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gpio: loongson: Fix Loongson-2K2000 ACPI GPIO register offset

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BugLink: https://bugs.launchpad.net/bugs/2106770

commit e59f4c97172de0c302894cfd5616161c1f0c4d85 upstream.

Since commit 3feb70a617 ("gpio: loongson: add more gpio chip
support"), the Loongson-2K2000 GPIO is supported.

However, according to the firmware development specification, the
Loongson-2K2000 ACPI GPIO register offsets in the driver do not match
the register base addresses in the firmware, resulting in the registers
not being accessed properly.

Now, we fix it to ensure the GPIO function works properly.

Cc: stable@vger.kernel.org
Cc: Yinbo Zhu <zhuyinbo@loongson.cn>
Fixes: 3feb70a617 ("gpio: loongson: add more gpio chip support")
Co-developed-by: Hongliang Wang <wanghongliang@loongson.cn>
Signed-off-by: Hongliang Wang <wanghongliang@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/20250107103856.1037222-1-zhoubinbin@loongson.cn
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Binbin Zhou
2025-01-07 18:38:56 +08:00
committed by Mehmet Basaran
parent 24d8aa5507
commit 0f774cebcd
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpio/gpio-loongson-64bit.c
+3 -3
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@@ -237,9 +237,9 @@ static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data1 = {
static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data2 = {
.label = "ls2k2000_gpio",
.mode = BIT_CTRL_MODE,
.conf_offset = 0x84,
.in_offset = 0x88,
.out_offset = 0x80,
.conf_offset = 0x4,
.in_offset = 0x8,
.out_offset = 0x0,
};
static const struct loongson_gpio_chip_data loongson_gpio_ls3a5000_data = {