mmc: au1xmmc: Drop redundant code in au1xmmc_send_command()

The in-parameter "wait" is always set to 0 by the caller, hence just drop
it and its corresponding code.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Manuel Lauss <manuel.lauss@gmail.com>
Link: https://lore.kernel.org/r/20200406114337.8802-1-ulf.hansson@linaro.org

drivers/mmc/host/au1xmmc.c

@@ -259,7 +259,7 @@ static void au1xmmc_tasklet_finish(unsigned long param)
 	au1xmmc_finish_request(host);
 }
 
-static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
+static int au1xmmc_send_command(struct au1xmmc_host *host,
 				struct mmc_command *cmd, struct mmc_data *data)
 {
 	u32 mmccmd = (cmd->opcode << SD_CMD_CI_SHIFT);
@@ -302,29 +302,13 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
 	__raw_writel(cmd->arg, HOST_CMDARG(host));
 	wmb(); /* drain writebuffer */
 
-	if (wait)
-		IRQ_OFF(host, SD_CONFIG_CR);
-
 	__raw_writel((mmccmd | SD_CMD_GO), HOST_CMD(host));
 	wmb(); /* drain writebuffer */
 
 	/* Wait for the command to go on the line */
 	while (__raw_readl(HOST_CMD(host)) & SD_CMD_GO)
 		/* nop */;
 
-	/* Wait for the command to come back */
-	if (wait) {
-		u32 status = __raw_readl(HOST_STATUS(host));
-
-		while (!(status & SD_STATUS_CR))
-			status = __raw_readl(HOST_STATUS(host));
-
-		/* Clear the CR status */
-		__raw_writel(SD_STATUS_CR, HOST_STATUS(host));
-
-		IRQ_ON(host, SD_CONFIG_CR);
-	}
-
 	return 0;
 }
 
@@ -711,7 +695,7 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
 	}
 
 	if (!ret)
-		ret = au1xmmc_send_command(host, 0, mrq->cmd, mrq->data);
+		ret = au1xmmc_send_command(host, mrq->cmd, mrq->data);
 
 	if (ret) {
 		mrq->cmd->error = ret;