From 4c0c9be05004d1eb674b7586216b3d93cc04531c Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Wed, 10 Apr 2013 11:13:43 +0200 Subject: [PATCH 1/3] mmc: mxs-mmc: add cd-inverted property The card-detect GPIO is inverted on some boards. Handle such case. Acked-by: Shawn Guo Signed-off-by: Marc Kleine-Budde Signed-off-by: Chris Ball --- drivers/mmc/host/mxs-mmc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 4efe302..0cdf1f6 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -72,6 +72,7 @@ struct mxs_mmc_host { int sdio_irq_en; int wp_gpio; bool wp_inverted; + bool cd_inverted; }; static int mxs_mmc_get_ro(struct mmc_host *mmc) @@ -96,7 +97,7 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc) struct mxs_ssp *ssp = &host->ssp; return !(readl(ssp->base + HW_SSP_STATUS(ssp)) & - BM_SSP_STATUS_CARD_DETECT); + BM_SSP_STATUS_CARD_DETECT)) ^ host->cd_inverted; } static void mxs_mmc_reset(struct mxs_mmc_host *host) @@ -691,6 +692,8 @@ static int mxs_mmc_probe(struct platform_device *pdev) if (flags & OF_GPIO_ACTIVE_LOW) host->wp_inverted = 1; + host->cd_inverted = of_property_read_bool(np, "cd-inverted"); + mmc->f_min = 400000; mmc->f_max = 288000000; mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; -- 1.8.1.5