Add support for parsing the display-timing node using video helper
function.
The DT node parsing is done only if 'dev.of_node'
exists and the NON-DT logic is still maintained under the 'else' part.
Signed-off-by: Leela Krishna Amudala <l.krishna@xxxxxxxxxxx>
Signed-off-by: Vikas Sajjan <vikas.sajjan@xxxxxxxxxx>
Acked-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 9537761..e323cf9 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -20,6 +20,7 @@
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
+#include <video/of_display_timing.h>
#include <video/samsung_fimd.h>
#include <drm/exynos_drm.h>
@@ -883,10 +884,25 @@ static int fimd_probe(struct platform_device *pdev)
DRM_DEBUG_KMS("%s\n", __FILE__);
- pdata = pdev->dev.platform_data;
- if (!pdata) {
- dev_err(dev, "no platform data specified\n");
- return -EINVAL;
+ if (pdev->dev.of_node) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ DRM_ERROR("memory allocation for pdata failed\n");
+ return -ENOMEM;
+ }
+
+ ret = of_get_fb_videomode(dev->of_node, &pdata->panel.timing,
+ OF_USE_NATIVE_MODE);
+ if (ret) {
+ DRM_ERROR("failed: of_get_fb_videomode() : %d\n", ret);
+ return ret;
+ }
+ } else {
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ DRM_ERROR("no platform data specified\n");
+ return -EINVAL;
+ }
}
panel = &pdata->panel;
--
1.7.9.5
--
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