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ipq806x: add patch to fix broken usb3

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Due to changes in syscon driver, the phy dwc3 driver
needs to use device_node_to_regmap since it has to skip
the new introduced clk check. This fix broken usb3 on this
target.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
This commit is contained in:
Ansuel Smith 2020-02-19 01:22:00 +01:00 committed by Petr Štetiar
parent e42aca06ab
commit 89423f6abf
1 changed files with 29 additions and 0 deletions
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29
target/linux/ipq806x/patches-5.4/0077-phy-dwc3-qcom-fix-kernel-5_4.patch Normal file
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@ -0,0 +1,29 @@
--- a/drivers/phy/qualcomm/phy-qcom-dwc3.c
+++ b/drivers/phy/qualcomm/phy-qcom-dwc3.c
@@ -491,7 +491,6 @@ static int qcom_dwc3_phy_probe(struct pl
struct qcom_dwc3_usb_phy *phy_dwc3;
struct phy_provider *phy_provider;
struct phy *generic_phy;
- struct resource *res;
const struct of_device_id *match;
const struct qcom_dwc3_phy_drvdata *data;
struct device_node *np;
@@ -505,7 +504,17 @@ static int qcom_dwc3_phy_probe(struct pl
phy_dwc3->dev = &pdev->dev;
- phy_dwc3->base = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap");
+ np = of_parse_phandle(pdev->dev.of_node, "regmap", 0);
+ if (!np)
+ return -ENODEV;
+
+ if (!of_device_is_compatible(np, "syscon"))
+ return -EINVAL;
+
+ phy_dwc3->base = device_node_to_regmap(np);
+
+ of_node_put(np);
+
if (IS_ERR_OR_NULL(phy_dwc3->base))
return PTR_ERR_OR_ZERO(phy_dwc3->base) ? : -EINVAL;