mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter

To be able to use mmc_send_tuning() prior the struct mmc_card has been
allocated, let's convert it to take the struct mmc_host* as parameter
instead.

Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/mmc/core/mmc_ops.c

@@ -547,14 +547,13 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 }
 EXPORT_SYMBOL_GPL(mmc_switch);
 
-int mmc_send_tuning(struct mmc_card *card)
+int mmc_send_tuning(struct mmc_host *host)
 {
 	struct mmc_request mrq = {NULL};
 	struct mmc_command cmd = {0};
 	struct mmc_data data = {0};
 	struct scatterlist sg;
-	struct mmc_host *mmc = card->host;
-	struct mmc_ios *ios = &mmc->ios;
+	struct mmc_ios *ios = &host->ios;
 	const u8 *tuning_block_pattern;
 	int size, err = 0;
 	u8 *data_buf;
@@ -596,7 +595,7 @@ int mmc_send_tuning(struct mmc_card *card)
 	data.sg_len = 1;
 	sg_init_one(&sg, data_buf, size);
 
-	mmc_wait_for_req(mmc, &mrq);
+	mmc_wait_for_req(host, &mrq);
 
 	if (cmd.error) {
 		err = cmd.error;

include/linux/mmc/core.h

@@ -154,7 +154,7 @@ extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
 extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
 			bool, bool);
 extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
-extern int mmc_send_tuning(struct mmc_card *card);
+extern int mmc_send_tuning(struct mmc_host *host);
 extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
 
 #define MMC_ERASE_ARG		0x00000000