#include <linux/component.h>
#include <linux/module.h>
#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_panel.h>
#include "imx-drm.h"
-#define con_to_imxpd(x) container_of(x, struct imx_parallel_display, connector)
-#define enc_to_imxpd(x) container_of(x, struct imx_parallel_display, encoder)
-
struct imx_parallel_display {
struct drm_connector connector;
struct drm_encoder encoder;
void *edid;
int edid_len;
u32 bus_format;
+ u32 bus_flags;
struct drm_display_mode mode;
struct drm_panel *panel;
+ struct drm_bridge *bridge;
};
+static inline struct imx_parallel_display *con_to_imxpd(struct drm_connector *c)
+{
+ return container_of(c, struct imx_parallel_display, connector);
+}
+
+static inline struct imx_parallel_display *enc_to_imxpd(struct drm_encoder *e)
+{
+ return container_of(e, struct imx_parallel_display, encoder);
+}
+
static enum drm_connector_status imx_pd_connector_detect(
struct drm_connector *connector, bool force)
{
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;
}
if (np) {
struct drm_display_mode *mode = drm_mode_create(connector->dev);
+ int ret;
if (!mode)
return -EINVAL;
- of_get_drm_display_mode(np, &imxpd->mode, OF_USE_NATIVE_MODE);
+
+ ret = of_get_drm_display_mode(np, &imxpd->mode,
+ &imxpd->bus_flags,
+ OF_USE_NATIVE_MODE);
+ if (ret)
+ return ret;
+
drm_mode_copy(mode, &imxpd->mode);
mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
drm_mode_probed_add(connector, mode);
return &imxpd->encoder;
}
-static void imx_pd_encoder_dpms(struct drm_encoder *encoder, int mode)
-{
- struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
-
- if (mode != DRM_MODE_DPMS_ON)
- drm_panel_disable(imxpd->panel);
- else
- drm_panel_enable(imxpd->panel);
-}
-
-static void imx_pd_encoder_prepare(struct drm_encoder *encoder)
-{
- struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
- imx_drm_set_bus_config(encoder, imxpd->bus_format, 2, 3,
- imxpd->connector.display_info.bus_flags);
-}
-
-static void imx_pd_encoder_commit(struct drm_encoder *encoder)
+static void imx_pd_encoder_enable(struct drm_encoder *encoder)
{
struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
drm_panel_enable(imxpd->panel);
}
-static void imx_pd_encoder_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *orig_mode,
- struct drm_display_mode *mode)
-{
-}
-
static void imx_pd_encoder_disable(struct drm_encoder *encoder)
{
struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
drm_panel_unprepare(imxpd->panel);
}
+static int imx_pd_encoder_atomic_check(struct drm_encoder *encoder,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ struct imx_crtc_state *imx_crtc_state = to_imx_crtc_state(crtc_state);
+ struct drm_display_info *di = &conn_state->connector->display_info;
+ struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
+
+ if (!imxpd->bus_format && di->num_bus_formats) {
+ imx_crtc_state->bus_flags = di->bus_flags;
+ imx_crtc_state->bus_format = di->bus_formats[0];
+ } else {
+ imx_crtc_state->bus_flags = imxpd->bus_flags;
+ imx_crtc_state->bus_format = imxpd->bus_format;
+ }
+ imx_crtc_state->di_hsync_pin = 2;
+ imx_crtc_state->di_vsync_pin = 3;
+
+ return 0;
+}
+
static const struct drm_connector_funcs imx_pd_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = imx_pd_connector_detect,
.destroy = imx_drm_connector_destroy,
+ .reset = drm_atomic_helper_connector_reset,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static const struct drm_connector_helper_funcs imx_pd_connector_helper_funcs = {
};
