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gpio-f7188x: Add support for NCT6126D version B

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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: 3002b8642f ("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>
This commit is contained in:
Paul Louvel 2026-06-29 16:07:02 +02:00 committed by Bartosz Golaszewski
parent 2ed2e359de
commit 9a6c0b6ea1
1 changed files with 4 additions and 2 deletions
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6
drivers/gpio/gpio-f7188x.c
View File

@ -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;