diff options
Diffstat (limited to 'drivers/mmc/host/moxart-mmc.c')
-rw-r--r-- | drivers/mmc/host/moxart-mmc.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c index f3e18d08e852..006f1862444b 100644 --- a/drivers/mmc/host/moxart-mmc.c +++ b/drivers/mmc/host/moxart-mmc.c @@ -17,6 +17,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/delay.h> +#include <linux/errno.h> #include <linux/interrupt.h> #include <linux/blkdev.h> #include <linux/dma-mapping.h> @@ -562,7 +563,6 @@ static int moxart_probe(struct platform_device *pdev) struct dma_slave_config cfg; struct clk *clk; void __iomem *reg_mmc; - dma_cap_mask_t mask; int irq, ret; u32 i; @@ -586,9 +586,8 @@ static int moxart_probe(struct platform_device *pdev) goto out; } - clk = of_clk_get(node, 0); + clk = devm_clk_get(dev, NULL); if (IS_ERR(clk)) { - dev_err(dev, "of_clk_get failed\n"); ret = PTR_ERR(clk); goto out; } @@ -599,10 +598,9 @@ static int moxart_probe(struct platform_device *pdev) goto out; } - mmc_of_parse(mmc); - - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); + ret = mmc_of_parse(mmc); + if (ret) + goto out; host = mmc_priv(mmc); host->mmc = mmc; @@ -611,8 +609,8 @@ static int moxart_probe(struct platform_device *pdev) host->timeout = msecs_to_jiffies(1000); host->sysclk = clk_get_rate(clk); host->fifo_width = readl(host->base + REG_FEATURE) << 2; - host->dma_chan_tx = of_dma_request_slave_channel(node, "tx"); - host->dma_chan_rx = of_dma_request_slave_channel(node, "rx"); + host->dma_chan_tx = dma_request_slave_channel_reason(dev, "tx"); + host->dma_chan_rx = dma_request_slave_channel_reason(dev, "rx"); spin_lock_init(&host->lock); @@ -622,6 +620,11 @@ static int moxart_probe(struct platform_device *pdev) mmc->ocr_avail = 0xffff00; /* Support 2.0v - 3.6v power. */ if (IS_ERR(host->dma_chan_tx) || IS_ERR(host->dma_chan_rx)) { + if (PTR_ERR(host->dma_chan_tx) == -EPROBE_DEFER || + PTR_ERR(host->dma_chan_rx) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto out; + } dev_dbg(dev, "PIO mode transfer enabled\n"); host->have_dma = false; } else { @@ -700,9 +703,6 @@ static int moxart_remove(struct platform_device *pdev) writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF, host->base + REG_CLOCK_CONTROL); } - - kfree(host); - return 0; } |