diff options
| author | Stefan Wahren <wahrenst@gmx.net> | 2024-06-03 20:19:37 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2024-06-17 09:49:36 +0200 |
| commit | 61fef29ad120d3077aeb0ef598d76822acb8c4cb (patch) | |
| tree | b8b6790dc5a3f2d509bfa18244a01639c104eb58 | |
| parent | 03ecbe4bb61886cc7fff5b0efc3784e86ac16214 (diff) | |
| download | linux-stable-61fef29ad120d3077aeb0ef598d76822acb8c4cb.tar.gz linux-stable-61fef29ad120d3077aeb0ef598d76822acb8c4cb.tar.bz2 linux-stable-61fef29ad120d3077aeb0ef598d76822acb8c4cb.zip | |
pinctrl: bcm2835: Fix permissions of persist_gpio_outputs
The commit 8ff05989b44e ("pinctrl: bcm2835: Make pin freeing behavior
configurable") unintentionally made the module parameter
persist_gpio_outputs changeable at runtime. So drop the write permission
in order to make the freeing behavior predictable for user applications.
Fixes: 8ff05989b44e ("pinctrl: bcm2835: Make pin freeing behavior configurable")
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Closes: https://lore.kernel.org/linux-gpio/Zjk-C0nLmlynqLAE@surfacebook.localdomain/
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240603181938.76047-2-wahrenst@gmx.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 7178a38475cc..27fd54795791 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -245,7 +245,7 @@ static const char * const irq_type_names[] = { }; static bool persist_gpio_outputs; -module_param(persist_gpio_outputs, bool, 0644); +module_param(persist_gpio_outputs, bool, 0444); MODULE_PARM_DESC(persist_gpio_outputs, "Enable GPIO_OUT persistence when pin is freed"); static inline u32 bcm2835_gpio_rd(struct bcm2835_pinctrl *pc, unsigned reg) |