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Diffstat (limited to 'arch/arm/plat-mxc/include/mach/esdhc.h')
-rw-r--r--arch/arm/plat-mxc/include/mach/esdhc.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/plat-mxc/include/mach/esdhc.h b/arch/arm/plat-mxc/include/mach/esdhc.h
index a48a9aaa56b..86003f41175 100644
--- a/arch/arm/plat-mxc/include/mach/esdhc.h
+++ b/arch/arm/plat-mxc/include/mach/esdhc.h
@@ -10,7 +10,17 @@
#ifndef __ASM_ARCH_IMX_ESDHC_H
#define __ASM_ARCH_IMX_ESDHC_H
+/**
+ * struct esdhc_platform_data - optional platform data for esdhc on i.MX
+ *
+ * strongly recommended for i.MX25/35, not needed for other variants
+ *
+ * @wp_gpio: gpio for write_protect (-EINVAL if unused)
+ * @cd_gpio: gpio for card_detect interrupt (-EINVAL if unused)
+ */
+
struct esdhc_platform_data {
- unsigned int wp_gpio; /* write protect pin */
+ unsigned int wp_gpio;
+ unsigned int cd_gpio;
};
#endif /* __ASM_ARCH_IMX_ESDHC_H */