| From 4c0c9be05004d1eb674b7586216b3d93cc04531c Mon Sep 17 00:00:00 2001 |
| From: Marc Kleine-Budde <mkl@pengutronix.de> |
| 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 <shawn.guo@linaro.org> |
| Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
| Signed-off-by: Chris Ball <cjb@laptop.org> |
| --- |
| 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 |
| |
