mmc: sh_mmcif: support generic card-detection

Extend the sh_mmcif driver to support GPIO card detection, provided by the
slot function module. The original .get_cd() platform callback is also
preserved for now.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index 05f0e3db1c12..c2f73cbb4d5c 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -44,6 +44,8 @@ struct sh_mmcif_plat_data {
         struct sh_mmcif_dma     *dma;           /* Deprecated. Instead */
         unsigned int            slave_id_tx;    /* use embedded slave_id_[tr]x */
         unsigned int            slave_id_rx;
+        bool                    use_cd_gpio : 1;
+        unsigned int            cd_gpio;
         u8                      sup_pclk;       /* 1 :SH7757, 0: SH7724/SH7372 */
         unsigned long           caps;
         u32                     ocr;