[PATCH v2] pinctrl/rockchip: splite soc data to separated driver

Jianqun Xu
2020-01-13T01:17:58Z

* Decrease codes of pinctrl-rockchip.c from 4,000 lines to 2000 by
separating soc data to a new file.

* Move rockchip pinctrl related struct definations to a head file.

* Keep legency pinctrl-rockchip.c under driver/pinctrl but not to
compile it, conveniently for reviewers.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
changes since v1:
- add rockchip_pinctrl_remove
- remove unused head files in pinctrl-rockchip.h

drivers/pinctrl/Kconfig | 8 +-
drivers/pinctrl/Makefile | 2 +-
drivers/pinctrl/rockchip/Kconfig | 123 ++
drivers/pinctrl/rockchip/Makefile | 16 +
drivers/pinctrl/rockchip/pinctrl-px30.c | 223 ++
drivers/pinctrl/rockchip/pinctrl-rk2928.c | 68 +
drivers/pinctrl/rockchip/pinctrl-rk3036.c | 67 +
drivers/pinctrl/rockchip/pinctrl-rk3066.c | 70 +
drivers/pinctrl/rockchip/pinctrl-rk3066b.c | 49 +
drivers/pinctrl/rockchip/pinctrl-rk3128.c | 159 ++
drivers/pinctrl/rockchip/pinctrl-rk3188.c | 90 +
drivers/pinctrl/rockchip/pinctrl-rk3228.c | 223 ++
drivers/pinctrl/rockchip/pinctrl-rk3288.c | 165 ++
drivers/pinctrl/rockchip/pinctrl-rk3308.c | 413 ++++
drivers/pinctrl/rockchip/pinctrl-rk3328.c | 271 +++
drivers/pinctrl/rockchip/pinctrl-rk3368.c | 124 ++
drivers/pinctrl/rockchip/pinctrl-rk3399.c | 198 ++
drivers/pinctrl/rockchip/pinctrl-rockchip.c | 2126 +++++++++++++++++++
drivers/pinctrl/rockchip/pinctrl-rockchip.h | 363 ++++
drivers/pinctrl/rockchip/pinctrl-rv1108.c | 210 ++
20 files changed, 4960 insertions(+), 8 deletions(-)
create mode 100644 drivers/pinctrl/rockchip/Kconfig
create mode 100644 drivers/pinctrl/rockchip/Makefile
create mode 100644 drivers/pinctrl/rockchip/pinctrl-px30.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk2928.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3036.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3066.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3066b.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3128.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3188.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3228.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3288.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3308.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3328.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3368.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3399.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rockchip.c
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rockchip.h
create mode 100644 drivers/pinctrl/rockchip/pinctrl-rv1108.c

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 3bfbf2ff6e2b..17ce48220795 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -186,13 +186,6 @@ config PINCTRL_OXNAS
select GPIOLIB_IRQCHIP
select MFD_SYSCON

-config PINCTRL_ROCKCHIP
- bool
- select PINMUX
- select GENERIC_PINCONF
- select GENERIC_IRQ_CHIP
- select MFD_SYSCON
-
config PINCTRL_RZA1
bool "Renesas RZ/A1 gpio and pinctrl driver"
depends on OF
@@ -395,6 +388,7 @@ source "drivers/pinctrl/nomadik/Kconfig"
source "drivers/pinctrl/nuvoton/Kconfig"
source "drivers/pinctrl/pxa/Kconfig"
source "drivers/pinctrl/qcom/Kconfig"
+source "drivers/pinctrl/rockchip/Kconfig"
source "drivers/pinctrl/samsung/Kconfig"
source "drivers/pinctrl/sh-pfc/Kconfig"
source "drivers/pinctrl/spear/Kconfig"
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 879f312bfb75..262d1a515c10 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_PINCTRL_OXNAS) += pinctrl-oxnas.o
obj-$(CONFIG_PINCTRL_PALMAS) += pinctrl-palmas.o
obj-$(CONFIG_PINCTRL_PIC32) += pinctrl-pic32.o
obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o
-obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
obj-$(CONFIG_PINCTRL_RZA1) += pinctrl-rza1.o
obj-$(CONFIG_PINCTRL_RZA2) += pinctrl-rza2.o
obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o
@@ -59,6 +58,7 @@ obj-y += nomadik/
obj-$(CONFIG_ARCH_NPCM7XX) += nuvoton/
obj-$(CONFIG_PINCTRL_PXA) += pxa/
obj-$(CONFIG_ARCH_QCOM) += qcom/
+obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
obj-$(CONFIG_PINCTRL_SAMSUNG) += samsung/
obj-$(CONFIG_PINCTRL_SH_PFC) += sh-pfc/
obj-$(CONFIG_PINCTRL_SPEAR) += spear/
diff --git a/drivers/pinctrl/rockchip/Kconfig b/drivers/pinctrl/rockchip/Kconfig
new file mode 100644
index 000000000000..84df1c95f9be
--- /dev/null
+++ b/drivers/pinctrl/rockchip/Kconfig
@@ -0,0 +1,123 @@
+if (ARCH_ROCKCHIP || COMPILE_TEST)
+
+config PINCTRL_ROCKCHIP
+ bool
+ select PINMUX
+ select PINCONF
+ select GENERIC_PINCONF
+ select GPIOLIB_IRQCHIP
+ select MFD_SYSCON
+
+config PINCTRL_PX30
+ tristate "PX30 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK2928
+ tristate "RK2928 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3036
+ tristate "RK3036 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3066
+ tristate "RK3066 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3066B
+ tristate "RK3066B pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3128
+ tristate "RK3128 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3188
+ tristate "RK3188 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3228
+ tristate "RK3228 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3288
+ tristate "RK3288 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3308
+ tristate "RK3308 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3328
+ tristate "RK3328 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3368
+ tristate "RK3368 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RK3399
+ tristate "RK3399 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+config PINCTRL_RV1108
+ tristate "RV1108 pin controller driver"
+ depends on GPIOLIB && OF
+ select PINCTRL_ROCKCHIP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ SoCs on Rockchip platform.
+
+endif
diff --git a/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile
new file mode 100644
index 000000000000..472c0afa3106
--- /dev/null
+++ b/drivers/pinctrl/rockchip/Makefile
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
+obj-$(CONFIG_PINCTRL_PX30) += pinctrl-px30.o
+obj-$(CONFIG_PINCTRL_RK2928) += pinctrl-rk2928.o
+obj-$(CONFIG_PINCTRL_RK3036) += pinctrl-rk3036.o
+obj-$(CONFIG_PINCTRL_RK3066) += pinctrl-rk3066.o
+obj-$(CONFIG_PINCTRL_RK3066B) += pinctrl-rk3066b.o
+obj-$(CONFIG_PINCTRL_RK3128) += pinctrl-rk3128.o
+obj-$(CONFIG_PINCTRL_RK3188) += pinctrl-rk3188.o
+obj-$(CONFIG_PINCTRL_RK3228) += pinctrl-rk3228.o
+obj-$(CONFIG_PINCTRL_RK3288) += pinctrl-rk3288.o
+obj-$(CONFIG_PINCTRL_RK3308) += pinctrl-rk3308.o
+obj-$(CONFIG_PINCTRL_RK3328) += pinctrl-rk3328.o
+obj-$(CONFIG_PINCTRL_RK3368) += pinctrl-rk3368.o
+obj-$(CONFIG_PINCTRL_RK3399) += pinctrl-rk3399.o
+obj-$(CONFIG_PINCTRL_RV1108) += pinctrl-rv1108.o
diff --git a/drivers/pinctrl/rockchip/pinctrl-px30.c b/drivers/pinctrl/rockchip/pinctrl-px30.c
new file mode 100644
index 000000000000..854ffd7658e8
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-px30.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+
+#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
+
+#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
+
+#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 struct rockchip_mux_route_data px30_mux_route_data[] = {
+ {
+ /* cif-d2m0 */
+ .bank_num = 2,
+ .pin = 0,
+ .func = 1,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 7),
+ }, {
+ /* cif-d2m1 */
+ .bank_num = 3,
+ .pin = 3,
+ .func = 3,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 7) | BIT(7),
+ }, {
+ /* pdm-m0 */
+ .bank_num = 3,
+ .pin = 22,
+ .func = 2,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 8),
+ }, {
+ /* pdm-m1 */
+ .bank_num = 2,
+ .pin = 22,
+ .func = 1,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 8) | BIT(8),
+ }, {
+ /* uart2-rxm0 */
+ .bank_num = 1,
+ .pin = 27,
+ .func = 2,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 10),
+ }, {
+ /* uart2-rxm1 */
+ .bank_num = 2,
+ .pin = 14,
+ .func = 2,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 10) | BIT(10),
+ }, {
+ /* uart3-rxm0 */
+ .bank_num = 0,
+ .pin = 17,
+ .func = 2,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 9),
+ }, {
+ /* uart3-rxm1 */
+ .bank_num = 1,
+ .pin = 15,
+ .func = 2,
+ .route_offset = 0x184,
+ .route_val = BIT(16 + 9) | BIT(9),
+ },
+};
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+static struct rockchip_pin_bank px30_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU
+ ),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT
+ ),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT
+ ),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT
+ ),
+};
+
+static struct rockchip_pin_ctrl px30_pin_ctrl = {
+ .pin_banks = px30_pin_banks,
+ .nr_banks = ARRAY_SIZE(px30_pin_banks),
+ .label = "PX30-GPIO",
+ .type = PX30,
+ .grf_mux_offset = 0x0,
+ .pmu_mux_offset = 0x0,
+ .iomux_routes = px30_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(px30_mux_route_data),
+ .pull_calc_reg = px30_calc_pull_reg_and_bit,
+ .drv_calc_reg = px30_calc_drv_reg_and_bit,
+ .schmitt_calc_reg = px30_calc_schmitt_reg_and_bit,
+};
+
+static const struct of_device_id px30_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,px30-pinctrl" },
+ {},
+};
+
+static int px30_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &px30_pin_ctrl);
+}
+
+static struct platform_driver px30_pinctrl_driver = {
+ .probe = px30_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "px30-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = px30_pinctrl_dt_match,
+ },
+};
+
+static int __init px30_pinctrl_init(void)
+{
+ return platform_driver_register(&px30_pinctrl_driver);
+}
+postcore_initcall(px30_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk2928.c b/drivers/pinctrl/rockchip/pinctrl-rk2928.c
new file mode 100644
index 000000000000..8b725aade70e
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk2928.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#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;
+};
+
+static struct rockchip_pin_bank rk2928_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk2928_pin_ctrl = {
+ .pin_banks = rk2928_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk2928_pin_banks),
+ .label = "RK2928-GPIO",
+ .type = RK2928,
+ .grf_mux_offset = 0xa8,
+ .pull_calc_reg = rk2928_calc_pull_reg_and_bit,
+};
+
+static const struct of_device_id rk2928_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk2928-pinctrl" },
+ {},
+};
+
