diff options
| author | Paul Louvel <paul.louvel@bootlin.com> | 2026-06-29 16:07:02 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> | 2026-06-30 09:48:39 +0200 |
| commit | 9a6c0b6ea12746d50cf53d59a7e05fd83f974bda (patch) | |
| tree | 0e6fc6af2714c4c17dd79de0ae9d56cce08cf8af /drivers/gpio | |
| parent | 2ed2e359dea752e7758d29a423033031a0b96584 (diff) | |
gpio-f7188x: Add support for NCT6126D version B
The Nuvoton NCT6126D Super-I/O is available in two hardware revisions.
According to the manufacturer datasheet revision 2.4, version A reports
chip ID 0xD283, while version B reports chip ID 0xD284.
The driver currently only recognizes only the version A ID. Version B
only contains hardware fixes unrelated to the GPIO functionality, so it
can be supported by simply adding its chip ID without any other driver
changes.
Fixes: 3002b8642f01 ("gpio-f7188x: fix chip name and pin count on Nuvoton chip")
Cc: stable@vger.kernel.org
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Link: https://patch.msgid.link/20260629-gpio-f7188x-nct6126d-version-b-v1-1-a06226c02a2d@bootlin.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-f7188x.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c index 4d5b927ad70f..fb007b978729 100644 --- a/drivers/gpio/gpio-f7188x.c +++ b/drivers/gpio/gpio-f7188x.c @@ -48,7 +48,8 @@ /* * Nuvoton devices. */ -#define SIO_NCT6126D_ID 0xD283 /* NCT6126D chipset ID */ +#define SIO_NCT6126D_VER_A_ID 0xD283 /* NCT6126D version A chipset ID */ +#define SIO_NCT6126D_VER_B_ID 0xD284 /* NCT6126D version B chipset ID */ #define SIO_LD_GPIO_NUVOTON 0x07 /* GPIO logical device */ @@ -564,7 +565,8 @@ static int __init f7188x_find(int addr, struct f7188x_sio *sio) case SIO_F81865_ID: sio->type = f81865; break; - case SIO_NCT6126D_ID: + case SIO_NCT6126D_VER_A_ID: + case SIO_NCT6126D_VER_B_ID: sio->device = SIO_LD_GPIO_NUVOTON; sio->type = nct6126d; break; |