edphdmi_cecinout */
};
static struct rockchip_mux_route_data rk3308_mux_route_data[] = {
RK_MUXROUTE_SAME(0, RK_PC3, 1, 0x314, BIT(16 + 0) | BIT(0)), /* rtc_clk */
RK_MUXROUTE_SAME(1, RK_PC6, 2, 0x314, BIT(16 + 2) | BIT(16 + 3)), /* uart2_rxm0 */
RK_MUXROUTE_SAME(4, RK_PD2, 2, 0x314, BIT(16 + 2) | BIT(16 + 3) | BIT(2)), /* uart2_rxm1 */
RK_MUXROUTE_SAME(0, RK_PB7, 2, 0x608, BIT(16 + 8) | BIT(16 + 9)), /* i2c3_sdam0 */
RK_MUXROUTE_SAME(3, RK_PB4, 2, 0x608, BIT(16 + 8) | BIT(16 + 9) | BIT(8)), /* i2c3_sdam1 */
RK_MUXROUTE_SAME(2, RK_PA0, 3, 0x608, BIT(16 + 8) | BIT(16 + 9) | BIT(9)), /* i2c3_sdam2 */
RK_MUXROUTE_SAME(1, RK_PA3, 2, 0x308, BIT(16 + 3)), /* i2s-8ch-1-sclktxm0 */
RK_MUXROUTE_SAME(1, RK_PA4, 2, 0x308, BIT(16 + 3)), /* i2s-8ch-1-sclkrxm0 */
RK_MUXROUTE_SAME(1, RK_PB5, 2, 0x308, BIT(16 + 3) | BIT(3)), /* i2s-8ch-1-sclktxm1 */
RK_MUXROUTE_SAME(1, RK_PB6, 2, 0x308, BIT(16 + 3) | BIT(3)), /* i2s-8ch-1-sclkrxm1 */
RK_MUXROUTE_SAME(1, RK_PA4, 3, 0x308, BIT(16 + 12) | BIT(16 + 13)), /* pdm-clkm0 */
RK_MUXROUTE_SAME(1, RK_PB6, 4, 0x308, BIT(16 + 12) | BIT(16 + 13) | BIT(12)), /* pdm-clkm1 */
RK_MUXROUTE_SAME(2, RK_PA6, 2, 0x308, BIT(16 + 12) | BIT(16 + 13) | BIT(13)), /* pdm-clkm2 */
RK_MUXROUTE_SAME(2, RK_PA4, 3, 0x600, BIT(16 + 2) | BIT(2)), /* pdm-clkm-m2 */
RK_MUXROUTE_SAME(3, RK_PB2, 3, 0x314, BIT(16 + 9)), /* spi1_miso */
RK_MUXROUTE_SAME(2, RK_PA4, 2, 0x314, BIT(16 + 9) | BIT(9)), /* spi1_miso_m1 */
RK_MUXROUTE_SAME(0, RK_PB3, 3, 0x314, BIT(16 + 10) | BIT(16 + 11)), /* owire_m0 */
RK_MUXROUTE_SAME(1, RK_PC6, 7, 0x314, BIT(16 + 10) | BIT(16 + 11) | BIT(10)), /* owire_m1 */
RK_MUXROUTE_SAME(2, RK_PA2, 5, 0x314, BIT(16 + 10) | BIT(16 + 11) | BIT(11)), /* owire_m2 */
RK_MUXROUTE_SAME(0, RK_PB3, 2, 0x314, BIT(16 + 12) | BIT(16 + 13)), /* can_rxd_m0 */
RK_MUXROUTE_SAME(1, RK_PC6, 5, 0x314, BIT(16 + 12) | BIT(16 + 13) | BIT(12)), /* can_rxd_m1 */
RK_MUXROUTE_SAME(2, RK_PA2, 4, 0x314, BIT(16 + 12) | BIT(16 + 13) | BIT(13)), /* can_rxd_m2 */
RK_MUXROUTE_SAME(1, RK_PC4, 3, 0x314, BIT(16 + 14)), /* mac_rxd0_m0 */
RK_MUXROUTE_SAME(4, RK_PA2, 2, 0x314, BIT(16 + 14) | BIT(14)), /* mac_rxd0_m1 */
RK_MUXROUTE_SAME(3, RK_PB4, 4, 0x314, BIT(16 + 15)), /* uart3_rx */
RK_MUXROUTE_SAME(0, RK_PC1, 3, 0x314, BIT(16 + 15) | BIT(15)), /* uart3_rx_m1 */
};
static struct rockchip_mux_route_data rk3328_mux_route_data[] = {
RK_MUXROUTE_SAME(1, RK_PA1, 2, 0x50, BIT(16) | BIT(16 + 1)), /* uart2dbg_rxm0 */
RK_MUXROUTE_SAME(2, RK_PA1, 1, 0x50, BIT(16) | BIT(16 + 1) | BIT(0)), /* uart2dbg_rxm1 */
RK_MUXROUTE_SAME(1, RK_PB3, 2, 0x50, BIT(16 + 2) | BIT(2)), /* gmac-m1_rxd0 */
RK_MUXROUTE_SAME(1, RK_PB6, 2, 0x50, BIT(16 + 10) | BIT(10)), /* gmac-m1-optimized_rxd3 */
RK_MUXROUTE_SAME(2, RK_PC3, 2, 0x50, BIT(16 + 3)), /* pdm_sdi0m0 */
RK_MUXROUTE_SAME(1, RK_PC7, 3, 0x50, BIT(16 + 3) | BIT(3)), /* pdm_sdi0m1 */
RK_MUXROUTE_SAME(3, RK_PA2, 4, 0x50, BIT(16 + 4) | BIT(16 + 5) | BIT(5)), /* spi_rxdm2 */
RK_MUXROUTE_SAME(1, RK_PD0, 1, 0x50, BIT(16 + 6)), /* i2s2_sdim0 */
RK_MUXROUTE_SAME(3, RK_PA2, 6, 0x50, BIT(16 + 6) | BIT(6)), /* i2s2_sdim1 */
RK_MUXROUTE_SAME(2, RK_PC6, 3, 0x50, BIT(16 + 7) | BIT(7)), /* card_iom1 */
RK_MUXROUTE_SAME(2, RK_PC0, 3, 0x50, BIT(16 + 8) | BIT(8)), /* tsp_d5m1 */
RK_MUXROUTE_SAME(2, RK_PC0, 4, 0x50, BIT(16 + 9) | BIT(9)), /* cif_data5m1 */
};
static struct rockchip_mux_route_data rk3399_mux_route_data[] = {
RK_MUXROUTE_SAME(4, RK_PB0, 2, 0xe21c, BIT(16 + 10) | BIT(16 + 11)), /* uart2dbga_rx */
RK_MUXROUTE_SAME(4, RK_PC0, 2, 0xe21c, BIT(16 + 10) | BIT(16 + 11) | BIT(10)), /* uart2dbgb_rx */
RK_MUXROUTE_SAME(4, RK_PC3, 1, 0xe21c, BIT(16 + 10) | BIT(16 + 11) | BIT(11)), /* uart2dbgc_rx */
RK_MUXROUTE_SAME(2, RK_PD2, 2, 0xe21c, BIT(16 + 14)), /* pcie_clkreqn */
RK_MUXROUTE_SAME(4, RK_PD0, 1, 0xe21c, BIT(16 + 14) | BIT(14)), /* pcie_clkreqnb */
};
static struct rockchip_mux_route_data rk3568_mux_route_data[] = {
RK_MUXROUTE_PMU(0, RK_PB7, 1, 0x0110, WRITE_MASK_VAL(1, 0, 0)), /* PWM0 IO mux M0 */
RK_MUXROUTE_PMU(0, RK_PC7, 2, 0x0110, WRITE_MASK_VAL(1, 0, 1)), /* PWM0 IO mux M1 */
RK_MUXROUTE_PMU(0, RK_PC0, 1, 0x0110, WRITE_MASK_VAL(3, 2, 0)), /* PWM1 IO mux M0 */
RK_MUXROUTE_PMU(0, RK_PB5, 4, 0x0110, WRITE_MASK_VAL(3, 2, 1)), /* PWM1 IO mux M1 */
RK_MUXROUTE_PMU(0, RK_PC1, 1, 0x0110, WRITE_MASK_VAL(5, 4, 0)), /* PWM2 IO mux M0 */
RK_MUXROUTE_PMU(0, RK_PB6, 4, 0x0110, WRITE_MASK_VAL(5, 4, 1)), /* PWM2 IO mux M1 */
RK_MUXROUTE_PMU(0, RK_PB3, 2, 0x0300, WRITE_MASK_VAL(0, 0, 0)), /* CAN0 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PA1, 4, 0x0300, WRITE_MASK_VAL(0, 0, 1)), /* CAN0 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PA1, 3, 0x0300, WRITE_MASK_VAL(2, 2, 0)), /* CAN1 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC3, 3, 0x0300, WRITE_MASK_VAL(2, 2, 1)), /* CAN1 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PB5, 3, 0x0300, WRITE_MASK_VAL(4, 4, 0)), /* CAN2 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PB2, 4, 0x0300, WRITE_MASK_VAL(4, 4, 1)), /* CAN2 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PC4, 1, 0x0300, WRITE_MASK_VAL(6, 6, 0)), /* HPDIN IO mux M0 */