static const struct drm_encoder_helper_funcs imx_pd_encoder_helper_funcs = {
- .dpms = imx_pd_encoder_dpms,
- .prepare = imx_pd_encoder_prepare,
- .commit = imx_pd_encoder_commit,
- .mode_set = imx_pd_encoder_mode_set,
+ .enable = imx_pd_encoder_enable,
.disable = imx_pd_encoder_disable,
+ .atomic_check = imx_pd_encoder_atomic_check,
};
static int imx_pd_register(struct drm_device *drm,
struct imx_parallel_display *imxpd)
{
+ struct drm_encoder *encoder = &imxpd->encoder;
int ret;
- ret = imx_drm_encoder_parse_of(drm, &imxpd->encoder,
- imxpd->dev->of_node);
+ ret = imx_drm_encoder_parse_of(drm, encoder, imxpd->dev->of_node);
if (ret)
return ret;
*/
imxpd->connector.dpms = DRM_MODE_DPMS_OFF;
- drm_encoder_helper_add(&imxpd->encoder, &imx_pd_encoder_helper_funcs);
- drm_encoder_init(drm, &imxpd->encoder, &imx_pd_encoder_funcs,
+ drm_encoder_helper_add(encoder, &imx_pd_encoder_helper_funcs);
+ drm_encoder_init(drm, encoder, &imx_pd_encoder_funcs,
DRM_MODE_ENCODER_NONE, NULL);
- drm_connector_helper_add(&imxpd->connector,
- &imx_pd_connector_helper_funcs);
- drm_connector_init(drm, &imxpd->connector, &imx_pd_connector_funcs,
- DRM_MODE_CONNECTOR_VGA);
+ if (!imxpd->bridge) {
+ drm_connector_helper_add(&imxpd->connector,
+ &imx_pd_connector_helper_funcs);
+ drm_connector_init(drm, &imxpd->connector,
+ &imx_pd_connector_funcs,
+ DRM_MODE_CONNECTOR_VGA);
+ }
if (imxpd->panel)
drm_panel_attach(imxpd->panel, &imxpd->connector);
- drm_mode_connector_attach_encoder(&imxpd->connector, &imxpd->encoder);
+ if (imxpd->bridge) {
+ imxpd->bridge->encoder = encoder;
+ encoder->bridge = imxpd->bridge;
+ ret = drm_bridge_attach(drm, imxpd->bridge);
+ if (ret < 0) {
+ dev_err(imxpd->dev, "failed to attach bridge: %d\n",
+ ret);
+ return ret;
+ }
+ } else {
+ drm_mode_connector_attach_encoder(&imxpd->connector, encoder);
+ }
return 0;
}
const u8 *edidp;
struct imx_parallel_display *imxpd;
int ret;
+ u32 bus_format = 0;
const char *fmt;
imxpd = devm_kzalloc(dev, sizeof(*imxpd), GFP_KERNEL);
ret = of_property_read_string(np, "interface-pix-fmt", &fmt);
if (!ret) {
if (!strcmp(fmt, "rgb24"))
- imxpd->bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+ bus_format = MEDIA_BUS_FMT_RGB888_1X24;
else if (!strcmp(fmt, "rgb565"))
- imxpd->bus_format = MEDIA_BUS_FMT_RGB565_1X16;
+ bus_format = MEDIA_BUS_FMT_RGB565_1X16;
else if (!strcmp(fmt, "bgr666"))
- imxpd->bus_format = MEDIA_BUS_FMT_RGB666_1X18;
+ bus_format = MEDIA_BUS_FMT_RGB666_1X18;
else if (!strcmp(fmt, "lvds666"))
- imxpd->bus_format = MEDIA_BUS_FMT_RGB666_1X24_CPADHI;
+ bus_format = MEDIA_BUS_FMT_RGB666_1X24_CPADHI;
}
+ imxpd->bus_format = bus_format;
/* port@1 is the output port */
ep = of_graph_get_endpoint_by_regs(np, 1, -1);
struct device_node *remote;
remote = of_graph_get_remote_port_parent(ep);
+ if (!remote) {
+ dev_warn(dev, "endpoint %s not connected\n",
+ ep->full_name);
+ of_node_put(ep);
+ return -ENODEV;
+ }
of_node_put(ep);
- if (remote) {
- imxpd->panel = of_drm_find_panel(remote);
- of_node_put(remote);
+
+ imxpd->panel = of_drm_find_panel(remote);
+ if (imxpd->panel) {
+ dev_dbg(dev, "found panel %s\n", remote->full_name);
+ } else {
+ imxpd->bridge = of_drm_find_bridge(remote);
+ if (imxpd->bridge)
+ dev_dbg(dev, "found bridge %s\n",
+ remote->full_name);
}
- if (!imxpd->panel)
+ if (!imxpd->panel && !imxpd->bridge) {
+ dev_dbg(dev, "waiting for panel or bridge %s\n",
+ remote->full_name);
+ of_node_put(remote);
return -EPROBE_DEFER;
+ }
+ of_node_put(remote);
}
imxpd->dev = dev;
projects / deliverable / linux.git / blobdiff