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Merge remote-tracking branch 'spi/topic/mxs' into spi-next

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This commit is contained in:
Mark Brown 2013-09-01 13:48:59 +01:00
commit 7c2fde9b1a
1 changed files with 13 additions and 15 deletions
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28
drivers/spi/spi-mxs.c
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@ -67,13 +67,8 @@ static int mxs_spi_setup_transfer(struct spi_device *dev,
{
struct mxs_spi *spi = spi_master_get_devdata(dev->master);
struct mxs_ssp *ssp = &spi->ssp;
uint8_t bits_per_word;
uint32_t hz = 0;
bits_per_word = dev->bits_per_word;
if (t && t->bits_per_word)
bits_per_word = t->bits_per_word;
hz = dev->max_speed_hz;
if (t && t->speed_hz)
hz = min(hz, t->speed_hz);
@ -513,7 +508,7 @@ static int mxs_spi_probe(struct platform_device *pdev)
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq_err = platform_get_irq(pdev, 0);
if (!iores || irq_err < 0)
if (irq_err < 0)
return -EINVAL;
base = devm_ioremap_resource(&pdev->dev, iores);
@ -563,25 +558,31 @@ static int mxs_spi_probe(struct platform_device *pdev)
goto out_master_free;
}
clk_prepare_enable(ssp->clk);
ret = clk_prepare_enable(ssp->clk);
if (ret)
goto out_dma_release;
clk_set_rate(ssp->clk, clk_freq);
ssp->clk_rate = clk_get_rate(ssp->clk) / 1000;
stmp_reset_block(ssp->base);
ret = stmp_reset_block(ssp->base);
if (ret)
goto out_disable_clk;
platform_set_drvdata(pdev, master);
ret = spi_register_master(master);
if (ret) {
dev_err(&pdev->dev, "Cannot register SPI master, %d\n", ret);
goto out_free_dma;
goto out_disable_clk;
}
return 0;
out_free_dma:
dma_release_channel(ssp->dmach);
out_disable_clk:
clk_disable_unprepare(ssp->clk);
out_dma_release:
dma_release_channel(ssp->dmach);
out_master_free:
spi_master_put(master);
return ret;
@ -598,11 +599,8 @@ static int mxs_spi_remove(struct platform_device *pdev)
ssp = &spi->ssp;
spi_unregister_master(master);
dma_release_channel(ssp->dmach);
clk_disable_unprepare(ssp->clk);
dma_release_channel(ssp->dmach);
spi_master_put(master);
return 0;