linux-kernel - [PATCH 09/17] spi: pl022: Simplify clock handling

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Message-Id: <1391529538-21685-10-git-send-email-ulf.hansson@linaro.org>
Date:	Tue,  4 Feb 2014 16:58:50 +0100
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org
Cc:	Alessandro Rubini <rubini@...pv.it>,
	Linus Walleij <linus.walleij@...aro.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	Chris Ball <chris@...ntf.net>, Mark Brown <broonie@...nel.org>,
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-spi@...r.kernel.org, linux-mmc@...r.kernel.org,
	Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 09/17] spi: pl022: Simplify clock handling

Make use of clk_prepare_enable and clk_disable_unprepare to simplify
code. No functional change.

Cc: Mark Brown <broonie@...nel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
---
 drivers/spi/spi-pl022.c |   15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 2bb238f..2f44c81 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2183,13 +2183,7 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
 		goto err_no_clk;
 	}
 
-	status = clk_prepare(pl022->clk);
-	if (status) {
-		dev_err(&adev->dev, "could not prepare SSP/SPI bus clock\n");
-		goto  err_clk_prep;
-	}
-
-	status = clk_enable(pl022->clk);
+	status = clk_prepare_enable(pl022->clk);
 	if (status) {
 		dev_err(&adev->dev, "could not enable SSP/SPI bus clock\n");
 		goto err_no_clk_en;
@@ -2250,10 +2244,8 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
 	if (platform_info->enable_dma)
 		pl022_dma_remove(pl022);
  err_no_irq:
-	clk_disable(pl022->clk);
+	clk_disable_unprepare(pl022->clk);
  err_no_clk_en:
-	clk_unprepare(pl022->clk);
- err_clk_prep:
  err_no_clk:
  err_no_ioremap:
 	amba_release_regions(adev);
@@ -2281,8 +2273,7 @@ pl022_remove(struct amba_device *adev)
 	if (pl022->master_info->enable_dma)
 		pl022_dma_remove(pl022);
 
-	clk_disable(pl022->clk);
-	clk_unprepare(pl022->clk);
+	clk_disable_unprepare(pl022->clk);
 	amba_release_regions(adev);
 	tasklet_disable(&pl022->pump_transfers);
 	return 0;
-- 
1.7.9.5

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