mmc: meson-gx: remove unneeded configuration bit resets

The variables holding the configuration bits are zero-initialized.
So we can remove all bit resets.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>

drivers/mmc/host/meson-gx-mmc.c

@@ -441,7 +441,6 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
 
 	/* Response */
 	if (cmd->flags & MMC_RSP_PRESENT) {
-		desc->cmd_cfg &= ~CMD_CFG_NO_RESP;
 		if (cmd->flags & MMC_RSP_136)
 			desc->cmd_cfg |= CMD_CFG_RESP_128;
 		desc->cmd_cfg |= CMD_CFG_RESP_NUM;
@@ -479,7 +478,6 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
 				writel(cfg, host->regs + SD_EMMC_CFG);
 			}
 		} else {
-			desc->cmd_cfg &= ~CMD_CFG_BLOCK_MODE;
 			desc->cmd_cfg |=
 				(cmd->data->blksz & CMD_CFG_LENGTH_MASK) <<
 				CMD_CFG_LENGTH_SHIFT;
@@ -494,15 +492,12 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
 					  host->bounce_buf, xfer_bytes);
 			cmd->data->bytes_xfered = xfer_bytes;
 			dma_wmb();
-		} else {
-			desc->cmd_cfg &= ~CMD_CFG_DATA_WR;
 		}
 
 		desc->cmd_data = host->bounce_dma_addr & CMD_DATA_MASK;
 
 		cmd_cfg_timeout = ilog2(SD_EMMC_CMD_TIMEOUT_DATA);
 	} else {
-		desc->cmd_cfg &= ~CMD_CFG_DATA_IO;
 		cmd_cfg_timeout = ilog2(SD_EMMC_CMD_TIMEOUT);
 	}
 	desc->cmd_cfg |= (cmd_cfg_timeout & CMD_CFG_TIMEOUT_MASK) <<