6.12-stable review patch. If anyone has any objections, please let me know.
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From: Armin Wolf W_Armin@gmx.de
[ Upstream commit 7a248294a3145bc65eb0d8980a0a8edbb1b92db4 ]
On the Dell Inspiron 3505 the battery temperature is always 0.1 degrees larger than the temperature show inside the OEM application.
Emulate this behaviour to avoid showing strange looking values like 29.1 degrees.
Fixes: 0331b1b0ba653 ("platform/x86: dell-ddv: Fix temperature scaling") Signed-off-by: Armin Wolf W_Armin@gmx.de Reviewed-by: Sebastian Reichel sebastian.reichel@collabora.com Link: https://lore.kernel.org/r/20250305053009.378609-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/dell/dell-wmi-ddv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/dell/dell-wmi-ddv.c b/drivers/platform/x86/dell/dell-wmi-ddv.c index e75cd6e1efe6a..ab5f7d3ab8249 100644 --- a/drivers/platform/x86/dell/dell-wmi-ddv.c +++ b/drivers/platform/x86/dell/dell-wmi-ddv.c @@ -665,8 +665,10 @@ static ssize_t temp_show(struct device *dev, struct device_attribute *attr, char if (ret < 0) return ret;
- /* Use 2731 instead of 2731.5 to avoid unnecessary rounding */ - return sysfs_emit(buf, "%d\n", value - 2731); + /* Use 2732 instead of 2731.5 to avoid unnecessary rounding and to emulate + * the behaviour of the OEM application which seems to round down the result. + */ + return sysfs_emit(buf, "%d\n", value - 2732); }
static ssize_t eppid_show(struct device *dev, struct device_attribute *attr, char *buf)