+static int rk2928_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk2928_pin_ctrl);
+}
+
+static struct platform_driver rk2928_pinctrl_driver = {
+ .probe = rk2928_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk2928-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk2928_pinctrl_dt_match,
+ },
+};
+
+static int __init rk2928_pinctrl_init(void)
+{
+ return platform_driver_register(&rk2928_pinctrl_driver);
+}
+postcore_initcall(rk2928_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3036.c b/drivers/pinctrl/rockchip/pinctrl-rk3036.c
new file mode 100644
index 000000000000..cc45bc1e3c27
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3036.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3036_PULL_OFFSET 0x118
+#define RK3036_PULL_PINS_PER_REG 16
+#define RK3036_PULL_BANK_STRIDE 8
+
+static void rk3036_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 = RK3036_PULL_OFFSET;
+ *reg += bank->bank_num * RK3036_PULL_BANK_STRIDE;
+ *reg += (pin_num / RK3036_PULL_PINS_PER_REG) * 4;
+
+ *bit = pin_num % RK3036_PULL_PINS_PER_REG;
+};
+
+static struct rockchip_pin_bank rk3036_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+};
+
+static struct rockchip_pin_ctrl rk3036_pin_ctrl = {
+ .pin_banks = rk3036_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3036_pin_banks),
+ .label = "RK3036-GPIO",
+ .type = RK2928,
+ .grf_mux_offset = 0xa8,
+ .pull_calc_reg = rk3036_calc_pull_reg_and_bit,
+};
+
+static const struct of_device_id rk3036_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3036-pinctrl" },
+ {},
+};
+
+static int rk3036_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3036_pin_ctrl);
+}
+
+static struct platform_driver rk3036_pinctrl_driver = {
+ .probe = rk3036_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3036-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3036_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3036_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3036_pinctrl_driver);
+}
+postcore_initcall(rk3036_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3066.c b/drivers/pinctrl/rockchip/pinctrl-rk3066.c
new file mode 100644
index 000000000000..5534ab52492e
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3066.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3066_PULL_GRF_OFFSET 0x118
+#define RK3066_PULL_PINS_PER_REG 16
+#define RK3066_PULL_BANK_STRIDE 8
+
+static void rk3066_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 = RK3066_PULL_GRF_OFFSET;
+ *reg += bank->bank_num * RK3066_PULL_BANK_STRIDE;
+ *reg += (pin_num / RK3066_PULL_PINS_PER_REG) * 4;
+
+ *bit = pin_num % RK3066_PULL_PINS_PER_REG;
+};
+
+static struct rockchip_pin_bank rk3066_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+ PIN_BANK(4, 32, "gpio4"),
+ PIN_BANK(6, 16, "gpio6"),
+};
+
+static struct rockchip_pin_ctrl rk3066_pin_ctrl = {
+ .pin_banks = rk3066_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3066_pin_banks),
+ .label = "RK3066-GPIO",
+ .type = RK2928,
+ .grf_mux_offset = 0xa8,
+ .pull_calc_reg = rk3066_calc_pull_reg_and_bit,
+};
+
+static const struct of_device_id rk3066_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3066-pinctrl" },
+ {},
+};
+
+static int rk3066_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3066_pin_ctrl);
+}
+
+static struct platform_driver rk3066_pinctrl_driver = {
+ .probe = rk3066_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3066-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3066_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3066_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3066_pinctrl_driver);
+}
+postcore_initcall(rk3066_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3066b.c b/drivers/pinctrl/rockchip/pinctrl-rk3066b.c
new file mode 100644
index 000000000000..e38f03767ea7
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3066b.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+static struct rockchip_pin_bank rk3066b_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3066b_pin_ctrl = {
+ .pin_banks = rk3066b_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3066b_pin_banks),
+ .label = "RK3066b-GPIO",
+ .type = RK3066B,
+ .grf_mux_offset = 0x60,
+};
+
+static const struct of_device_id rk3066b_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3066b-pinctrl" },
+ {},
+};
+
+static int rk3066b_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3066b_pin_ctrl);
+}
+
+static struct platform_driver rk3066b_pinctrl_driver = {
+ .probe = rk3066b_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3066b-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3066b_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3066b_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3066b_pinctrl_driver);
+}
+postcore_initcall(rk3066b_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3128.c b/drivers/pinctrl/rockchip/pinctrl-rk3128.c
new file mode 100644
index 000000000000..91fd6b1f8e65
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3128.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3128_PULL_GRF_OFFSET 0x118
+#define RK3128_PULL_PINS_PER_REG 16
+#define RK3128_PULL_BANK_STRIDE 8
+
+static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
+ {
+ /* spi-0 */
+ .bank_num = 1,
+ .pin = 10,
+ .func = 1,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 3) | BIT(16 + 4),
+ }, {
+ /* spi-1 */
+ .bank_num = 1,
+ .pin = 27,
+ .func = 3,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(3),
+ }, {
+ /* spi-2 */
+ .bank_num = 0,
+ .pin = 13,
+ .func = 2,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(4),
+ }, {
+ /* i2s-0 */
+ .bank_num = 1,
+ .pin = 5,
+ .func = 1,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 5),
+ }, {
+ /* i2s-1 */
+ .bank_num = 0,
+ .pin = 14,
+ .func = 1,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 5) | BIT(5),
+ }, {
+ /* emmc-0 */
+ .bank_num = 1,
+ .pin = 22,
+ .func = 2,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 6),
+ }, {
+ /* emmc-1 */
+ .bank_num = 2,
+ .pin = 4,
+ .func = 2,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 6) | BIT(6),
+ },
+};
+
+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 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_GRF_OFFSET;
+ *reg += bank->bank_num * RK3128_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3128_PULL_PINS_PER_REG) * 4);
+
+ *bit = pin_num % RK3128_PULL_PINS_PER_REG;
+}
+
+static struct rockchip_pin_bank rk3128_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3128_pin_ctrl = {
+ .pin_banks = rk3128_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3128_pin_banks),
+ .label = "RK3128-GPIO",
+ .type = RK3128,
+ .grf_mux_offset = 0xa8,
+ .iomux_recalced = rk3128_mux_recalced_data,
+ .niomux_recalced = ARRAY_SIZE(rk3128_mux_recalced_data),
+ .iomux_routes = rk3128_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3128_mux_route_data),
+ .pull_calc_reg = rk3128_calc_pull_reg_and_bit,
+};
+
+static const struct of_device_id rk3128_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3128-pinctrl" },
+ {},
+};
+
+static int rk3128_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3128_pin_ctrl);
+}
+
+static struct platform_driver rk3128_pinctrl_driver = {
+ .probe = rk3128_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3128-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3128_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3128_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3128_pinctrl_driver);
+}
+postcore_initcall(rk3128_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3188.c b/drivers/pinctrl/rockchip/pinctrl-rk3188.c
new file mode 100644
index 000000000000..cf0fea740405
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3188.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3188_PULL_GRF_OFFSET 0x164
+#define RK3188_PULL_PMU_OFFSET 0x64
+#define RK3188_PULL_BITS_PER_PIN 2
+#define RK3188_PULL_PINS_PER_REG 8
+#define RK3188_PULL_BANK_STRIDE 16
+
+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_GRF_OFFSET;
+
+ /* correct the offset, as it is the second 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;
+ }
+}
+
+static struct rockchip_pin_bank rk3188_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
+ .pin_banks = rk3188_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3188_pin_banks),
+ .label = "RK3188-GPIO",
+ .type = RK3188,
+ .grf_mux_offset = 0x60,
+ .pull_calc_reg = rk3188_calc_pull_reg_and_bit,
+};
+
+static const struct of_device_id rk3188_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3188-pinctrl" },
+ {},
+};
+
+static int rk3188_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3188_pin_ctrl);
+}
+
+static struct platform_driver rk3188_pinctrl_driver = {
+ .probe = rk3188_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3188-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3188_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3188_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3188_pinctrl_driver);
+}
+postcore_initcall(rk3188_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3228.c b/drivers/pinctrl/rockchip/pinctrl-rk3228.c
new file mode 100644
index 000000000000..c0b0aaa4ea74
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3228.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3228_PULL_GRF_OFFSET 0x100
+#define RK3228_PULL_BITS_PER_PIN 2
+#define RK3228_PULL_PINS_PER_REG 8
+#define RK3228_PULL_BANK_STRIDE 16
+
+#define RK3228_DRV_GRF_OFFSET 0x200
+#define RK3228_DRV_BITS_PER_PIN 2
+#define RK3228_DRV_PINS_PER_REG 8
+#define RK3228_DRV_BANK_STRIDE 16
+
+static struct rockchip_mux_route_data rk3228_mux_route_data[] = {
+ {
+ /* pwm0-0 */
+ .bank_num = 0,
+ .pin = 26,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16),
+ }, {
+ /* pwm0-1 */
+ .bank_num = 3,
+ .pin = 21,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16) | BIT(0),
+ }, {
+ /* pwm1-0 */
+ .bank_num = 0,
+ .pin = 27,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 1),
+ }, {
+ /* pwm1-1 */
+ .bank_num = 0,
+ .pin = 30,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 1) | BIT(1),
+ }, {
+ /* pwm2-0 */
+ .bank_num = 0,
+ .pin = 28,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 2),
+ }, {
+ /* pwm2-1 */
+ .bank_num = 1,
+ .pin = 12,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 2) | BIT(2),
+ }, {
+ /* pwm3-0 */
+ .bank_num = 3,
+ .pin = 26,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 3),
+ }, {
+ /* pwm3-1 */
+ .bank_num = 1,
+ .pin = 11,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 3) | BIT(3),
