6.15-stable review patch. If anyone has any objections, please let me know.
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From: Abel Vesa abel.vesa@linaro.org
[ Upstream commit 202ac22b8e2e015e6c196fd8113f3d2a62dd1afc ]
On some Dell XPS 13 (9345) variants, the battery used is lithium-polymer based. Currently, this is reported as unknown technology due to the entry missing.
[ 4083.135325] Unknown battery technology 'LIP'
Add another check for lithium-polymer in the technology parsing callback and return that instead of unknown.
Signed-off-by: Abel Vesa abel.vesa@linaro.org Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@oss.qualcomm.com Link: https://lore.kernel.org/r/20250523-psy-qcom-battmgr-add-lipo-entry-v1-1-938c... Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/supply/qcom_battmgr.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c index fe27676fbc7c..2d50830610e9 100644 --- a/drivers/power/supply/qcom_battmgr.c +++ b/drivers/power/supply/qcom_battmgr.c @@ -981,6 +981,8 @@ static unsigned int qcom_battmgr_sc8280xp_parse_technology(const char *chemistry { if (!strncmp(chemistry, "LIO", BATTMGR_CHEMISTRY_LEN)) return POWER_SUPPLY_TECHNOLOGY_LION; + if (!strncmp(chemistry, "LIP", BATTMGR_CHEMISTRY_LEN)) + return POWER_SUPPLY_TECHNOLOGY_LIPO;
pr_err("Unknown battery technology '%s'\n", chemistry); return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;