Merge tag 'pinctrl-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of the pin control changes for the v5.9 kernel
  series:

  Core changes:

   - The GPIO patch "gpiolib: Introduce for_each_requested_gpio_in_range()
     macro" was put in an immutable branch and merged into the pinctrl
     tree as well. We see these changes also here.

   - Improved debug output for pins used as GPIO.

  New drivers:

   - Ocelot Sparx5 SoC driver.

   - Intel Emmitsburg SoC subdriver.

   - Intel Tiger Lake-H SoC subdriver.

   - Qualcomm PM660 SoC subdriver.

   - Renesas SH-PFC R8A774E1 subdriver.

  Driver improvements:

   - Linear improvement and cleanups of the Intel drivers for
     Cherryview, Lynxpoint, Baytrail etc. Improved locking among other
     things.

   - Renesas SH-PFC has added support for RPC pins, groups, and
     functions to r8a77970 and r8a77980.

   - The newere Freescale (now NXP) i.MX8 pin controllers have been
     modularized. This is driven by the Google Android GKI initiative I
     think.

   - Open drain support for pins on the Qualcomm IPQ4019.

   - The Ingenic driver can handle both edges IRQ detection.

   - A big slew of documentation fixes all over the place.

   - A few irqchip template conversions by yours truly.

* tag 'pinctrl-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (107 commits)
  dt-bindings: pinctrl: add bindings for MediaTek MT6779 SoC
  pinctrl: stmfx: Use irqchip template
  pinctrl: amd: Use irqchip template
  pinctrl: mediatek: fix build for tristate changes
  pinctrl: samsung: Use bank name as irqchip name
  pinctrl: core: print gpio in pins debugfs file
  pinctrl: mediatek: add mt6779 eint support
  pinctrl: mediatek: add pinctrl support for MT6779 SoC
  pinctrl: mediatek: avoid virtual gpio trying to set reg
  pinctrl: mediatek: update pinmux definitions for mt6779
  pinctrl: stm32: use the hwspin_lock_timeout_in_atomic() API
  pinctrl: mcp23s08: Use irqchip template
  pinctrl: sx150x: Use irqchip template
  dt-bindings: ingenic,pinctrl: Support pinmux/pinconf nodes
  pinctrl: intel: Add Intel Emmitsburg pin controller support
  pinctl: ti: iodelay: Replace HTTP links with HTTPS ones
  Revert "gpio: omap: handle pin config bias flags"
  pinctrl: single: Use fallthrough pseudo-keyword
  pinctrl: qcom: spmi-gpio: Use fallthrough pseudo-keyword
  pinctrl: baytrail: Use fallthrough pseudo-keyword
  ...

1 files changed, 32 insertions, 26 deletions

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 84501c785473..b9ea09fabf84 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -38,7 +38,7 @@ struct exynos_irq_chip {
 	u32 eint_con;
 	u32 eint_mask;
 	u32 eint_pend;
-	u32 eint_wake_mask_value;
+	u32 *eint_wake_mask_value;
 	u32 eint_wake_mask_reg;
 	void (*set_eint_wakeup_mask)(struct samsung_pinctrl_drv_data *drvdata,
 				     struct exynos_irq_chip *irq_chip);
@@ -207,7 +207,7 @@ static void exynos_irq_release_resources(struct irq_data *irqd)
 /*
  * irq_chip for gpio interrupts.
  */
-static struct exynos_irq_chip exynos_gpio_irq_chip = {
+static const struct exynos_irq_chip exynos_gpio_irq_chip __initconst = {
 	.chip = {
 		.name = "exynos_gpio_irq_chip",
 		.irq_unmask = exynos_irq_unmask,
@@ -274,7 +274,7 @@ struct exynos_eint_gpio_save {
  * exynos_eint_gpio_init() - setup handling of external gpio interrupts.
  * @d: driver data of samsung pinctrl driver.
  */
-int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
+__init int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
 {
 	struct samsung_pin_bank *bank;
 	struct device *dev = d->dev;
@@ -297,6 +297,15 @@ int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
 	for (i = 0; i < d->nr_banks; ++i, ++bank) {
 		if (bank->eint_type != EINT_TYPE_GPIO)
 			continue;
+
+		bank->irq_chip = devm_kmemdup(dev, &exynos_gpio_irq_chip,
+					   sizeof(*bank->irq_chip), GFP_KERNEL);
+		if (!bank->irq_chip) {
+			ret = -ENOMEM;
+			goto err_domains;
+		}
+		bank->irq_chip->chip.name = bank->name;
+
 		bank->irq_domain = irq_domain_add_linear(bank->of_node,
 				bank->nr_pins, &exynos_eint_irqd_ops, bank);
 		if (!bank->irq_domain) {
@@ -313,7 +322,6 @@ int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
 			goto err_domains;
 		}
 
-		bank->irq_chip = &exynos_gpio_irq_chip;
 	}
 
 	return 0;
@@ -338,9 +346,9 @@ static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on)
 	pr_info("wake %s for irq %d\n", on ? "enabled" : "disabled", irqd->irq);
 
 	if (!on)
-		our_chip->eint_wake_mask_value |= bit;
+		*our_chip->eint_wake_mask_value |= bit;
 	else
-		our_chip->eint_wake_mask_value &= ~bit;
+		*our_chip->eint_wake_mask_value &= ~bit;
 
 	return 0;
 }
@@ -360,10 +368,10 @@ exynos_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata,
 	pmu_regs = drvdata->retention_ctrl->priv;
 	dev_info(drvdata->dev,
 		 "Setting external wakeup interrupt mask: 0x%x\n",
-		 irq_chip->eint_wake_mask_value);
+		 *irq_chip->eint_wake_mask_value);
 
 	regmap_write(pmu_regs, irq_chip->eint_wake_mask_reg,
-		     irq_chip->eint_wake_mask_value);
+		     *irq_chip->eint_wake_mask_value);
 }
 
 static void
@@ -382,10 +390,11 @@ s5pv210_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata,
 
 	clk_base = (void __iomem *) drvdata->retention_ctrl->priv;
 
-	__raw_writel(irq_chip->eint_wake_mask_value,
+	__raw_writel(*irq_chip->eint_wake_mask_value,
 		     clk_base + irq_chip->eint_wake_mask_reg);
 }
 
+static u32 eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED;
 /*
  * irq_chip for wakeup interrupts
  */
@@ -403,7 +412,7 @@ static const struct exynos_irq_chip s5pv210_wkup_irq_chip __initconst = {
 	.eint_con = EXYNOS_WKUP_ECON_OFFSET,
 	.eint_mask = EXYNOS_WKUP_EMASK_OFFSET,
 	.eint_pend = EXYNOS_WKUP_EPEND_OFFSET,
-	.eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED,
+	.eint_wake_mask_value = &eint_wake_mask_value,
 	/* Only differences with exynos4210_wkup_irq_chip: */
 	.eint_wake_mask_reg = S5PV210_EINT_WAKEUP_MASK,
 	.set_eint_wakeup_mask = s5pv210_pinctrl_set_eint_wakeup_mask,
@@ -423,7 +432,7 @@ static const struct exynos_irq_chip exynos4210_wkup_irq_chip __initconst = {
 	.eint_con = EXYNOS_WKUP_ECON_OFFSET,
 	.eint_mask = EXYNOS_WKUP_EMASK_OFFSET,
 	.eint_pend = EXYNOS_WKUP_EPEND_OFFSET,
-	.eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED,
+	.eint_wake_mask_value = &eint_wake_mask_value,
 	.eint_wake_mask_reg = EXYNOS_EINT_WAKEUP_MASK,
 	.set_eint_wakeup_mask = exynos_pinctrl_set_eint_wakeup_mask,
 };
@@ -442,7 +451,7 @@ static const struct exynos_irq_chip exynos7_wkup_irq_chip __initconst = {
 	.eint_con = EXYNOS7_WKUP_ECON_OFFSET,
 	.eint_mask = EXYNOS7_WKUP_EMASK_OFFSET,
 	.eint_pend = EXYNOS7_WKUP_EPEND_OFFSET,
-	.eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED,
+	.eint_wake_mask_value = &eint_wake_mask_value,
 	.eint_wake_mask_reg = EXYNOS5433_EINT_WAKEUP_MASK,
 	.set_eint_wakeup_mask = exynos_pinctrl_set_eint_wakeup_mask,
 };
@@ -513,7 +522,7 @@ static void exynos_irq_demux_eint16_31(struct irq_desc *desc)
  * exynos_eint_wkup_init() - setup handling of external wakeup interrupts.
  * @d: driver data of samsung pinctrl driver.
  */
-int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
+__init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 {
 	struct device *dev = d->dev;
 	struct device_node *wkup_np = NULL;
@@ -521,7 +530,7 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 	struct samsung_pin_bank *bank;
 	struct exynos_weint_data *weint_data;
 	struct exynos_muxed_weint_data *muxed_data;
-	struct exynos_irq_chip *irq_chip;
+	const struct exynos_irq_chip *irq_chip;
 	unsigned int muxed_banks = 0;
 	unsigned int i;
 	int idx, irq;
@@ -531,12 +540,7 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 
 		match = of_match_node(exynos_wkup_irq_ids, np);
 		if (match) {
-			irq_chip = kmemdup(match->data,
-				sizeof(*irq_chip), GFP_KERNEL);
-			if (!irq_chip) {
-				of_node_put(np);
-				return -ENOMEM;
-			}
+			irq_chip = match->data;
 			wkup_np = np;
 			break;
 		}
@@ -549,6 +553,14 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 		if (bank->eint_type != EINT_TYPE_WKUP)
 			continue;
 
+		bank->irq_chip = devm_kmemdup(dev, irq_chip, sizeof(*irq_chip),
+					      GFP_KERNEL);
+		if (!bank->irq_chip) {
+			of_node_put(wkup_np);
+			return -ENOMEM;
+		}
+		bank->irq_chip->chip.name = bank->name;
+
 		bank->irq_domain = irq_domain_add_linear(bank->of_node,
 				bank->nr_pins, &exynos_eint_irqd_ops, bank);
 		if (!bank->irq_domain) {
@@ -557,8 +569,6 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 			return -ENXIO;
 		}
 
-		bank->irq_chip = irq_chip;
-
 		if (!of_find_property(bank->of_node, "interrupts", NULL)) {
 			bank->eint_type = EINT_TYPE_WKUP_MUX;
 			++muxed_banks;
@@ -657,10 +667,6 @@ void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata)
 				irq_chip = bank->irq_chip;
 				irq_chip->set_eint_wakeup_mask(drvdata,
 							       irq_chip);
-			} else if (bank->irq_chip != irq_chip) {
-				dev_warn(drvdata->dev,
-					 "More than one external wakeup interrupt chip configured (bank: %s). This is not supported by hardware nor by driver.\n",
-					 bank->name);
 			}
 		}
 	}