+ }, {
+ /* sdio-0_d0 */
+ .bank_num = 1,
+ .pin = 1,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 4),
+ }, {
+ /* sdio-1_d0 */
+ .bank_num = 3,
+ .pin = 2,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 4) | BIT(4),
+ }, {
+ /* spi-0_rx */
+ .bank_num = 0,
+ .pin = 13,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 5),
+ }, {
+ /* spi-1_rx */
+ .bank_num = 2,
+ .pin = 0,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 5) | BIT(5),
+ }, {
+ /* emmc-0_cmd */
+ .bank_num = 1,
+ .pin = 22,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 7),
+ }, {
+ /* emmc-1_cmd */
+ .bank_num = 2,
+ .pin = 4,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 7) | BIT(7),
+ }, {
+ /* uart2-0_rx */
+ .bank_num = 1,
+ .pin = 19,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 8),
+ }, {
+ /* uart2-1_rx */
+ .bank_num = 1,
+ .pin = 10,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 8) | BIT(8),
+ }, {
+ /* uart1-0_rx */
+ .bank_num = 1,
+ .pin = 10,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 11),
+ }, {
+ /* uart1-1_rx */
+ .bank_num = 3,
+ .pin = 13,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 11) | BIT(11),
+ },
+};
+
+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_GRF_OFFSET;
+ *reg += bank->bank_num * RK3228_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3228_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3228_PULL_PINS_PER_REG);
+ *bit *= RK3228_PULL_BITS_PER_PIN;
+}
+
+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 * RK3228_DRV_BANK_STRIDE;
+ *reg += ((pin_num / RK3228_DRV_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3228_DRV_PINS_PER_REG);
+ *bit *= RK3228_DRV_BITS_PER_PIN;
+}
+
+static struct rockchip_pin_bank rk3228_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3228_pin_ctrl = {
+ .pin_banks = rk3228_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3228_pin_banks),
+ .label = "RK3228-GPIO",
+ .type = RK3288,
+ .grf_mux_offset = 0x0,
+ .iomux_routes = rk3228_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3228_mux_route_data),
+ .pull_calc_reg = rk3228_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3228_calc_drv_reg_and_bit,
+};
+
+static const struct of_device_id rk3228_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3228-pinctrl" },
+ {},
+};
+
+static int rk3228_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3228_pin_ctrl);
+}
+
+static struct platform_driver rk3228_pinctrl_driver = {
+ .probe = rk3228_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3228-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3228_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3228_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3228_pinctrl_driver);
+}
+postcore_initcall(rk3228_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3288.c b/drivers/pinctrl/rockchip/pinctrl-rk3288.c
new file mode 100644
index 000000000000..3f74552c71f3
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3288.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3288_PULL_GRF_OFFSET 0x140
+#define RK3288_PULL_PMU_OFFSET 0x64
+#define RK3288_PULL_BITS_PER_PIN 2
+#define RK3288_PULL_PINS_PER_REG 8
+#define RK3288_PULL_BANK_STRIDE 16
+
+#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 struct rockchip_mux_route_data rk3288_mux_route_data[] = {
+ {
+ /* edphdmi_cecinoutt1 */
+ .bank_num = 7,
+ .pin = 16,
+ .func = 2,
+ .route_offset = 0x264,
+ .route_val = BIT(16 + 12) | BIT(12),
+ }, {
+ /* edphdmi_cecinout */
+ .bank_num = 7,
+ .pin = 23,
+ .func = 4,
+ .route_offset = 0x264,
+ .route_val = BIT(16 + 12),
+ },
+};
+
+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 = RK3288_PULL_PMU_OFFSET;
+
+ *reg += ((pin_num / RK3288_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3288_PULL_PINS_PER_REG;
+ *bit *= RK3288_PULL_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ *reg = RK3288_PULL_GRF_OFFSET;
+
+ /* correct the offset, as we're starting with the 2nd bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3288_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3288_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3288_PULL_PINS_PER_REG);
+ *bit *= RK3288_PULL_BITS_PER_PIN;
+ }
+}
+
+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;
+ }
+}
+
+static struct rockchip_pin_bank rk3288_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_UNROUTED,
+ IOMUX_UNROUTED,
+ IOMUX_UNROUTED,
+ 0
+ ),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, IOMUX_UNROUTED),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, IOMUX_WIDTH_4BIT),
+ PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0,
+ 0
+ ),
+ PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5", IOMUX_UNROUTED,
+ 0,
+ 0,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0, IOMUX_UNROUTED),
+ PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0,
+ 0,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK(8, 16, "gpio8"),
+};
+
+static struct rockchip_pin_ctrl rk3288_pin_ctrl = {
+ .pin_banks = rk3288_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3288_pin_banks),
+ .label = "RK3288-GPIO",
+ .type = RK3288,
+ .grf_mux_offset = 0x0,
+ .pmu_mux_offset = 0x84,
+ .iomux_routes = rk3288_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3288_mux_route_data),
+ .pull_calc_reg = rk3288_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3288_calc_drv_reg_and_bit,
+};
+
+static const struct of_device_id rk3288_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3288-pinctrl" },
+ {},
+};
+
+static int rk3288_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3288_pin_ctrl);
+}
+
+static struct platform_driver rk3288_pinctrl_driver = {
+ .probe = rk3288_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3288-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3288_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3288_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3288_pinctrl_driver);
+}
+postcore_initcall(rk3288_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3308.c b/drivers/pinctrl/rockchip/pinctrl-rk3308.c
new file mode 100644
index 000000000000..b65fe4f369c8
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3308.c
@@ -0,0 +1,413 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3308_PULL_GRF_OFFSET 0xa0
+#define RK3308_PULL_BITS_PER_PIN 2
+#define RK3308_PULL_PINS_PER_REG 8
+#define RK3308_PULL_BANK_STRIDE 16
+
+#define RK3308_DRV_GRF_OFFSET 0x100
+#define RK3308_DRV_BITS_PER_PIN 2
+#define RK3308_DRV_PINS_PER_REG 8
+#define RK3308_DRV_BANK_STRIDE 16
+
+#define RK3308_SCHMITT_PINS_PER_REG 8
+#define RK3308_SCHMITT_BANK_STRIDE 16
+#define RK3308_SCHMITT_GRF_OFFSET 0x1a0
+
+static struct rockchip_mux_route_data rk3308_mux_route_data[] = {
+ {
+ /* rtc_clk */
+ .bank_num = 0,
+ .pin = 19,
+ .func = 1,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 0) | BIT(0),
+ }, {
+ /* uart2_rxm0 */
+ .bank_num = 1,
+ .pin = 22,
+ .func = 2,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 2) | BIT(16 + 3),
+ }, {
+ /* uart2_rxm1 */
+ .bank_num = 4,
+ .pin = 26,
+ .func = 2,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 2) | BIT(16 + 3) | BIT(2),
+ }, {
+ /* i2c3_sdam0 */
+ .bank_num = 0,
+ .pin = 15,
+ .func = 2,
+ .route_offset = 0x608,
+ .route_val = BIT(16 + 8) | BIT(16 + 9),
+ }, {
+ /* i2c3_sdam1 */
+ .bank_num = 3,
+ .pin = 12,
+ .func = 2,
+ .route_offset = 0x608,
+ .route_val = BIT(16 + 8) | BIT(16 + 9) | BIT(8),
+ }, {
+ /* i2c3_sdam2 */
+ .bank_num = 2,
+ .pin = 0,
+ .func = 3,
+ .route_offset = 0x608,
+ .route_val = BIT(16 + 8) | BIT(16 + 9) | BIT(9),
+ }, {
+ /* i2s-8ch-1-sclktxm0 */
+ .bank_num = 1,
+ .pin = 3,
+ .func = 2,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 3),
+ }, {
+ /* i2s-8ch-1-sclkrxm0 */
+ .bank_num = 1,
+ .pin = 4,
+ .func = 2,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 3),
+ }, {
+ /* i2s-8ch-1-sclktxm1 */
+ .bank_num = 1,
+ .pin = 13,
+ .func = 2,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 3) | BIT(3),
+ }, {
+ /* i2s-8ch-1-sclkrxm1 */
+ .bank_num = 1,
+ .pin = 14,
+ .func = 2,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 3) | BIT(3),
+ }, {
+ /* pdm-clkm0 */
+ .bank_num = 1,
+ .pin = 4,
+ .func = 3,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 12) | BIT(16 + 13),
+ }, {
+ /* pdm-clkm1 */
+ .bank_num = 1,
+ .pin = 14,
+ .func = 4,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(12),
+ }, {
+ /* pdm-clkm2 */
+ .bank_num = 2,
+ .pin = 6,
+ .func = 2,
+ .route_offset = 0x308,
+ .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(13),
+ }, {
+ /* pdm-clkm-m2 */
+ .bank_num = 2,
+ .pin = 4,
+ .func = 3,
+ .route_offset = 0x600,
+ .route_val = BIT(16 + 2) | BIT(2),
+ }, {
+ /* spi1_miso */
+ .bank_num = 3,
+ .pin = 10,
+ .func = 3,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 9),
+ }, {
+ /* spi1_miso_m1 */
+ .bank_num = 2,
+ .pin = 4,
+ .func = 2,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 9) | BIT(9),
+ }, {
+ /* owire_m0 */
+ .bank_num = 0,
+ .pin = 11,
+ .func = 3,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 10) | BIT(16 + 11),
+ }, {
+ /* owire_m1 */
+ .bank_num = 1,
+ .pin = 22,
+ .func = 7,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
+ }, {
+ /* owire_m2 */
+ .bank_num = 2,
+ .pin = 2,
+ .func = 5,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
+ }, {
+ /* can_rxd_m0 */
+ .bank_num = 0,
+ .pin = 11,
+ .func = 2,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 12) | BIT(16 + 13),
+ }, {
+ /* can_rxd_m1 */
+ .bank_num = 1,
+ .pin = 22,
+ .func = 5,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(12),
+ }, {
+ /* can_rxd_m2 */
+ .bank_num = 2,
+ .pin = 2,
+ .func = 4,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(13),
+ }, {
+ /* mac_rxd0_m0 */
+ .bank_num = 1,
+ .pin = 20,
+ .func = 3,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 14),
+ }, {
+ /* mac_rxd0_m1 */
+ .bank_num = 4,
+ .pin = 2,
+ .func = 2,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 14) | BIT(14),
+ }, {
+ /* uart3_rx */
+ .bank_num = 3,
+ .pin = 12,
+ .func = 4,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 15),
+ }, {
+ /* uart3_rx_m1 */
+ .bank_num = 0,
+ .pin = 17,
+ .func = 3,
+ .route_offset = 0x314,
+ .route_val = BIT(16 + 15) | BIT(15),
+ },
+};
+
+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 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_GRF_OFFSET;
+ *reg += bank->bank_num * RK3308_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3308_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3308_PULL_PINS_PER_REG);
