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eternalwrt-mt798x/target/linux/rockchip/patches-6.12/032-22-v6.15-pinctrl-rockchip-Add-support-for-RK3528.patch
T
Tianling ShenandNick Hainke 86e3c31bcc rockchip: restore files for v6.12 
This is an automatically generated commit which aids following Kernel patch
history, as git will see the move and copy as a rename thus defeating the
purpose.

For the original discussion see:
https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
Link: https://github.com/openwrt/openwrt/pull/23139
Signed-off-by: Nick Hainke <vincent@systemli.org>
2026-05-09 00:29:35 +02:00

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From a5e4cde647851ed67f19a5cb54a99282f32aae99 Mon Sep 17 00:00:00 2001
From: Steven Liu <steven.liu@rock-chips.com>
Date: Fri, 28 Feb 2025 06:40:09 +0000
Subject: [PATCH] pinctrl: rockchip: Add support for RK3528
Add gpio and pinctrl support for the 5 GPIO banks on RK3528.
Signed-off-by: Steven Liu <steven.liu@rock-chips.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/20250228064024.3200000-4-jonas@kwiboo.se
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-rockchip.c | 160 ++++++++++++++++++++++++++++-
drivers/pinctrl/pinctrl-rockchip.h | 1 +
2 files changed, 160 insertions(+), 1 deletion(-)
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2003,6 +2003,115 @@ static int rk3399_calc_drv_reg_and_bit(s
return 0;
}
+#define RK3528_DRV_BITS_PER_PIN 8
+#define RK3528_DRV_PINS_PER_REG 2
+#define RK3528_DRV_GPIO0_OFFSET 0x100
+#define RK3528_DRV_GPIO1_OFFSET 0x20120
+#define RK3528_DRV_GPIO2_OFFSET 0x30160
+#define RK3528_DRV_GPIO3_OFFSET 0x20190
+#define RK3528_DRV_GPIO4_OFFSET 0x101C0
+
+static int rk3528_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;
+
+ if (bank->bank_num == 0)
+ *reg = RK3528_DRV_GPIO0_OFFSET;
+ else if (bank->bank_num == 1)
+ *reg = RK3528_DRV_GPIO1_OFFSET;
+ else if (bank->bank_num == 2)
+ *reg = RK3528_DRV_GPIO2_OFFSET;
+ else if (bank->bank_num == 3)
+ *reg = RK3528_DRV_GPIO3_OFFSET;
+ else if (bank->bank_num == 4)
+ *reg = RK3528_DRV_GPIO4_OFFSET;
+ else
+ dev_err(info->dev, "unsupported bank_num %d\n", bank->bank_num);
+
+ *reg += ((pin_num / RK3528_DRV_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3528_DRV_PINS_PER_REG;
+ *bit *= RK3528_DRV_BITS_PER_PIN;
+
+ return 0;
+}
+
+#define RK3528_PULL_BITS_PER_PIN 2
+#define RK3528_PULL_PINS_PER_REG 8
+#define RK3528_PULL_GPIO0_OFFSET 0x200
+#define RK3528_PULL_GPIO1_OFFSET 0x20210
+#define RK3528_PULL_GPIO2_OFFSET 0x30220
+#define RK3528_PULL_GPIO3_OFFSET 0x20230
+#define RK3528_PULL_GPIO4_OFFSET 0x10240
+
+static int rk3528_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;
+
+ if (bank->bank_num == 0)
+ *reg = RK3528_PULL_GPIO0_OFFSET;
+ else if (bank->bank_num == 1)
+ *reg = RK3528_PULL_GPIO1_OFFSET;
+ else if (bank->bank_num == 2)
+ *reg = RK3528_PULL_GPIO2_OFFSET;
+ else if (bank->bank_num == 3)
+ *reg = RK3528_PULL_GPIO3_OFFSET;
+ else if (bank->bank_num == 4)
+ *reg = RK3528_PULL_GPIO4_OFFSET;
+ else
+ dev_err(info->dev, "unsupported bank_num %d\n", bank->bank_num);
+
+ *reg += ((pin_num / RK3528_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3528_PULL_PINS_PER_REG;
+ *bit *= RK3528_PULL_BITS_PER_PIN;
+
+ return 0;
+}
+
+#define RK3528_SMT_BITS_PER_PIN 1
+#define RK3528_SMT_PINS_PER_REG 8
+#define RK3528_SMT_GPIO0_OFFSET 0x400
+#define RK3528_SMT_GPIO1_OFFSET 0x20410
+#define RK3528_SMT_GPIO2_OFFSET 0x30420
+#define RK3528_SMT_GPIO3_OFFSET 0x20430
