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Commit 1656e0fa authored by Pavan Anamula's avatar Pavan Anamula
Browse files

mmc: sdhci-msm: Setting coherent_dma_mask 



Set coherent_dma_mask to allocate consistent
DMA memory during probe.

Change-Id: Ie68c5b04096e77074fd8c91469d2173990fac9bc
Signed-off-by: default avatarPavan Anamula <pavana@codeaurora.org>
parent 98ae6423

drivers/mmc/host/sdhci-msm.c

+2 −0
Original line number Diff line number Diff line
@@ -3286,9 +3286,11 @@ static int sdhci_msm_probe(struct platform_device *pdev) 
		(dma_supported(mmc_dev(host->mmc), DMA_BIT_MASK(64)))) {

		host->dma_mask = DMA_BIT_MASK(64);

		mmc_dev(host->mmc)->dma_mask = &host->dma_mask;

		mmc_dev(host->mmc)->coherent_dma_mask  = host->dma_mask;

	} else if (dma_supported(mmc_dev(host->mmc), DMA_BIT_MASK(32))) {

		host->dma_mask = DMA_BIT_MASK(32);

		mmc_dev(host->mmc)->dma_mask = &host->dma_mask;

		mmc_dev(host->mmc)->coherent_dma_mask  = host->dma_mask;

	} else {

		dev_err(&pdev->dev, "%s: Failed to set dma mask\n", __func__);

	}

include/linux/mmc/sdhci.h

+1 −0
Original line number Diff line number Diff line
@@ -193,6 +193,7 @@ struct sdhci_host { 
	/* Internal data */

	struct mmc_host *mmc;	/* MMC structure */

	u64 dma_mask;		/* custom DMA mask */

	u64 coherent_dma_mask;



#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)

	struct led_classdev led;	/* LED control */