X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fgpio%2Fbcm2835_gpio.c;h=f4b67f1cf0aff523a19bcaf6bcf64833f0c1abca;hb=abdbefba2a4e9666f798de13b4b88021f23b19f3;hp=cd5480ee0940f1ea1443217fbae1e7a8ceed283b;hpb=4faf5f93c61632c18e435dc6a190b30893786a10;p=oweals%2Fu-boot.git

diff --git a/drivers/gpio/bcm2835_gpio.c b/drivers/gpio/bcm2835_gpio.c
index cd5480ee09..f4b67f1cf0 100644
--- a/drivers/gpio/bcm2835_gpio.c
+++ b/drivers/gpio/bcm2835_gpio.c
@@ -1,12 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Vikram Narayananan
  * <vikram186@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 #include <dm.h>
+#include <dm/pinctrl.h>
 #include <errno.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
@@ -14,6 +14,7 @@
 
 struct bcm2835_gpios {
 	struct bcm2835_gpio_regs *reg;
+	struct udevice *pinctrl;
 };
 
 static int bcm2835_gpio_direction_input(struct udevice *dev, unsigned gpio)
@@ -29,7 +30,7 @@ static int bcm2835_gpio_direction_input(struct udevice *dev, unsigned gpio)
 	return 0;
 }
 
-static int bcm2835_gpio_direction_output(struct udevice *dev, unsigned gpio,
+static int bcm2835_gpio_direction_output(struct udevice *dev, unsigned int gpio,
 					 int value)
 {
 	struct bcm2835_gpios *gpios = dev_get_priv(dev);
@@ -73,19 +74,12 @@ static int bcm2835_gpio_set_value(struct udevice *dev, unsigned gpio,
 	return 0;
 }
 
-int bcm2835_gpio_get_func_id(struct udevice *dev, unsigned gpio)
-{
-	struct bcm2835_gpios *gpios = dev_get_priv(dev);
-	u32 val;
-
-	val = readl(&gpios->reg->gpfsel[BCM2835_GPIO_FSEL_BANK(gpio)]);
-
-	return (val >> BCM2835_GPIO_FSEL_SHIFT(gpio) & BCM2835_GPIO_FSEL_MASK);
-}
-
 static int bcm2835_gpio_get_function(struct udevice *dev, unsigned offset)
 {
-	int funcid = bcm2835_gpio_get_func_id(dev, offset);
+	struct bcm2835_gpios *priv = dev_get_priv(dev);
+	int funcid;
+
+	funcid = pinctrl_get_gpio_mux(priv->pinctrl, 0, offset);
 
 	switch (funcid) {
 	case BCM2835_GPIO_OUTPUT:
@@ -97,7 +91,6 @@ static int bcm2835_gpio_get_function(struct udevice *dev, unsigned offset)
 	}
 }
 
-
 static const struct dm_gpio_ops gpio_bcm2835_ops = {
 	.direction_input	= bcm2835_gpio_direction_input,
 	.direction_output	= bcm2835_gpio_direction_output,
@@ -116,21 +109,19 @@ static int bcm2835_gpio_probe(struct udevice *dev)
 	uc_priv->gpio_count = BCM2835_GPIO_COUNT;
 	gpios->reg = (struct bcm2835_gpio_regs *)plat->base;
 
+	/* We know we're spawned by the pinctrl driver */
+	gpios->pinctrl = dev->parent;
+
 	return 0;
 }
 
 #if CONFIG_IS_ENABLED(OF_CONTROL)
-static const struct udevice_id bcm2835_gpio_id[] = {
-	{.compatible = "brcm,bcm2835-gpio"},
-	{}
-};
-
 static int bcm2835_gpio_ofdata_to_platdata(struct udevice *dev)
 {
 	struct bcm2835_gpio_platdata *plat = dev_get_platdata(dev);
 	fdt_addr_t addr;
 
-	addr = dev_get_addr(dev);
+	addr = devfdt_get_addr(dev);
 	if (addr == FDT_ADDR_T_NONE)
 		return -EINVAL;
 
@@ -142,7 +133,6 @@ static int bcm2835_gpio_ofdata_to_platdata(struct udevice *dev)
 U_BOOT_DRIVER(gpio_bcm2835) = {
 	.name	= "gpio_bcm2835",
 	.id	= UCLASS_GPIO,
-	.of_match = of_match_ptr(bcm2835_gpio_id),
 	.ofdata_to_platdata = of_match_ptr(bcm2835_gpio_ofdata_to_platdata),
 	.platdata_auto_alloc_size = sizeof(struct bcm2835_gpio_platdata),
 	.ops	= &gpio_bcm2835_ops,