All of lore.kernel.org
 help / color / mirror / Atom feed
From: Caleb Connolly <kc@postmarketos.org>
To: Caleb Connolly <kc@postmarketos.org>,
	Rob Herring <robh+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-gpio@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht, martijn@brixit.nl,
	Arnaud Ferraris <arnaud.ferraris@collabora.com>
Subject: [PATCH 1/4] pinctrl/rockchip: support deferring other gpio params
Date: Mon, 28 Mar 2022 01:50:02 +0100	[thread overview]
Message-ID: <20220328005005.72492-2-kc@postmarketos.org> (raw)
In-Reply-To: <20220328005005.72492-1-kc@postmarketos.org>

Add support for deferring other params like PIN_CONFIG_INPUT_ENABLE.
This will be used to add support for PIN_CONFIG_INPUT_ENABLE to the
driver.

Fixes: e7165b1d ("pinctrl/rockchip: add a queue for deferred pin output settings on probe")
Fixes: 59dd178e ("gpio/rockchip: fetch deferred output settings on probe")
Signed-off-by: Caleb Connolly <kc@postmarketos.org>
---
 drivers/gpio/gpio-rockchip.c       | 24 ++++++++-----
 drivers/pinctrl/pinctrl-rockchip.c | 54 ++++++++++++++++--------------
 drivers/pinctrl/pinctrl-rockchip.h |  7 ++--
 3 files changed, 50 insertions(+), 35 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index 099e358d2491..bcf5214e3586 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -19,6 +19,7 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
+#include <linux/pinctrl/pinconf-generic.h>
 #include <linux/regmap.h>
 
 #include "../pinctrl/core.h"
@@ -706,7 +707,7 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 	struct device_node *pctlnp = of_get_parent(np);
 	struct pinctrl_dev *pctldev = NULL;
 	struct rockchip_pin_bank *bank = NULL;
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 	static int gpio;
 	int id, ret;
 
@@ -747,15 +748,22 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	while (!list_empty(&bank->deferred_output)) {
-		cfg = list_first_entry(&bank->deferred_output,
-				       struct rockchip_pin_output_deferred, head);
+	while (!list_empty(&bank->deferred_pins)) {
+		cfg = list_first_entry(&bank->deferred_pins,
+				       struct rockchip_pin_deferred, head);
 		list_del(&cfg->head);
 
-		ret = rockchip_gpio_direction_output(&bank->gpio_chip, cfg->pin, cfg->arg);
-		if (ret)
-			dev_warn(dev, "setting output pin %u to %u failed\n", cfg->pin, cfg->arg);
-
+		switch (cfg->param) {
+		case PIN_CONFIG_OUTPUT:
+			ret = rockchip_gpio_direction_output(&bank->gpio_chip, cfg->pin, cfg->arg);
+			if (ret)
+				dev_warn(dev, "setting output pin %u to %u failed\n", cfg->pin,
+					 cfg->arg);
+			break;
+		default:
+			dev_warn(dev, "unknown deferred config param %d\n", cfg->param);
+			break;
+		}
 		kfree(cfg);
 	}
 
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index d8dd8415fa81..d54fc1cdf609 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2095,19 +2095,20 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
 	return false;
 }
 
-static int rockchip_pinconf_defer_output(struct rockchip_pin_bank *bank,
-					 unsigned int pin, u32 arg)
+static int rockchip_pinconf_defer_pin(struct rockchip_pin_bank *bank,
+					 unsigned int pin, u32 param, u32 arg)
 {
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 
 	cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
 	if (!cfg)
 		return -ENOMEM;
 
 	cfg->pin = pin;
+	cfg->param = param;
 	cfg->arg = arg;
 
-	list_add_tail(&cfg->head, &bank->deferred_output);
+	list_add_tail(&cfg->head, &bank->deferred_pins);
 
 	return 0;
 }
@@ -2128,6 +2129,25 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 		param = pinconf_to_config_param(configs[i]);
 		arg = pinconf_to_config_argument(configs[i]);
 
