mfd: Allow the platform to specify the sh_mobile_sdhi get_cd handler

On some platforms (e.g. AP4EVB) the card detect pin of a slot is not
directly connected to the sdhi hardware, so that polling needs to be used
with tmio_mmc and card detection is handled in the platform code.
This patch allows to set tmio_mmc capabilities (to pass the
MMC_CAP_NEEDS_POLL flag) and exposes a get_cd hook for that purpose.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mfd/sh_mobile_sdhi.h b/include/linux/mfd/sh_mobile_sdhi.h
index 49067802a6d7..c981b959760f 100644
--- a/include/linux/mfd/sh_mobile_sdhi.h
+++ b/include/linux/mfd/sh_mobile_sdhi.h
@@ -7,8 +7,10 @@ struct sh_mobile_sdhi_info {
         int dma_slave_tx;
         int dma_slave_rx;
         unsigned long tmio_flags;
+        unsigned long tmio_caps;
         u32 tmio_ocr_mask;      /* available MMC voltages */
         void (*set_pwr)(struct platform_device *pdev, int state);
+        int (*get_cd)(struct platform_device *pdev);
 };
 
 #endif /* __SH_MOBILE_SDHI_H__ */