[PATCH] video: drm: exynos: Adds display-timing node parsing using video helper function

[Vikas Sajjan]

This patch adds display-timing node parsing using video helper function

Signed-off-by: Leela Krishna Amudala <l.kris...@samsung.com>
Signed-off-by: Vikas Sajjan <vikas.saj...@linaro.org>
---
 drivers/gpu/drm/exynos/exynos_drm_fimd.c |   35 ++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c 
b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index bf0d9ba..975e7f7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -19,6 +19,7 @@
 #include <linux/clk.h>
 #include <linux/of_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/pinctrl/consumer.h>
 
 #include <video/samsung_fimd.h>
 #include <drm/exynos_drm.h>
@@ -903,21 +904,51 @@ static int __devinit fimd_probe(struct platform_device 
*pdev)
        struct device *dev = &pdev->dev;
        struct fimd_context *ctx;
        struct exynos_drm_subdrv *subdrv;
-       struct exynos_drm_fimd_pdata *pdata;
+       struct exynos_drm_fimd_pdata *pdata = pdev->dev.platform_data;
        struct exynos_drm_panel_info *panel;
+       struct fb_videomode *fbmode;
+       struct device *disp_dev = &pdev->dev;
+       struct pinctrl *pctrl;
        struct resource *res;
        int win;
        int ret = -EINVAL;
 
        DRM_DEBUG_KMS("%s\n", __FILE__);
 
-       pdata = pdev->dev.platform_data;
+       if (pdev->dev.of_node) {
+               pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+               if (!pdata) {
+                       dev_err(dev, "memory allocation for pdata failed\n");
+                       return -ENOMEM;
+               }
+
+               fbmode = devm_kzalloc(dev, sizeof(*fbmode), GFP_KERNEL);
+               if (!fbmode) {
+                       dev_err(dev, "memory allocation for fbmode failed\n");
+                       return -ENOMEM;
+               }
+
+               ret = of_get_fb_videomode(disp_dev->of_node, fbmode, -1);
+               if (ret) {
+                       dev_err(dev, "failed to get fb_videomode\n");
+                       return -EINVAL;
+               }
+               pdata->panel.timing = (struct fb_videomode) *fbmode;
+       }
+
        if (!pdata) {
                dev_err(dev, "no platform data specified\n");
                return -EINVAL;
        }
 
+       pctrl = devm_pinctrl_get_select_default(dev);
+       if (IS_ERR(pctrl)) {
+               dev_err(dev, "no pinctrl data provided.\n");
+               return -EINVAL;
+       }
+
        panel = &pdata->panel;
+
        if (!panel) {
                dev_err(dev, "panel is null.\n");
                return -EINVAL;
-- 
1.7.9.5

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