mmc: dw_mmc: add quirks for unreliable card detect, and capabilities

This patch adds quirks and capabilities to platdata.

Some cards don't use the CDn pin; in that case, we assume the card's
inserted. Some boards need other capabilities. So, we add capabilities
in the board's platdata.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 3f22c201ee3a..f08163198877 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -166,11 +166,13 @@ struct dw_mci_dma_ops {
 
 /* IP Quirks/flags. */
 /* DTO fix for command transmission with IDMAC configured */
-#define DW_MCI_QUIRK_IDMAC_DTO          BIT(0)
+#define DW_MCI_QUIRK_IDMAC_DTO                  BIT(0)
 /* delay needed between retries on some 2.11a implementations */
-#define DW_MCI_QUIRK_RETRY_DELAY        BIT(1)
+#define DW_MCI_QUIRK_RETRY_DELAY                BIT(1)
 /* High Speed Capable - Supports HS cards (upto 50MHz) */
-#define DW_MCI_QUIRK_HIGHSPEED          BIT(2)
+#define DW_MCI_QUIRK_HIGHSPEED                  BIT(2)
+/* Unreliable card detection */
+#define DW_MCI_QUIRK_BROKEN_CARD_DETECTION      BIT(3)
 
 
 struct dma_pdata;
@@ -190,6 +192,8 @@ struct dw_mci_board {
         u32 quirks; /* Workaround / Quirk flags */
         unsigned int bus_hz; /* Bus speed */
 
+        unsigned int caps;      /* Capabilities */
+
         /* delay in mS before detecting cards after interrupt */
         u32 detect_delay_ms;