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Message-ID: <20240323085852.116756-4-knaerzche@gmail.com>
Date: Sat, 23 Mar 2024 09:58:50 +0100
From: Alex Bee <knaerzche@...il.com>
To: Lee Jones <lee@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Heiko Stuebner <heiko@...ech.de>,
Linus Walleij <linus.walleij@...aro.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>
Cc: Chris Zhong <zyw@...k-chips.com>,
Zhang Qing <zhangqing@...k-chips.com>,
devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org,
linux-kernel@...r.kernel.org,
linux-gpio@...r.kernel.org,
Alex Bee <knaerzche@...il.com>
Subject: [PATCH v2 3/5] pinctrl: rk805: Add rk816 pinctrl support
This adds support for RK816 to the exising rk805 pinctrl driver
It has a single pin which can be configured as input from a thermistor (for
instance in an attached battery) or as a gpio.
Signed-off-by: Alex Bee <knaerzche@...il.com>
---
changes since v1:
- rename pin-function names according to the updated binding
- added missing fun_reg for rk816_gpio_cfgs
drivers/pinctrl/pinctrl-rk805.c | 69 +++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-rk805.c b/drivers/pinctrl/pinctrl-rk805.c
index 56d916f2cee6..4f1a6d8fcda0 100644
--- a/drivers/pinctrl/pinctrl-rk805.c
+++ b/drivers/pinctrl/pinctrl-rk805.c
@@ -93,6 +93,11 @@ enum rk806_pinmux_option {
RK806_PINMUX_FUN5,
};
+enum rk816_pinmux_option {
+ RK816_PINMUX_THERMISTOR,
+ RK816_PINMUX_GPIO,
+};
+
enum {
RK805_GPIO0,
RK805_GPIO1,
@@ -104,6 +109,10 @@ enum {
RK806_GPIO_DVS3
};
+enum {
+ RK816_GPIO0,
+};
+
static const char *const rk805_gpio_groups[] = {
"gpio0",
"gpio1",
@@ -115,6 +124,10 @@ static const char *const rk806_gpio_groups[] = {
"gpio_pwrctrl3",
};
+static const char *const rk816_gpio_groups[] = {
+ "gpio0",
+};
+
/* RK805: 2 output only GPIOs */
static const struct pinctrl_pin_desc rk805_pins_desc[] = {
PINCTRL_PIN(RK805_GPIO0, "gpio0"),
@@ -128,6 +141,11 @@ static const struct pinctrl_pin_desc rk806_pins_desc[] = {
PINCTRL_PIN(RK806_GPIO_DVS3, "gpio_pwrctrl3"),
};
+/* RK816 */
+static const struct pinctrl_pin_desc rk816_pins_desc[] = {
+ PINCTRL_PIN(RK816_GPIO0, "gpio0"),
+};
+
static const struct rk805_pin_function rk805_pin_functions[] = {
{
.name = "gpio",
@@ -176,6 +194,21 @@ static const struct rk805_pin_function rk806_pin_functions[] = {
},
};
+static const struct rk805_pin_function rk816_pin_functions[] = {
+ {
+ .name = "pin_fun_gpio",
+ .groups = rk816_gpio_groups,
+ .ngroups = ARRAY_SIZE(rk816_gpio_groups),
+ .mux_option = RK816_PINMUX_GPIO,
+ },
+ {
+ .name = "pin_fun_thermistor",
+ .groups = rk816_gpio_groups,
+ .ngroups = ARRAY_SIZE(rk816_gpio_groups),
+ .mux_option = RK816_PINMUX_THERMISTOR,
+ },
+};
+
static const struct rk805_pin_group rk805_pin_groups[] = {
{
.name = "gpio0",
@@ -207,6 +240,14 @@ static const struct rk805_pin_group rk806_pin_groups[] = {
}
};
+static const struct rk805_pin_group rk816_pin_groups[] = {
+ {
+ .name = "gpio0",
+ .pins = { RK816_GPIO0 },
+ .npins = 1,
+ },
+};
+
#define RK805_GPIO0_VAL_MSK BIT(0)
#define RK805_GPIO1_VAL_MSK BIT(1)
@@ -255,6 +296,20 @@ static struct rk805_pin_config rk806_gpio_cfgs[] = {
}
};
+#define RK816_FUN_MASK BIT(2)
+#define RK816_VAL_MASK BIT(3)
+#define RK816_DIR_MASK BIT(4)
+
+static struct rk805_pin_config rk816_gpio_cfgs[] = {
+ {
+ .fun_reg = RK818_IO_POL_REG,
+ .fun_msk = RK816_FUN_MASK,
+ .reg = RK818_IO_POL_REG,
+ .val_msk = RK816_VAL_MASK,
+ .dir_msk = RK816_DIR_MASK,
+ },
+};
+
/* generic gpio chip */
static int rk805_gpio_get(struct gpio_chip *chip, unsigned int offset)
{
@@ -439,6 +494,8 @@ static int rk805_pinctrl_gpio_request_enable(struct pinctrl_dev *pctldev,
return _rk805_pinctrl_set_mux(pctldev, offset, RK805_PINMUX_GPIO);
case RK806_ID:
return _rk805_pinctrl_set_mux(pctldev, offset, RK806_PINMUX_FUN5);
+ case RK816_ID:
+ return _rk805_pinctrl_set_mux(pctldev, offset, RK816_PINMUX_GPIO);
}
return -ENOTSUPP;
@@ -588,6 +645,18 @@ static int rk805_pinctrl_probe(struct platform_device *pdev)
pci->pin_cfg = rk806_gpio_cfgs;
pci->gpio_chip.ngpio = ARRAY_SIZE(rk806_gpio_cfgs);
break;
+ case RK816_ID:
+ pci->pins = rk816_pins_desc;
+ pci->num_pins = ARRAY_SIZE(rk816_pins_desc);
+ pci->functions = rk816_pin_functions;
+ pci->num_functions = ARRAY_SIZE(rk816_pin_functions);
+ pci->groups = rk816_pin_groups;
+ pci->num_pin_groups = ARRAY_SIZE(rk816_pin_groups);
+ pci->pinctrl_desc.pins = rk816_pins_desc;
+ pci->pinctrl_desc.npins = ARRAY_SIZE(rk816_pins_desc);
+ pci->pin_cfg = rk816_gpio_cfgs;
+ pci->gpio_chip.ngpio = ARRAY_SIZE(rk816_gpio_cfgs);
+ break;
default:
dev_err(&pdev->dev, "unsupported RK805 ID %lu\n",
pci->rk808->variant);
--
2.43.2
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