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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-01-24 19:37:28 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-02-03 11:19:35 +0530 |
| commit | 41a435e30eb007ca2c8f71db734af6ec3509af4d (patch) | |
| tree | f84bbec957c1c4c898eb00cf43c616ac99cb079e /drivers/usb/host/ohci-exynos.c | |
| parent | 86a176840c627bd5b676b6dff9a0b98f3fe5fafc (diff) | |
| download | linux-stable-41a435e30eb007ca2c8f71db734af6ec3509af4d.tar.gz linux-stable-41a435e30eb007ca2c8f71db734af6ec3509af4d.tar.bz2 linux-stable-41a435e30eb007ca2c8f71db734af6ec3509af4d.zip | |
usb: host: ohci-exynos: Convert to devm_of_phy_optional_get()
Use the new devm_of_phy_optional_get() helper instead of open-coding the
same operation.
As devm_of_phy_optional_get() returns NULL if either the PHY cannot be
found, or if support for the PHY framework is not enabled, it is no
longer needed to check for -ENODEV or -ENOSYS.
This lets us drop several checks for IS_ERR(), as phy_power_{on,off}()
handle NULL parameters fine.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/3adc5dd1149a17ea7daf4463549feab886c6b145.1674584626.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/usb/host/ohci-exynos.c')
| -rw-r--r-- | drivers/usb/host/ohci-exynos.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 8d7977fd5d3b..8af17c1ee5cc 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -69,19 +69,11 @@ static int exynos_ohci_get_phy(struct device *dev, return -EINVAL; } - phy = devm_of_phy_get(dev, child, NULL); + phy = devm_of_phy_optional_get(dev, child, NULL); exynos_ohci->phy[phy_number] = phy; if (IS_ERR(phy)) { - ret = PTR_ERR(phy); - if (ret == -EPROBE_DEFER) { - of_node_put(child); - return ret; - } else if (ret != -ENOSYS && ret != -ENODEV) { - dev_err(dev, - "Error retrieving usb2 phy: %d\n", ret); - of_node_put(child); - return ret; - } + of_node_put(child); + return PTR_ERR(phy); } } @@ -97,12 +89,10 @@ static int exynos_ohci_phy_enable(struct device *dev) int ret = 0; for (i = 0; ret == 0 && i < PHY_NUMBER; i++) - if (!IS_ERR(exynos_ohci->phy[i])) - ret = phy_power_on(exynos_ohci->phy[i]); + ret = phy_power_on(exynos_ohci->phy[i]); if (ret) for (i--; i >= 0; i--) - if (!IS_ERR(exynos_ohci->phy[i])) - phy_power_off(exynos_ohci->phy[i]); + phy_power_off(exynos_ohci->phy[i]); return ret; } @@ -114,8 +104,7 @@ static void exynos_ohci_phy_disable(struct device *dev) int i; for (i = 0; i < PHY_NUMBER; i++) - if (!IS_ERR(exynos_ohci->phy[i])) - phy_power_off(exynos_ohci->phy[i]); + phy_power_off(exynos_ohci->phy[i]); } static int exynos_ohci_probe(struct platform_device *pdev) |