evie/android_kernel_oneplus_msm8998
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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>
This commit is contained in:
Asutosh Das 2017-02-10 09:58:55 +05:30
parent c1c02eecad
commit fd9bba4caa
1 changed files with 8 additions and 0 deletions
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8
drivers/phy/phy-qcom-ufs.c
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@ -267,6 +267,14 @@ static int __ufs_qcom_phy_init_vreg(struct phy *phy,
char prop_name[MAX_PROP_NAME]; 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 optional ? err : -ENODATA;
}
}
vreg->name = kstrdup(name, GFP_KERNEL); vreg->name = kstrdup(name, GFP_KERNEL);
if (!vreg->name) { if (!vreg->name) {
err = -ENOMEM; err = -ENOMEM;