+ *bit *= RK3308_PULL_BITS_PER_PIN;
+}
+
+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 * RK3308_DRV_BANK_STRIDE;
+ *reg += ((pin_num / RK3308_DRV_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3308_DRV_PINS_PER_REG);
+ *bit *= RK3308_DRV_BITS_PER_PIN;
+}
+
+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;
+}
+
+static struct rockchip_pin_bank rk3308_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT),
+ PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT,
+ IOMUX_WIDTH_2BIT),
+};
+
+static struct rockchip_pin_ctrl rk3308_pin_ctrl = {
+ .pin_banks = rk3308_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3308_pin_banks),
+ .label = "RK3308-GPIO",
+ .type = RK3308,
+ .grf_mux_offset = 0x0,
+ .iomux_recalced = rk3308_mux_recalced_data,
+ .niomux_recalced = ARRAY_SIZE(rk3308_mux_recalced_data),
+ .iomux_routes = rk3308_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3308_mux_route_data),
+ .pull_calc_reg = rk3308_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3308_calc_drv_reg_and_bit,
+ .schmitt_calc_reg = rk3308_calc_schmitt_reg_and_bit,
+};
+
+static const struct of_device_id rk3308_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3308-pinctrl" },
+ {},
+};
+
+static int rk3308_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3308_pin_ctrl);
+}
+
+static struct platform_driver rk3308_pinctrl_driver = {
+ .probe = rk3308_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3308-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3308_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3308_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3308_pinctrl_driver);
+}
+postcore_initcall(rk3308_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3328.c b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
new file mode 100644
index 000000000000..670a3bccdcfd
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3328_PULL_GRF_OFFSET 0x100
+#define RK3328_PULL_BITS_PER_PIN 2
+#define RK3328_PULL_PINS_PER_REG 8
+#define RK3328_PULL_BANK_STRIDE 16
+
+#define RK3328_DRV_GRF_OFFSET 0x200
+#define RK3328_DRV_BITS_PER_PIN 2
+#define RK3328_DRV_PINS_PER_REG 8
+#define RK3328_DRV_BANK_STRIDE 16
+
+#define RK3328_SCHMITT_GRF_OFFSET 0x380
+#define RK3328_SCHMITT_BITS_PER_PIN 1
+#define RK3328_SCHMITT_PINS_PER_REG 16
+#define RK3328_SCHMITT_BANK_STRIDE 8
+
+static struct rockchip_mux_route_data rk3328_mux_route_data[] = {
+ {
+ /* uart2dbg_rxm0 */
+ .bank_num = 1,
+ .pin = 1,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16) | BIT(16 + 1),
+ }, {
+ /* uart2dbg_rxm1 */
+ .bank_num = 2,
+ .pin = 1,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16) | BIT(16 + 1) | BIT(0),
+ }, {
+ /* gmac-m1_rxd0 */
+ .bank_num = 1,
+ .pin = 11,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 2) | BIT(2),
+ }, {
+ /* gmac-m1-optimized_rxd3 */
+ .bank_num = 1,
+ .pin = 14,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 10) | BIT(10),
+ }, {
+ /* pdm_sdi0m0 */
+ .bank_num = 2,
+ .pin = 19,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 3),
+ }, {
+ /* pdm_sdi0m1 */
+ .bank_num = 1,
+ .pin = 23,
+ .func = 3,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 3) | BIT(3),
+ }, {
+ /* spi_rxdm2 */
+ .bank_num = 3,
+ .pin = 2,
+ .func = 4,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 4) | BIT(16 + 5) | BIT(5),
+ }, {
+ /* i2s2_sdim0 */
+ .bank_num = 1,
+ .pin = 24,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 6),
+ }, {
+ /* i2s2_sdim1 */
+ .bank_num = 3,
+ .pin = 2,
+ .func = 6,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 6) | BIT(6),
+ }, {
+ /* card_iom1 */
+ .bank_num = 2,
+ .pin = 22,
+ .func = 3,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 7) | BIT(7),
+ }, {
+ /* tsp_d5m1 */
+ .bank_num = 2,
+ .pin = 16,
+ .func = 3,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 8) | BIT(8),
+ }, {
+ /* cif_data5m1 */
+ .bank_num = 2,
+ .pin = 16,
+ .func = 4,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 9) | BIT(9),
+ },
+};
+
+static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
+ {
+ .num = 2,
+ .pin = 8,
+ .reg = 0x24,
+ .bit = 0,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 9,
+ .reg = 0x24,
+ .bit = 2,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 10,
+ .reg = 0x24,
+ .bit = 4,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 11,
+ .reg = 0x24,
+ .bit = 6,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 12,
+ .reg = 0x24,
+ .bit = 8,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 13,
+ .reg = 0x24,
+ .bit = 10,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 14,
+ .reg = 0x24,
+ .bit = 12,
+ .mask = 0x3
+ }, {
+ .num = 2,
+ .pin = 15,
+ .reg = 0x28,
+ .bit = 0,
+ .mask = 0x7
+ }, {
+ .num = 2,
+ .pin = 23,
+ .reg = 0x30,
+ .bit = 14,
+ .mask = 0x3
+ },
+};
+
+static void rk3328_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 = RK3328_PULL_GRF_OFFSET;
+ *reg += bank->bank_num * RK3328_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3328_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3328_PULL_PINS_PER_REG);
+ *bit *= RK3328_PULL_BITS_PER_PIN;
+}
+
+static void rk3328_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 = RK3328_DRV_GRF_OFFSET;
+ *reg += bank->bank_num * RK3328_DRV_BANK_STRIDE;
+ *reg += ((pin_num / RK3328_DRV_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3328_DRV_PINS_PER_REG);
+ *bit *= RK3328_DRV_BITS_PER_PIN;
+}
+
+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;
+}
+
+static struct rockchip_pin_bank rk3328_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
+ IOMUX_WIDTH_3BIT,
+ IOMUX_WIDTH_3BIT,
+ 0),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
+ IOMUX_WIDTH_3BIT,
+ IOMUX_WIDTH_3BIT,
+ 0,
+ 0),
+};
+
+static struct rockchip_pin_ctrl rk3328_pin_ctrl = {
+ .pin_banks = rk3328_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3328_pin_banks),
+ .label = "RK3328-GPIO",
+ .type = RK3288,
+ .grf_mux_offset = 0x0,
+ .iomux_recalced = rk3328_mux_recalced_data,
+ .niomux_recalced = ARRAY_SIZE(rk3328_mux_recalced_data),
+ .iomux_routes = rk3328_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3328_mux_route_data),
+ .pull_calc_reg = rk3328_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3328_calc_drv_reg_and_bit,
+ .schmitt_calc_reg = rk3328_calc_schmitt_reg_and_bit,
+};
+
+static const struct of_device_id rk3328_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3328-pinctrl" },
+ {},
+};
+
+static int rk3328_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3328_pin_ctrl);
+}
+
+static struct platform_driver rk3328_pinctrl_driver = {
+ .probe = rk3328_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3328-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3328_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3328_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3328_pinctrl_driver);
+}
+postcore_initcall(rk3328_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3368.c b/drivers/pinctrl/rockchip/pinctrl-rk3368.c
new file mode 100644
index 000000000000..cd76173fe9f4
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3368.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3368_PULL_GRF_OFFSET 0x100
+#define RK3368_PULL_PMU_OFFSET 0x10
+#define RK3368_PULL_BITS_PER_PIN 2
+#define RK3368_PULL_PINS_PER_REG 8
+#define RK3368_PULL_BANK_STRIDE 16
+
+#define RK3368_DRV_GRF_OFFSET 0x200
+#define RK3368_DRV_PMU_OFFSET 0x20
+#define RK3368_DRV_BITS_PER_PIN 2
+#define RK3368_DRV_PINS_PER_REG 8
+#define RK3368_DRV_BANK_STRIDE 16
+
+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 / RK3368_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3368_PULL_PINS_PER_REG;
+ *bit *= RK3368_PULL_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ *reg = RK3368_PULL_GRF_OFFSET;
+
+ /* correct the offset, as we're starting with the second bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3368_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3368_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3368_PULL_PINS_PER_REG);
+ *bit *= RK3368_PULL_BITS_PER_PIN;
+ }
+}
+
+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 / RK3368_DRV_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3368_DRV_PINS_PER_REG;
+ *bit *= RK3368_DRV_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ *reg = RK3368_DRV_GRF_OFFSET;
+
+ /* correct the offset, as we're starting with the second bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3368_DRV_BANK_STRIDE;
+ *reg += ((pin_num / RK3368_DRV_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3368_DRV_PINS_PER_REG);
+ *bit *= RK3368_DRV_BITS_PER_PIN;
+ }
+}
+
+static struct rockchip_pin_bank rk3368_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU
+ ),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3368_pin_ctrl = {
+ .pin_banks = rk3368_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3368_pin_banks),
+ .label = "RK3368-GPIO",
+ .type = RK3368,
+ .grf_mux_offset = 0x0,
+ .pmu_mux_offset = 0x0,
+ .pull_calc_reg = rk3368_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3368_calc_drv_reg_and_bit,
+};
+
+static const struct of_device_id rk3368_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3368-pinctrl" },
+ {},
+};
+
+static int rk3368_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3368_pin_ctrl);
+}
+
+static struct platform_driver rk3368_pinctrl_driver = {
+ .probe = rk3368_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3368-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3368_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3368_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3368_pinctrl_driver);
+}
+postcore_initcall(rk3368_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3399.c b/drivers/pinctrl/rockchip/pinctrl-rk3399.c
new file mode 100644
index 000000000000..55f8b6c82b0f
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3399.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#define RK3399_PULL_GRF_OFFSET 0xe040
+#define RK3399_PULL_PMU_OFFSET 0x40
+#define RK3399_PULL_BITS_PER_PIN 2
+#define RK3399_PULL_PINS_PER_REG 8
+#define RK3399_PULL_BANK_STRIDE 16
+
+static struct rockchip_mux_route_data rk3399_mux_route_data[] = {
+ {
+ /* uart2dbga_rx */
+ .bank_num = 4,
+ .pin = 8,
+ .func = 2,
+ .route_offset = 0xe21c,
+ .route_val = BIT(16 + 10) | BIT(16 + 11),
+ }, {
+ /* uart2dbgb_rx */
+ .bank_num = 4,
+ .pin = 16,
+ .func = 2,
+ .route_offset = 0xe21c,
+ .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
+ }, {
+ /* uart2dbgc_rx */
