diff options
| author | Sen Chu <sen.chu@mediatek.com> | 2023-05-18 12:06:46 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-05-18 19:24:47 +0900 |
| commit | a511637502b1caa135046d0f8fdabd55a31af8ef (patch) | |
| tree | 6dc30fc25f6851dfa5217356c48f0896135c096f /drivers/regulator/mt6359-regulator.c | |
| parent | 2bf1c45be3b8f3a3f898d0756c1282f09719debd (diff) | |
| download | linux-stable-a511637502b1caa135046d0f8fdabd55a31af8ef.tar.gz linux-stable-a511637502b1caa135046d0f8fdabd55a31af8ef.tar.bz2 linux-stable-a511637502b1caa135046d0f8fdabd55a31af8ef.zip | |
regulator: mt6359: add read check for PMIC MT6359
Add hardware version read check for PMIC MT6359
Signed-off-by: Sen Chu <sen.chu@mediatek.com
Fixes: 4cfc96547512 ("regulator: mt6359: Add support for MT6359P regulator")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com
Link: https://lore.kernel.org/r/20230518040646.8730-1-sen.chu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org
Diffstat (limited to 'drivers/regulator/mt6359-regulator.c')
| -rw-r--r-- | drivers/regulator/mt6359-regulator.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/regulator/mt6359-regulator.c b/drivers/regulator/mt6359-regulator.c index 1849566784ab..3eb86ec21d08 100644 --- a/drivers/regulator/mt6359-regulator.c +++ b/drivers/regulator/mt6359-regulator.c @@ -951,9 +951,12 @@ static int mt6359_regulator_probe(struct platform_device *pdev) struct regulator_config config = {}; struct regulator_dev *rdev; struct mt6359_regulator_info *mt6359_info; - int i, hw_ver; + int i, hw_ver, ret; + + ret = regmap_read(mt6397->regmap, MT6359P_HWCID, &hw_ver); + if (ret) + return ret; - regmap_read(mt6397->regmap, MT6359P_HWCID, &hw_ver); if (hw_ver >= MT6359P_CHIP_VER) mt6359_info = mt6359p_regulators; else |