Hi, Ruoyao,
-----原始邮件----- 发件人: "Xi Ruoyao" xry111@xry111.site 发送时间:2025-12-30 10:01:04 (星期二) 收件人: stable@vger.kernel.org 抄送: "Xi Ruoyao" xry111@xry111.site, "Huacai Chen" chenhuacai@loongson.cn, "Bartosz Golaszewski" bartosz.golaszewski@linaro.org 主题: [PATCH 6.12.y] gpio: loongson: Switch 2K2000/3000 GPIO to BYTE_CTRL_MODE
The manuals of 2K2000 says both BIT_CTRL_MODE and BYTE_CTRL_MODE are supported but the latter is recommended. Also on 2K3000, per the ACPI DSDT the GPIO controller is compatible with 2K2000, but it fails to operate GPIOs 62 and 63 (and maybe others) using BIT_CTRL_MODE. Using BYTE_CTRL_MODE also makes those 2K3000 GPIOs work.
Fixes: 3feb70a61740 ("gpio: loongson: add more gpio chip support") Cc: stable@vger.kernel.org Signed-off-by: Xi Ruoyao xry111@xry111.site Reviewed-by: Huacai Chen chenhuacai@loongson.cn Link: https://lore.kernel.org/r/20251128075033.255821-1-xry111@xry111.site Signed-off-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org (cherry picked from commit dae9750105cf93ac1e156ef91f4beeb53bd64777) [Removed inten_offset as 6.12 has no 2K2000/3000 GPIO interrupt support.]
I prefer to backport "gpio: loongson-64bit: Extend GPIO irq support" as a dependency.
Huacai
Signed-off-by: Xi Ruoyao xry111@xry111.site
drivers/gpio/gpio-loongson-64bit.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpio-loongson-64bit.c b/drivers/gpio/gpio-loongson-64bit.c index 7f4d78fd800e..11915898a93d 100644 --- a/drivers/gpio/gpio-loongson-64bit.c +++ b/drivers/gpio/gpio-loongson-64bit.c @@ -228,10 +228,10 @@ static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data0 = { static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data1 = { .label = "ls2k2000_gpio",
- .mode = BIT_CTRL_MODE,
- .conf_offset = 0x0,
- .in_offset = 0x20,
- .out_offset = 0x10,
- .mode = BYTE_CTRL_MODE,
- .conf_offset = 0x800,
- .in_offset = 0xa00,
- .out_offset = 0x900,
}; static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data2 = { -- 2.52.0
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