+ .bank_num = 4,
+ .pin = 19,
+ .func = 1,
+ .route_offset = 0xe21c,
+ .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
+ }, {
+ /* pcie_clkreqn */
+ .bank_num = 2,
+ .pin = 26,
+ .func = 2,
+ .route_offset = 0xe21c,
+ .route_val = BIT(16 + 14),
+ }, {
+ /* pcie_clkreqnb */
+ .bank_num = 4,
+ .pin = 24,
+ .func = 1,
+ .route_offset = 0xe21c,
+ .route_val = BIT(16 + 14) | BIT(14),
+ },
+};
+
+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 * RK3399_PULL_BANK_STRIDE;
+
+ *reg += ((pin_num / RK3399_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3399_PULL_PINS_PER_REG;
+ *bit *= RK3399_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 * RK3399_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3399_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3399_PULL_PINS_PER_REG);
+ *bit *= RK3399_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;
+}
+
+static struct rockchip_pin_bank rk3399_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(0, 32, "gpio0",
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ DRV_TYPE_IO_1V8_ONLY,
+ DRV_TYPE_IO_1V8_ONLY,
+ DRV_TYPE_IO_DEFAULT,
+ DRV_TYPE_IO_DEFAULT,
+ 0x80,
+ 0x88,
+ -1,
+ -1,
+ PULL_TYPE_IO_1V8_ONLY,
+ PULL_TYPE_IO_1V8_ONLY,
+ PULL_TYPE_IO_DEFAULT,
+ PULL_TYPE_IO_DEFAULT
+ ),
+ PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(1, 32, "gpio1", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ 0xa0,
+ 0xa8,
+ 0xb0,
+ 0xb8
+ ),
+ PIN_BANK_DRV_FLAGS_PULL_FLAGS(2, 32, "gpio2", DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_ONLY,
+ DRV_TYPE_IO_1V8_ONLY,
+ PULL_TYPE_IO_DEFAULT,
+ PULL_TYPE_IO_DEFAULT,
+ PULL_TYPE_IO_1V8_ONLY,
+ PULL_TYPE_IO_1V8_ONLY
+ ),
+ PIN_BANK_DRV_FLAGS(3, 32, "gpio3", DRV_TYPE_IO_3V3_ONLY,
+ DRV_TYPE_IO_3V3_ONLY,
+ DRV_TYPE_IO_3V3_ONLY,
+ DRV_TYPE_IO_1V8_OR_3V0
+ ),
+ PIN_BANK_DRV_FLAGS(4, 32, "gpio4", DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_3V0_AUTO,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_OR_3V0
+ ),
+};
+
+static struct rockchip_pin_ctrl rk3399_pin_ctrl = {
+ .pin_banks = rk3399_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3399_pin_banks),
+ .label = "RK3399-GPIO",
+ .type = RK3399,
+ .grf_mux_offset = 0xe000,
+ .pmu_mux_offset = 0x0,
+ .grf_drv_offset = 0xe100,
+ .pmu_drv_offset = 0x80,
+ .iomux_routes = rk3399_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3399_mux_route_data),
+ .pull_calc_reg = rk3399_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3399_calc_drv_reg_and_bit,
+};
+
+static const struct of_device_id rk3399_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk3399-pinctrl" },
+ {},
+};
+
+static int rk3399_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rk3399_pin_ctrl);
+}
+
+static struct platform_driver rk3399_pinctrl_driver = {
+ .probe = rk3399_pinctrl_probe,
+ .remove = rockchip_pinctrl_remove,
+ .driver = {
+ .name = "rk3399-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rk3399_pinctrl_dt_match,
+ },
+};
+
+static int __init rk3399_pinctrl_init(void)
+{
+ return platform_driver_register(&rk3399_pinctrl_driver);
+}
+postcore_initcall(rk3399_pinctrl_init);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip.c b/drivers/pinctrl/rockchip/pinctrl-rockchip.c
new file mode 100644
index 000000000000..8d9d7e86e4a2
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rockchip.c
@@ -0,0 +1,2126 @@
+// 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
+ * http://www.linaro.org
+ *
+ * and pinctrl-at91:
+ * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/bitops.h>
+#include <linux/gpio.h>
+#include <linux/of_address.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"
+
+/* GPIO control registers */
+#define GPIO_SWPORT_DR 0x00
+#define GPIO_SWPORT_DDR 0x04
+#define GPIO_INTEN 0x30
+#define GPIO_INTMASK 0x34
+#define GPIO_INTTYPE_LEVEL 0x38
+#define GPIO_INT_POLARITY 0x3c
+#define GPIO_INT_STATUS 0x40
+#define GPIO_INT_RAWSTATUS 0x44
+#define GPIO_DEBOUNCE 0x48
+#define GPIO_PORTS_EOI 0x4c
+#define GPIO_EXT_PORT 0x50
+#define GPIO_LS_SYNC 0x60
+
+#define RK3188_PULL_BITS_PER_PIN 2
+#define RK3288_DRV_BITS_PER_PIN 2
+#define RK3399_DRV_3BITS_PER_PIN 3
+
+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 = devm_kcalloc(pctldev->dev, 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) {
+ devm_kfree(pctldev->dev, 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)
+{
+}
+
+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,
+};
+
+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 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;
+}
+
+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);
+
+ 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;
+ }
+
+ /* 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:
+ 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;
+ }
+ }
+
+ 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;
+}
+
+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;
+ 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 */
+ data = BIT(bit + 16) | (enable << bit);
+ rmask = BIT(bit + 16) | BIT(bit);
+
+ 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 int rockchip_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+ struct rockchip_pin_bank *bank = gpiochip_get_data(chip);
+ u32 data;
+ int ret;
+
+ ret = clk_enable(bank->clk);
+ if (ret < 0) {
+ dev_err(bank->drvdata->dev,
+ "failed to enable clock for bank %s\n", bank->name);
+ return ret;
+ }
+ data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
+ clk_disable(bank->clk);
+
+ return !(data & BIT(offset));
+}
+
+/*
+ * The calls to gpio_direction_output() and gpio_direction_input()
+ * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
+ * function called from the gpiolib interface).
+ */
+static int _rockchip_pmx_gpio_set_direction(struct gpio_chip *chip,
+ int pin, bool input)
+{
+ struct rockchip_pin_bank *bank;
+ int ret;
+ unsigned long flags;
+ u32 data;
+
+ bank = gpiochip_get_data(chip);
+
+ ret = rockchip_set_mux(bank, pin, RK_FUNC_GPIO);
+ if (ret < 0)
+ return ret;
+
+ clk_enable(bank->clk);
+ raw_spin_lock_irqsave(&bank->slock, flags);
+
+ data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
+ /* set bit to 1 for output, 0 for input */
+ if (!input)
+ data |= BIT(pin);
+ else
+ data &= ~BIT(pin);
+ writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
+
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+ clk_disable(bank->clk);
+
+ return 0;
+}
+
+static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset, bool input)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ struct gpio_chip *chip;
+ int pin;
+
+ chip = range->gc;
+ pin = offset - chip->base;
+ dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n",
+ offset, range->name, pin, input ? "input" : "output");
+
+ return _rockchip_pmx_gpio_set_direction(chip, offset - chip->base,
+ input);
+}
+
+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,
+ .gpio_set_direction = rockchip_pmx_gpio_set_direction,
+};
+
+/*
+ * 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:
+ return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
+ }
+
+ return false;
+}
+
+static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value);
+static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset);
+
+/* 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);
+ 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:
+ rockchip_gpio_set(&bank->gpio_chip,
+ pin - bank->pin_base, arg);
+ rc = _rockchip_pmx_gpio_set_direction(&bank->gpio_chip,
+ pin - bank->pin_base, false);
+ 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);
+ 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 = rockchip_gpio_get(&bank->gpio_chip, 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),
+ GFP_KERNEL);
+ if (!info->functions)
+ return -EINVAL;
+
+ info->groups = devm_kcalloc(dev,
+ info->ngroups,
+ sizeof(struct rockchip_pin_group),
+ GFP_KERNEL);
+ if (!info->groups)
+ return -EINVAL;
+
+ i = 0;
+
+ for_each_child_of_node(np, child) {
+ if (of_match_node(rockchip_bank_match, child))
+ continue;
+
+ ret = rockchip_pinctrl_parse_functions(child, info, i++);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse function\n");
+ of_node_put(child);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int rockchip_pinctrl_register(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct pinctrl_desc *ctrldesc = &info->pctl;
+ struct pinctrl_pin_desc *pindesc, *pdesc;
+ struct rockchip_pin_bank *pin_bank;
+ int pin, bank, ret;
+ int k;
+
+ ctrldesc->name = "rockchip-pinctrl";
+ ctrldesc->owner = THIS_MODULE;
+ ctrldesc->pctlops = &rockchip_pctrl_ops;
+ ctrldesc->pmxops = &rockchip_pmx_ops;
+ ctrldesc->confops = &rockchip_pinconf_ops;
+
+ pindesc = devm_kcalloc(&pdev->dev,
+ info->ctrl->nr_pins, sizeof(*pindesc),
+ GFP_KERNEL);
+ if (!pindesc)
+ return -ENOMEM;
+
+ ctrldesc->pins = pindesc;
+ ctrldesc->npins = info->ctrl->nr_pins;
+
+ pdesc = pindesc;
+ for (bank = 0 , k = 0; bank < info->ctrl->nr_banks; bank++) {
+ pin_bank = &info->ctrl->pin_banks[bank];
+ for (pin = 0; pin < pin_bank->nr_pins; pin++, k++) {
+ pdesc->number = k;
+ pdesc->name = kasprintf(GFP_KERNEL, "%s-%d",
+ pin_bank->name, pin);
+ pdesc++;
+ }
+ }
+
+ ret = rockchip_pinctrl_parse_dt(pdev, info);
+ if (ret)
+ return ret;
+
+ info->pctl_dev = devm_pinctrl_register(&pdev->dev, ctrldesc, info);
+ if (IS_ERR(info->pctl_dev)) {
+ dev_err(&pdev->dev, "could not register pinctrl driver\n");
+ return PTR_ERR(info->pctl_dev);
+ }
+
+ for (bank = 0; bank < info->ctrl->nr_banks; ++bank) {
+ pin_bank = &info->ctrl->pin_banks[bank];
+ pin_bank->grange.name = pin_bank->name;
+ pin_bank->grange.id = bank;
+ pin_bank->grange.pin_base = pin_bank->pin_base;
+ pin_bank->grange.base = pin_bank->gpio_chip.base;
+ pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
+ pin_bank->grange.gc = &pin_bank->gpio_chip;
+ pinctrl_add_gpio_range(info->pctl_dev, &pin_bank->grange);
+ }
+
+ return 0;
+}
+
+/*
+ * GPIO handling
+ */
+
+static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
+ void __iomem *reg = bank->reg_base + GPIO_SWPORT_DR;
+ unsigned long flags;
+ u32 data;
+
+ clk_enable(bank->clk);
+ raw_spin_lock_irqsave(&bank->slock, flags);
+
+ data = readl(reg);
+ data &= ~BIT(offset);
+ if (value)
+ data |= BIT(offset);
+ writel(data, reg);
+
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+ clk_disable(bank->clk);
+}
+
+/*
+ * Returns the level of the pin for input direction and setting of the DR
+ * register for output gpios.