RK_MUXROUTE_PMU(0, RK_PC2, 2, 0x0300, WRITE_MASK_VAL(6, 6, 1)), /* HPDIN IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB1, 3, 0x0300, WRITE_MASK_VAL(8, 8, 0)), /* GMAC1 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PA7, 3, 0x0300, WRITE_MASK_VAL(8, 8, 1)), /* GMAC1 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PD1, 1, 0x0300, WRITE_MASK_VAL(10, 10, 0)), /* HDMITX IO mux M0 */
RK_MUXROUTE_PMU(0, RK_PC7, 1, 0x0300, WRITE_MASK_VAL(10, 10, 1)), /* HDMITX IO mux M1 */
RK_MUXROUTE_PMU(0, RK_PB6, 1, 0x0300, WRITE_MASK_VAL(14, 14, 0)), /* I2C2 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PB4, 1, 0x0300, WRITE_MASK_VAL(14, 14, 1)), /* I2C2 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PA0, 1, 0x0304, WRITE_MASK_VAL(0, 0, 0)), /* I2C3 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PB6, 4, 0x0304, WRITE_MASK_VAL(0, 0, 1)), /* I2C3 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PB2, 1, 0x0304, WRITE_MASK_VAL(2, 2, 0)), /* I2C4 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PB1, 2, 0x0304, WRITE_MASK_VAL(2, 2, 1)), /* I2C4 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB4, 4, 0x0304, WRITE_MASK_VAL(4, 4, 0)), /* I2C5 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PD0, 2, 0x0304, WRITE_MASK_VAL(4, 4, 1)), /* I2C5 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB1, 5, 0x0304, WRITE_MASK_VAL(14, 14, 0)), /* PWM8 IO mux M0 */
RK_MUXROUTE_GRF(1, RK_PD5, 4, 0x0304, WRITE_MASK_VAL(14, 14, 1)), /* PWM8 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB2, 5, 0x0308, WRITE_MASK_VAL(0, 0, 0)), /* PWM9 IO mux M0 */
RK_MUXROUTE_GRF(1, RK_PD6, 4, 0x0308, WRITE_MASK_VAL(0, 0, 1)), /* PWM9 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB5, 5, 0x0308, WRITE_MASK_VAL(2, 2, 0)), /* PWM10 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PA1, 2, 0x0308, WRITE_MASK_VAL(2, 2, 1)), /* PWM10 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB6, 5, 0x0308, WRITE_MASK_VAL(4, 4, 0)), /* PWM11 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC0, 3, 0x0308, WRITE_MASK_VAL(4, 4, 1)), /* PWM11 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PB7, 2, 0x0308, WRITE_MASK_VAL(6, 6, 0)), /* PWM12 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC5, 1, 0x0308, WRITE_MASK_VAL(6, 6, 1)), /* PWM12 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PC0, 2, 0x0308, WRITE_MASK_VAL(8, 8, 0)), /* PWM13 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC6, 1, 0x0308, WRITE_MASK_VAL(8, 8, 1)), /* PWM13 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PC4, 1, 0x0308, WRITE_MASK_VAL(10, 10, 0)), /* PWM14 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC2, 1, 0x0308, WRITE_MASK_VAL(10, 10, 1)), /* PWM14 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PC5, 1, 0x0308, WRITE_MASK_VAL(12, 12, 0)), /* PWM15 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC3, 1, 0x0308, WRITE_MASK_VAL(12, 12, 1)), /* PWM15 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PD2, 3, 0x0308, WRITE_MASK_VAL(14, 14, 0)), /* SDMMC2 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PA5, 5, 0x0308, WRITE_MASK_VAL(14, 14, 1)), /* SDMMC2 IO mux M1 */
RK_MUXROUTE_PMU(0, RK_PB5, 2, 0x030c, WRITE_MASK_VAL(0, 0, 0)), /* SPI0 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PD3, 3, 0x030c, WRITE_MASK_VAL(0, 0, 1)), /* SPI0 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PB5, 3, 0x030c, WRITE_MASK_VAL(2, 2, 0)), /* SPI1 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PC3, 3, 0x030c, WRITE_MASK_VAL(2, 2, 1)), /* SPI1 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PC1, 4, 0x030c, WRITE_MASK_VAL(4, 4, 0)), /* SPI2 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PA0, 3, 0x030c, WRITE_MASK_VAL(4, 4, 1)), /* SPI2 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PB3, 4, 0x030c, WRITE_MASK_VAL(6, 6, 0)), /* SPI3 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC2, 2, 0x030c, WRITE_MASK_VAL(6, 6, 1)), /* SPI3 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PB4, 2, 0x030c, WRITE_MASK_VAL(8, 8, 0)), /* UART1 IO mux M0 */
RK_MUXROUTE_PMU(0, RK_PD1, 1, 0x030c, WRITE_MASK_VAL(8, 8, 1)), /* UART1 IO mux M1 */
RK_MUXROUTE_PMU(0, RK_PD1, 1, 0x030c, WRITE_MASK_VAL(10, 10, 0)), /* UART2 IO mux M0 */
RK_MUXROUTE_GRF(1, RK_PD5, 2, 0x030c, WRITE_MASK_VAL(10, 10, 1)), /* UART2 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PA1, 2, 0x030c, WRITE_MASK_VAL(12, 12, 0)), /* UART3 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PB7, 4, 0x030c, WRITE_MASK_VAL(12, 12, 1)), /* UART3 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PA6, 2, 0x030c, WRITE_MASK_VAL(14, 14, 0)), /* UART4 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PB2, 4, 0x030c, WRITE_MASK_VAL(14, 14, 1)), /* UART4 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PA2, 3, 0x0310, WRITE_MASK_VAL(0, 0, 0)), /* UART5 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PC2, 4, 0x0310, WRITE_MASK_VAL(0, 0, 1)), /* UART5 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PA4, 3, 0x0310, WRITE_MASK_VAL(2, 2, 0)), /* UART6 IO mux M0 */
