diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/imx/parallel-display.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/imx/parallel-display.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/kernel/drivers/gpu/drm/imx/parallel-display.c b/kernel/drivers/gpu/drm/imx/parallel-display.c index 74a9ce40d..2e9b9f1b5 100644 --- a/kernel/drivers/gpu/drm/imx/parallel-display.c +++ b/kernel/drivers/gpu/drm/imx/parallel-display.c @@ -21,6 +21,7 @@ #include <drm/drm_panel.h> #include <linux/videodev2.h> #include <video/of_display_timing.h> +#include <linux/of_graph.h> #include "imx-drm.h" @@ -53,7 +54,11 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector) if (imxpd->panel && imxpd->panel->funcs && imxpd->panel->funcs->get_modes) { + struct drm_display_info *di = &connector->display_info; + num_modes = imxpd->panel->funcs->get_modes(imxpd->panel); + if (!imxpd->bus_format && di->num_bus_formats) + imxpd->bus_format = di->bus_formats[0]; if (num_modes > 0) return num_modes; } @@ -208,7 +213,7 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data) { struct drm_device *drm = data; struct device_node *np = dev->of_node; - struct device_node *panel_node; + struct device_node *port; const u8 *edidp; struct imx_parallel_display *imxpd; int ret; @@ -234,11 +239,19 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data) imxpd->bus_format = MEDIA_BUS_FMT_RGB666_1X24_CPADHI; } - panel_node = of_parse_phandle(np, "fsl,panel", 0); - if (panel_node) { - imxpd->panel = of_drm_find_panel(panel_node); - if (!imxpd->panel) - return -EPROBE_DEFER; + /* port@1 is the output port */ + port = of_graph_get_port_by_id(np, 1); + if (port) { + struct device_node *endpoint, *remote; + + endpoint = of_get_child_by_name(port, "endpoint"); + if (endpoint) { + remote = of_graph_get_remote_port_parent(endpoint); + if (remote) + imxpd->panel = of_drm_find_panel(remote); + if (!imxpd->panel) + return -EPROBE_DEFER; + } } imxpd->dev = dev; |