1 files changed, 65 insertions, 58 deletions

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 0dabbcf68b9f..998f23d6c317 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -12,14 +12,13 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/list.h>
 #include <linux/interrupt.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/seq_file.h>
 
@@ -82,8 +81,6 @@ struct pcs_conf_type {
  * @name:	pinctrl function name
  * @vals:	register and vals array
  * @nvals:	number of entries in vals array
- * @pgnames:	array of pingroup names the function uses
- * @npgnames:	number of pingroup names the function uses
  * @conf:	array of pin configurations
  * @nconfs:	number of pin configurations available
  * @node:	list node
@@ -92,8 +89,6 @@ struct pcs_function {
 	const char *name;
 	struct pcs_func_vals *vals;
 	unsigned nvals;
-	const char **pgnames;
-	int npgnames;
 	struct pcs_conf_vals *conf;
 	int nconfs;
 	struct list_head node;
@@ -240,32 +235,32 @@ static struct lock_class_key pcs_request_class;
  * does not help in this case.
  */
 
-static unsigned __maybe_unused pcs_readb(void __iomem *reg)
+static unsigned int pcs_readb(void __iomem *reg)
 {
 	return readb(reg);
 }
 
-static unsigned __maybe_unused pcs_readw(void __iomem *reg)
+static unsigned int pcs_readw(void __iomem *reg)
 {
 	return readw(reg);
 }
 
-static unsigned __maybe_unused pcs_readl(void __iomem *reg)
+static unsigned int pcs_readl(void __iomem *reg)
 {
 	return readl(reg);
 }
 
-static void __maybe_unused pcs_writeb(unsigned val, void __iomem *reg)
+static void pcs_writeb(unsigned int val, void __iomem *reg)
 {
 	writeb(val, reg);
 }
 
-static void __maybe_unused pcs_writew(unsigned val, void __iomem *reg)
+static void pcs_writew(unsigned int val, void __iomem *reg)
 {
 	writew(val, reg);
 }
 
-static void __maybe_unused pcs_writel(unsigned val, void __iomem *reg)
+static void pcs_writel(unsigned int val, void __iomem *reg)
 {
 	writel(val, reg);
 }
@@ -341,7 +336,7 @@ static int pcs_get_function(struct pinctrl_dev *pctldev, unsigned pin,
 	struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
 	struct pin_desc *pdesc = pin_desc_get(pctldev, pin);
 	const struct pinctrl_setting_mux *setting;
-	struct function_desc *function;
+	const struct function_desc *function;
 	unsigned fselector;
 
 	/* If pin is not described in DTS & enabled, mux_setting is NULL. */
@@ -350,6 +345,8 @@ static int pcs_get_function(struct pinctrl_dev *pctldev, unsigned pin,
 		return -ENOTSUPP;
 	fselector = setting->func;
 	function = pinmux_generic_get_function(pctldev, fselector);
+	if (!function)
+		return -EINVAL;
 	*func = function->data;
 	if (!(*func)) {
 		dev_err(pcs->dev, "%s could not find function%i\n",
@@ -363,7 +360,7 @@ static int pcs_set_mux(struct pinctrl_dev *pctldev, unsigned fselector,
 	unsigned group)
 {
 	struct pcs_device *pcs;
-	struct function_desc *function;
+	const struct function_desc *function;
 	struct pcs_function *func;
 	int i;
 
@@ -488,7 +485,8 @@ static int pcs_pinconf_get(struct pinctrl_dev *pctldev,
 	struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
 	struct pcs_function *func;
 	enum pin_config_param param;
-	unsigned offset = 0, data = 0, i, j, ret;
+	unsigned offset = 0, data = 0, i, j;
+	int ret;
 
 	ret = pcs_get_function(pctldev, pin, &func);
 	if (ret)
@@ -552,24 +550,33 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
 {
 	struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
 	struct pcs_function *func;
-	unsigned offset = 0, shift = 0, i, data, ret;
+	unsigned offset = 0, shift = 0, i, data;
 	u32 arg;
-	int j;
+	int j, ret;
+	enum pin_config_param param;
 
 	ret = pcs_get_function(pctldev, pin, &func);
 	if (ret)
 		return ret;
 