RK_MUXROUTE_GRF(1, RK_PD5, 3, 0x0310, WRITE_MASK_VAL(2, 2, 1)), /* UART6 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PA6, 3, 0x0310, WRITE_MASK_VAL(5, 4, 0)), /* UART7 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PC4, 4, 0x0310, WRITE_MASK_VAL(5, 4, 1)), /* UART7 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PA2, 4, 0x0310, WRITE_MASK_VAL(5, 4, 2)), /* UART7 IO mux M2 */
RK_MUXROUTE_GRF(2, RK_PC5, 3, 0x0310, WRITE_MASK_VAL(6, 6, 0)), /* UART8 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PD7, 4, 0x0310, WRITE_MASK_VAL(6, 6, 1)), /* UART8 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PB0, 3, 0x0310, WRITE_MASK_VAL(9, 8, 0)), /* UART9 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC5, 4, 0x0310, WRITE_MASK_VAL(9, 8, 1)), /* UART9 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PA4, 4, 0x0310, WRITE_MASK_VAL(9, 8, 2)), /* UART9 IO mux M2 */
RK_MUXROUTE_GRF(1, RK_PA2, 1, 0x0310, WRITE_MASK_VAL(11, 10, 0)), /* I2S1 IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PC6, 4, 0x0310, WRITE_MASK_VAL(11, 10, 1)), /* I2S1 IO mux M1 */
RK_MUXROUTE_GRF(2, RK_PD0, 5, 0x0310, WRITE_MASK_VAL(11, 10, 2)), /* I2S1 IO mux M2 */
RK_MUXROUTE_GRF(2, RK_PC1, 1, 0x0310, WRITE_MASK_VAL(12, 12, 0)), /* I2S2 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PB6, 5, 0x0310, WRITE_MASK_VAL(12, 12, 1)), /* I2S2 IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PA2, 4, 0x0310, WRITE_MASK_VAL(14, 14, 0)), /* I2S3 IO mux M0 */
RK_MUXROUTE_GRF(4, RK_PC2, 5, 0x0310, WRITE_MASK_VAL(14, 14, 1)), /* I2S3 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PA4, 3, 0x0314, WRITE_MASK_VAL(1, 0, 0)), /* PDM IO mux M0 */
RK_MUXROUTE_GRF(1, RK_PA6, 3, 0x0314, WRITE_MASK_VAL(1, 0, 0)), /* PDM IO mux M0 */
RK_MUXROUTE_GRF(3, RK_PD6, 5, 0x0314, WRITE_MASK_VAL(1, 0, 1)), /* PDM IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PA0, 4, 0x0314, WRITE_MASK_VAL(1, 0, 1)), /* PDM IO mux M1 */
RK_MUXROUTE_GRF(3, RK_PC4, 5, 0x0314, WRITE_MASK_VAL(1, 0, 2)), /* PDM IO mux M2 */
RK_MUXROUTE_PMU(0, RK_PA5, 3, 0x0314, WRITE_MASK_VAL(3, 2, 0)), /* PCIE20 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PD0, 4, 0x0314, WRITE_MASK_VAL(3, 2, 1)), /* PCIE20 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PB0, 4, 0x0314, WRITE_MASK_VAL(3, 2, 2)), /* PCIE20 IO mux M2 */
RK_MUXROUTE_PMU(0, RK_PA4, 3, 0x0314, WRITE_MASK_VAL(5, 4, 0)), /* PCIE30X1 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PD2, 4, 0x0314, WRITE_MASK_VAL(5, 4, 1)), /* PCIE30X1 IO mux M1 */
RK_MUXROUTE_GRF(1, RK_PA5, 4, 0x0314, WRITE_MASK_VAL(5, 4, 2)), /* PCIE30X1 IO mux M2 */
RK_MUXROUTE_PMU(0, RK_PA6, 2, 0x0314, WRITE_MASK_VAL(7, 6, 0)), /* PCIE30X2 IO mux M0 */
RK_MUXROUTE_GRF(2, RK_PD4, 4, 0x0314, WRITE_MASK_VAL(7, 6, 1)), /* PCIE30X2 IO mux M1 */
RK_MUXROUTE_GRF(4, RK_PC2, 4, 0x0314, WRITE_MASK_VAL(7, 6, 2)), /* PCIE30X2 IO mux M2 */
};
static bool rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
int mux, u32 *loc, u32 *reg, u32 *value)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct rockchip_mux_route_data *data;
int i;
for (i = 0; i < ctrl->niomux_routes; i++) {
data = &ctrl->iomux_routes[i];
if ((data->bank_num == bank->bank_num) &&
(data->pin == pin) && (data->func == mux))
break;
}
if (i >= ctrl->niomux_routes)
return false;
*loc = data->route_location;
*reg = data->route_offset;
*value = data->route_val;
return true;
}
static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
{
struct rockchip_pinctrl *info = bank->drvdata;
int iomux_num = (pin / 8);
struct regmap *regmap;
unsigned int val;
int reg, ret, mask, mux_type;
u8 bit;
if (iomux_num > 3)
return -EINVAL;
if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
dev_err(info->dev, "pin %d is unrouted\n", pin);
return -EINVAL;
}
if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
return RK_FUNC_GPIO;
regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
? info->regmap_pmu : info->regmap_base;
/* get basic quadrupel of mux registers and the correct reg inside */
mux_type = bank->iomux[iomux_num].type;
reg = bank->iomux[iomux_num].offset;
if (mux_type & IOMUX_WIDTH_4BIT) {
if ((pin % 8) >= 4)
reg += 0x4;
bit = (pin % 4) * 4;
mask = 0xf;
} else if (mux_type & IOMUX_WIDTH_3BIT) {
if ((pin % 8) >= 5)
reg += 0x4;
bit = (pin % 8 % 5) * 3;
mask = 0x7;
} else {
bit = (pin % 8) * 2;
mask = 0x3;
}
if (bank->recalced_mask & BIT(pin))
rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
ret = regmap_read(regmap, reg, &val);
if (ret)
return ret;
return ((val >> bit) & mask);
}
static int rockchip_verify_mux(struct rockchip_pin_bank *bank,
int pin, int mux)
{
struct rockchip_pinctrl *info = bank->drvdata;
int iomux_num = (pin / 8);
if (iomux_num > 3)
return -EINVAL;
if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
dev_err(info->dev, "pin %d is unrouted\n", pin);
return -EINVAL;
}
if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY) {
if (mux != RK_FUNC_GPIO) {
dev_err(info->dev,
"pin %d only supports a gpio mux\n", pin);
return -ENOTSUPP;
}
}
return 0;
}
/*
* Set a new mux function for a pin.
