diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0534-gpio-bcm-virt-Fix-the-get-method.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0534-gpio-bcm-virt-Fix-the-get-method.patch | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0534-gpio-bcm-virt-Fix-the-get-method.patch b/target/linux/bcm27xx/patches-5.15/950-0534-gpio-bcm-virt-Fix-the-get-method.patch deleted file mode 100644 index 9c12ff483a..0000000000 --- a/target/linux/bcm27xx/patches-5.15/950-0534-gpio-bcm-virt-Fix-the-get-method.patch +++ /dev/null @@ -1,29 +0,0 @@ -From 6e6d30ab723843fea8d9df368b35e89327f33c11 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.com> -Date: Tue, 19 Oct 2021 11:23:43 +0100 -Subject: [PATCH] gpio: bcm-virt: Fix the get() method - -The get() method does not understand the on-the-wire encoding of the -remote GPIO states, thinking they are simple on/off bits when they are -really pairs of 16-bit counts. Rewrite the get() handler to return the -value last written, which will eventually match the actual GPIO state -if there are no other changes. - -See: https://github.com/raspberrypi/linux/issues/4638 - -Signed-off-by: Phil Elwell <phil@raspberrypi.com> ---- - drivers/gpio/gpio-bcm-virt.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/drivers/gpio/gpio-bcm-virt.c -+++ b/drivers/gpio/gpio-bcm-virt.c -@@ -49,7 +49,7 @@ static int brcmvirt_gpio_get(struct gpio - unsigned v; - gpio = container_of(gc, struct brcmvirt_gpio, gc); - v = readl(gpio->ts_base + off); -- return (v >> off) & 1; -+ return (s16)((v >> 16) - v) > 0; - } - - static void brcmvirt_gpio_set(struct gpio_chip *gc, unsigned off, int val) |