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hwmon (it87): Fix voltage scaling for chips with 10.9mV ADCs 

[ Upstream commit 968b66ffeb ]

Fix voltage scaling for chips that have 10.9mV ADCs, where scaling was
not performed.

Fixes: ead8080351 ("hwmon: (it87) Add support for IT8732F")
Signed-off-by: Frank Crawford <frank@crawford.emu.id.au>
Link: https://lore.kernel.org/r/20230318080543.1226700-2-frank@crawford.emu.id.au
[groeck: Update subject and description to focus on bug fix]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Frank Crawford 2023-03-18 19:05:42 +11:00 committed by Greg Kroah-Hartman
parent f326376896
commit 682938af0a
1 changed files with 3 additions and 1 deletions
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4
drivers/hwmon/it87.c
View File

@ -486,6 +486,8 @@ static const struct it87_devices it87_devices[] = {
#define has_pwm_freq2(data) ((data)->features & FEAT_PWM_FREQ2)
#define has_six_temp(data) ((data)->features & FEAT_SIX_TEMP)
#define has_vin3_5v(data) ((data)->features & FEAT_VIN3_5V)
#define has_scaling(data) ((data)->features & (FEAT_12MV_ADC | \
FEAT_10_9MV_ADC))
struct it87_sio_data {
int sioaddr;
@ -3098,7 +3100,7 @@ static int it87_probe(struct platform_device *pdev)
"Detected broken BIOS defaults, disabling PWM interface\n");
/* Starting with IT8721F, we handle scaling of internal voltages */
if (has_12mv_adc(data)) {
if (has_scaling(data)) {
if (sio_data->internal & BIT(0))
data->in_scaled |= BIT(3); /* in3 is AVCC */
if (sio_data->internal & BIT(1))