+		if (param == (PIN_CONFIG_OUTPUT | PIN_CONFIG_INPUT_ENABLE)) {
+			/*
+			 * Check for gpio driver not being probed yet.
+			 * The lock makes sure that either gpio-probe has completed
+			 * or the gpio driver hasn't probed yet.
+			 */
+			mutex_lock(&bank->deferred_lock);
+			if (!gpio || !gpio->direction_output) {
+				rc = rockchip_pinconf_defer_pin(bank, pin - bank->pin_base, param,
+								arg);
+				mutex_unlock(&bank->deferred_lock);
+				if (rc)
+					return rc;
+
+				break;
+			}
+			mutex_unlock(&bank->deferred_lock);
+		}
+
 		switch (param) {
 		case PIN_CONFIG_BIAS_DISABLE:
 			rc =  rockchip_set_pull(bank, pin - bank->pin_base,
@@ -2156,22 +2176,6 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 			if (rc != RK_FUNC_GPIO)
 				return -EINVAL;
 
-			/*
-			 * Check for gpio driver not being probed yet.
-			 * The lock makes sure that either gpio-probe has completed
-			 * or the gpio driver hasn't probed yet.
-			 */
-			mutex_lock(&bank->deferred_lock);
-			if (!gpio || !gpio->direction_output) {
-				rc = rockchip_pinconf_defer_output(bank, pin - bank->pin_base, arg);
-				mutex_unlock(&bank->deferred_lock);
-				if (rc)
-					return rc;
-
-				break;
-			}
-			mutex_unlock(&bank->deferred_lock);
-
 			rc = gpio->direction_output(gpio, pin - bank->pin_base,
 						    arg);
 			if (rc)
@@ -2485,7 +2489,7 @@ static int rockchip_pinctrl_register(struct platform_device *pdev,
 			pdesc++;
 		}
 
-		INIT_LIST_HEAD(&pin_bank->deferred_output);
+		INIT_LIST_HEAD(&pin_bank->deferred_pins);
 		mutex_init(&pin_bank->deferred_lock);
 	}
 
@@ -2746,7 +2750,7 @@ static int rockchip_pinctrl_remove(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info = platform_get_drvdata(pdev);
 	struct rockchip_pin_bank *bank;
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 	int i;
 
 	of_platform_depopulate(&pdev->dev);
@@ -2755,9 +2759,9 @@ static int rockchip_pinctrl_remove(struct platform_device *pdev)
 		bank = &info->ctrl->pin_banks[i];
 
 		mutex_lock(&bank->deferred_lock);
-		while (!list_empty(&bank->deferred_output)) {
-			cfg = list_first_entry(&bank->deferred_output,
-					       struct rockchip_pin_output_deferred, head);
+		while (!list_empty(&bank->deferred_pins)) {
+			cfg = list_first_entry(&bank->deferred_pins,
+					       struct rockchip_pin_deferred, head);
 			list_del(&cfg->head);
 			kfree(cfg);
 		}
diff --git a/drivers/pinctrl/pinctrl-rockchip.h b/drivers/pinctrl/pinctrl-rockchip.h
index 91f10279d084..98a01a616da6 100644
--- a/drivers/pinctrl/pinctrl-rockchip.h
+++ b/drivers/pinctrl/pinctrl-rockchip.h
@@ -171,7 +171,7 @@ struct rockchip_pin_bank {
 	u32				toggle_edge_mode;
 	u32				recalced_mask;
 	u32				route_mask;
-	struct list_head		deferred_output;
+	struct list_head		deferred_pins;
 	struct mutex			deferred_lock;
 };
 
@@ -247,9 +247,12 @@ struct rockchip_pin_config {
 	unsigned int		nconfigs;
 };
 
-struct rockchip_pin_output_deferred {
+enum pin_config_param;
+
+struct rockchip_pin_deferred {
 	struct list_head head;
 	unsigned int pin;
+	enum pin_config_param param;
 	u32 arg;
 };
 
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Caleb Connolly <kc@postmarketos.org>
To: Caleb Connolly <kc@postmarketos.org>,
	Rob Herring <robh+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-gpio@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht, martijn@brixit.nl,
	Arnaud Ferraris <arnaud.ferraris@collabora.com>
Subject: [PATCH 1/4] pinctrl/rockchip: support deferring other gpio params
Date: Mon, 28 Mar 2022 01:50:02 +0100	[thread overview]
Message-ID: <20220328005005.72492-2-kc@postmarketos.org> (raw)
In-Reply-To: <20220328005005.72492-1-kc@postmarketos.org>

Add support for deferring other params like PIN_CONFIG_INPUT_ENABLE.
This will be used to add support for PIN_CONFIG_INPUT_ENABLE to the
driver.

