spi: Use devm_clk_get_*() helper function to

Merge series from Li Zetao <lizetao1@huawei.com>:

Commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared
and enabled clocks") provides a new helper function for prepared and
enabled clocks when a driver keeps a clock prepared (or enabled) during
the whole lifetime of the driver. So where drivers get clocks and enable
them immediately, it can be combined into a single function
devm_clk_get_*(). Moreover, the unprepare and disable function
has been registered to devm_clk_state, and before devm_clk_state is
released, the clocks will be unprepareed and disable, so it is unnecessary
to unprepare and disable clocks explicitly when remove drivers or in the
error handling path.

1 files changed, 1 insertions, 8 deletions

diff --git a/drivers/spi/spi-microchip-core.c b/drivers/spi/spi-microchip-core.c
index 3d4b22eda0bf..634364c7cfe6 100644
--- a/drivers/spi/spi-microchip-core.c
+++ b/drivers/spi/spi-microchip-core.c
@@ -539,22 +539,16 @@ static int mchp_corespi_probe(struct platform_device *pdev)
 		return dev_err_probe(&pdev->dev, ret,
 				     "could not request irq\n");
 
-	spi->clk = devm_clk_get(&pdev->dev, NULL);
+	spi->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(spi->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(spi->clk),
 				     "could not get clk\n");
 
-	ret = clk_prepare_enable(spi->clk);
-	if (ret)
-		return dev_err_probe(&pdev->dev, ret,
-				     "failed to enable clock\n");
-
 	mchp_corespi_init(host, spi);
 
 	ret = devm_spi_register_controller(&pdev->dev, host);
 	if (ret) {
 		mchp_corespi_disable(spi);
-		clk_disable_unprepare(spi->clk);
 		return dev_err_probe(&pdev->dev, ret,
 				     "unable to register host for SPI controller\n");
 	}
@@ -570,7 +564,6 @@ static void mchp_corespi_remove(struct platform_device *pdev)
 	struct mchp_corespi *spi = spi_controller_get_devdata(host);
 
 	mchp_corespi_disable_ints(spi);
-	clk_disable_unprepare(spi->clk);
 	mchp_corespi_disable(spi);
 }