*
* The register is divided into the upper and lower 16 bit. When changing
* a value, the previous register value is not read and changed. Instead
* it seems the changed bits are marked in the upper 16 bit, while the
* changed value gets set in the same offset in the lower 16 bit.
* All pin settings seem to be 2 bit wide in both the upper and lower
* parts.
* @bank: pin bank to change
* @pin: pin to change
* @mux: new mux function to set
*/
static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
{
struct rockchip_pinctrl *info = bank->drvdata;
int iomux_num = (pin / 8);
struct regmap *regmap;
int reg, ret, mask, mux_type;
u8 bit;
u32 data, rmask, route_location, route_reg, route_val;
ret = rockchip_verify_mux(bank, pin, mux);
if (ret < 0)
return ret;
if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
return 0;
dev_dbg(info->dev, "setting mux of GPIO%d-%d to %d\n",
bank->bank_num, pin, mux);
regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
? info->regmap_pmu : info->regmap_base;
/* get basic quadrupel of mux registers and the correct reg inside */
mux_type = bank->iomux[iomux_num].type;
reg = bank->iomux[iomux_num].offset;
if (mux_type & IOMUX_WIDTH_4BIT) {
if ((pin % 8) >= 4)
reg += 0x4;
bit = (pin % 4) * 4;
mask = 0xf;
} else if (mux_type & IOMUX_WIDTH_3BIT) {
if ((pin % 8) >= 5)
reg += 0x4;
bit = (pin % 8 % 5) * 3;
mask = 0x7;
} else {
bit = (pin % 8) * 2;
mask = 0x3;
}
if (bank->recalced_mask & BIT(pin))
rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
if (bank->route_mask & BIT(pin)) {
if (rockchip_get_mux_route(bank, pin, mux, &route_location,
&route_reg, &route_val)) {
struct regmap *route_regmap = regmap;
/* handle special locations */
switch (route_location) {
case ROCKCHIP_ROUTE_PMU:
route_regmap = info->regmap_pmu;
break;
case ROCKCHIP_ROUTE_GRF:
route_regmap = info->regmap_base;
break;
}
ret = regmap_write(route_regmap, route_reg, route_val);
if (ret)
return ret;
}
}
data = (mask << (bit + 16));
rmask = data | (data >> 16);
data |= (mux & mask) << bit;
ret = regmap_update_bits(regmap, reg, rmask, data);
return ret;
}
#define PX30_PULL_PMU_OFFSET 0x10
#define PX30_PULL_GRF_OFFSET 0x60
#define PX30_PULL_BITS_PER_PIN 2
#define PX30_PULL_PINS_PER_REG 8
#define PX30_PULL_BANK_STRIDE 16
static void px30_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = PX30_PULL_PMU_OFFSET;
} else {
*regmap = info->regmap_base;
*reg = PX30_PULL_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * PX30_PULL_BANK_STRIDE;
}
*reg += ((pin_num / PX30_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % PX30_PULL_PINS_PER_REG);
*bit *= PX30_PULL_BITS_PER_PIN;
}
#define PX30_DRV_PMU_OFFSET 0x20
#define PX30_DRV_GRF_OFFSET 0xf0
#define PX30_DRV_BITS_PER_PIN 2
#define PX30_DRV_PINS_PER_REG 8
#define PX30_DRV_BANK_STRIDE 16
static void px30_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = PX30_DRV_PMU_OFFSET;
} else {
*regmap = info->regmap_base;
*reg = PX30_DRV_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * PX30_DRV_BANK_STRIDE;
}
*reg += ((pin_num / PX30_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % PX30_DRV_PINS_PER_REG);
*bit *= PX30_DRV_BITS_PER_PIN;
}
#define PX30_SCHMITT_PMU_OFFSET 0x38
#define PX30_SCHMITT_GRF_OFFSET 0xc0
#define PX30_SCHMITT_PINS_PER_PMU_REG 16
#define PX30_SCHMITT_BANK_STRIDE 16
#define PX30_SCHMITT_PINS_PER_GRF_REG 8
static int px30_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num,
struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
int pins_per_reg;
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = PX30_SCHMITT_PMU_OFFSET;
pins_per_reg = PX30_SCHMITT_PINS_PER_PMU_REG;
} else {
*regmap = info->regmap_base;
*reg = PX30_SCHMITT_GRF_OFFSET;
pins_per_reg = PX30_SCHMITT_PINS_PER_GRF_REG;
*reg += (bank->bank_num - 1) * PX30_SCHMITT_BANK_STRIDE;
}
*reg += ((pin_num / pins_per_reg) * 4);
*bit = pin_num % pins_per_reg;
return 0;
}
#define RV1108_PULL_PMU_OFFSET 0x10
#define RV1108_PULL_OFFSET 0x110
#define RV1108_PULL_PINS_PER_REG 8
#define RV1108_PULL_BITS_PER_PIN 2
#define RV1108_PULL_BANK_STRIDE 16
static void rv1108_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 24 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RV1108_PULL_PMU_OFFSET;
} else {
*reg = RV1108_PULL_OFFSET;
*regmap = info->regmap_base;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * RV1108_PULL_BANK_STRIDE;
}
*reg += ((pin_num / RV1108_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RV1108_PULL_PINS_PER_REG);
*bit *= RV1108_PULL_BITS_PER_PIN;
}
#define RV1108_DRV_PMU_OFFSET 0x20
#define RV1108_DRV_GRF_OFFSET 0x210
#define RV1108_DRV_BITS_PER_PIN 2
#define RV1108_DRV_PINS_PER_REG 8
#define RV1108_DRV_BANK_STRIDE 16
static void rv1108_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 24 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RV1108_DRV_PMU_OFFSET;
} else {
*regmap = info->regmap_base;
*reg = RV1108_DRV_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * RV1108_DRV_BANK_STRIDE;
}
*reg += ((pin_num / RV1108_DRV_PINS_PER_REG) * 4);
*bit = pin_num % RV1108_DRV_PINS_PER_REG;
*bit *= RV1108_DRV_BITS_PER_PIN;
}
#define RV1108_SCHMITT_PMU_OFFSET 0x30
#define RV1108_SCHMITT_GRF_OFFSET 0x388
#define RV1108_SCHMITT_BANK_STRIDE 8
#define RV1108_SCHMITT_PINS_PER_GRF_REG 16
#define RV1108_SCHMITT_PINS_PER_PMU_REG 8
static int rv1108_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num,
struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
int pins_per_reg;
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RV1108_SCHMITT_PMU_OFFSET;
pins_per_reg = RV1108_SCHMITT_PINS_PER_PMU_REG;
} else {
*regmap = info->regmap_base;
*reg = RV1108_SCHMITT_GRF_OFFSET;
pins_per_reg = RV1108_SCHMITT_PINS_PER_GRF_REG;
*reg += (bank->bank_num - 1) * RV1108_SCHMITT_BANK_STRIDE;
}
*reg += ((pin_num / pins_per_reg) * 4);
*bit = pin_num % pins_per_reg;
return 0;
}
#define RK3308_SCHMITT_PINS_PER_REG 8
#define RK3308_SCHMITT_BANK_STRIDE 16
#define RK3308_SCHMITT_GRF_OFFSET 0x1a0
static int rk3308_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3308_SCHMITT_GRF_OFFSET;
*reg += bank->bank_num * RK3308_SCHMITT_BANK_STRIDE;
*reg += ((pin_num / RK3308_SCHMITT_PINS_PER_REG) * 4);
*bit = pin_num % RK3308_SCHMITT_PINS_PER_REG;
return 0;
}
#define RK2928_PULL_OFFSET 0x118
#define RK2928_PULL_PINS_PER_REG 16
#define RK2928_PULL_BANK_STRIDE 8
static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK2928_PULL_OFFSET;
*reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
*reg += (pin_num / RK2928_PULL_PINS_PER_REG) * 4;
*bit = pin_num % RK2928_PULL_PINS_PER_REG;
};
#define RK3128_PULL_OFFSET 0x118
static void rk3128_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3128_PULL_OFFSET;
*reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
*reg += ((pin_num / RK2928_PULL_PINS_PER_REG) * 4);
*bit = pin_num % RK2928_PULL_PINS_PER_REG;
}
#define RK3188_PULL_OFFSET 0x164
#define RK3188_PULL_BITS_PER_PIN 2
#define RK3188_PULL_PINS_PER_REG 8
#define RK3188_PULL_BANK_STRIDE 16
#define RK3188_PULL_PMU_OFFSET 0x64
static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 12 pins of the first bank are located elsewhere */
if (bank->bank_num == 0 && pin_num < 12) {
*regmap = info->regmap_pmu ? info->regmap_pmu
: bank->regmap_pull;
*reg = info->regmap_pmu ? RK3188_PULL_PMU_OFFSET : 0;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = pin_num % RK3188_PULL_PINS_PER_REG;
*bit *= RK3188_PULL_BITS_PER_PIN;
} else {
*regmap = info->regmap_pull ? info->regmap_pull
: info->regmap_base;
*reg = info->regmap_pull ? 0 : RK3188_PULL_OFFSET;
/* correct the offset, as it is the 2nd pull register */
*reg -= 4;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
/*
* The bits in these registers have an inverse ordering
* with the lowest pin being in bits 15:14 and the highest
* pin in bits 1:0
*/
*bit = 7 - (pin_num % RK3188_PULL_PINS_PER_REG);
*bit *= RK3188_PULL_BITS_PER_PIN;
}
}
#define RK3288_PULL_OFFSET 0x140
static void rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 24 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3188_PULL_PMU_OFFSET;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = pin_num % RK3188_PULL_PINS_PER_REG;
*bit *= RK3188_PULL_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3288_PULL_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
*bit *= RK3188_PULL_BITS_PER_PIN;
}
}
#define RK3288_DRV_PMU_OFFSET 0x70
#define RK3288_DRV_GRF_OFFSET 0x1c0
#define RK3288_DRV_BITS_PER_PIN 2
#define RK3288_DRV_PINS_PER_REG 8
#define RK3288_DRV_BANK_STRIDE 16
static void rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 24 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3288_DRV_PMU_OFFSET;
*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
*bit = pin_num % RK3288_DRV_PINS_PER_REG;
*bit *= RK3288_DRV_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3288_DRV_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
*bit *= RK3288_DRV_BITS_PER_PIN;
}
}
#define RK3228_PULL_OFFSET 0x100
static void rk3228_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3228_PULL_OFFSET;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
*bit *= RK3188_PULL_BITS_PER_PIN;
}
#define RK3228_DRV_GRF_OFFSET 0x200
static void rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3228_DRV_GRF_OFFSET;
*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
*bit *= RK3288_DRV_BITS_PER_PIN;
}
#define RK3308_PULL_OFFSET 0xa0
static void rk3308_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3308_PULL_OFFSET;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
*bit *= RK3188_PULL_BITS_PER_PIN;
}
#define RK3308_DRV_GRF_OFFSET 0x100
static void rk3308_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3308_DRV_GRF_OFFSET;
*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
*bit *= RK3288_DRV_BITS_PER_PIN;
}
#define RK3368_PULL_GRF_OFFSET 0x100
#define RK3368_PULL_PMU_OFFSET 0x10
static void rk3368_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3368_PULL_PMU_OFFSET;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = pin_num % RK3188_PULL_PINS_PER_REG;
*bit *= RK3188_PULL_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3368_PULL_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
*bit *= RK3188_PULL_BITS_PER_PIN;
}
}
#define RK3368_DRV_PMU_OFFSET 0x20
#define RK3368_DRV_GRF_OFFSET 0x200
static void rk3368_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3368_DRV_PMU_OFFSET;
*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
*bit = pin_num % RK3288_DRV_PINS_PER_REG;
*bit *= RK3288_DRV_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3368_DRV_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
*bit *= RK3288_DRV_BITS_PER_PIN;
}
}
#define RK3399_PULL_GRF_OFFSET 0xe040
#define RK3399_PULL_PMU_OFFSET 0x40
#define RK3399_DRV_3BITS_PER_PIN 3
static void rk3399_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The bank0:16 and bank1:32 pins are located in PMU */
if ((bank->bank_num == 0) || (bank->bank_num == 1)) {
*regmap = info->regmap_pmu;
*reg = RK3399_PULL_PMU_OFFSET;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = pin_num % RK3188_PULL_PINS_PER_REG;
*bit *= RK3188_PULL_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3399_PULL_GRF_OFFSET;
/* correct the offset, as we're starting with the 3rd bank */
*reg -= 0x20;
*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
*bit *= RK3188_PULL_BITS_PER_PIN;
}
}
static void rk3399_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
int drv_num = (pin_num / 8);
/* The bank0:16 and bank1:32 pins are located in PMU */
if ((bank->bank_num == 0) || (bank->bank_num == 1))
*regmap = info->regmap_pmu;
else
*regmap = info->regmap_base;
*reg = bank->drv[drv_num].offset;
if ((bank->drv[drv_num].drv_type == DRV_TYPE_IO_1V8_3V0_AUTO) ||
(bank->drv[drv_num].drv_type == DRV_TYPE_IO_3V3_ONLY))
*bit = (pin_num % 8) * 3;
else
*bit = (pin_num % 8) * 2;
}
#define RK3568_PULL_PMU_OFFSET 0x20
#define RK3568_PULL_GRF_OFFSET 0x80
#define RK3568_PULL_BITS_PER_PIN 2
#define RK3568_PULL_PINS_PER_REG 8
#define RK3568_PULL_BANK_STRIDE 0x10
static void rk3568_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3568_PULL_PMU_OFFSET;
*reg += bank->bank_num * RK3568_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3568_PULL_PINS_PER_REG) * 4);
*bit = pin_num % RK3568_PULL_PINS_PER_REG;
*bit *= RK3568_PULL_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3568_PULL_GRF_OFFSET;
*reg += (bank->bank_num - 1) * RK3568_PULL_BANK_STRIDE;
*reg += ((pin_num / RK3568_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % RK3568_PULL_PINS_PER_REG);
*bit *= RK3568_PULL_BITS_PER_PIN;
}
}
#define RK3568_DRV_PMU_OFFSET 0x70
#define RK3568_DRV_GRF_OFFSET 0x200
#define RK3568_DRV_BITS_PER_PIN 8
#define RK3568_DRV_PINS_PER_REG 2
#define RK3568_DRV_BANK_STRIDE 0x40
static void rk3568_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3568_DRV_PMU_OFFSET;
