From: linux@arm•linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 9/9] clk: spi-pl022: convert to clk_prepare()/clk_unprepare()
Date: Tue, 27 Sep 2011 09:29:37 +0100 [thread overview]
Message-ID: <E1R8T2n-0003wr-Rb@rmk-PC.arm.linux.org.uk> (raw)
Signed-off-by: Russell King <rmk+kernel@arm•linux.org.uk>
---
drivers/spi/spi-pl022.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 3520cf9..1ab2fa0 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2187,6 +2187,13 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
dev_err(&adev->dev, "could not retrieve SSP/SPI bus clock\n");
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;
+ }
+
/* Disable SSP */
writew((readw(SSP_CR1(pl022->virtbase)) & (~SSP_CR1_MASK_SSE)),
SSP_CR1(pl022->virtbase));
@@ -2238,6 +2245,8 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
pl022_dma_remove(pl022);
free_irq(adev->irq[0], pl022);
err_no_irq:
+ clk_unprepare(pl022->clk);
+ err_clk_prep:
clk_put(pl022->clk);
err_no_clk:
iounmap(pl022->virtbase);
@@ -2271,6 +2280,7 @@ pl022_remove(struct amba_device *adev)
pl022_dma_remove(pl022);
free_irq(adev->irq[0], pl022);
clk_disable(pl022->clk);
+ clk_unprepare(pl022->clk);
clk_put(pl022->clk);
iounmap(pl022->virtbase);
amba_release_regions(adev);
--
1.7.4.4
reply other threads:[~2011-09-27 8:29 UTC|newest]
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