mmc: rockchip_sdhci: Fix use of device private data

The device private data is misused in rockchip_sdhci_of_to_plat and
rockchip_sdhci_execute_tuning.

In these functions dev_get_priv is assigned to struct sdhci_host:

  struct sdhci_host *host = dev_get_priv(dev);

Instead, the sdhci host should refer to host in struct rockchip_sdhc:

  struct rockchip_sdhc *priv = dev_get_priv(dev);
  struct sdhci_host *host = &priv->host;

Because host is the first member in struct rockchip_sdhc this is not a
real problem, lets fix it anyway and also use priv name consistently.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index fef23f5..3fac235 100644 (file)
--- a/drivers/mmc/rockchip_sdhci.c
+++ b/drivers/mmc/rockchip_sdhci.c
@@ -450,7 +450,8 @@ static int rockchip_sdhci_set_ios_post(struct sdhci_host *host)
 
 static int rockchip_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
 {
-       struct sdhci_host *host = dev_get_priv(mmc->dev);
+       struct rockchip_sdhc *priv = dev_get_priv(mmc->dev);
+       struct sdhci_host *host = &priv->host;
        char tuning_loop_counter = SDHCI_TUNING_LOOP_COUNT;
        struct mmc_cmd cmd;
        u32 ctrl, blk_size;
@@ -531,9 +532,9 @@ static int rockchip_sdhci_probe(struct udevice *dev)
        struct sdhci_data *data = (struct sdhci_data *)dev_get_driver_data(dev);
        struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
        struct rockchip_sdhc_plat *plat = dev_get_plat(dev);
-       struct rockchip_sdhc *prv = dev_get_priv(dev);
+       struct rockchip_sdhc *priv = dev_get_priv(dev);
        struct mmc_config *cfg = &plat->cfg;
-       struct sdhci_host *host = &prv->host;
+       struct sdhci_host *host = &priv->host;
        struct clk clk;
        int ret;
 
@@ -547,8 +548,8 @@ static int rockchip_sdhci_probe(struct udevice *dev)
                printf("%s fail to get clk\n", __func__);
        }
 
-       prv->emmc_clk = clk;
-       prv->dev = dev;
+       priv->emmc_clk = clk;
+       priv->dev = dev;
 
        if (data->get_phy) {
                ret = data->get_phy(dev);
@@ -566,7 +567,7 @@ static int rockchip_sdhci_probe(struct udevice *dev)
        host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD;
 
        host->mmc = &plat->mmc;
-       host->mmc->priv = &prv->host;
+       host->mmc->priv = &priv->host;
        host->mmc->dev = dev;
        upriv->mmc = host->mmc;
 
@@ -580,8 +581,9 @@ static int rockchip_sdhci_probe(struct udevice *dev)
 static int rockchip_sdhci_of_to_plat(struct udevice *dev)
 {
        struct rockchip_sdhc_plat *plat = dev_get_plat(dev);
-       struct sdhci_host *host = dev_get_priv(dev);
+       struct rockchip_sdhc *priv = dev_get_priv(dev);
        struct mmc_config *cfg = &plat->cfg;
+       struct sdhci_host *host = &priv->host;
        int ret;
 
        host->name = dev->name;