[PATCH v8 1/2] video: drm: exynos: Add display-timing node parsing using video helper function

[Stéphane Marchesin]

On Wed, Feb 27, 2013 at 11:21 AM, Stéphane Marchesin
<stephane.marchesin at gmail.com> wrote:
> On Wed, Feb 27, 2013 at 3:49 AM, Vikas Sajjan <vikas.sajjan at linaro.org> wrote:
>> Add support for parsing the display-timing node using video helper
>> function.
>>
>> The DT node parsing and pinctrl selection 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 at samsung.com>
>> Signed-off-by: Vikas Sajjan <vikas.sajjan at linaro.org>
>> ---
>>  drivers/gpu/drm/exynos/exynos_drm_fimd.c |   25 +++++++++++++++++++++----
>>  1 file changed, 21 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..7932dc2 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 +884,26 @@ 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()\n"
>> +                               "with return value: %d\n", ret);
>> +                       return ret;
>
> Here I think you leak pdata in the error path.
>

Hmm nevermind it goes away with the dev.

Stéphane

> Stéphane
>
>> +               }
>> +       } 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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