From 5c17414da2c0e246f4c93a9ce0232118aae292b2 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 26 Feb 2020 13:24:45 +0200 Subject: [PATCH] drm/omap: dss: Fix output next device lookup in DT The DSS core looks up the next device connected to an output by traversing the OF graph. It currently hardcodes the local port number to 0, which breaks any output with a different port number (SDI on OMAP3 and any DPI output but the first one). Fix this by repurposing the currently unused of_ports bitmask in omap_dss_device with an of_port output port number, and use it to traverse the OF graph. Signed-off-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen Tested-by: Sebastian Reichel Reviewed-by: Sebastian Reichel Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-26-laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c | 2 +- drivers/gpu/drm/omapdrm/displays/connector-hdmi.c | 2 +- drivers/gpu/drm/omapdrm/displays/encoder-opa362.c | 2 +- drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c | 2 +- drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 2 +- drivers/gpu/drm/omapdrm/dss/dpi.c | 2 +- drivers/gpu/drm/omapdrm/dss/dsi.c | 2 +- drivers/gpu/drm/omapdrm/dss/hdmi4.c | 2 +- drivers/gpu/drm/omapdrm/dss/hdmi5.c | 2 +- drivers/gpu/drm/omapdrm/dss/omapdss.h | 4 ++-- drivers/gpu/drm/omapdrm/dss/output.c | 3 +-- drivers/gpu/drm/omapdrm/dss/sdi.c | 2 +- drivers/gpu/drm/omapdrm/dss/venc.c | 2 +- 13 files changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c index 0d20fab605d71..f36aa1885d39a 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c @@ -55,7 +55,7 @@ static int tvc_probe(struct platform_device *pdev) dssdev->type = OMAP_DISPLAY_TYPE_VENC; dssdev->display = true; dssdev->owner = THIS_MODULE; - dssdev->of_ports = BIT(0); + dssdev->of_port = 0; omapdss_display_init(dssdev); omapdss_device_register(dssdev); diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c index f5d69d810bb81..37c212491cd3e 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c @@ -139,7 +139,7 @@ static int hdmic_probe(struct platform_device *pdev) dssdev->type = OMAP_DISPLAY_TYPE_HDMI; dssdev->display = true; dssdev->owner = THIS_MODULE; - dssdev->of_ports = BIT(0); + dssdev->of_port = 0; dssdev->ops_flags = ddata->hpd_gpio ? OMAP_DSS_DEVICE_OP_DETECT | OMAP_DSS_DEVICE_OP_HPD : 0; diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c b/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c index b992387ed6748..252705222ef1d 100644 --- a/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c +++ b/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c @@ -86,7 +86,7 @@ static int opa362_probe(struct platform_device *pdev) dssdev->dev = &pdev->dev; dssdev->type = OMAP_DISPLAY_TYPE_VENC; dssdev->owner = THIS_MODULE; - dssdev->of_ports = BIT(1) | BIT(0); + dssdev->of_port = 1; dssdev->next = omapdss_of_find_connected_device(pdev->dev.of_node, 1); if (IS_ERR(dssdev->next)) { diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c b/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c index 089105c5aa0a0..857ae84cd7d17 100644 --- a/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c +++ b/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c @@ -165,7 +165,7 @@ static int tpd_probe(struct platform_device *pdev) dssdev->dev = &pdev->dev; dssdev->type = OMAP_DISPLAY_TYPE_HDMI; dssdev->owner = THIS_MODULE; - dssdev->of_ports = BIT(1) | BIT(0); + dssdev->of_port = 1; dssdev->ops_flags = OMAP_DSS_DEVICE_OP_DETECT | OMAP_DSS_DEVICE_OP_HPD; diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 3ec6a55e932a5..3484b5d4a91ce 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -1265,7 +1265,7 @@ static int dsicm_probe(struct platform_device *pdev) dssdev->type = OMAP_DISPLAY_TYPE_DSI; dssdev->display = true; dssdev->owner = THIS_MODULE; - dssdev->of_ports = BIT(0); + dssdev->of_port = 0; dssdev->ops_flags = OMAP_DSS_DEVICE_OP_MODES; dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE | diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c b/drivers/gpu/drm/omapdrm/dss/dpi.c index 95147437b990a..462ed6f3118ab 100644 --- a/drivers/gpu/drm/omapdrm/dss/dpi.c +++ b/drivers/gpu/drm/omapdrm/dss/dpi.c @@ -625,7 +625,7 @@ static int dpi_init_output_port(struct dpi_data *dpi, struct device_node *port) out->id = OMAP_DSS_OUTPUT_DPI; out->type = OMAP_DISPLAY_TYPE_DPI; out->dispc_channel = dpi_get_channel(dpi); - out->of_ports = BIT(port_num); + out->of_port = port_num; out->ops = &dpi_ops; out->owner = THIS_MODULE; diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index da16ea095f13a..6379eea124d1b 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -5116,7 +5116,7 @@ static int dsi_init_output(struct dsi_data *dsi) out->dispc_channel = dsi_get_channel(dsi); out->ops = &dsi_ops; out->owner = THIS_MODULE; - out->of_ports = BIT(0); + out->of_port = 0; out->bus_flags = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE | DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE; diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c index 0f557fad4513f..44075718407b3 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c @@ -673,7 +673,7 @@ static int hdmi4_init_output(struct omap_hdmi *hdmi) out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; out->ops = &hdmi_ops; out->owner = THIS_MODULE; - out->of_ports = BIT(0); + out->of_port = 0; out->ops_flags = OMAP_DSS_DEVICE_OP_EDID; r = omapdss_device_init_output(out); diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c index d9463b3325543..1b5bd44ee09d0 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c @@ -657,7 +657,7 @@ static int hdmi5_init_output(struct omap_hdmi *hdmi) out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; out->ops = &hdmi_ops; out->owner = THIS_MODULE; - out->of_ports = BIT(0); + out->of_port = 0; out->ops_flags = OMAP_DSS_DEVICE_OP_EDID; r = omapdss_device_init_output(out); diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h index c5672e5174c56..b48a51d113104 100644 --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h @@ -436,8 +436,8 @@ struct omap_dss_device { /* output instance */ enum omap_dss_output_id id; - /* bitmask of port numbers in DT */ - unsigned int of_ports; + /* port number in DT */ + unsigned int of_port; }; struct omap_dss_driver { diff --git a/drivers/gpu/drm/omapdrm/dss/output.c b/drivers/gpu/drm/omapdrm/dss/output.c index 99a253a424c14..c1ec9d343e531 100644 --- a/drivers/gpu/drm/omapdrm/dss/output.c +++ b/drivers/gpu/drm/omapdrm/dss/output.c @@ -4,7 +4,6 @@ * Author: Archit Taneja */ -#include #include #include #include @@ -24,7 +23,7 @@ int omapdss_device_init_output(struct omap_dss_device *out) int ret; remote_node = of_graph_get_remote_node(out->dev->of_node, - ffs(out->of_ports) - 1, 0); + out->of_port, 0); if (!remote_node) { dev_dbg(out->dev, "failed to find video sink\n"); return 0; diff --git a/drivers/gpu/drm/omapdrm/dss/sdi.c b/drivers/gpu/drm/omapdrm/dss/sdi.c index 3b447c01fa2a9..9092ed3d0ef15 100644 --- a/drivers/gpu/drm/omapdrm/dss/sdi.c +++ b/drivers/gpu/drm/omapdrm/dss/sdi.c @@ -265,7 +265,7 @@ static int sdi_init_output(struct sdi_device *sdi) out->name = "sdi.0"; out->dispc_channel = OMAP_DSS_CHANNEL_LCD; /* We have SDI only on OMAP3, where it's on port 1 */ - out->of_ports = BIT(1); + out->of_port = 1; out->ops = &sdi_ops; out->owner = THIS_MODULE; out->bus_flags = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE /* 15.5.9.1.2 */ diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c index 596a297d58139..e2f480f689b8b 100644 --- a/drivers/gpu/drm/omapdrm/dss/venc.c +++ b/drivers/gpu/drm/omapdrm/dss/venc.c @@ -754,7 +754,7 @@ static int venc_init_output(struct venc_device *venc) out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; out->ops = &venc_ops; out->owner = THIS_MODULE; - out->of_ports = BIT(0); + out->of_port = 0; out->ops_flags = OMAP_DSS_DEVICE_OP_MODES; r = omapdss_device_init_output(out); -- 2.39.5