Fixes: e7165b1d ("pinctrl/rockchip: add a queue for deferred pin output settings on probe")
Fixes: 59dd178e ("gpio/rockchip: fetch deferred output settings on probe")
Signed-off-by: Caleb Connolly <kc@postmarketos.org>
---
 drivers/gpio/gpio-rockchip.c       | 24 ++++++++-----
 drivers/pinctrl/pinctrl-rockchip.c | 54 ++++++++++++++++--------------
 drivers/pinctrl/pinctrl-rockchip.h |  7 ++--
 3 files changed, 50 insertions(+), 35 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index 099e358d2491..bcf5214e3586 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -19,6 +19,7 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
+#include <linux/pinctrl/pinconf-generic.h>
 #include <linux/regmap.h>
 
 #include "../pinctrl/core.h"
@@ -706,7 +707,7 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 	struct device_node *pctlnp = of_get_parent(np);
 	struct pinctrl_dev *pctldev = NULL;
 	struct rockchip_pin_bank *bank = NULL;
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 	static int gpio;
 	int id, ret;
 
@@ -747,15 +748,22 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	while (!list_empty(&bank->deferred_output)) {
-		cfg = list_first_entry(&bank->deferred_output,
-				       struct rockchip_pin_output_deferred, head);
+	while (!list_empty(&bank->deferred_pins)) {
+		cfg = list_first_entry(&bank->deferred_pins,
+				       struct rockchip_pin_deferred, head);
 		list_del(&cfg->head);
 
-		ret = rockchip_gpio_direction_output(&bank->gpio_chip, cfg->pin, cfg->arg);
-		if (ret)
-			dev_warn(dev, "setting output pin %u to %u failed\n", cfg->pin, cfg->arg);
-
+		switch (cfg->param) {
+		case PIN_CONFIG_OUTPUT:
+			ret = rockchip_gpio_direction_output(&bank->gpio_chip, cfg->pin, cfg->arg);
+			if (ret)
+				dev_warn(dev, "setting output pin %u to %u failed\n", cfg->pin,
+					 cfg->arg);
+			break;
+		default:
+			dev_warn(dev, "unknown deferred config param %d\n", cfg->param);
+			break;
+		}
 		kfree(cfg);
 	}
 
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index d8dd8415fa81..d54fc1cdf609 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2095,19 +2095,20 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
 	return false;
 }
 
-static int rockchip_pinconf_defer_output(struct rockchip_pin_bank *bank,
-					 unsigned int pin, u32 arg)
+static int rockchip_pinconf_defer_pin(struct rockchip_pin_bank *bank,
+					 unsigned int pin, u32 param, u32 arg)
 {
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 
 	cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
 	if (!cfg)
 		return -ENOMEM;
 
 	cfg->pin = pin;
+	cfg->param = param;
 	cfg->arg = arg;
 
-	list_add_tail(&cfg->head, &bank->deferred_output);
+	list_add_tail(&cfg->head, &bank->deferred_pins);
 
 	return 0;
 }
@@ -2128,6 +2129,25 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 		param = pinconf_to_config_param(configs[i]);
 		arg = pinconf_to_config_argument(configs[i]);
 
+		if (param == (PIN_CONFIG_OUTPUT | PIN_CONFIG_INPUT_ENABLE)) {
+			/*
+			 * Check for gpio driver not being probed yet.
+			 * The lock makes sure that either gpio-probe has completed
+			 * or the gpio driver hasn't probed yet.
+			 */
+			mutex_lock(&bank->deferred_lock);
+			if (!gpio || !gpio->direction_output) {
+				rc = rockchip_pinconf_defer_pin(bank, pin - bank->pin_base, param,
+								arg);
+				mutex_unlock(&bank->deferred_lock);
+				if (rc)
+					return rc;
+
+				break;
+			}
+			mutex_unlock(&bank->deferred_lock);
+		}
+
 		switch (param) {
 		case PIN_CONFIG_BIAS_DISABLE:
 			rc =  rockchip_set_pull(bank, pin - bank->pin_base,
@@ -2156,22 +2176,6 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 			if (rc != RK_FUNC_GPIO)
 				return -EINVAL;
 
-			/*
-			 * Check for gpio driver not being probed yet.
-			 * The lock makes sure that either gpio-probe has completed
-			 * or the gpio driver hasn't probed yet.
-			 */
-			mutex_lock(&bank->deferred_lock);
-			if (!gpio || !gpio->direction_output) {
-				rc = rockchip_pinconf_defer_output(bank, pin - bank->pin_base, arg);
-				mutex_unlock(&bank->deferred_lock);
-				if (rc)
-					return rc;
-
-				break;
-			}
-			mutex_unlock(&bank->deferred_lock);
-
 			rc = gpio->direction_output(gpio, pin - bank->pin_base,
 						    arg);
 			if (rc)
@@ -2485,7 +2489,7 @@ static int rockchip_pinctrl_register(struct platform_device *pdev,
 			pdesc++;
 		}
 
-		INIT_LIST_HEAD(&pin_bank->deferred_output);
+		INIT_LIST_HEAD(&pin_bank->deferred_pins);
 		mutex_init(&pin_bank->deferred_lock);
 	}
 
@@ -2746,7 +2750,7 @@ static int rockchip_pinctrl_remove(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info = platform_get_drvdata(pdev);
 	struct rockchip_pin_bank *bank;
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 	int i;
 
 	of_platform_depopulate(&pdev->dev);
@@ -2755,9 +2759,9 @@ static int rockchip_pinctrl_remove(struct platform_device *pdev)
 		bank = &info->ctrl->pin_banks[i];
 
 		mutex_lock(&bank->deferred_lock);
-		while (!list_empty(&bank->deferred_output)) {
-			cfg = list_first_entry(&bank->deferred_output,
-					       struct rockchip_pin_output_deferred, head);
+		while (!list_empty(&bank->deferred_pins)) {
+			cfg = list_first_entry(&bank->deferred_pins,
+					       struct rockchip_pin_deferred, head);
 			list_del(&cfg->head);
 			kfree(cfg);
 		}
diff --git a/drivers/pinctrl/pinctrl-rockchip.h b/drivers/pinctrl/pinctrl-rockchip.h
index 91f10279d084..98a01a616da6 100644
--- a/drivers/pinctrl/pinctrl-rockchip.h
+++ b/drivers/pinctrl/pinctrl-rockchip.h
@@ -171,7 +171,7 @@ struct rockchip_pin_bank {
 	u32				toggle_edge_mode;
 	u32				recalced_mask;
 	u32				route_mask;
-	struct list_head		deferred_output;
+	struct list_head		deferred_pins;
 	struct mutex			deferred_lock;
 };
 
@@ -247,9 +247,12 @@ struct rockchip_pin_config {
 	unsigned int		nconfigs;
 };
 
-struct rockchip_pin_output_deferred {
+enum pin_config_param;
+
+struct rockchip_pin_deferred {
 	struct list_head head;
 	unsigned int pin;
+	enum pin_config_param param;
 	u32 arg;
 };
 
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Caleb Connolly <kc@postmarketos.org>
To: Caleb Connolly <kc@postmarketos.org>,
	Rob Herring <robh+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-gpio@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht, martijn@brixit.nl,
	Arnaud Ferraris <arnaud.ferraris@collabora.com>
Subject: [PATCH 1/4] pinctrl/rockchip: support deferring other gpio params
Date: Mon, 28 Mar 2022 01:50:02 +0100	[thread overview]
Message-ID: <20220328005005.72492-2-kc@postmarketos.org> (raw)
In-Reply-To: <20220328005005.72492-1-kc@postmarketos.org>

Add support for deferring other params like PIN_CONFIG_INPUT_ENABLE.
This will be used to add support for PIN_CONFIG_INPUT_ENABLE to the
driver.

