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phy: qcom-ufs: parse ref-clk details prior to resource request

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Do not request a resource if the ref clk regulator details are
not defined in ufs phy node.

Change-Id: I10eb426d4407388681340cb71fe9e761794dc298
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
[cang@codeaurora.org: resolved trivial merge conflicts]
Signed-off-by: Can Guo <cang@codeaurora.org>
This commit is contained in:
Can Guo 2019-08-20 00:56:46 -07:00
commit d44fa17860
1 changed files with 8 additions and 0 deletions
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8
drivers/phy/qualcomm/phy-qcom-ufs.c
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@ -228,6 +228,14 @@ static int ufs_qcom_phy_init_vreg(struct device *dev,
char prop_name[MAX_PROP_NAME];
if (dev->of_node) {
snprintf(prop_name, MAX_PROP_NAME, "%s-supply", name);
if (!of_parse_phandle(dev->of_node, prop_name, 0)) {
dev_dbg(dev, "No vreg data found for %s\n", prop_name);
return -ENODATA;
}
}
vreg->name = name;
vreg->reg = devm_regulator_get(dev, name);
if (IS_ERR(vreg->reg)) {