[PATCH] drm/exynos/dsi: fix bridge_node DT parsing

Marek Szyprowski m.szyprowski at samsung.com
Wed Apr 12 14:13:09 UTC 2017


Hi Hoegeun,

On 2017-04-12 15:58, Hoegeun Kwon wrote:
> On 04/12/2017 04:22 PM, Andrzej Hajda wrote:
>> DSIM uses MIC bridge which is between DECON and DSIM, so the driver
>> should expect bridge node on input side.
>>
>> Fixes: 86418f9 ("drm: convert drivers to use of_graph_get_remote_node")
>> Signed-off-by: Andrzej Hajda <a.hajda at samsung.com>
>> ---
>>   drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c 
>> b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
>> index dcb50d4d..3ae459f 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
>> @@ -1659,7 +1659,7 @@ static int exynos_dsi_parse_dt(struct 
>> exynos_dsi *dsi)
>>         of_node_put(ep);
>>   -    dsi->bridge_node = of_graph_get_remote_node(node, 
>> DSI_PORT_OUT, 0);
>> +    dsi->bridge_node = of_graph_get_remote_node(node, DSI_PORT_IN, 0);
>>       if (!dsi->bridge_node)
>>           return -EINVAL;
>
> Hi Andrzej,
>
> The of_graph_get_remote_node() does not exist in the kernel.
> Also this patch  does not apply('git am') on drm-next tree.
> Is this what you mean?
>         dsi->bridge_node = of_graph_get_endpoint_by_regs(node, 
> DSI_PORT_IN, 0);
>         if (!dsi->bridge_node)
>                 return -EINVAL;

Please check latest drm-next branch at 
git://people.freedesktop.org/~airlied/linux.git

Commit 86418f90a4c "drm: convert drivers to use 
of_graph_get_remote_node" got merged
via drm-misc tree and Andrzej's patch is a fix for it.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland



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