Fixes: e7165b1d ("pinctrl/rockchip: add a queue for deferred pin output settings on probe")
Fixes: 59dd178e ("gpio/rockchip: fetch deferred output settings on probe")
Signed-off-by: Caleb Connolly <kc@postmarketos.org>
---
 drivers/gpio/gpio-rockchip.c       | 24 ++++++++-----
 drivers/pinctrl/pinctrl-rockchip.c | 54 ++++++++++++++++--------------
 drivers/pinctrl/pinctrl-rockchip.h |  7 ++--
 3 files changed, 50 insertions(+), 35 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index 099e358d2491..bcf5214e3586 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -19,6 +19,7 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
+#include <linux/pinctrl/pinconf-generic.h>
 #include <linux/regmap.h>
 
 #include "../pinctrl/core.h"
@@ -706,7 +707,7 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 	struct device_node *pctlnp = of_get_parent(np);
 	struct pinctrl_dev *pctldev = NULL;
 	struct rockchip_pin_bank *bank = NULL;
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 	static int gpio;
 	int id, ret;
 
@@ -747,15 +748,22 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	while (!list_empty(&bank->deferred_output)) {
-		cfg = list_first_entry(&bank->deferred_output,
-				       struct rockchip_pin_output_deferred, head);
+	while (!list_empty(&bank->deferred_pins)) {
+		cfg = list_first_entry(&bank->deferred_pins,
+				       struct rockchip_pin_deferred, head);
 		list_del(&cfg->head);
 
-		ret = rockchip_gpio_direction_output(&bank->gpio_chip, cfg->pin, cfg->arg);
-		if (ret)
-			dev_warn(dev, "setting output pin %u to %u failed\n", cfg->pin, cfg->arg);
-
+		switch (cfg->param) {
+		case PIN_CONFIG_OUTPUT:
+			ret = rockchip_gpio_direction_output(&bank->gpio_chip, cfg->pin, cfg->arg);
+			if (ret)
+				dev_warn(dev, "setting output pin %u to %u failed\n", cfg->pin,
+					 cfg->arg);
+			break;
+		default:
+			dev_warn(dev, "unknown deferred config param %d\n", cfg->param);
+			break;
+		}
 		kfree(cfg);
 	}
 
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index d8dd8415fa81..d54fc1cdf609 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2095,19 +2095,20 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
 	return false;
 }
 
-static int rockchip_pinconf_defer_output(struct rockchip_pin_bank *bank,
-					 unsigned int pin, u32 arg)
+static int rockchip_pinconf_defer_pin(struct rockchip_pin_bank *bank,
+					 unsigned int pin, u32 param, u32 arg)
 {
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 
 	cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
 	if (!cfg)
 		return -ENOMEM;
 
 	cfg->pin = pin;
+	cfg->param = param;
 	cfg->arg = arg;
 
-	list_add_tail(&cfg->head, &bank->deferred_output);
+	list_add_tail(&cfg->head, &bank->deferred_pins);
 
 	return 0;
 }
@@ -2128,6 +2129,25 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 		param = pinconf_to_config_param(configs[i]);
 		arg = pinconf_to_config_argument(configs[i]);
 
+		if (param == (PIN_CONFIG_OUTPUT | PIN_CONFIG_INPUT_ENABLE)) {
+			/*
+			 * Check for gpio driver not being probed yet.
+			 * The lock makes sure that either gpio-probe has completed
+			 * or the gpio driver hasn't probed yet.
+			 */
+			mutex_lock(&bank->deferred_lock);
+			if (!gpio || !gpio->direction_output) {
+				rc = rockchip_pinconf_defer_pin(bank, pin - bank->pin_base, param,
+								arg);
+				mutex_unlock(&bank->deferred_lock);
+				if (rc)
+					return rc;
+
+				break;
+			}
+			mutex_unlock(&bank->deferred_lock);
+		}
+
 		switch (param) {
 		case PIN_CONFIG_BIAS_DISABLE:
 			rc =  rockchip_set_pull(bank, pin - bank->pin_base,
@@ -2156,22 +2176,6 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 			if (rc != RK_FUNC_GPIO)
 				return -EINVAL;
 
-			/*
-			 * Check for gpio driver not being probed yet.
-			 * The lock makes sure that either gpio-probe has completed
-			 * or the gpio driver hasn't probed yet.
-			 */
-			mutex_lock(&bank->deferred_lock);
-			if (!gpio || !gpio->direction_output) {
-				rc = rockchip_pinconf_defer_output(bank, pin - bank->pin_base, arg);
-				mutex_unlock(&bank->deferred_lock);
-				if (rc)
-					return rc;
-
-				break;
-			}
-			mutex_unlock(&bank->deferred_lock);
-
 			rc = gpio->direction_output(gpio, pin - bank->pin_base,
 						    arg);
 			if (rc)
@@ -2485,7 +2489,7 @@ static int rockchip_pinctrl_register(struct platform_device *pdev,
 			pdesc++;
 		}
 
