mmc: sdhci-pltfm: Add structure for host-specific data

We need to carry some information per host, e.g. the clock. Add a
structure for it and initialize it in the generic part. Also improve
the check for a parent.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 900f32902f73..93a031973f62 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -11,8 +11,15 @@
 #ifndef _DRIVERS_MMC_SDHCI_PLTFM_H
 #define _DRIVERS_MMC_SDHCI_PLTFM_H
 
+#include <linux/clk.h>
+#include <linux/types.h>
 #include <linux/sdhci-pltfm.h>
 
+struct sdhci_pltfm_host {
+        struct clk *clk;
+        u32 scratchpad; /* to handle quirks across io-accessor calls */
+};
+
 extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata;
 
 #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */