From a70aaa64da2205d32d1c9362d8f5d4be619cd58f Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Fri, 11 Jan 2013 17:03:50 +0000 Subject: mmc: dw_mmc: Add "disable-wp" device tree property The "disable-wp" property is used to specify that a given SD card slot doesn't have a concept of write protect. This eliminates the need for special case code for SD slots that should never be write protected (like a micro SD slot or a dev board). The dw_mmc driver is special in needing to specify "disable-wp" because the lack of a "wp-gpios" property means to use the special purpose write protect line. On some other mmc devices the lack of "wp-gpios" means that write protect should be disabled. Signed-off-by: Doug Anderson Acked-by: Seungwon Jeon Acked-by: Will Newton Acked-by: Olof Johansson Signed-off-by: Chris Ball --- include/linux/mmc/dw_mmc.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux/mmc') diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index 34be4f47293c..de61de5608c9 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -209,9 +209,18 @@ struct dw_mci_dma_ops { #define DW_MCI_QUIRK_HIGHSPEED BIT(2) /* Unreliable card detection */ #define DW_MCI_QUIRK_BROKEN_CARD_DETECTION BIT(3) + /* Write Protect detection not available */ +/* + * NOTE: DW_MCI_QUIRK_NO_WRITE_PROTECT will be removed in a future + * patch in the series once reference to it is removed. + */ #define DW_MCI_QUIRK_NO_WRITE_PROTECT BIT(4) +/* Slot level quirks */ +/* This slot has no write protect */ +#define DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT BIT(0) + struct dma_pdata; struct block_settings { -- cgit v1.2.3