Re: [PATCH v2] drm/exynos/dsi: Remove error handling for bridge_node DT parsing
Hello Tobias, Sorry for late reply. On 06/14/2017 09:30 PM, Tobias Jakobi wrote: Hello Hoegeun, my last question (does this regress the case "node required, but absent") still stands. Hoegeun Kwon wrote: Remove the error handling of bridge_node because the bridge_node is required optionally. I don't think a construction like that exists. Either it's required, or it's optional. "required optionally" makes no sense to me (but I'm not a native speaker). - Tobias The bridge_node is optional. I will change commit message and send ver3 patch. Best regards, Hoegeun For example, In case of Exynos SoC, a bridge device such as mDNIe and MIC could be placed between Display Controller and MIPI DSI device but the bridge device is required optionally. Signed-off-by: Hoegeun Kwon --- Hi Inki and Tobias, Thanks for your review. Changes for V2: - Modified the commit message in more detail than before. Best Regards, Hoegeun drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index a11b795..6ee0dac 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1651,8 +1651,6 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi) return ret; dsi->bridge_node = of_graph_get_remote_node(node, DSI_PORT_IN, 0); - if (!dsi->bridge_node) - return -EINVAL; return 0; }
Re: [PATCH v2] drm/exynos/dsi: Remove error handling for bridge_node DT parsing
Hello Hoegeun, my last question (does this regress the case "node required, but absent") still stands. Hoegeun Kwon wrote: > Remove the error handling of bridge_node because the bridge_node is > required optionally. I don't think a construction like that exists. Either it's required, or it's optional. "required optionally" makes no sense to me (but I'm not a native speaker). - Tobias > For example, In case of Exynos SoC, a bridge device such as mDNIe and > MIC could be placed between Display Controller and MIPI DSI device but > the bridge device is required optionally. > > Signed-off-by: Hoegeun Kwon > --- > > Hi Inki and Tobias, > > Thanks for your review. > > Changes for V2: > - Modified the commit message in more detail than before. > > Best Regards, > Hoegeun > > drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c > b/drivers/gpu/drm/exynos/exynos_drm_dsi.c > index a11b795..6ee0dac 100644 > --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c > +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c > @@ -1651,8 +1651,6 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi) > return ret; > > dsi->bridge_node = of_graph_get_remote_node(node, DSI_PORT_IN, 0); > - if (!dsi->bridge_node) > - return -EINVAL; > > return 0; > } >
[PATCH v2] drm/exynos/dsi: Remove error handling for bridge_node DT parsing
Remove the error handling of bridge_node because the bridge_node is required optionally. For example, In case of Exynos SoC, a bridge device such as mDNIe and MIC could be placed between Display Controller and MIPI DSI device but the bridge device is required optionally. Signed-off-by: Hoegeun Kwon --- Hi Inki and Tobias, Thanks for your review. Changes for V2: - Modified the commit message in more detail than before. Best Regards, Hoegeun drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index a11b795..6ee0dac 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1651,8 +1651,6 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi) return ret; dsi->bridge_node = of_graph_get_remote_node(node, DSI_PORT_IN, 0); - if (!dsi->bridge_node) - return -EINVAL; return 0; } -- 1.9.1