 	for (j = 0; j < num_configs; j++) {
+		param = pinconf_to_config_param(configs[j]);
+
+		/* BIAS_DISABLE has no entry in the func->conf table */
+		if (param == PIN_CONFIG_BIAS_DISABLE) {
+			/* This just disables all bias entries */
+			pcs_pinconf_clear_bias(pctldev, pin);
+			continue;
+		}
+
 		for (i = 0; i < func->nconfs; i++) {
-			if (pinconf_to_config_param(configs[j])
-				!= func->conf[i].param)
+			if (param != func->conf[i].param)
 				continue;
 
 			offset = pin * (pcs->width / BITS_PER_BYTE);
 			data = pcs->read(pcs->base + offset);
 			arg = pinconf_to_config_argument(configs[j]);
-			switch (func->conf[i].param) {
+			switch (param) {
 			/* 2 parameters */
 			case PIN_CONFIG_INPUT_SCHMITT:
 			case PIN_CONFIG_DRIVE_STRENGTH:
@@ -581,13 +588,12 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
 				data |= (arg << shift) & func->conf[i].mask;
 				break;
 			/* 4 parameters */
-			case PIN_CONFIG_BIAS_DISABLE:
-				pcs_pinconf_clear_bias(pctldev, pin);
-				break;
 			case PIN_CONFIG_BIAS_PULL_DOWN:
 			case PIN_CONFIG_BIAS_PULL_UP:
-				if (arg)
+				if (arg) {
 					pcs_pinconf_clear_bias(pctldev, pin);
+					data = pcs->read(pcs->base + offset);
+				}
 				fallthrough;
 			case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
 				data &= ~func->conf[i].mask;
@@ -1328,7 +1334,6 @@ static void pcs_irq_free(struct pcs_device *pcs)
 static void pcs_free_resources(struct pcs_device *pcs)
 {
 	pcs_irq_free(pcs);
-	pinctrl_unregister(pcs->pctl);
 
 #if IS_BUILTIN(CONFIG_PINCTRL_SINGLE)
 	if (pcs->missing_nr_pinctrl_cells)
@@ -1609,15 +1614,16 @@ static int pcs_irq_init_chained_handler(struct pcs_device *pcs,
 
 	/*
 	 * We can use the register offset as the hardirq
-	 * number as irq_domain_add_simple maps them lazily.
+	 * number as irq_domain_create_simple maps them lazily.
 	 * This way we can easily support more than one
 	 * interrupt per function if needed.
 	 */
 	num_irqs = pcs->size;
 
-	pcs->domain = irq_domain_add_simple(np, num_irqs, 0,
-					    &pcs_irqdomain_ops,
-					    pcs_soc);
+	pcs->domain = irq_domain_create_simple(of_fwnode_handle(np),
+					       num_irqs, 0,
+					       &pcs_irqdomain_ops,
+					       pcs_soc);
 	if (!pcs->domain) {
 		irq_set_chained_handler(pcs_soc->irq, NULL);
 		return -EINVAL;
@@ -1626,7 +1632,6 @@ static int pcs_irq_init_chained_handler(struct pcs_device *pcs,
 	return 0;
 }
 
-#ifdef CONFIG_PM
 static int pcs_save_context(struct pcs_device *pcs)
 {
 	int i, mux_bytes;
@@ -1691,14 +1696,9 @@ static void pcs_restore_context(struct pcs_device *pcs)
 	}
 }
 
-static int pinctrl_single_suspend(struct platform_device *pdev,
-					pm_message_t state)
+static int pinctrl_single_suspend_noirq(struct device *dev)
 {
-	struct pcs_device *pcs;
-
-	pcs = platform_get_drvdata(pdev);
-	if (!pcs)
-		return -EINVAL;
+	struct pcs_device *pcs = dev_get_drvdata(dev);
 
 	if (pcs->flags & PCS_CONTEXT_LOSS_OFF) {
 		int ret;
@@ -1711,20 +1711,19 @@ static int pinctrl_single_suspend(struct platform_device *pdev,
 	return pinctrl_force_sleep(pcs->pctl);
 }
 
-static int pinctrl_single_resume(struct platform_device *pdev)
+static int pinctrl_single_resume_noirq(struct device *dev)
 {
-	struct pcs_device *pcs;
-
-	pcs = platform_get_drvdata(pdev);
-	if (!pcs)
-		return -EINVAL;
+	struct pcs_device *pcs = dev_get_drvdata(dev);
 
 	if (pcs->flags & PCS_CONTEXT_LOSS_OFF)
 		pcs_restore_context(pcs);
 
 	return pinctrl_force_default(pcs->pctl);
 }
-#endif
+
+static DEFINE_NOIRQ_DEV_PM_OPS(pinctrl_single_pm_ops,
+			       pinctrl_single_suspend_noirq,
+			       pinctrl_single_resume_noirq);
 