+ */
+static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
+ u32 data;
+
+ clk_enable(bank->clk);
+ data = readl(bank->reg_base + GPIO_EXT_PORT);
+ clk_disable(bank->clk);
+ data >>= offset;
+ data &= 1;
+ return data;
+}
+
+/*
+ * gpiolib gpio_direction_input callback function. The setting of the pin
+ * mux function as 'gpio input' will be handled by the pinctrl subsystem
+ * interface.
+ */
+static int rockchip_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ return pinctrl_gpio_direction_input(gc->base + offset);
+}
+
+/*
+ * gpiolib gpio_direction_output callback function. The setting of the pin
+ * mux function as 'gpio output' will be handled by the pinctrl subsystem
+ * interface.
+ */
+static int rockchip_gpio_direction_output(struct gpio_chip *gc,
+ unsigned offset, int value)
+{
+ rockchip_gpio_set(gc, offset, value);
+ return pinctrl_gpio_direction_output(gc->base + offset);
+}
+
+static void rockchip_gpio_set_debounce(struct gpio_chip *gc,
+ unsigned int offset, bool enable)
+{
+ struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
+ void __iomem *reg = bank->reg_base + GPIO_DEBOUNCE;
+ unsigned long flags;
+ u32 data;
+
+ clk_enable(bank->clk);
+ raw_spin_lock_irqsave(&bank->slock, flags);
+
+ data = readl(reg);
+ if (enable)
+ data |= BIT(offset);
+ else
+ data &= ~BIT(offset);
+ writel(data, reg);
+
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+ clk_disable(bank->clk);
+}
+
+/*
+ * gpiolib set_config callback function. The setting of the pin
+ * mux function as 'gpio output' will be handled by the pinctrl subsystem
+ * interface.
+ */
+static int rockchip_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
+ unsigned long config)
+{
+ enum pin_config_param param = pinconf_to_config_param(config);
+
+ switch (param) {
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ rockchip_gpio_set_debounce(gc, offset, true);
+ /*
+ * Rockchip's gpio could only support up to one period
+ * of the debounce clock(pclk), which is far away from
+ * satisftying the requirement, as pclk is usually near
+ * 100MHz shared by all peripherals. So the fact is it
+ * has crippled debounce capability could only be useful
+ * to prevent any spurious glitches from waking up the system
+ * if the gpio is conguired as wakeup interrupt source. Let's
+ * still return -ENOTSUPP as before, to make sure the caller
+ * of gpiod_set_debounce won't change its behaviour.
+ */
+ return -ENOTSUPP;
+ default:
+ return -ENOTSUPP;
+ }
+}
+
+/*
+ * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
+ * and a virtual IRQ, if not already present.
+ */
+static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
+ unsigned int virq;
+
+ if (!bank->domain)
+ return -ENXIO;
+
+ virq = irq_create_mapping(bank->domain, offset);
+
+ return (virq) ? : -ENXIO;
+}
+
+static const struct gpio_chip rockchip_gpiolib_chip = {
+ .request = gpiochip_generic_request,
+ .free = gpiochip_generic_free,
+ .set = rockchip_gpio_set,
+ .get = rockchip_gpio_get,
+ .get_direction = rockchip_gpio_get_direction,
+ .direction_input = rockchip_gpio_direction_input,
+ .direction_output = rockchip_gpio_direction_output,
+ .set_config = rockchip_gpio_set_config,
+ .to_irq = rockchip_gpio_to_irq,
+ .owner = THIS_MODULE,
+};
+
+/*
+ * Interrupt handling
+ */
+
+static void rockchip_irq_demux(struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct rockchip_pin_bank *bank = irq_desc_get_handler_data(desc);
+ u32 pend;
+
+ dev_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name);
+
+ chained_irq_enter(chip, desc);
+
+ pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS);
+
+ while (pend) {
+ unsigned int irq, virq;
+
+ irq = __ffs(pend);
+ pend &= ~BIT(irq);
+ virq = irq_linear_revmap(bank->domain, irq);
+
+ if (!virq) {
+ dev_err(bank->drvdata->dev, "unmapped irq %d\n", irq);
+ continue;
+ }
+
+ dev_dbg(bank->drvdata->dev, "handling irq %d\n", irq);
+
+ /*
+ * Triggering IRQ on both rising and falling edge
+ * needs manual intervention.
+ */
+ if (bank->toggle_edge_mode & BIT(irq)) {
+ u32 data, data_old, polarity;
+ unsigned long flags;
+
+ data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT);
+ do {
+ raw_spin_lock_irqsave(&bank->slock, flags);
+
+ polarity = readl_relaxed(bank->reg_base +
+ GPIO_INT_POLARITY);
+ if (data & BIT(irq))
+ polarity &= ~BIT(irq);
+ else
+ polarity |= BIT(irq);
+ writel(polarity,
+ bank->reg_base + GPIO_INT_POLARITY);
+
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+
+ data_old = data;
+ data = readl_relaxed(bank->reg_base +
+ GPIO_EXT_PORT);
+ } while ((data & BIT(irq)) != (data_old & BIT(irq)));
+ }
+
+ generic_handle_irq(virq);
+ }
+
+ chained_irq_exit(chip, desc);
+}
+
+static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct rockchip_pin_bank *bank = gc->private;
+ u32 mask = BIT(d->hwirq);
+ u32 polarity;
+ u32 level;
+ u32 data;
+ unsigned long flags;
+ int ret;
+
+ /* make sure the pin is configured as gpio input */
+ ret = rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
+ if (ret < 0)
+ return ret;
+
+ clk_enable(bank->clk);
+ raw_spin_lock_irqsave(&bank->slock, flags);
+
+ data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
+ data &= ~mask;
+ writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
+
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(d, handle_edge_irq);
+ else
+ irq_set_handler_locked(d, handle_level_irq);
+
+ raw_spin_lock_irqsave(&bank->slock, flags);
+ irq_gc_lock(gc);
+
+ level = readl_relaxed(gc->reg_base + GPIO_INTTYPE_LEVEL);
+ polarity = readl_relaxed(gc->reg_base + GPIO_INT_POLARITY);
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_BOTH:
+ bank->toggle_edge_mode |= mask;
+ level |= mask;
+
+ /*
+ * Determine gpio state. If 1 next interrupt should be falling
+ * otherwise rising.
+ */
+ data = readl(bank->reg_base + GPIO_EXT_PORT);
+ if (data & mask)
+ polarity &= ~mask;
+ else
+ polarity |= mask;
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ bank->toggle_edge_mode &= ~mask;
+ level |= mask;
+ polarity |= mask;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ bank->toggle_edge_mode &= ~mask;
+ level |= mask;
+ polarity &= ~mask;
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ bank->toggle_edge_mode &= ~mask;
+ level &= ~mask;
+ polarity |= mask;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ bank->toggle_edge_mode &= ~mask;
+ level &= ~mask;
+ polarity &= ~mask;
+ break;
+ default:
+ irq_gc_unlock(gc);
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+ clk_disable(bank->clk);
+ return -EINVAL;
+ }
+
+ writel_relaxed(level, gc->reg_base + GPIO_INTTYPE_LEVEL);
+ writel_relaxed(polarity, gc->reg_base + GPIO_INT_POLARITY);
+
+ irq_gc_unlock(gc);
+ raw_spin_unlock_irqrestore(&bank->slock, flags);
+ clk_disable(bank->clk);
+
+ return 0;
+}
+
+static void rockchip_irq_suspend(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct rockchip_pin_bank *bank = gc->private;
+
+ clk_enable(bank->clk);
+ bank->saved_masks = irq_reg_readl(gc, GPIO_INTMASK);
+ irq_reg_writel(gc, ~gc->wake_active, GPIO_INTMASK);
+ clk_disable(bank->clk);
+}
+
+static void rockchip_irq_resume(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct rockchip_pin_bank *bank = gc->private;
+
+ clk_enable(bank->clk);
+ irq_reg_writel(gc, bank->saved_masks, GPIO_INTMASK);
+ clk_disable(bank->clk);
+}
+
+static void rockchip_irq_enable(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct rockchip_pin_bank *bank = gc->private;
+
+ clk_enable(bank->clk);
+ irq_gc_mask_clr_bit(d);
+}
+
+static void rockchip_irq_disable(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct rockchip_pin_bank *bank = gc->private;
+
+ irq_gc_mask_set_bit(d);
+ clk_disable(bank->clk);
+}
+
+static int rockchip_interrupts_register(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
+ struct irq_chip_generic *gc;
+ int ret;
+ int i, j;
+
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!bank->valid) {
+ dev_warn(&pdev->dev, "bank %s is not valid\n",
+ bank->name);
+ continue;
+ }
+
+ ret = clk_enable(bank->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to enable clock for bank %s\n",
+ bank->name);
+ continue;
+ }
+
+ bank->domain = irq_domain_add_linear(bank->of_node, 32,
+ &irq_generic_chip_ops, NULL);
+ if (!bank->domain) {
+ dev_warn(&pdev->dev, "could not initialize irq domain for bank %s\n",
+ bank->name);
+ clk_disable(bank->clk);
+ continue;
+ }
+
+ ret = irq_alloc_domain_generic_chips(bank->domain, 32, 1,
+ "rockchip_gpio_irq", handle_level_irq,
+ clr, 0, IRQ_GC_INIT_MASK_CACHE);
+ if (ret) {
+ dev_err(&pdev->dev, "could not alloc generic chips for bank %s\n",
+ bank->name);
+ irq_domain_remove(bank->domain);
+ clk_disable(bank->clk);
+ continue;
+ }
+
+ /*
+ * Linux assumes that all interrupts start out disabled/masked.
+ * Our driver only uses the concept of masked and always keeps
+ * things enabled, so for us that's all masked and all enabled.
