[PATCH] phy: qcom-ufs: Don't return error if fail to get optional resource

From: Axel Lin
Date: Mon Mar 23 2015 - 00:08:34 EST


"dev_ref_clk_ctrl_mem" is optional resource, so don't return error if fail to
get the resource. Since it's an optional resource, don't emit error if
fail to get dev_ref_clk_ctrl_mem.

Also remove redundant test for res, it's done by devm_ioremap_resource().

Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/phy/phy-qcom-ufs.c | 23 +++--------------------
1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c
index 7f0ad81..73799f8 100644
--- a/drivers/phy/phy-qcom-ufs.c
+++ b/drivers/phy/phy-qcom-ufs.c
@@ -134,40 +134,23 @@ int ufs_qcom_phy_base_init(struct platform_device *pdev,
int err = 0;

res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_mem");
- if (!res) {
- dev_err(dev, "%s: phy_mem resource not found\n", __func__);
- err = -ENOMEM;
- goto out;
- }
-
phy_common->mmio = devm_ioremap_resource(dev, res);
if (IS_ERR((void const *)phy_common->mmio)) {
err = PTR_ERR((void const *)phy_common->mmio);
phy_common->mmio = NULL;
dev_err(dev, "%s: ioremap for phy_mem resource failed %d\n",
__func__, err);
- goto out;
+ return err;
}

/* "dev_ref_clk_ctrl_mem" is optional resource */
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"dev_ref_clk_ctrl_mem");
- if (!res) {
- dev_dbg(dev, "%s: dev_ref_clk_ctrl_mem resource not found\n",
- __func__);
- goto out;
- }
-
phy_common->dev_ref_clk_ctrl_mmio = devm_ioremap_resource(dev, res);
- if (IS_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio)) {
- err = PTR_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio);
+ if (IS_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio))
phy_common->dev_ref_clk_ctrl_mmio = NULL;
- dev_err(dev, "%s: ioremap for dev_ref_clk_ctrl_mem resource failed %d\n",
- __func__, err);
- }

-out:
- return err;
+ return 0;
}

static int __ufs_qcom_phy_clk_get(struct phy *phy,
--
1.9.1



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