Merge tag 'pinctrl-v4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Linus writes:
  "Pin control fixes for v4.19:
   - Two fixes for the Intel pin controllers than cause
     problems on laptops."

* tag 'pinctrl-v4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: intel: Do pin translation in other GPIO operations as well
  pinctrl: cannonlake: Fix gpio base for GPP-E

2 files changed, 64 insertions, 49 deletions

diff --git a/drivers/pinctrl/intel/pinctrl-cannonlake.c b/drivers/pinctrl/intel/pinctrl-cannonlake.c
index fb1afe5..8d48371 100644
--- a/drivers/pinctrl/intel/pinctrl-cannonlake.c
+++ b/drivers/pinctrl/intel/pinctrl-cannonlake.c
@@ -379,7 +379,7 @@ static const struct intel_padgroup cnlh_community1_gpps[] = {
 static const struct intel_padgroup cnlh_community3_gpps[] = {
 	CNL_GPP(0, 155, 178, 192),		/* GPP_K */
 	CNL_GPP(1, 179, 202, 224),		/* GPP_H */
-	CNL_GPP(2, 203, 215, 258),		/* GPP_E */
+	CNL_GPP(2, 203, 215, 256),		/* GPP_E */
 	CNL_GPP(3, 216, 239, 288),		/* GPP_F */
 	CNL_GPP(4, 240, 248, CNL_NO_GPIO),	/* SPI */
 };
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 62b009b..ec8dafc 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -747,13 +747,63 @@ static const struct pinctrl_desc intel_pinctrl_desc = {
 	.owner = THIS_MODULE,
 };
 
+/**
+ * intel_gpio_to_pin() - Translate from GPIO offset to pin number
+ * @pctrl: Pinctrl structure
+ * @offset: GPIO offset from gpiolib
+ * @commmunity: Community is filled here if not %NULL
+ * @padgrp: Pad group is filled here if not %NULL
+ *
+ * When coming through gpiolib irqchip, the GPIO offset is not
+ * automatically translated to pinctrl pin number. This function can be
+ * used to find out the corresponding pinctrl pin.
+ */
+static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned offset,
+			     const struct intel_community **community,
+			     const struct intel_padgroup **padgrp)
+{
+	int i;
+
+	for (i = 0; i < pctrl->ncommunities; i++) {
+		const struct intel_community *comm = &pctrl->communities[i];
+		int j;
+
+		for (j = 0; j < comm->ngpps; j++) {
+			const struct intel_padgroup *pgrp = &comm->gpps[j];
+
+			if (pgrp->gpio_base < 0)
+				continue;
+
+			if (offset >= pgrp->gpio_base &&
+			    offset < pgrp->gpio_base + pgrp->size) {
+				int pin;
+
+				pin = pgrp->base + offset - pgrp->gpio_base;
+				if (community)
+					*community = comm;
+				if (padgrp)
+					*padgrp = pgrp;
+
+				return pin;
+			}
+		}
+	}
+
+	return -EINVAL;
+}
+
 static int intel_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
 	struct intel_pinctrl *pctrl = gpiochip_get_data(chip);
 	void __iomem *reg;
 	u32 padcfg0;
+	int pin;
+
+	pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL);
+	if (pin < 0)
+		return -EINVAL;
 
-	reg = intel_get_padcfg(pctrl, offset, PADCFG0);
+	reg = intel_get_padcfg(pctrl, pin, PADCFG0);
 	if (!reg)
 		return -EINVAL;
 
@@ -770,8 +820,13 @@ static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	unsigned long flags;
 	void __iomem *reg;
 	u32 padcfg0;
+	int pin;
+
+	pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL);
+	if (pin < 0)
+		return;
 
-	reg = intel_get_padcfg(pctrl, offset, PADCFG0);
+	reg = intel_get_padcfg(pctrl, pin, PADCFG0);
 	if (!reg)
 		return;
 
@@ -790,8 +845,13 @@ static int intel_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
 	struct intel_pinctrl *pctrl = gpiochip_get_data(chip);
 	void __iomem *reg;
 	u32 padcfg0;
+	int pin;
 
-	reg = intel_get_padcfg(pctrl, offset, PADCFG0);
+	pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL);
+	if (pin < 0)
+		return -EINVAL;
+
+	reg = intel_get_padcfg(pctrl, pin, PADCFG0);
 	if (!reg)
 		return -EINVAL;
 
@@ -827,51 +887,6 @@ static const struct gpio_chip intel_gpio_chip = {
 	.set_config = gpiochip_generic_config,
 };
 
-/**
- * intel_gpio_to_pin() - Translate from GPIO offset to pin number
- * @pctrl: Pinctrl structure
- * @offset: GPIO offset from gpiolib
- * @commmunity: Community is filled here if not %NULL
- * @padgrp: Pad group is filled here if not %NULL
- *
- * When coming through gpiolib irqchip, the GPIO offset is not
- * automatically translated to pinctrl pin number. This function can be
- * used to find out the corresponding pinctrl pin.
- */
-static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned offset,
-			     const struct intel_community **community,
-			     const struct intel_padgroup **padgrp)
-{
-	int i;
-
-	for (i = 0; i < pctrl->ncommunities; i++) {
-		const struct intel_community *comm = &pctrl->communities[i];
-		int j;
-
-		for (j = 0; j < comm->ngpps; j++) {
-			const struct intel_padgroup *pgrp = &comm->gpps[j];
-
-			if (pgrp->gpio_base < 0)
-				continue;
-
-			if (offset >= pgrp->gpio_base &&
-			    offset < pgrp->gpio_base + pgrp->size) {
-				int pin;
-
-				pin = pgrp->base + offset - pgrp->gpio_base;
-				if (community)
-					*community = comm;
-				if (padgrp)
-					*padgrp = pgrp;
-
-				return pin;
-			}
-		}
-	}
-
-	return -EINVAL;
-}
-
 static int intel_gpio_irq_reqres(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);