mach-exynos: clock: restore calling dead exynos4_get_mmc_clk()

After rework of code by:

commit: d952796 Exynos5: Use clock_get_periph_rate generic API

function get_mmc_clk() always returns -1 for Exynos 4.

This was caused by omitting, that SDHCI driver for Exynos 4,
calls get_mmc_clk(), with mmc device number as argument,
instead of pinmux peripheral id, like DW MMC driver for Exynos 5.

By this commit, the code directly calls a proper function
to get mmc clock for Exynos 4, without checking the peripheral id.

Tested on: Odroid U3/X2, Trats, Trats2, Odroid XU3, Snow (by Simon).

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c
index 1c6baa1..18eadf5 100644 (file)
--- a/arch/arm/mach-exynos/clock.c
+++ b/arch/arm/mach-exynos/clock.c
@@ -1661,6 +1661,9 @@ unsigned long get_mmc_clk(int dev_index)
 {
        enum periph_id id;
 
+       if (cpu_is_exynos4())
+               return exynos4_get_mmc_clk(dev_index);
+
        switch (dev_index) {
        case 0:
                id = PERIPH_ID_SDMMC0;
@@ -1679,12 +1682,7 @@ unsigned long get_mmc_clk(int dev_index)
                return -1;
        }
 
-       if (cpu_is_exynos5())
-               return clock_get_periph_rate(id);
-       else if (cpu_is_exynos4())
-               return exynos4_get_mmc_clk(dev_index);
-
-       return 0;
+       return clock_get_periph_rate(id);
 }
 
 void set_mmc_clk(int dev_index, unsigned int div)