mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5

The patch extends card_detect and write_protect support to get mx5
family and more scenarios supported.  The changes include:

 * Turn platform_data from optional to mandatory
 * Add cd_types and wp_types into platform_data to cover more use
   cases
 * Remove the use of flag ESDHC_FLAG_GPIO_FOR_CD
 * Adjust some machine codes to adopt the platform_data changes
 * Work around the issue that software reset will get card detection
   circuit stop working

With this patch, card_detect and write_protect gets supported on
mx5 based platforms.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Acked-by: Chris Ball <cjb@laptop.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-mx5/board-mx53_loco.c b/arch/arm/mach-mx5/board-mx53_loco.c
index 54be525e2bd7..4e1d51d252dc 100644
--- a/arch/arm/mach-mx5/board-mx53_loco.c
+++ b/arch/arm/mach-mx5/board-mx53_loco.c
@@ -210,11 +210,15 @@ static const struct gpio_keys_platform_data loco_button_data __initconst = {
 
 static const struct esdhc_platform_data mx53_loco_sd1_data __initconst = {
         .cd_gpio = LOCO_SD1_CD,
+        .cd_type = ESDHC_CD_GPIO,
+        .wp_type = ESDHC_WP_NONE,
 };
 
 static const struct esdhc_platform_data mx53_loco_sd3_data __initconst = {
         .cd_gpio = LOCO_SD3_CD,
         .wp_gpio = LOCO_SD3_WP,
+        .cd_type = ESDHC_CD_GPIO,
+        .wp_type = ESDHC_WP_GPIO,
 };
 
 static inline void mx53_loco_fec_reset(void)