From ae28532aff1f7912c1d118b4257c095ce62f1cb0 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 17 Nov 2024 07:55:32 -0800 Subject: [PATCH] hwmon: (spd5118) Name chips taking the specification literally The Renesas/IDT SPD5118 Hub Controller is known to take the specification literally and does not permit access to volatile registers except for the page register if the selected page is non-zero. Explicitly name the chip to ensure that the information does not get lost. Signed-off-by: Guenter Roeck --- drivers/hwmon/spd5118.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/spd5118.c b/drivers/hwmon/spd5118.c index 02eb21684c3a6..c5ad06b90cbf4 100644 --- a/drivers/hwmon/spd5118.c +++ b/drivers/hwmon/spd5118.c @@ -621,7 +621,8 @@ static int spd5118_i2c_init(struct i2c_client *client) * If the device type registers return 0, it is possible that the chip * has a non-zero page selected and takes the specification literally, * i.e. disables access to volatile registers besides the page register - * if the page is not 0. Try to identify such chips. + * if the page is not 0. The Renesas/ITD SPD5118 Hub Controller is known + * to show this behavior. Try to identify such chips. */ if (!regval) { /* Vendor ID registers must also be 0 */ -- 2.47.2