diff options
Diffstat (limited to 'drivers/gpu/drm/drm_of.c')
| -rw-r--r-- | drivers/gpu/drm/drm_of.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 5c2abc9eca9c..4f65ce729a47 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -55,7 +55,8 @@ EXPORT_SYMBOL(drm_of_crtc_port_mask); * and generate the DRM mask of CRTCs which may be attached to this * encoder. * - * See Documentation/devicetree/bindings/graph.txt for the bindings. + * See https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/graph.yaml + * for the bindings. */ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, struct device_node *port) @@ -106,7 +107,9 @@ EXPORT_SYMBOL_GPL(drm_of_component_match_add); * Parse the platform device OF node and bind all the components associated * with the master. Interface ports are added before the encoders in order to * satisfy their .bind requirements - * See Documentation/devicetree/bindings/graph.txt for the bindings. + * + * See https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/graph.yaml + * for the bindings. * * Returns zero if successful, or one of the standard error codes if it fails. */ @@ -268,9 +271,9 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, *panel = NULL; } - /* No panel found yet, check for a bridge next. */ if (bridge) { if (ret) { + /* No panel found yet, check for a bridge next. */ *bridge = of_drm_find_bridge(remote); if (*bridge) ret = 0; @@ -564,6 +567,8 @@ EXPORT_SYMBOL_GPL(drm_of_get_data_lanes_count_ep); * Gets parent DSI bus for a DSI device controlled through a bus other * than MIPI-DCS (SPI, I2C, etc.) using the Device Tree. * + * This function assumes that the device's port@0 is the DSI input. + * * Returns pointer to mipi_dsi_host if successful, -EINVAL if the * request is unsupported, -EPROBE_DEFER if the DSI host is found but * not available, or -ENODEV otherwise. @@ -576,7 +581,7 @@ struct mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev) /* * Get first endpoint child from device. */ - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); + endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); if (!endpoint) return ERR_PTR(-ENODEV); |