*reg += ((pin_num / RK3568_DRV_PINS_PER_REG) * 4);
*bit = pin_num % RK3568_DRV_PINS_PER_REG;
*bit *= RK3568_DRV_BITS_PER_PIN;
} else {
*regmap = info->regmap_base;
*reg = RK3568_DRV_GRF_OFFSET;
*reg += (bank->bank_num - 1) * RK3568_DRV_BANK_STRIDE;
*reg += ((pin_num / RK3568_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % RK3568_DRV_PINS_PER_REG);
*bit *= RK3568_DRV_BITS_PER_PIN;
}
}
static int rockchip_perpin_drv_list[DRV_TYPE_MAX][8] = {
{ 2, 4, 8, 12, -1, -1, -1, -1 },
{ 3, 6, 9, 12, -1, -1, -1, -1 },
{ 5, 10, 15, 20, -1, -1, -1, -1 },
{ 4, 6, 8, 10, 12, 14, 16, 18 },
{ 4, 7, 10, 13, 16, 19, 22, 26 }
};
static int rockchip_get_drive_perpin(struct rockchip_pin_bank *bank,
int pin_num)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct regmap *regmap;
int reg, ret;
u32 data, temp, rmask_bits;
u8 bit;
int drv_type = bank->drv[pin_num / 8].drv_type;
ctrl->drv_calc_reg(bank, pin_num, &regmap, &reg, &bit);
switch (drv_type) {
case DRV_TYPE_IO_1V8_3V0_AUTO:
case DRV_TYPE_IO_3V3_ONLY:
rmask_bits = RK3399_DRV_3BITS_PER_PIN;
switch (bit) {
case 0 ... 12:
/* regular case, nothing to do */
break;
case 15:
/*
* drive-strength offset is special, as it is
* spread over 2 registers
*/
ret = regmap_read(regmap, reg, &data);
if (ret)
return ret;
ret = regmap_read(regmap, reg + 0x4, &temp);
if (ret)
return ret;
/*
* the bit data[15] contains bit 0 of the value
* while temp[1:0] contains bits 2 and 1
*/
data >>= 15;
temp &= 0x3;
temp <<= 1;
data |= temp;
return rockchip_perpin_drv_list[drv_type][data];
case 18 ... 21:
/* setting fully enclosed in the second register */
reg += 4;
bit -= 16;
break;
default:
dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
bit, drv_type);
return -EINVAL;
}
break;
case DRV_TYPE_IO_DEFAULT:
case DRV_TYPE_IO_1V8_OR_3V0:
case DRV_TYPE_IO_1V8_ONLY:
rmask_bits = RK3288_DRV_BITS_PER_PIN;
break;
default:
dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
drv_type);
return -EINVAL;
}
ret = regmap_read(regmap, reg, &data);
if (ret)
return ret;
data >>= bit;
data &= (1 << rmask_bits) - 1;
return rockchip_perpin_drv_list[drv_type][data];
}
static int rockchip_set_drive_perpin(struct rockchip_pin_bank *bank,
int pin_num, int strength)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct regmap *regmap;
int reg, ret, i;
u32 data, rmask, rmask_bits, temp;
u8 bit;
int drv_type = bank->drv[pin_num / 8].drv_type;
dev_dbg(info->dev, "setting drive of GPIO%d-%d to %d\n",
bank->bank_num, pin_num, strength);
ctrl->drv_calc_reg(bank, pin_num, &regmap, &reg, &bit);
if (ctrl->type == RK3568) {
rmask_bits = RK3568_DRV_BITS_PER_PIN;
ret = (1 << (strength + 1)) - 1;
goto config;
}
ret = -EINVAL;
for (i = 0; i < ARRAY_SIZE(rockchip_perpin_drv_list[drv_type]); i++) {
if (rockchip_perpin_drv_list[drv_type][i] == strength) {
ret = i;
break;
} else if (rockchip_perpin_drv_list[drv_type][i] < 0) {
ret = rockchip_perpin_drv_list[drv_type][i];
break;
}
}
if (ret < 0) {
dev_err(info->dev, "unsupported driver strength %d\n",
strength);
return ret;
}
switch (drv_type) {
case DRV_TYPE_IO_1V8_3V0_AUTO:
case DRV_TYPE_IO_3V3_ONLY:
rmask_bits = RK3399_DRV_3BITS_PER_PIN;
switch (bit) {
case 0 ... 12:
/* regular case, nothing to do */
break;
case 15:
/*
* drive-strength offset is special, as it is spread
* over 2 registers, the bit data[15] contains bit 0
* of the value while temp[1:0] contains bits 2 and 1
*/
data = (ret & 0x1) << 15;
temp = (ret >> 0x1) & 0x3;
rmask = BIT(15) | BIT(31);
data |= BIT(31);
ret = regmap_update_bits(regmap, reg, rmask, data);
if (ret)
return ret;
rmask = 0x3 | (0x3 << 16);
temp |= (0x3 << 16);
reg += 0x4;
ret = regmap_update_bits(regmap, reg, rmask, temp);
return ret;
case 18 ... 21:
/* setting fully enclosed in the second register */
reg += 4;
bit -= 16;
break;
default:
dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
bit, drv_type);
return -EINVAL;
}
break;
case DRV_TYPE_IO_DEFAULT:
case DRV_TYPE_IO_1V8_OR_3V0:
case DRV_TYPE_IO_1V8_ONLY:
rmask_bits = RK3288_DRV_BITS_PER_PIN;
break;
default:
dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
drv_type);
return -EINVAL;
}
config:
/* enable the write to the equivalent lower bits */
data = ((1 << rmask_bits) - 1) << (bit + 16);
rmask = data | (data >> 16);
data |= (ret << bit);
ret = regmap_update_bits(regmap, reg, rmask, data);
return ret;
}
static int rockchip_pull_list[PULL_TYPE_MAX][4] = {
{
PIN_CONFIG_BIAS_DISABLE,
PIN_CONFIG_BIAS_PULL_UP,
PIN_CONFIG_BIAS_PULL_DOWN,
PIN_CONFIG_BIAS_BUS_HOLD
},
{
PIN_CONFIG_BIAS_DISABLE,
PIN_CONFIG_BIAS_PULL_DOWN,
PIN_CONFIG_BIAS_DISABLE,
PIN_CONFIG_BIAS_PULL_UP
},
};
static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct regmap *regmap;
int reg, ret, pull_type;
u8 bit;
u32 data;
/* rk3066b does support any pulls */
if (ctrl->type == RK3066B)
return PIN_CONFIG_BIAS_DISABLE;
ctrl->pull_calc_reg(bank, pin_num, &regmap, &reg, &bit);
ret = regmap_read(regmap, reg, &data);
if (ret)
return ret;
switch (ctrl->type) {
case RK2928:
case RK3128:
return !(data & BIT(bit))
? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
: PIN_CONFIG_BIAS_DISABLE;
case PX30:
case RV1108:
case RK3188:
case RK3288:
case RK3308:
case RK3368:
case RK3399:
pull_type = bank->pull_type[pin_num / 8];
data >>= bit;
data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1;
return rockchip_pull_list[pull_type][data];
default:
dev_err(info->dev, "unsupported pinctrl type\n");
return -EINVAL;
};
}
static int rockchip_set_pull(struct rockchip_pin_bank *bank,
int pin_num, int pull)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct regmap *regmap;
int reg, ret, i, pull_type;
u8 bit;
u32 data, rmask;
dev_dbg(info->dev, "setting pull of GPIO%d-%d to %d\n",
bank->bank_num, pin_num, pull);
/* rk3066b does support any pulls */
if (ctrl->type == RK3066B)
return pull ? -EINVAL : 0;
ctrl->pull_calc_reg(bank, pin_num, &regmap, &reg, &bit);
switch (ctrl->type) {
case RK2928:
case RK3128:
data = BIT(bit + 16);
if (pull == PIN_CONFIG_BIAS_DISABLE)
data |= BIT(bit);
ret = regmap_write(regmap, reg, data);
break;
case PX30:
case RV1108:
case RK3188:
case RK3288:
case RK3308:
case RK3368:
case RK3399:
case RK3568:
pull_type = bank->pull_type[pin_num / 8];
ret = -EINVAL;
for (i = 0; i < ARRAY_SIZE(rockchip_pull_list[pull_type]);
i++) {
if (rockchip_pull_list[pull_type][i] == pull) {
ret = i;
break;
}
}
/*
* In the TRM, pull-up being 1 for everything except the GPIO0_D0-D6,
* where that pull up value becomes 3.
