mmc: dw_mmc: exynos: Add a new compatible string for exynos5420

The Exynos5420 has a DWMMC controller which is different from prior
versions.This patch adds a new compatible string for Exynos5420.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 866edef2e820..6a1fa2110a05 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -39,6 +39,7 @@ enum dw_mci_exynos_type {
         DW_MCI_TYPE_EXYNOS4210,
         DW_MCI_TYPE_EXYNOS4412,
         DW_MCI_TYPE_EXYNOS5250,
+        DW_MCI_TYPE_EXYNOS5420,
 };
 
 /* Exynos implementation specific driver private data */
@@ -62,6 +63,9 @@ static struct dw_mci_exynos_compatible {
         }, {
                 .compatible     = "samsung,exynos5250-dw-mshc",
                 .ctrl_type      = DW_MCI_TYPE_EXYNOS5250,
+        }, {
+                .compatible     = "samsung,exynos5420-dw-mshc",
+                .ctrl_type      = DW_MCI_TYPE_EXYNOS5420,
         },
 };
 
@@ -90,7 +94,8 @@ static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 {
         struct dw_mci_exynos_priv_data *priv = host->priv;
 
-        if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5250)
+        if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5250 ||
+                priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420)
                 host->bus_hz /= (priv->ciu_div + 1);
         else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412)
                 host->bus_hz /= EXYNOS4412_FIXED_CIU_CLK_DIV;
@@ -173,6 +178,8 @@ static const struct of_device_id dw_mci_exynos_match[] = {
                         .data = &exynos_drv_data, },
         { .compatible = "samsung,exynos5250-dw-mshc",
                         .data = &exynos_drv_data, },
+        { .compatible = "samsung,exynos5420-dw-mshc",
+                        .data = &exynos_drv_data, },
         {},
 };
 MODULE_DEVICE_TABLE(of, dw_mci_exynos_match);