[PATCH v3 4/6] mmc: sdhci-s3c: derive transfer width host capability from max_width in platform data

Thomas Abraham thomas.abraham at linaro.org
Tue Jan 31 12:56:14 EST 2012


max_width member in platform data can be used to derive the mmc bus transfer
width that can be supported by the controller.

Signed-off-by: Thomas Abraham <thomas.abraham at linaro.org>
---
 drivers/mmc/host/sdhci-s3c.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index e1b685d..a57d7a0 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -562,6 +562,14 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
 	if (pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
 		host->mmc->caps = MMC_CAP_NONREMOVABLE;
 
+	switch (pdata->max_width) {
+	case 8:
+		host->mmc->caps |= MMC_CAP_8_BIT_DATA;
+	case 4:
+		host->mmc->caps |= MMC_CAP_4_BIT_DATA;
+		break;
+	}
+
 	if (pdata->host_caps)
 		host->mmc->caps |= pdata->host_caps;
 
-- 
1.6.6.rc2




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