+ */
+ writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTMASK);
+ writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTEN);
+
+ gc = irq_get_domain_generic_chip(bank->domain, 0);
+ gc->reg_base = bank->reg_base;
+ gc->private = bank;
+ gc->chip_types[0].regs.mask = GPIO_INTMASK;
+ gc->chip_types[0].regs.ack = GPIO_PORTS_EOI;
+ gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
+ gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
+ gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit;
+ gc->chip_types[0].chip.irq_enable = rockchip_irq_enable;
+ gc->chip_types[0].chip.irq_disable = rockchip_irq_disable;
+ gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake;
+ gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
+ gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
+ gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
+ gc->wake_enabled = IRQ_MSK(bank->nr_pins);
+
+ irq_set_chained_handler_and_data(bank->irq,
+ rockchip_irq_demux, bank);
+
+ /* map the gpio irqs here, when the clock is still running */
+ for (j = 0 ; j < 32 ; j++)
+ irq_create_mapping(bank->domain, j);
+
+ clk_disable(bank->clk);
+ }
+
+ return 0;
+}
+
+static int rockchip_gpiolib_register(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ struct gpio_chip *gc;
+ int ret;
+ int i;
+
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!bank->valid) {
+ dev_warn(&pdev->dev, "bank %s is not valid\n",
+ bank->name);
+ continue;
+ }
+
+ bank->gpio_chip = rockchip_gpiolib_chip;
+
+ gc = &bank->gpio_chip;
+ gc->base = bank->pin_base;
+ gc->ngpio = bank->nr_pins;
+ gc->parent = &pdev->dev;
+ gc->of_node = bank->of_node;
+ gc->label = bank->name;
+
+ ret = gpiochip_add_data(gc, bank);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
+ gc->label, ret);
+ goto fail;
+ }
+ }
+
+ rockchip_interrupts_register(pdev, info);
+
+ return 0;
+
+fail:
+ for (--i, --bank; i >= 0; --i, --bank) {
+ if (!bank->valid)
+ continue;
+ gpiochip_remove(&bank->gpio_chip);
+ }
+ return ret;
+}
+
+static int rockchip_gpiolib_unregister(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ int i;
+
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!bank->valid)
+ continue;
+ gpiochip_remove(&bank->gpio_chip);
+ }
+
+ return 0;
+}
+
+static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
+ struct rockchip_pinctrl *info)
+{
+ struct resource res;
+ void __iomem *base;
+
+ if (of_address_to_resource(bank->of_node, 0, &res)) {
+ dev_err(info->dev, "cannot find IO resource for bank\n");
+ return -ENOENT;
+ }
+
+ bank->reg_base = devm_ioremap_resource(info->dev, &res);
+ if (IS_ERR(bank->reg_base))
+ return PTR_ERR(bank->reg_base);
+
+ /*
+ * special case, where parts of the pull setting-registers are
+ * part of the PMU register space
+ */
+ if (of_device_is_compatible(bank->of_node,
+ "rockchip,rk3188-gpio-bank0")) {
+ struct device_node *node;
+
+ node = of_parse_phandle(bank->of_node->parent,
+ "rockchip,pmu", 0);
+ if (!node) {
+ if (of_address_to_resource(bank->of_node, 1, &res)) {
+ dev_err(info->dev, "cannot find IO resource for bank\n");
+ return -ENOENT;
+ }
+
+ base = devm_ioremap_resource(info->dev, &res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+ rockchip_regmap_config.max_register =
+ resource_size(&res) - 4;
+ rockchip_regmap_config.name =
+ "rockchip,rk3188-gpio-bank0-pull";
+ bank->regmap_pull = devm_regmap_init_mmio(info->dev,
+ base,
+ &rockchip_regmap_config);
+ }
+ of_node_put(node);
+ }
+
+ bank->irq = irq_of_parse_and_map(bank->of_node, 0);
+
+ bank->clk = of_clk_get(bank->of_node, 0);
+ if (IS_ERR(bank->clk))
+ return PTR_ERR(bank->clk);
+
+ return clk_prepare(bank->clk);
+}
+
+/* retrieve the soc specific data */
+static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
+ struct rockchip_pinctrl *d,
+ struct platform_device *pdev,
+ struct rockchip_pin_ctrl *ctrl)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *np;
+ struct rockchip_pin_bank *bank;
+ int grf_offs, pmu_offs, drv_grf_offs, drv_pmu_offs, i, j;
+
+ for_each_child_of_node(node, np) {
+ if (!of_find_property(np, "gpio-controller", NULL))
+ continue;
+
+ bank = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!strcmp(bank->name, np->name)) {
+ bank->of_node = np;
+
+ if (!rockchip_get_bank_data(bank, d))
+ bank->valid = true;
+
+ break;
+ }
+ }
+ }
+
+ grf_offs = ctrl->grf_mux_offset;
+ pmu_offs = ctrl->pmu_mux_offset;
+ drv_pmu_offs = ctrl->pmu_drv_offset;
+ drv_grf_offs = ctrl->grf_drv_offset;
+ bank = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ int bank_pins = 0;
+
+ raw_spin_lock_init(&bank->slock);
+ bank->drvdata = d;
+ bank->pin_base = ctrl->nr_pins;
+ ctrl->nr_pins += bank->nr_pins;
+
+ /* calculate iomux and drv offsets */
+ for (j = 0; j < 4; j++) {
+ struct rockchip_iomux *iom = &bank->iomux[j];
+ struct rockchip_drv *drv = &bank->drv[j];
+ int inc;
+
+ if (bank_pins >= bank->nr_pins)
+ break;
+
+ /* preset iomux offset value, set new start value */
+ if (iom->offset >= 0) {
+ if (iom->type & IOMUX_SOURCE_PMU)
+ pmu_offs = iom->offset;
+ else
+ grf_offs = iom->offset;
+ } else { /* set current iomux offset */
+ iom->offset = (iom->type & IOMUX_SOURCE_PMU) ?
+ pmu_offs : grf_offs;
+ }
+
+ /* preset drv offset value, set new start value */
+ if (drv->offset >= 0) {
+ if (iom->type & IOMUX_SOURCE_PMU)
+ drv_pmu_offs = drv->offset;
+ else
+ drv_grf_offs = drv->offset;
+ } else { /* set current drv offset */
+ drv->offset = (iom->type & IOMUX_SOURCE_PMU) ?
+ drv_pmu_offs : drv_grf_offs;
+ }
+
+ dev_dbg(d->dev, "bank %d, iomux %d has iom_offset 0x%x drv_offset 0x%x\n",
+ i, j, iom->offset, drv->offset);
+
+ /*
+ * Increase offset according to iomux width.
+ * 4bit iomux'es are spread over two registers.
+ */
+ inc = (iom->type & (IOMUX_WIDTH_4BIT |
+ IOMUX_WIDTH_3BIT |
+ IOMUX_WIDTH_2BIT)) ? 8 : 4;
+ if (iom->type & IOMUX_SOURCE_PMU)
+ pmu_offs += inc;
+ else
+ grf_offs += inc;
+
+ /*
+ * Increase offset according to drv width.
+ * 3bit drive-strenth'es are spread over two registers.
+ */
+ if ((drv->drv_type == DRV_TYPE_IO_1V8_3V0_AUTO) ||
+ (drv->drv_type == DRV_TYPE_IO_3V3_ONLY))
+ inc = 8;
+ else
+ inc = 4;
+
+ if (iom->type & IOMUX_SOURCE_PMU)
+ drv_pmu_offs += inc;
+ else
+ drv_grf_offs += inc;
+
+ bank_pins += 8;
+ }
+
+ /* calculate the per-bank recalced_mask */
+ for (j = 0; j < ctrl->niomux_recalced; j++) {
+ int pin = 0;
+
+ if (ctrl->iomux_recalced[j].num == bank->bank_num) {
+ pin = ctrl->iomux_recalced[j].pin;
+ bank->recalced_mask |= BIT(pin);
+ }
+ }
+
+ /* calculate the per-bank route_mask */
+ for (j = 0; j < ctrl->niomux_routes; j++) {
+ int pin = 0;
+
+ if (ctrl->iomux_routes[j].bank_num == bank->bank_num) {
+ pin = ctrl->iomux_routes[j].pin;
+ bank->route_mask |= BIT(pin);
+ }
+ }
+ }
+
+ return ctrl;
+}
+
+#define RK3288_GRF_GPIO6C_IOMUX 0x64
+#define GPIO6C6_SEL_WRITE_ENABLE BIT(28)
+
+static u32 rk3288_grf_gpio6c_iomux;
+
+static int rockchip_pinctrl_suspend(struct device *dev)
+{
+ struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+ int ret = pinctrl_force_sleep(info->pctl_dev);
+
+ if (ret)
+ return ret;
+
+ /*
+ * RK3288 GPIO6_C6 mux would be modified by Maskrom when resume, so save
+ * the setting here, and restore it at resume.
+ */
+ if (info->ctrl->type == RK3288) {
+ ret = regmap_read(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
+ &rk3288_grf_gpio6c_iomux);
+ if (ret) {
+ pinctrl_force_default(info->pctl_dev);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int rockchip_pinctrl_resume(struct device *dev)
+{
+ struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+ int ret = regmap_write(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
+ rk3288_grf_gpio6c_iomux |
+ GPIO6C6_SEL_WRITE_ENABLE);
+
+ if (ret)
+ return ret;
+
+ return pinctrl_force_default(info->pctl_dev);
+}
+
+SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
+ rockchip_pinctrl_resume);
+EXPORT_SYMBOL(rockchip_pinctrl_dev_pm_ops);
+
+int rockchip_pinctrl_probe(struct platform_device *pdev,
+ struct rockchip_pin_ctrl *pctrl)
+{
+ struct rockchip_pinctrl *info;
+ struct device *dev = &pdev->dev;
+ struct rockchip_pin_ctrl *ctrl;
+ struct device_node *np = pdev->dev.of_node, *node;
+ struct resource *res;
+ void __iomem *base;
+ int ret;
+
+ if (!dev->of_node) {
+ dev_err(dev, "device tree node not found\n");
+ return -ENODEV;
+ }
+
+ info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->dev = dev;
+
+ ctrl = rockchip_pinctrl_get_soc_data(info, pdev, pctrl);
+ if (!ctrl) {
+ dev_err(dev, "driver data not available\n");
+ return -EINVAL;
+ }
+ info->ctrl = ctrl;
+
+ node = of_parse_phandle(np, "rockchip,grf", 0);
+ if (node) {
+ info->regmap_base = syscon_node_to_regmap(node);
+ if (IS_ERR(info->regmap_base))
+ return PTR_ERR(info->regmap_base);
+ } else {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ rockchip_regmap_config.max_register = resource_size(res) - 4;
+ rockchip_regmap_config.name = "rockchip,pinctrl";
+ info->regmap_base = devm_regmap_init_mmio(&pdev->dev, base,
+ &rockchip_regmap_config);
+
+ /* to check for the old dt-bindings */
+ info->reg_size = resource_size(res);
+
+ /* Honor the old binding, with pull registers as 2nd resource */
+ if (ctrl->type == RK3188 && info->reg_size < 0x200) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ rockchip_regmap_config.max_register =
+ resource_size(res) - 4;
+ rockchip_regmap_config.name = "rockchip,pinctrl-pull";
+ info->regmap_pull = devm_regmap_init_mmio(&pdev->dev,
+ base,
+ &rockchip_regmap_config);
+ }
+ }
+
+ /* try to find the optional reference to the pmu syscon */
+ node = of_parse_phandle(np, "rockchip,pmu", 0);
+ if (node) {
+ info->regmap_pmu = syscon_node_to_regmap(node);
+ if (IS_ERR(info->regmap_pmu))
+ return PTR_ERR(info->regmap_pmu);
+ }
+
+ ret = rockchip_pinctrl_register(pdev, info);
+ if (ret)
+ return ret;
+
+ ret = rockchip_gpiolib_register(pdev, info);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(pdev, info);
+
+ return 0;
+}
+EXPORT_SYMBOL(rockchip_pinctrl_probe);
+
+int rockchip_pinctrl_remove(struct platform_device *pdev)
+{
+ struct rockchip_pinctrl *info = platform_get_drvdata(pdev);
+
+ rockchip_gpiolib_unregister(pdev, info);
+
+ return 0;
+}
+EXPORT_SYMBOL(rockchip_pinctrl_remove);
diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip.h b/drivers/pinctrl/rockchip/pinctrl-rockchip.h
new file mode 100644
index 000000000000..04025b66f896
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rockchip.h
@@ -0,0 +1,363 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __PINCTRL_ROCKCHIP_H__
+#define __PINCTRL_ROCKCHIP_H__
+
+enum rockchip_pinctrl_type {
+ PX30,
+ RV1108,
+ RK2928,
+ RK3066B,
+ RK3128,
+ RK3188,
+ RK3288,
+ RK3308,
+ RK3368,
+ RK3399,
+};
+
+/**
+ * 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)
+
+/**
+ * @type: iomux variant using IOMUX_* constants
+ * @offset: if initialized to -1 it will be autocalculated, by specifying
+ * an initial offset value the relevant source offset can be reset
+ * to a new value for autocalculating the following iomux registers.