*/
if (ctrl->type == RK3568 && bank->bank_num == 0 && pin_num >= 27 && pin_num <= 30) {
if (ret == 1)
ret = 3;
}
if (ret < 0) {
dev_err(info->dev, "unsupported pull setting %d\n",
pull);
return ret;
}
/* enable the write to the equivalent lower bits */
data = ((1 << RK3188_PULL_BITS_PER_PIN) - 1) << (bit + 16);
rmask = data | (data >> 16);
data |= (ret << bit);
ret = regmap_update_bits(regmap, reg, rmask, data);
break;
default:
dev_err(info->dev, "unsupported pinctrl type\n");
return -EINVAL;
}
return ret;
}
#define RK3328_SCHMITT_BITS_PER_PIN 1
#define RK3328_SCHMITT_PINS_PER_REG 16
#define RK3328_SCHMITT_BANK_STRIDE 8
#define RK3328_SCHMITT_GRF_OFFSET 0x380
static int rk3328_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num,
struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
*regmap = info->regmap_base;
*reg = RK3328_SCHMITT_GRF_OFFSET;
*reg += bank->bank_num * RK3328_SCHMITT_BANK_STRIDE;
*reg += ((pin_num / RK3328_SCHMITT_PINS_PER_REG) * 4);
*bit = pin_num % RK3328_SCHMITT_PINS_PER_REG;
return 0;
}
#define RK3568_SCHMITT_BITS_PER_PIN 2
#define RK3568_SCHMITT_PINS_PER_REG 8
#define RK3568_SCHMITT_BANK_STRIDE 0x10
#define RK3568_SCHMITT_GRF_OFFSET 0xc0
#define RK3568_SCHMITT_PMUGRF_OFFSET 0x30
static int rk3568_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num,
struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = RK3568_SCHMITT_PMUGRF_OFFSET;
} else {
*regmap = info->regmap_base;
*reg = RK3568_SCHMITT_GRF_OFFSET;
*reg += (bank->bank_num - 1) * RK3568_SCHMITT_BANK_STRIDE;
}
*reg += ((pin_num / RK3568_SCHMITT_PINS_PER_REG) * 4);
*bit = pin_num % RK3568_SCHMITT_PINS_PER_REG;
*bit *= RK3568_SCHMITT_BITS_PER_PIN;
return 0;
}
static int rockchip_get_schmitt(struct rockchip_pin_bank *bank, int pin_num)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct regmap *regmap;
int reg, ret;
u8 bit;
u32 data;
ret = ctrl->schmitt_calc_reg(bank, pin_num, &regmap, &reg, &bit);
if (ret)
return ret;
ret = regmap_read(regmap, reg, &data);
if (ret)
return ret;
data >>= bit;
switch (ctrl->type) {
case RK3568:
return data & ((1 << RK3568_SCHMITT_BITS_PER_PIN) - 1);
default:
break;
}
return data & 0x1;
}
static int rockchip_set_schmitt(struct rockchip_pin_bank *bank,
int pin_num, int enable)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
struct regmap *regmap;
int reg, ret;
u8 bit;
u32 data, rmask;
dev_dbg(info->dev, "setting input schmitt of GPIO%d-%d to %d\n",
bank->bank_num, pin_num, enable);
ret = ctrl->schmitt_calc_reg(bank, pin_num, &regmap, &reg, &bit);
if (ret)
return ret;
/* enable the write to the equivalent lower bits */
switch (ctrl->type) {
case RK3568:
data = ((1 << RK3568_SCHMITT_BITS_PER_PIN) - 1) << (bit + 16);
rmask = data | (data >> 16);
data |= ((enable ? 0x2 : 0x1) << bit);
break;
default:
data = BIT(bit + 16) | (enable << bit);
rmask = BIT(bit + 16) | BIT(bit);
break;
}
return regmap_update_bits(regmap, reg, rmask, data);
}
/*
* Pinmux_ops handling
*/
static int rockchip_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
return info->nfunctions;
}
static const char *rockchip_pmx_get_func_name(struct pinctrl_dev *pctldev,
unsigned selector)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
return info->functions[selector].name;
}
static int rockchip_pmx_get_groups(struct pinctrl_dev *pctldev,
unsigned selector, const char * const **groups,
unsigned * const num_groups)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
*groups = info->functions[selector].groups;
*num_groups = info->functions[selector].ngroups;
return 0;
}
static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
unsigned group)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
const unsigned int *pins = info->groups[group].pins;
const struct rockchip_pin_config *data = info->groups[group].data;
struct rockchip_pin_bank *bank;
int cnt, ret = 0;
dev_dbg(info->dev, "enable function %s group %s\n",
info->functions[selector].name, info->groups[group].name);
/*
* for each pin in the pin group selected, program the corresponding
* pin function number in the config register.