 /**
  * pcs_quirk_missing_pinctrl_cells - handle legacy binding
@@ -1885,7 +1884,7 @@ static int pcs_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto free;
 
-	ret = pinctrl_register_and_init(&pcs->desc, pcs->dev, pcs, &pcs->pctl);
+	ret = devm_pinctrl_register_and_init(pcs->dev, &pcs->desc, pcs, &pcs->pctl);
 	if (ret) {
 		dev_err(pcs->dev, "could not register single pinctrl driver\n");
 		goto free;
@@ -1918,24 +1917,22 @@ static int pcs_probe(struct platform_device *pdev)
 
 	dev_info(pcs->dev, "%i pins, size %u\n", pcs->desc.npins, pcs->size);
 
-	return pinctrl_enable(pcs->pctl);
+	ret = pinctrl_enable(pcs->pctl);
+	if (ret)
+		goto free;
 
+	return 0;
 free:
 	pcs_free_resources(pcs);
 
 	return ret;
 }
 
-static int pcs_remove(struct platform_device *pdev)
+static void pcs_remove(struct platform_device *pdev)
 {
 	struct pcs_device *pcs = platform_get_drvdata(pdev);
 
-	if (!pcs)
-		return 0;
-
 	pcs_free_resources(pcs);
-
-	return 0;
 }
 
 static const struct pcs_soc_data pinctrl_single_omap_wkup = {
@@ -1955,6 +1952,16 @@ static const struct pcs_soc_data pinctrl_single_am437x = {
 	.irq_status_mask = (1 << 30),   /* OMAP_WAKEUP_EVENT */
 };
 
+static const struct pcs_soc_data pinctrl_single_am654 = {
+	.flags = PCS_QUIRK_SHARED_IRQ | PCS_CONTEXT_LOSS_OFF,
+	.irq_enable_mask = (1 << 29),   /* WKUP_EN */
+	.irq_status_mask = (1 << 30),   /* WKUP_EVT */
+};
+
+static const struct pcs_soc_data pinctrl_single_j7200 = {
+	.flags = PCS_CONTEXT_LOSS_OFF,
+};
+
 static const struct pcs_soc_data pinctrl_single = {
 };
 
@@ -1963,11 +1970,14 @@ static const struct pcs_soc_data pinconf_single = {
 };
 
 static const struct of_device_id pcs_of_match[] = {
+	{ .compatible = "marvell,pxa1908-padconf", .data = &pinconf_single },
+	{ .compatible = "ti,am437-padconf", .data = &pinctrl_single_am437x },
+	{ .compatible = "ti,am654-padconf", .data = &pinctrl_single_am654 },
+	{ .compatible = "ti,dra7-padconf", .data = &pinctrl_single_dra7 },
 	{ .compatible = "ti,omap3-padconf", .data = &pinctrl_single_omap_wkup },
 	{ .compatible = "ti,omap4-padconf", .data = &pinctrl_single_omap_wkup },
 	{ .compatible = "ti,omap5-padconf", .data = &pinctrl_single_omap_wkup },
-	{ .compatible = "ti,dra7-padconf", .data = &pinctrl_single_dra7 },
-	{ .compatible = "ti,am437-padconf", .data = &pinctrl_single_am437x },
+	{ .compatible = "ti,j7200-padconf", .data = &pinctrl_single_j7200 },
 	{ .compatible = "pinctrl-single", .data = &pinctrl_single },
 	{ .compatible = "pinconf-single", .data = &pinconf_single },
 	{ },
@@ -1980,11 +1990,8 @@ static struct platform_driver pcs_driver = {
 	.driver = {
 		.name		= DRIVER_NAME,
 		.of_match_table	= pcs_of_match,
+		.pm = pm_sleep_ptr(&pinctrl_single_pm_ops),
 	},
-#ifdef CONFIG_PM
-	.suspend = pinctrl_single_suspend,
-	.resume = pinctrl_single_resume,
-#endif
 };
 
 module_platform_driver(pcs_driver);