Hi, Bibby: On Wed, 2018-09-05 at 16:31 +0800, Bibby Hsieh wrote: > From: chunhui dai <chunhui.dai@xxxxxxxxxxxx> > > Using new API for finding bridge. > This patch looks good, but your description is so simple that we don't know why you want to do this. In [1], Rob wants to clean up OF graph API, so in [2], mtk_dsi.c use drm_of_find_panel_or_bridge() to do this clean-up. If your reason is clean-up, describe it in commit message. [1] https://lkml.org/lkml/2017/2/3/716 [2] https://lkml.org/lkml/2017/2/3/719 Regards, CK > Signed-off-by: chunhui dai <chunhui.dai@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/mtk_dpi.c | 17 +++++++---------- > 1 file changed, 7 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c > index 3758cfeb586b..ed2c153c70a2 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > @@ -14,6 +14,7 @@ > #include <drm/drmP.h> > #include <drm/drm_crtc.h> > #include <drm/drm_crtc_helper.h> > +#include <drm/drm_of.h> > #include <linux/kernel.h> > #include <linux/component.h> > #include <linux/platform_device.h> > @@ -708,7 +709,6 @@ static int mtk_dpi_probe(struct platform_device *pdev) > struct device *dev = &pdev->dev; > struct mtk_dpi *dpi; > struct resource *mem; > - struct device_node *bridge_node; > int comp_id; > const struct of_device_id *match; > int ret; > @@ -758,16 +758,13 @@ static int mtk_dpi_probe(struct platform_device *pdev) > return -EINVAL; > } > > - bridge_node = of_graph_get_remote_node(dev->of_node, 0, 0); > - if (!bridge_node) > - return -ENODEV; > - > - dev_info(dev, "Found bridge node: %pOF\n", bridge_node); > - > - dpi->bridge = of_drm_find_bridge(bridge_node); > - of_node_put(bridge_node); > - if (!dpi->bridge) > + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, > + NULL, &dpi->bridge); > + if (ret) { > + dev_err(dev, "Failed to find panel or bridge: %d\n", ret); > return -EPROBE_DEFER; > + } > + dev_info(dev, "Found bridge node: %pOF\n", dpi->bridge); > > comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DPI); > if (comp_id < 0) { _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
