Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-09-21 07:23:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

gpio: gpio-vf610: do not touch other bits when set the target bit

Browse Source 
For gpio controller contain register PDDR, when set one target bit,
current logic will clear all other bits, this is wrong. Use operator
'|=' to fix it.

Fixes: 659d8a6231 ("gpio: vf610: add imx7ulp support")
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Haibo Chen 2022-05-11 10:15:04 +08:00 committed by Bartosz Golaszewski
parent 42226c9897
commit 9bf3ac466f
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpio/gpio-vf610.c
View File

@ -125,9 +125,13 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
{
struct vf610_gpio_port *port = gpiochip_get_data(chip);
unsigned long mask = BIT(gpio);
u32 val;
if (port->sdata && port->sdata->have_paddr)
vf610_gpio_writel(mask, port->gpio_base + GPIO_PDDR);
if (port->sdata && port->sdata->have_paddr) {
val = vf610_gpio_readl(port->gpio_base + GPIO_PDDR);
val |= mask;
vf610_gpio_writel(val, port->gpio_base + GPIO_PDDR);
}
vf610_gpio_set(chip, gpio, value);