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>
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 3f22c20..f081631 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -166,11 +166,13 @@
/* 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 @@
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;