+ */
+struct rockchip_iomux {
+ int type;
+ int offset;
+};
+
+/**
+ * enum type index corresponding to rockchip_perpin_drv_list arrays index.
+ */
+enum rockchip_pin_drv_type {
+ DRV_TYPE_IO_DEFAULT = 0,
+ DRV_TYPE_IO_1V8_OR_3V0,
+ DRV_TYPE_IO_1V8_ONLY,
+ DRV_TYPE_IO_1V8_3V0_AUTO,
+ DRV_TYPE_IO_3V3_ONLY,
+ DRV_TYPE_MAX
+};
+
+/**
+ * enum type index corresponding to rockchip_pull_list arrays index.
+ */
+enum rockchip_pin_pull_type {
+ PULL_TYPE_IO_DEFAULT = 0,
+ PULL_TYPE_IO_1V8_ONLY,
+ PULL_TYPE_MAX
+};
+
+/**
+ * @drv_type: drive strength variant using rockchip_perpin_drv_type
+ * @offset: if initialized to -1 it will be autocalculated, by specifying
+ * an initial offset value the relevant source offset can be reset
+ * to a new value for autocalculating the following drive strength
+ * registers. if used chips own cal_drv func instead to calculate
+ * registers offset, the variant could be ignored.
+ */
+struct rockchip_drv {
+ enum rockchip_pin_drv_type drv_type;
+ int offset;
+};
+
+/**
+ * @reg_base: register base of the gpio bank
+ * @reg_pull: optional separate register for additional pull settings
+ * @clk: clock of the gpio bank
+ * @irq: interrupt of the gpio bank
+ * @saved_masks: Saved content of GPIO_INTEN at suspend time.
+ * @pin_base: first pin number
+ * @nr_pins: number of pins in this bank
+ * @name: name of the bank
+ * @bank_num: number of the bank, to account for holes
+ * @iomux: array describing the 4 iomux sources of the bank
+ * @drv: array describing the 4 drive strength sources of the bank
+ * @pull_type: array describing the 4 pull type sources of the bank
+ * @valid: is all necessary information present
+ * @of_node: dt node of this bank
+ * @drvdata: common pinctrl basedata
+ * @domain: irqdomain of the gpio bank
+ * @gpio_chip: gpiolib chip
+ * @grange: gpio range
+ * @slock: spinlock for the gpio bank
+ * @route_mask: bits describing the routing pins of per bank
+ */
+struct rockchip_pin_bank {
+ void __iomem *reg_base;
+ struct regmap *regmap_pull;
+ struct clk *clk;
+ int irq;
+ u32 saved_masks;
+ u32 pin_base;
+ u8 nr_pins;
+ char *name;
+ u8 bank_num;
+ struct rockchip_iomux iomux[4];
+ struct rockchip_drv drv[4];
+ enum rockchip_pin_pull_type pull_type[4];
+ bool valid;
+ struct device_node *of_node;
+ struct rockchip_pinctrl *drvdata;
+ struct irq_domain *domain;
+ struct gpio_chip gpio_chip;
+ struct pinctrl_gpio_range grange;
+ raw_spinlock_t slock;
+ u32 toggle_edge_mode;
+ u32 recalced_mask;
+ u32 route_mask;
+};
+
+#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, \
+ }
+
+/**
+ * struct rockchip_mux_recalced_data: represent a pin iomux data.
+ * @num: bank number.
+ * @pin: pin number.
+ * @bit: index at register.
+ * @reg: register offset.
+ * @mask: mask bit
+ */
+struct rockchip_mux_recalced_data {
+ u8 num;
+ u8 pin;
+ u32 reg;
+ u8 bit;
+ u8 mask;
+};
+
+enum rockchip_mux_route_location {
+ ROCKCHIP_ROUTE_SAME = 0,
+ ROCKCHIP_ROUTE_PMU,
+ ROCKCHIP_ROUTE_GRF,
+};
+
+/**
+ * struct rockchip_mux_recalced_data: represent a pin iomux data.
+ * @bank_num: bank number.
+ * @pin: index at register or used to calc index.
+ * @func: the min pin.
+ * @route_offset: the max pin.
+ * @route_val: the register offset.
+ */
+struct rockchip_mux_route_data {
+ u8 bank_num;
+ u8 pin;
+ u8 func;
+ enum rockchip_mux_route_location route_location;
+ u32 route_offset;
+ u32 route_val;
+};
+
+/**
+ */
+struct rockchip_pin_ctrl {
+ struct rockchip_pin_bank *pin_banks;
+ u32 nr_banks;
+ u32 nr_pins;
+ char *label;
+ enum rockchip_pinctrl_type type;
+ int grf_mux_offset;
+ int pmu_mux_offset;
+ int grf_drv_offset;
+ int pmu_drv_offset;
+ struct rockchip_mux_recalced_data *iomux_recalced;
+ u32 niomux_recalced;
+ struct rockchip_mux_route_data *iomux_routes;
+ u32 niomux_routes;
+
+ void (*pull_calc_reg)(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit);
+ void (*drv_calc_reg)(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit);
+ int (*schmitt_calc_reg)(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit);
+};
+
+struct rockchip_pin_config {
+ unsigned int func;
+ unsigned long *configs;
+ unsigned int nconfigs;
+};
+
+/**
+ * struct rockchip_pin_group: represent group of pins of a pinmux function.
+ * @name: name of the pin group, used to lookup the group.
+ * @pins: the pins included in this group.
+ * @npins: number of pins included in this group.
+ * @func: the mux function number to be programmed when selected.
+ * @configs: the config values to be set for each pin
+ * @nconfigs: number of configs for each pin
+ */
+struct rockchip_pin_group {
+ const char *name;
+ unsigned int npins;
+ unsigned int *pins;
+ struct rockchip_pin_config *data;
+};
+
+/**
+ * struct rockchip_pmx_func: represent a pin function.
+ * @name: name of the pin function, used to lookup the function.
+ * @groups: one or more names of pin groups that provide this function.
+ * @num_groups: number of groups included in @groups.
+ */
+struct rockchip_pmx_func {
+ const char *name;
+ const char **groups;
+ u8 ngroups;
+};
+
+struct rockchip_pinctrl {
+ struct regmap *regmap_base;
+ int reg_size;
+ struct regmap *regmap_pull;
+ struct regmap *regmap_pmu;
+ struct device *dev;
+ struct rockchip_pin_ctrl *ctrl;
+ struct pinctrl_desc pctl;
+ struct pinctrl_dev *pctl_dev;
+ struct rockchip_pin_group *groups;
+ unsigned int ngroups;
+ struct rockchip_pmx_func *functions;
+ unsigned int nfunctions;
+};
+
+extern const struct dev_pm_ops rockchip_pinctrl_dev_pm_ops;
+
+int rockchip_pinctrl_probe(struct platform_device *pdev,
+ struct rockchip_pin_ctrl *pctrl);
+int rockchip_pinctrl_remove(struct platform_device *pdev);
+
+#endif
diff --git a/drivers/pinctrl/rockchip/pinctrl-rv1108.c b/drivers/pinctrl/rockchip/pinctrl-rv1108.c
new file mode 100644
index 000000000000..27584c93a9bb
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rv1108.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-rockchip.h"
+
+#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
+
+#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
+
+#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 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 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 secnod 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;
+}
+
+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 second 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;
+}
+
+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;
+}
+
+static struct rockchip_pin_bank rv1108_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, 0),
+};
+
+static struct rockchip_pin_ctrl rv1108_pin_ctrl = {
+ .pin_banks = rv1108_pin_banks,
+ .nr_banks = ARRAY_SIZE(rv1108_pin_banks),
+ .label = "RV1108-GPIO",
+ .type = RV1108,
+ .grf_mux_offset = 0x10,
+ .pmu_mux_offset = 0x0,
+ .iomux_recalced = rv1108_mux_recalced_data,
+ .niomux_recalced = ARRAY_SIZE(rv1108_mux_recalced_data),
+ .pull_calc_reg = rv1108_calc_pull_reg_and_bit,
+ .drv_calc_reg = rv1108_calc_drv_reg_and_bit,
+ .schmitt_calc_reg = rv1108_calc_schmitt_reg_and_bit,
+};
+
+static const struct of_device_id rv1108_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rv1108-pinctrl" },
+ {},
+};
+
+static int rv1108_pinctrl_probe(struct platform_device *pdev)
+{
+ return rockchip_pinctrl_probe(pdev, &rv1108_pin_ctrl);
+}
+
+static struct platform_driver rv1108_pinctrl_driver = {
+ .probe = rv1108_pinctrl_probe,
+ .driver = {
+ .name = "rv1108-pinctrl",
+ .pm = &rockchip_pinctrl_dev_pm_ops,
+ .of_match_table = rv1108_pinctrl_dt_match,
+ },
+};
+
+static int __init rv1108_pinctrl_init(void)
+{
+ return platform_driver_register(&rv1108_pinctrl_driver);
+}
+postcore_initcall(rv1108_pinctrl_init);
--
2.17.1