[PATCH RFC 28/31] mmc: sdhci-esdhc-imx: remove emulation of uhs_mode

[Russell King]

We no longer need to emulate the uhs_mode field of the host control2
register - the main sdhci driver never reads this back to evaluate
the current mode as it caches the current mode instead.

Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
=-DO NOT APPLY-=
 drivers/mmc/host/sdhci-esdhc-imx.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index ae346d60adb7..dbb7d91a1c49 100644
=-DO NOT APPLY-= a/drivers/mmc/host/sdhci-esdhc-imx.c
=+DO NOT APPLY+= b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -160,7 +160,6 @@ struct pltfm_imx_data {
 		MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */
 		WAIT_FOR_INT,        /* sent CMD12, waiting for response INT */
 	} multiblock_status;
-	u32 uhs_mode;
 	u32 is_ddr;
 };
 
@@ -382,7 +381,6 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 		if (val & ESDHC_MIX_CTRL_SMPCLK_SEL)
 			ret |= SDHCI_CTRL_TUNED_CLK;
 
-		ret |= (imx_data->uhs_mode & SDHCI_CTRL_UHS_MASK);
 		ret &= ~SDHCI_CTRL_PRESET_VAL_ENABLE;
 
 		return ret;
@@ -429,7 +427,6 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 		else
 			new_val &= ~ESDHC_VENDOR_SPEC_VSELECT;
 		writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC);
-		imx_data->uhs_mode = val & SDHCI_CTRL_UHS_MASK;
 		if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
 			new_val = readl(host->ioaddr + ESDHC_MIX_CTRL);
 			if (val & SDHCI_CTRL_TUNED_CLK)
@@ -839,28 +836,20 @@ static int esdhc_change_pinstate(struct sdhci_host *host,
 	return pinctrl_select_state(imx_data->pinctrl, pinctrl);
 }
 
-static void esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
=+DO NOT APPLY+=static void esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned timing)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct pltfm_imx_data *imx_data = pltfm_host->priv;
 	struct esdhc_platform_data *boarddata = &imx_data->boarddata;
 
-	switch (uhs) {
=+DO NOT APPLY+=	switch (timing) {
 	case MMC_TIMING_UHS_SDR12:
-		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR12;
-		break;
 	case MMC_TIMING_UHS_SDR25:
-		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR25;
-		break;
 	case MMC_TIMING_UHS_SDR50:
-		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR50;
-		break;
 	case MMC_TIMING_UHS_SDR104:
 	case MMC_TIMING_MMC_HS200:
-		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR104;
 		break;
 	case MMC_TIMING_UHS_DDR50:
-		imx_data->uhs_mode = SDHCI_CTRL_UHS_DDR50;
 		writel(readl(host->ioaddr + ESDHC_MIX_CTRL) |
 				ESDHC_MIX_CTRL_DDREN,
 				host->ioaddr + ESDHC_MIX_CTRL);
@@ -877,7 +866,7 @@ static void esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
 		break;
 	}
 
-	esdhc_change_pinstate(host, uhs);
=+DO NOT APPLY+=	esdhc_change_pinstate(host, timing);
 }
 
 static void esdhc_reset(struct sdhci_host *host, u8 mask)
-- 
1.8.3.1