staging: mt7621-mmc: Remove unnecessary field from struct msdc_hw

Remove the unnecessary field data_pins from msdc_hw, later this
information should be taken from the device tree.
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-mmc/board.h

@@ -81,7 +81,6 @@ struct msdc_hw {
 	unsigned char  cmd_drv;          /* command pad driving */
 	unsigned char  dat_drv;          /* data pad driving */
 	unsigned long  flags;            /* hardware capability flags */
-	unsigned long  data_pins;        /* data pins */
 	unsigned long  data_offset;      /* data address offset */
 
 	/* config gpio pull mode */

drivers/staging/mt7621-mmc/sd.c

@@ -192,7 +192,6 @@ struct msdc_hw msdc0_hw = {
 	.clk_drv        = 4,
 	.cmd_drv        = 4,
 	.dat_drv        = 4,
-	.data_pins      = 4,
 	.data_offset    = 0,
 	.flags          = MSDC_SYS_SUSPEND | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED,
 //	.flags          = MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE,
@@ -2732,11 +2731,10 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	   For sdio   : MSDC_EXT_SDIO_IRQ | MSDC_HIGHSPEED */
 	if (hw->flags & MSDC_HIGHSPEED)
 		mmc->caps   = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
-	if (hw->data_pins == 4) { /* current data_pins are all 4*/
-		mmc->caps  |= MMC_CAP_4_BIT_DATA;
-	} else if (hw->data_pins == 8) {
-		mmc->caps  |= MMC_CAP_8_BIT_DATA;
-	}
+
+	//TODO: read this as bus-width from dt (via mmc_of_parse)
+	mmc->caps  |= MMC_CAP_4_BIT_DATA;
+
 	if ((hw->flags & MSDC_SDIO_IRQ) || (hw->flags & MSDC_EXT_SDIO_IRQ))
 		mmc->caps |= MMC_CAP_SDIO_IRQ;  /* yes for sdio */