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drm/exynos: Add display-timing node parsing using video helper function

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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@samsung.com>
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Acked-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Vikas Sajjan 2013-03-07 12:15:21 +05:30 committed by Inki Dae
parent 7ddcc7364a
commit 7f4596f4ae
1 changed files with 20 additions and 4 deletions
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24
drivers/gpu/drm/exynos/exynos_drm_fimd.c
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@ -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>
@ -884,10 +885,25 @@ 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;