[v7,6/6] spi: davinci: Simplify using devm_clk_get_enabled()

Commit Message

Uwe Kleine-König May 10, 2021, 5:41 p.m. UTC

devm_clk_get_enabled() returns the clk already (prepared and) enabled
and the automatically called cleanup cares for disabling (and
unpreparing). So simplify .probe() and .remove() accordingly.

Acked-by: Mark Brown <[e-mail]>
Signed-off-by: Uwe Kleine-König <[e-mail]>
---
 drivers/spi/spi-davinci.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

Patch

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index e114e6fe5ea5..66884d068db5 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -931,14 +931,11 @@  static int davinci_spi_probe(struct platform_device *pdev)
 
 	dspi->bitbang.master = master;
 
-	dspi->clk = devm_clk_get(&pdev->dev, NULL);
+	dspi->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(dspi->clk)) {
 		ret = -ENODEV;
 		goto free_master;
 	}
-	ret = clk_prepare_enable(dspi->clk);
-	if (ret)
-		goto free_master;
 
 	master->use_gpio_descriptors = true;
 	master->dev.of_node = pdev->dev.of_node;
@@ -963,7 +960,7 @@  static int davinci_spi_probe(struct platform_device *pdev)
 
 	ret = davinci_spi_request_dma(dspi);
 	if (ret == -EPROBE_DEFER) {
-		goto free_clk;
+		goto free_master;
 	} else if (ret) {
 		dev_info(&pdev->dev, "DMA is not supported (%d)\n", ret);
 		dspi->dma_rx = NULL;
@@ -1007,8 +1004,6 @@  static int davinci_spi_probe(struct platform_device *pdev)
 		dma_release_channel(dspi->dma_rx);
 		dma_release_channel(dspi->dma_tx);
 	}
-free_clk:
-	clk_disable_unprepare(dspi->clk);
 free_master:
 	spi_master_put(master);
 err:
@@ -1034,8 +1029,6 @@  static int davinci_spi_remove(struct platform_device *pdev)
 
 	spi_bitbang_stop(&dspi->bitbang);
 
-	clk_disable_unprepare(dspi->clk);
-
 	if (dspi->dma_rx) {
 		dma_release_channel(dspi->dma_rx);
 		dma_release_channel(dspi->dma_tx);