mmc: atmel-mci: Set the timer per command rather than per request

Setting the timer on a per request basis, is rather limiting as the timer
really depends on what commands that is to be sent as part of the request.

Therefore improve the behaviour by programming the timer per command basis
instead.

Cc: Ludovic Desroches <[e-mail]>
Cc: Nicolas Ferre <[e-mail]>
Signed-off-by: Ulf Hansson <[e-mail]>
Acked-by: Ludovic Desroches <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/atmel-mci.c

···
 #define	atmci_writel(port, reg, value)			\
 	__raw_writel((value), (port)->regs + reg)
 
+#define ATMCI_CMD_TIMEOUT_MS	2000
 #define AUTOSUSPEND_DELAY	50
 
 #define ATMCI_DATA_ERROR_FLAGS	(ATMCI_DCRCE | ATMCI_DTOE | ATMCI_OVRE | ATMCI_UNRE)
···
 
 	atmci_writel(host, ATMCI_ARGR, cmd->arg);
 	atmci_writel(host, ATMCI_CMDR, cmd_flags);
+
+	mod_timer(&host->timer,
+		  jiffies + msecs_to_jiffies(ATMCI_CMD_TIMEOUT_MS));
 }
 
 static void atmci_send_stop_cmd(struct atmel_mci *host, struct mmc_data *data)
···
 	 * prepared yet.)
 	 */
 	atmci_writel(host, ATMCI_IER, iflags);
-
-	mod_timer(&host->timer, jiffies +  msecs_to_jiffies(2000));
 }
 
 static void atmci_queue_request(struct atmel_mci *host,