+#define RK3528_SMT_GPIO4_OFFSET 0x10440
+
+static int rk3528_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;
+
+ if (bank->bank_num == 0)
+ *reg = RK3528_SMT_GPIO0_OFFSET;
+ else if (bank->bank_num == 1)
+ *reg = RK3528_SMT_GPIO1_OFFSET;
+ else if (bank->bank_num == 2)
+ *reg = RK3528_SMT_GPIO2_OFFSET;
+ else if (bank->bank_num == 3)
+ *reg = RK3528_SMT_GPIO3_OFFSET;
+ else if (bank->bank_num == 4)
+ *reg = RK3528_SMT_GPIO4_OFFSET;
+ else
+ dev_err(info->dev, "unsupported bank_num %d\n", bank->bank_num);
+
+ *reg += ((pin_num / RK3528_SMT_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3528_SMT_PINS_PER_REG;
+ *bit *= RK3528_SMT_BITS_PER_PIN;
+
+ return 0;
+}
+
#define RK3568_PULL_PMU_OFFSET 0x20
#define RK3568_PULL_GRF_OFFSET 0x80
#define RK3568_PULL_BITS_PER_PIN 2
@@ -2495,7 +2604,8 @@ static int rockchip_set_drive_perpin(str
rmask_bits = RK3588_DRV_BITS_PER_PIN;
ret = strength;
goto config;
- } else if (ctrl->type == RK3568) {
+ } else if (ctrl->type == RK3528 ||
+ ctrl->type == RK3568) {
rmask_bits = RK3568_DRV_BITS_PER_PIN;
ret = (1 << (strength + 1)) - 1;
goto config;
@@ -2639,6 +2749,7 @@ static int rockchip_get_pull(struct rock
case RK3328:
case RK3368:
case RK3399:
+ case RK3528:
case RK3568:
case RK3576:
case RK3588:
@@ -2699,6 +2810,7 @@ static int rockchip_set_pull(struct rock
case RK3328:
case RK3368:
case RK3399:
+ case RK3528:
case RK3568:
case RK3576:
case RK3588:
@@ -2964,6 +3076,7 @@ static bool rockchip_pinconf_pull_valid(
case RK3328:
case RK3368:
case RK3399:
+ case RK3528:
case RK3568:
case RK3576:
case RK3588:
@@ -4083,6 +4196,49 @@ static struct rockchip_pin_ctrl rk3399_p
.drv_calc_reg = rk3399_calc_drv_reg_and_bit,
};
+static struct rockchip_pin_bank rk3528_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS_OFFSET(0, 32, "gpio0",
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS_OFFSET(1, 32, "gpio1",
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0x20020, 0x20028, 0x20030, 0x20038),
+ PIN_BANK_IOMUX_FLAGS_OFFSET(2, 32, "gpio2",
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0x30040, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS_OFFSET(3, 32, "gpio3",
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0x20060, 0x20068, 0x20070, 0),
+ PIN_BANK_IOMUX_FLAGS_OFFSET(4, 32, "gpio4",
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0x10080, 0x10088, 0x10090, 0x10098),
+};
+
+static struct rockchip_pin_ctrl rk3528_pin_ctrl = {
+ .pin_banks = rk3528_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3528_pin_banks),
+ .label = "RK3528-GPIO",
+ .type = RK3528,
+ .pull_calc_reg = rk3528_calc_pull_reg_and_bit,
+ .drv_calc_reg = rk3528_calc_drv_reg_and_bit,
+ .schmitt_calc_reg = rk3528_calc_schmitt_reg_and_bit,
+};
+
static struct rockchip_pin_bank rk3568_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU | IOMUX_WIDTH_4BIT,
IOMUX_SOURCE_PMU | IOMUX_WIDTH_4BIT,
@@ -4207,6 +4363,8 @@ static const struct of_device_id rockchi
.data = &rk3368_pin_ctrl },
{ .compatible = "rockchip,rk3399-pinctrl",
.data = &rk3399_pin_ctrl },
+ { .compatible = "rockchip,rk3528-pinctrl",
+ .data = &rk3528_pin_ctrl },
{ .compatible = "rockchip,rk3568-pinctrl",
.data = &rk3568_pin_ctrl },
{ .compatible = "rockchip,rk3576-pinctrl",
--- a/drivers/pinctrl/pinctrl-rockchip.h
+++ b/drivers/pinctrl/pinctrl-rockchip.h
@@ -196,6 +196,7 @@ enum rockchip_pinctrl_type {
RK3328,
RK3368,
RK3399,
+ RK3528,
RK3568,
RK3576,
RK3588,
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