-		INIT_LIST_HEAD(&pin_bank->deferred_output);
+		INIT_LIST_HEAD(&pin_bank->deferred_pins);
 		mutex_init(&pin_bank->deferred_lock);
 	}
 
@@ -2746,7 +2750,7 @@ static int rockchip_pinctrl_remove(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info = platform_get_drvdata(pdev);
 	struct rockchip_pin_bank *bank;
-	struct rockchip_pin_output_deferred *cfg;
+	struct rockchip_pin_deferred *cfg;
 	int i;
 
 	of_platform_depopulate(&pdev->dev);
@@ -2755,9 +2759,9 @@ static int rockchip_pinctrl_remove(struct platform_device *pdev)
 		bank = &info->ctrl->pin_banks[i];
 
 		mutex_lock(&bank->deferred_lock);
-		while (!list_empty(&bank->deferred_output)) {
-			cfg = list_first_entry(&bank->deferred_output,
-					       struct rockchip_pin_output_deferred, head);
+		while (!list_empty(&bank->deferred_pins)) {
+			cfg = list_first_entry(&bank->deferred_pins,
+					       struct rockchip_pin_deferred, head);
 			list_del(&cfg->head);
 			kfree(cfg);
 		}
diff --git a/drivers/pinctrl/pinctrl-rockchip.h b/drivers/pinctrl/pinctrl-rockchip.h
index 91f10279d084..98a01a616da6 100644
--- a/drivers/pinctrl/pinctrl-rockchip.h
+++ b/drivers/pinctrl/pinctrl-rockchip.h
@@ -171,7 +171,7 @@ struct rockchip_pin_bank {
 	u32				toggle_edge_mode;
 	u32				recalced_mask;
 	u32				route_mask;
-	struct list_head		deferred_output;
+	struct list_head		deferred_pins;
 	struct mutex			deferred_lock;
 };
 
@@ -247,9 +247,12 @@ struct rockchip_pin_config {
 	unsigned int		nconfigs;
 };
 
-struct rockchip_pin_output_deferred {
+enum pin_config_param;
+
+struct rockchip_pin_deferred {
 	struct list_head head;
 	unsigned int pin;
+	enum pin_config_param param;
 	u32 arg;
 };
 
-- 
2.35.1


  reply	other threads:[~2022-03-28  0:53 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-28  0:50 [PATCH 0/4] rockchip: support configuring pins as input Caleb Connolly
2022-03-28  0:50 ` Caleb Connolly
2022-03-28  0:50 ` Caleb Connolly
2022-03-28  0:50 ` Caleb Connolly [this message]
2022-03-28  0:50   ` [PATCH 1/4] pinctrl/rockchip: support deferring other gpio params Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-03-28  0:50 ` [PATCH 2/4] pinctrl/rockchip: support setting input-enable param Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-03-28  0:50 ` [PATCH 3/4] gpio/rockchip: handle deferring input-enable pinconfs Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-04-18 19:47   ` Bartosz Golaszewski
2022-04-18 19:47     ` Bartosz Golaszewski
2022-04-18 19:47     ` Bartosz Golaszewski
2022-03-28  0:50 ` [PATCH 4/4] arm64: dts: rockchip: rk3399: add an input enable pinconf Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-03-28  0:50   ` Caleb Connolly
2022-04-19 22:37 ` [PATCH 0/4] rockchip: support configuring pins as input Linus Walleij
2022-04-19 22:37   ` Linus Walleij
2022-04-19 22:37   ` Linus Walleij
2022-04-30 14:05 ` (subset) " Heiko Stuebner
2022-04-30 14:05   ` Heiko Stuebner
2022-04-30 14:05   ` Heiko Stuebner

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220328005005.72492-2-kc@postmarketos.org \
    --to=kc@postmarketos.org \
    --cc=arnaud.ferraris@collabora.com \
    --cc=brgl@bgdev.pl \
    --cc=devicetree@vger.kernel.org \
    --cc=heiko@sntech.de \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rockchip@lists.infradead.org \
    --cc=martijn@brixit.nl \
    --cc=robh+dt@kernel.org \
    --cc=~postmarketos/upstreaming@lists.sr.ht \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.