rockchip: mmc: Move all DT decoding to ofdata_to_platdata()

It is more correct to avoid touching the device tree in the probe() method.
Update the driver to work this way.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/mmc/rockchip_dw_mmc.c b/drivers/mmc/rockchip_dw_mmc.c
index 691a51557de4e89b41f3b975618fe6ba28a7c111..7296c5f6f96e13143f52376a164b187dd117c6a3 100644 (file)
--- a/drivers/mmc/rockchip_dw_mmc.c
+++ b/drivers/mmc/rockchip_dw_mmc.c
@@ -26,6 +26,9 @@ struct rockchip_mmc_plat {
 struct rockchip_dwmmc_priv {
        struct clk clk;
        struct dwmci_host host;
+       int fifo_depth;
+       bool fifo_mode;
+       u32 minmax[2];
 };
 
 static uint rockchip_dwmmc_get_mmc_clk(struct dwmci_host *host, uint freq)
@@ -61,6 +64,16 @@ static int rockchip_dwmmc_ofdata_to_platdata(struct udevice *dev)
        else
                host->dev_index = 1;
 
+       priv->fifo_depth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+                                   "fifo-depth", 0);
+       if (priv->fifo_depth < 0)
+               return -EINVAL;
+       priv->fifo_mode = fdtdec_get_bool(gd->fdt_blob, dev->of_offset,
+                                         "fifo-mode");
+       if (fdtdec_get_int_array(gd->fdt_blob, dev->of_offset,
+                                "clock-freq-min-max", priv->minmax, 2))
+               return -EINVAL;
+
        return 0;
 }
 
@@ -71,28 +84,17 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
        struct rockchip_dwmmc_priv *priv = dev_get_priv(dev);
        struct dwmci_host *host = &priv->host;
        struct udevice *pwr_dev __maybe_unused;
-       u32 minmax[2];
        int ret;
-       int fifo_depth;
 
        ret = clk_get_by_index(dev, 0, &priv->clk);
        if (ret < 0)
                return ret;
 
-       if (fdtdec_get_int_array(gd->fdt_blob, dev->of_offset,
-                                "clock-freq-min-max", minmax, 2))
-               return -EINVAL;
-
-       fifo_depth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
-                                   "fifo-depth", 0);
-       if (fifo_depth < 0)
-               return -EINVAL;
-
        host->fifoth_val = MSIZE(0x2) |
-               RX_WMARK(fifo_depth / 2 - 1) | TX_WMARK(fifo_depth / 2);
+               RX_WMARK(priv->fifo_depth / 2 - 1) |
+               TX_WMARK(priv->fifo_depth / 2);
 
-       if (fdtdec_get_bool(gd->fdt_blob, dev->of_offset, "fifo-mode"))
-               host->fifo_mode = true;
+       host->fifo_mode = priv->fifo_mode;
 
 #ifdef CONFIG_PWRSEQ
        /* Enable power if needed */
@@ -105,7 +107,7 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
        }
 #endif
        dwmci_setup_cfg(&plat->cfg, dev->name, host->buswidth, host->caps,
-                       minmax[1], minmax[0]);
+                       priv->minmax[1], priv->minmax[0]);
        host->mmc = &plat->mmc;
        host->mmc->priv = &priv->host;
        host->mmc->dev = dev;