drm/exynos: fix build warning.

This patch fixes erroneous register read.
reall function needs register base address + offset but
exynos_drm_gsc module used only offset to read a register.
so this patch uses gsc_read function instead of readl.

Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 3e5b456..410175a 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1592,7 +1592,7 @@ static int gsc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
                exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
 
                /* src local path */
-               cfg = readl(GSC_IN_CON);
+               cfg = gsc_read(GSC_IN_CON);
                cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
                cfg |= (GSC_IN_PATH_LOCAL | GSC_IN_LOCAL_FIMD_WB);
                gsc_write(cfg, GSC_IN_CON);