diff options
| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-08-21 10:54:34 +0200 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-08-21 19:07:07 +0200 |
| commit | 8299d1f057439f94c6a4412e2e5c5082b82a30c9 (patch) | |
| tree | 1bf678d61f11f7394493be464c7876e496f7faed /target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch | |
| parent | 33b6885975ce376ff075362b7f0890326043111b (diff) | |
| download | upstream-8299d1f057439f94c6a4412e2e5c5082b82a30c9.tar.gz upstream-8299d1f057439f94c6a4412e2e5c5082b82a30c9.tar.bz2 upstream-8299d1f057439f94c6a4412e2e5c5082b82a30c9.zip | |
bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch b/target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch new file mode 100644 index 0000000000..a8aa6fe882 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch @@ -0,0 +1,57 @@ +From a8d5d1b7fbc78132f5def4b8af4f221df83df04e Mon Sep 17 00:00:00 2001 +From: Nick Bulleid <nedbulleid@fastmail.com> +Date: Thu, 10 May 2018 21:57:02 +0100 +Subject: [PATCH] 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(+) + +--- 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: + +--- a/drivers/power/reset/gpio-poweroff.c ++++ b/drivers/power/reset/gpio-poweroff.c +@@ -51,6 +51,7 @@ static int gpio_poweroff_probe(struct pl + 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"); +@@ -76,6 +77,12 @@ static int gpio_poweroff_probe(struct pl + 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; + } +@@ -85,6 +92,8 @@ static int gpio_poweroff_remove(struct p + if (pm_power_off == &gpio_poweroff_do_poweroff) + pm_power_off = NULL; + ++ gpiod_unexport(reset_gpio); ++ + return 0; + } + |