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OpenCloudOS-Kernel
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clk: spi-pl022: convert to clk_prepare()/clk_unprepare() 

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-09-22 14:27:11 +01:00
parent 6f5ad96301
commit 7ff6bcf048
1 changed files with 10 additions and 0 deletions
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10
drivers/spi/spi-pl022.c
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@ -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);