[PATCH/RFC] tmio_mmc: keep card-detect interrupts enabled

Guennadi Liakhovetski
2009-11-06T10:45:15Z

On SuperH platforms the SDHI controller does not produce any command IRQs
after a completed IO. This leads to card-detect interrupts staying
disabled. Do not disable card-detect interrupts on DATA IRQs.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
---

Marked as RFC because I'm not really sure this is a correct approach to
fix this problem, and whether this will have negative effect on other
tmio_mmc MFD users.

diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index c676767..0b31d44 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -55,10 +55,8 @@
/* Define some IRQ masks */
/* This is the mask used at reset by the chip */
#define TMIO_MASK_ALL 0x837f031d
-#define TMIO_MASK_READOP (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND | \
- TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
-#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND | \
- TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
+#define TMIO_MASK_READOP (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
+#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
#define TMIO_MASK_CMD (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
#define TMIO_MASK_IRQ (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)