MLK-12934-1 mmc: sdhci-esdhc-imx: correct the max timeout count

Haibo Chen · Haibo Chen · commit 6905ad8789a9 · 2016-06-29T13:50:41.000+08:00
Our Reference Manual has a mistake, for the register SYS_CTRL,the
DTOCV(bit 19~16) means the data timeout counter value. When DTOCV
is set to 0xF, it means SDCLK &lt;&lt; 29, not SDCLK &lt;&lt; 28.

This patch correct this in our usdhc driver.

Signed-off-by: Haibo Chen &lt;haibo.chen@nxp.com&gt;
(cherry picked from commit df9598d6dd617ed87b2e41e29bfc794b69831e86)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -988,7 +988,7 @@ static unsigned int esdhc_get_max_timeout_count(struct sdhci_host *host)
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct pltfm_imx_data *imx_data = pltfm_host->priv;
 
-	return esdhc_is_usdhc(imx_data) ? 1 << 28 : 1 << 27;
+	return esdhc_is_usdhc(imx_data) ? 1 << 29 : 1 << 27;
 }
 
 static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)

Original file line number	Diff line number	Diff line change
`@@ -988,7 +988,7 @@ static unsigned int esdhc_get_max_timeout_count(struct sdhci_host *host)`
`988`	`988`	`struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);`
`989`	`989`	`struct pltfm_imx_data *imx_data = pltfm_host->priv;`
`990`	`990`
`991`		`- return esdhc_is_usdhc(imx_data) ? 1 << 28 : 1 << 27;`
	`991`	`+ return esdhc_is_usdhc(imx_data) ? 1 << 29 : 1 << 27;`
`992`	`992`	`}`
`993`	`993`
`994`	`994`	`static void esdhc_set_timeout(struct sdhci_host host, struct mmc_command cmd)`