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Subject[PATCH 2/2] usb: dwc3: Use clk_bulk_prepare_enable()
Date
Use clk_bulk_prepare_enable() and clk_bulk_disable_unprepare() to
simplify code a bit. No functional change intended.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/usb/dwc3/core.c | 23 +++++------------------
1 file changed, 5 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 768023a2553c..f0e0cbe9254a 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -686,8 +686,7 @@ static void dwc3_core_exit(struct dwc3 *dwc)
usb_phy_set_suspend(dwc->usb3_phy, 1);
phy_power_off(dwc->usb2_generic_phy);
phy_power_off(dwc->usb3_generic_phy);
- clk_bulk_disable(dwc->num_clks, dwc->clks);
- clk_bulk_unprepare(dwc->num_clks, dwc->clks);
+ clk_bulk_disable_unprepare(dwc->num_clks, dwc->clks);
reset_control_assert(dwc->reset);
}

@@ -1451,14 +1450,10 @@ static int dwc3_probe(struct platform_device *pdev)
if (ret)
return ret;

- ret = clk_bulk_prepare(dwc->num_clks, dwc->clks);
+ ret = clk_bulk_prepare_enable(dwc->num_clks, dwc->clks);
if (ret)
goto assert_reset;

- ret = clk_bulk_enable(dwc->num_clks, dwc->clks);
- if (ret)
- goto unprepare_clks;
-
if (!dwc3_core_is_valid(dwc)) {
dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
ret = -ENODEV;
@@ -1531,9 +1526,7 @@ static int dwc3_probe(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);

disable_clks:
- clk_bulk_disable(dwc->num_clks, dwc->clks);
-unprepare_clks:
- clk_bulk_unprepare(dwc->num_clks, dwc->clks);
+ clk_bulk_disable_unprepare(dwc->num_clks, dwc->clks);
assert_reset:
reset_control_assert(dwc->reset);

@@ -1571,14 +1564,10 @@ static int dwc3_core_init_for_resume(struct dwc3 *dwc)
if (ret)
return ret;

- ret = clk_bulk_prepare(dwc->num_clks, dwc->clks);
+ ret = clk_bulk_prepare_enable(dwc->num_clks, dwc->clks);
if (ret)
goto assert_reset;

- ret = clk_bulk_enable(dwc->num_clks, dwc->clks);
- if (ret)
- goto unprepare_clks;
-
ret = dwc3_core_init(dwc);
if (ret)
goto disable_clks;
@@ -1586,9 +1575,7 @@ static int dwc3_core_init_for_resume(struct dwc3 *dwc)
return 0;

disable_clks:
- clk_bulk_disable(dwc->num_clks, dwc->clks);
-unprepare_clks:
- clk_bulk_unprepare(dwc->num_clks, dwc->clks);
+ clk_bulk_disable_unprepare(dwc->num_clks, dwc->clks);
assert_reset:
reset_control_assert(dwc->reset);

--
2.21.0
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