[source] ipq806x: add usb pins to r7800 dts file
LEDE Commits
lede-commits at lists.infradead.org
Sun Aug 21 22:43:19 PDT 2016
blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=00516611bd8324a2ab0781ad419e9ea11b3713f3
commit 00516611bd8324a2ab0781ad419e9ea11b3713f3
Author: John Crispin <john at phrozen.org>
AuthorDate: Mon Aug 15 22:54:23 2016 +0200
ipq806x: add usb pins to r7800 dts file
Signed-off-by: John Crispin <john at phrozen.org>
---
.../files/arch/arm/boot/dts/qcom-ipq8064-r7800.dts | 17 +++
.../802-GPIO-add-named-gpio-exports.patch | 166 +++++++++++++++++++++
2 files changed, 183 insertions(+)
diff --git a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7800.dts b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7800.dts
index 2916e7e..52ca92a 100644
--- a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7800.dts
+++ b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7800.dts
@@ -365,6 +365,23 @@
gpios = <&qcom_pinmux 67 0>;
};
};
+
+ gpio_export {
+ compatible = "gpio-export";
+ #size-cells = <0>;
+
+ display_data {
+ gpio-export,name = "usb0";
+ gpio-export,output = <1>;
+ gpios = <&qcom_pinmux 15 0>;
+ };
+
+ display_clock {
+ gpio-export,name = "usb1";
+ gpio-export,output = <1>;
+ gpios = <&qcom_pinmux 16 0>;
+ };
+ };
};
&adm_dma {
diff --git a/target/linux/ipq806x/patches-4.4/802-GPIO-add-named-gpio-exports.patch b/target/linux/ipq806x/patches-4.4/802-GPIO-add-named-gpio-exports.patch
new file mode 100644
index 0000000..cfdab76
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/802-GPIO-add-named-gpio-exports.patch
@@ -0,0 +1,166 @@
+From 4267880319bc1a2270d352e0ded6d6386242a7ef Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic at openwrt.org>
+Date: Tue, 12 Aug 2014 20:49:27 +0200
+Subject: [PATCH 24/53] GPIO: add named gpio exports
+
+Signed-off-by: John Crispin <blogic at openwrt.org>
+---
+ drivers/gpio/gpiolib-of.c | 68 +++++++++++++++++++++++++++++++++++++++++
+ drivers/gpio/gpiolib-sysfs.c | 10 +++++-
+ include/asm-generic/gpio.h | 6 ++++
+ include/linux/gpio/consumer.h | 8 +++++
+ 4 files changed, 91 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpio/gpiolib-of.c
++++ b/drivers/gpio/gpiolib-of.c
+@@ -23,6 +23,8 @@
+ #include <linux/pinctrl/pinctrl.h>
+ #include <linux/slab.h>
+ #include <linux/gpio/machine.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
+
+ #include "gpiolib.h"
+
+@@ -450,3 +452,69 @@ void of_gpiochip_remove(struct gpio_chip
+ gpiochip_remove_pin_ranges(chip);
+ of_node_put(chip->of_node);
+ }
++
++static struct of_device_id gpio_export_ids[] = {
++ { .compatible = "gpio-export" },
++ { /* sentinel */ }
++};
++
++static int __init of_gpio_export_probe(struct platform_device *pdev)
++{
++ struct device_node *np = pdev->dev.of_node;
++ struct device_node *cnp;
++ u32 val;
++ int nb = 0;
++
++ for_each_child_of_node(np, cnp) {
++ const char *name = NULL;
++ int gpio;
++ bool dmc;
++ int max_gpio = 1;
++ int i;
++
++ of_property_read_string(cnp, "gpio-export,name", &name);
++
++ if (!name)
++ max_gpio = of_gpio_count(cnp);
++
++ for (i = 0; i < max_gpio; i++) {
++ unsigned flags = 0;
++ enum of_gpio_flags of_flags;
++
++ gpio = of_get_gpio_flags(cnp, i, &of_flags);
++
++ if (of_flags == OF_GPIO_ACTIVE_LOW)
++ flags |= GPIOF_ACTIVE_LOW;
++
++ if (!of_property_read_u32(cnp, "gpio-export,output", &val))
++ flags |= val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW;
++ else
++ flags |= GPIOF_IN;
++
++ if (devm_gpio_request_one(&pdev->dev, gpio, flags, name ? name : of_node_full_name(np)))
++ continue;
++
++ dmc = of_property_read_bool(cnp, "gpio-export,direction_may_change");
++ gpio_export_with_name(gpio, dmc, name);
++ nb++;
++ }
++ }
++
++ dev_info(&pdev->dev, "%d gpio(s) exported\n", nb);
++
++ return 0;
++}
++
++static struct platform_driver gpio_export_driver = {
++ .driver = {
++ .name = "gpio-export",
++ .owner = THIS_MODULE,
++ .of_match_table = of_match_ptr(gpio_export_ids),
++ },
++};
++
++static int __init of_gpio_export_init(void)
++{
++ return platform_driver_probe(&gpio_export_driver, of_gpio_export_probe);
++}
++device_initcall(of_gpio_export_init);
+--- a/drivers/gpio/gpiolib-sysfs.c
++++ b/drivers/gpio/gpiolib-sysfs.c
+@@ -544,7 +544,7 @@ static struct class gpio_class = {
+ *
+ * Returns zero on success, else an error.
+ */
+-int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
++int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name)
+ {
+ struct gpio_chip *chip;
+ struct gpiod_data *data;
+@@ -604,6 +604,8 @@ int gpiod_export(struct gpio_desc *desc,
+ offset = gpio_chip_hwgpio(desc);
+ if (chip->names && chip->names[offset])
+ ioname = chip->names[offset];
++ if (name)
++ ioname = name;
+
+ dev = device_create_with_groups(&gpio_class, chip->dev,
+ MKDEV(0, 0), data, gpio_groups,
+@@ -625,6 +627,12 @@ err_unlock:
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
+ return status;
+ }
++EXPORT_SYMBOL_GPL(__gpiod_export);
++
++int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
++{
++ return __gpiod_export(desc, direction_may_change, NULL);
++}
+ EXPORT_SYMBOL_GPL(gpiod_export);
+
+ static int match_export(struct device *dev, const void *desc)
+--- a/include/asm-generic/gpio.h
++++ b/include/asm-generic/gpio.h
+@@ -122,6 +122,12 @@ static inline int gpio_export(unsigned g
+ return gpiod_export(gpio_to_desc(gpio), direction_may_change);
+ }
+
++int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name);
++static inline int gpio_export_with_name(unsigned gpio, bool direction_may_change, const char *name)
++{
++ return __gpiod_export(gpio_to_desc(gpio), direction_may_change, name);
++}
++
+ static inline int gpio_export_link(struct device *dev, const char *name,
+ unsigned gpio)
+ {
+--- a/include/linux/gpio/consumer.h
++++ b/include/linux/gpio/consumer.h
+@@ -427,6 +427,7 @@ static inline struct gpio_desc *devm_get
+
+ #if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
+
++int _gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name);
+ int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
+ int gpiod_export_link(struct device *dev, const char *name,
+ struct gpio_desc *desc);
+@@ -434,6 +435,13 @@ void gpiod_unexport(struct gpio_desc *de
+
+ #else /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
+
++static inline int _gpiod_export(struct gpio_desc *desc,
++ bool direction_may_change,
++ const char *name)
++{
++ return -ENOSYS;
++}
++
+ static inline int gpiod_export(struct gpio_desc *desc,
+ bool direction_may_change)
+ {
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