*/
for (cnt = 0; cnt < info->groups[group].npins; cnt++) {
bank = pin_to_bank(info, pins[cnt]);
ret = rockchip_set_mux(bank, pins[cnt] - bank->pin_base,
data[cnt].func);
if (ret)
break;
}
if (ret) {
/* revert the already done pin settings */
for (cnt--; cnt >= 0; cnt--)
rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
return ret;
}
return 0;
}
static const struct pinmux_ops rockchip_pmx_ops = {
.get_functions_count = rockchip_pmx_get_funcs_count,
.get_function_name = rockchip_pmx_get_func_name,
.get_function_groups = rockchip_pmx_get_groups,
.set_mux = rockchip_pmx_set,
};
/*
* Pinconf_ops handling
*/
static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
enum pin_config_param pull)
{
switch (ctrl->type) {
case RK2928:
case RK3128:
return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
pull == PIN_CONFIG_BIAS_DISABLE);
case RK3066B:
return pull ? false : true;
case PX30:
case RV1108:
case RK3188:
case RK3288:
case RK3308:
case RK3368:
case RK3399:
case RK3568:
return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
}
return false;
}
/* set the pin config settings for a specified pin */
static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
unsigned long *configs, unsigned num_configs)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
struct gpio_chip *gpio = &bank->gpio_chip;
enum pin_config_param param;
u32 arg;
int i;
int rc;
for (i = 0; i < num_configs; i++) {
param = pinconf_to_config_param(configs[i]);
arg = pinconf_to_config_argument(configs[i]);
switch (param) {
case PIN_CONFIG_BIAS_DISABLE:
rc = rockchip_set_pull(bank, pin - bank->pin_base,
param);
if (rc)
return rc;
break;
case PIN_CONFIG_BIAS_PULL_UP:
case PIN_CONFIG_BIAS_PULL_DOWN:
case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
case PIN_CONFIG_BIAS_BUS_HOLD:
if (!rockchip_pinconf_pull_valid(info->ctrl, param))
return -ENOTSUPP;
if (!arg)
return -EINVAL;
rc = rockchip_set_pull(bank, pin - bank->pin_base,
param);
if (rc)
return rc;
break;
case PIN_CONFIG_OUTPUT:
rc = rockchip_set_mux(bank, pin - bank->pin_base,
RK_FUNC_GPIO);
if (rc != RK_FUNC_GPIO)
return -EINVAL;
rc = gpio->direction_output(gpio, pin - bank->pin_base,
arg);
if (rc)
return rc;
break;
case PIN_CONFIG_DRIVE_STRENGTH:
/* rk3288 is the first with per-pin drive-strength */
if (!info->ctrl->drv_calc_reg)
return -ENOTSUPP;
rc = rockchip_set_drive_perpin(bank,
pin - bank->pin_base, arg);
if (rc < 0)
return rc;
break;
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
if (!info->ctrl->schmitt_calc_reg)
return -ENOTSUPP;
rc = rockchip_set_schmitt(bank,
pin - bank->pin_base, arg);
if (rc < 0)
return rc;
break;
default:
return -ENOTSUPP;
break;
}
} /* for each config */
return 0;
}
/* get the pin config settings for a specified pin */
static int rockchip_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
unsigned long *config)
{
struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
struct gpio_chip *gpio = &bank->gpio_chip;
enum pin_config_param param = pinconf_to_config_param(*config);
u16 arg;
int rc;
switch (param) {
case PIN_CONFIG_BIAS_DISABLE:
if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
return -EINVAL;
arg = 0;
break;
case PIN_CONFIG_BIAS_PULL_UP:
case PIN_CONFIG_BIAS_PULL_DOWN:
case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
case PIN_CONFIG_BIAS_BUS_HOLD:
if (!rockchip_pinconf_pull_valid(info->ctrl, param))
return -ENOTSUPP;
if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
return -EINVAL;
arg = 1;
break;
case PIN_CONFIG_OUTPUT:
rc = rockchip_get_mux(bank, pin - bank->pin_base);
if (rc != RK_FUNC_GPIO)
return -EINVAL;
rc = gpio->get(gpio, pin - bank->pin_base);
if (rc < 0)
return rc;
arg = rc ? 1 : 0;
break;
case PIN_CONFIG_DRIVE_STRENGTH:
/* rk3288 is the first with per-pin drive-strength */
if (!info->ctrl->drv_calc_reg)
return -ENOTSUPP;
rc = rockchip_get_drive_perpin(bank, pin - bank->pin_base);
if (rc < 0)
return rc;
arg = rc;
break;
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
if (!info->ctrl->schmitt_calc_reg)
return -ENOTSUPP;
rc = rockchip_get_schmitt(bank, pin - bank->pin_base);
if (rc < 0)
return rc;
arg = rc;
break;
default:
return -ENOTSUPP;
break;
}
*config = pinconf_to_config_packed(param, arg);
return 0;
}
static const struct pinconf_ops rockchip_pinconf_ops = {
.pin_config_get = rockchip_pinconf_get,
.pin_config_set = rockchip_pinconf_set,
.is_generic = true,
};
static const struct of_device_id rockchip_bank_match[] = {
{ .compatible = "rockchip,gpio-bank" },
{ .compatible = "rockchip,rk3188-gpio-bank0" },
{},
};
static void rockchip_pinctrl_child_count(struct rockchip_pinctrl *info,
struct device_node *np)
{
struct device_node *child;
for_each_child_of_node(np, child) {
if (of_match_node(rockchip_bank_match, child))
continue;
info->nfunctions++;
info->ngroups += of_get_child_count(child);
}
}
static int rockchip_pinctrl_parse_groups(struct device_node *np,
struct rockchip_pin_group *grp,
struct rockchip_pinctrl *info,
u32 index)
{
struct rockchip_pin_bank *bank;
int size;
const __be32 *list;
int num;
int i, j;
int ret;
dev_dbg(info->dev, "group(%d): %pOFn\n", index, np);
/* Initialise group */
grp->name = np->name;
/*
* the binding format is rockchip,pins = <bank pin mux CONFIG>,
* do sanity check and calculate pins number
*/
list = of_get_property(np, "rockchip,pins", &size);
/* we do not check return since it's safe node passed down */
size /= sizeof(*list);
if (!size || size % 4) {
dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n");
return -EINVAL;
}
grp->npins = size / 4;
grp->pins = devm_kcalloc(info->dev, grp->npins, sizeof(unsigned int),
GFP_KERNEL);
grp->data = devm_kcalloc(info->dev,
grp->npins,
sizeof(struct rockchip_pin_config),
GFP_KERNEL);
if (!grp->pins || !grp->data)
return -ENOMEM;
for (i = 0, j = 0; i < size; i += 4, j++) {
const __be32 *phandle;
struct device_node *np_config;
num = be32_to_cpu(*list++);
bank = bank_num_to_bank(info, num);
if (IS_ERR(bank))
return PTR_ERR(bank);
grp->pins[j] = bank->pin_base + be32_to_cpu(*list++);
grp->data[j].func = be32_to_cpu(*list++);
phandle = list++;
if (!phandle)
return -EINVAL;
np_config = of_find_node_by_phandle(be32_to_cpup(phandle));
ret = pinconf_generic_parse_dt_config(np_config, NULL,
&grp->data[j].configs, &grp->data[j].nconfigs);
if (ret)
return ret;
}
return 0;
}
static int rockchip_pinctrl_parse_functions(struct device_node *np,
struct rockchip_pinctrl *info,
u32 index)
{
struct device_node *child;
struct rockchip_pmx_func *func;
struct rockchip_pin_group *grp;
int ret;
static u32 grp_index;
u32 i = 0;
dev_dbg(info->dev, "parse function(%d): %pOFn\n", index, np);
func = &info->functions[index];
/* Initialise function */
func->name = np->name;
func->ngroups = of_get_child_count(np);
if (func->ngroups <= 0)
return 0;
func->groups = devm_kcalloc(info->dev,
func->ngroups, sizeof(char *), GFP_KERNEL);
if (!func->groups)
return -ENOMEM;
for_each_child_of_node(np, child) {
func->groups[i] = child->name;
grp = &info->groups[grp_index++];
ret = rockchip_pinctrl_parse_groups(child, grp, info, i++);
if (ret) {
of_node_put(child);
return ret;
}
}
return 0;
}
static int rockchip_pinctrl_parse_dt(struct platform_device *pdev,
struct rockchip_pinctrl *info)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct device_node *child;
int ret;
int i;
rockchip_pinctrl_child_count(info, np);
dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
info->functions = devm_kcalloc(dev,
info->nfunctions,
sizeof(struct rockchip_pmx_func),