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-rw-rw-r--r--'>sys-kernel/boest-v5.0.15/raspberrypi/0125-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch61
1 files changed, 61 insertions, 0 deletions
diff --git a/sys-kernel/boest-v5.0.15/raspberrypi/0125-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch b/sys-kernel/boest-v5.0.15/raspberrypi/0125-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch
new file mode 100644
index 00000000..e31b7646
--- /dev/null
+++ b/sys-kernel/boest-v5.0.15/raspberrypi/0125-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch
@@ -0,0 +1,61 @@
+From d9de3e46666ad0753daea2c574a4906837ef0f29 Mon Sep 17 00:00:00 2001
+From: Nick Bulleid <nedbulleid@fastmail.com>
+Date: Thu, 10 May 2018 21:57:02 +0100
+Subject: [PATCH 125/194] Add ability to export gpio used by gpio-poweroff
+
+Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
+
+Added export feature to gpio-poweroff documentation
+
+Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
+---
+ .../devicetree/bindings/power/reset/gpio-poweroff.txt | 1 +
+ drivers/power/reset/gpio-poweroff.c | 9 +++++++++
+ 2 files changed, 10 insertions(+)
+
+diff --git a/Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt b/Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt
+index 3e56c1b34a4c..76dd7b06e26a 100644
+--- a/Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt
++++ b/Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt
+@@ -31,6 +31,7 @@ Optional properties:
+ - inactive-delay-ms: Delay (default 100) to wait after driving gpio inactive
+ - timeout-ms: Time to wait before asserting a WARN_ON(1). If nothing is
+ specified, 3000 ms is used.
++- export : Export the GPIO line to the sysfs system
+
+ Examples:
+
+diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c
+index 365960c43b47..a3f25129bad2 100644
+--- a/drivers/power/reset/gpio-poweroff.c
++++ b/drivers/power/reset/gpio-poweroff.c
+@@ -55,6 +55,7 @@ static int gpio_poweroff_probe(struct platform_device *pdev)
+ bool input = false;
+ enum gpiod_flags flags;
+ bool force = false;
++ bool export = false;
+
+ /* If a pm_power_off function has already been added, leave it alone */
+ force = of_property_read_bool(pdev->dev.of_node, "force");
+@@ -80,6 +81,12 @@ static int gpio_poweroff_probe(struct platform_device *pdev)
+ if (IS_ERR(reset_gpio))
+ return PTR_ERR(reset_gpio);
+
++ export = of_property_read_bool(pdev->dev.of_node, "export");
++ if (export) {
++ gpiod_export(reset_gpio, false);
++ gpiod_export_link(&pdev->dev, "poweroff-gpio", reset_gpio);
++ }
++
+ pm_power_off = &gpio_poweroff_do_poweroff;
+ return 0;
+ }
+@@ -89,6 +96,8 @@ static int gpio_poweroff_remove(struct platform_device *pdev)
+ if (pm_power_off == &gpio_poweroff_do_poweroff)
+ pm_power_off = NULL;
+
++ gpiod_unexport(reset_gpio);
++
+ return 0;
+ }
+