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scsi: ufs: Allow regulators being always-on
Introduce a flag "always_on" in struct ufs_vreg to allow vendors to keep the regulator always-on. Link: https://lore.kernel.org/r/20201207054955.24366-2-stanley.chu@mediatek.com Reviewed-by: Andy Teng <andy.teng@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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2 changed files with 2 additions and 1 deletions
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@ -512,6 +512,7 @@ struct ufs_query_res {
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struct ufs_vreg {
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struct regulator *reg;
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const char *name;
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bool always_on;
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bool enabled;
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int min_uV;
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int max_uV;
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@ -8012,7 +8012,7 @@ static int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg)
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{
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int ret = 0;
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if (!vreg || !vreg->enabled)
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if (!vreg || !vreg->enabled || vreg->always_on)
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goto out;
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ret = regulator_disable(vreg->reg);
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