mmc: sunxi: Cleanup "new timing mode" selection

Among the SoCs using the "new timing mode", only the A83T needs to
explicitly switch to that mode.

By just defining the symbol for that one odd A83T bit to 0 for any other
SoCs, we can always OR that in, and save the confusing nested #ifdefs.

Clean up the also confusing new_mode setting on the way.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index bc68deb..33cedb4 100644 (file)
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -23,6 +23,10 @@
 #include <asm-generic/gpio.h>
 #include <linux/delay.h>
 
+#ifndef CCM_MMC_CTRL_MODE_SEL_NEW
+#define CCM_MMC_CTRL_MODE_SEL_NEW      0
+#endif
+
 struct sunxi_mmc_plat {
        struct mmc_config cfg;
        struct mmc mmc;
@@ -102,13 +106,10 @@ static int mmc_resource_init(int sdc_no)
 static int mmc_set_mod_clk(struct sunxi_mmc_priv *priv, unsigned int hz)
 {
        unsigned int pll, pll_hz, div, n, oclk_dly, sclk_dly;
-       bool new_mode = true;
+       bool new_mode = IS_ENABLED(CONFIG_MMC_SUNXI_HAS_NEW_MODE);
        bool calibrate = false;
        u32 val = 0;
 
-       if (!IS_ENABLED(CONFIG_MMC_SUNXI_HAS_NEW_MODE))
-               new_mode = false;
-
        /* A83T support new mode only on eMMC */
        if (IS_ENABLED(CONFIG_MACH_SUN8I_A83T) && priv->mmc_no != 2)
                new_mode = false;
@@ -176,12 +177,8 @@ static int mmc_set_mod_clk(struct sunxi_mmc_priv *priv, unsigned int hz)
        }
 
        if (new_mode) {
-#ifdef CONFIG_MMC_SUNXI_HAS_NEW_MODE
-#ifdef CONFIG_MMC_SUNXI_HAS_MODE_SWITCH
-               val = CCM_MMC_CTRL_MODE_SEL_NEW;
-#endif
+               val |= CCM_MMC_CTRL_MODE_SEL_NEW;
                setbits_le32(&priv->reg->ntsr, SUNXI_MMC_NTSR_MODE_SEL_NEW);
-#endif
        } else if (!calibrate) {
                /*
                 * Use hardcoded delay values if controller doesn't support