diff options
| author | Rob Herring <robh@kernel.org> | 2017-03-29 20:55:46 +0200 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-04-06 23:00:27 +0200 |
| commit | ebc9446135671b89c2397f438af45d9cef0d1368 (patch) | |
| tree | fa1bf0c176711e21ccec628699736eab39d4c552 /drivers/gpu/drm/mediatek | |
| parent | drm: convert drivers to use of_graph_get_remote_node (diff) | |
| download | linux-ebc9446135671b89c2397f438af45d9cef0d1368.tar.xz linux-ebc9446135671b89c2397f438af45d9cef0d1368.zip | |
drm: convert drivers to use drm_of_find_panel_or_bridge
Similar to the previous commit, convert drivers open coding OF graph
parsing to use drm_of_find_panel_or_bridge instead.
This changes some error messages to debug messages (in the graph core).
Graph connections are often "no connects" depending on the particular
board, so we want to avoid spurious messages. Plus the kernel is not a
DT validator.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[seanpaul dropped rockchip changes since they're now obsolete]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dsi.c | 23 |
1 files changed, 5 insertions, 18 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index dd71cbb1a622..4d837b29ee9e 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -16,11 +16,11 @@ #include <drm/drm_crtc_helper.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_panel.h> +#include <drm/drm_of.h> #include <linux/clk.h> #include <linux/component.h> #include <linux/of.h> #include <linux/of_platform.h> -#include <linux/of_graph.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <video/videomode.h> @@ -801,7 +801,6 @@ static int mtk_dsi_probe(struct platform_device *pdev) { struct mtk_dsi *dsi; struct device *dev = &pdev->dev; - struct device_node *remote_node, *endpoint; struct resource *regs; int comp_id; int ret; @@ -813,22 +812,10 @@ static int mtk_dsi_probe(struct platform_device *pdev) dsi->host.ops = &mtk_dsi_ops; dsi->host.dev = dev; - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); - if (endpoint) { - remote_node = of_graph_get_remote_port_parent(endpoint); - if (!remote_node) { - dev_err(dev, "No panel connected\n"); - return -ENODEV; - } - - dsi->bridge = of_drm_find_bridge(remote_node); - dsi->panel = of_drm_find_panel(remote_node); - of_node_put(remote_node); - if (!dsi->bridge && !dsi->panel) { - dev_info(dev, "Waiting for bridge or panel driver\n"); - return -EPROBE_DEFER; - } - } + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, + &dsi->panel, &dsi->bridge); + if (ret) + return ret; dsi->engine_clk = devm_clk_get(dev, "engine"); if (IS_ERR(dsi->engine_clk)) { |