Choose this option if you have an R-Car chipset.
If M is selected the module will be called rcar-du-drm.
-config DRM_RCAR_HDMI
- bool "R-Car DU HDMI Encoder Support"
- depends on DRM_RCAR_DU
- help
- Enable support for external HDMI encoders.
-
config DRM_RCAR_LVDS
bool "R-Car DU LVDS Encoder Support"
depends on DRM_RCAR_DU
rcar_du_group.o \
rcar_du_kms.o \
rcar_du_lvdscon.o \
- rcar_du_plane.o \
- rcar_du_vgacon.o
-
-rcar-du-drm-$(CONFIG_DRM_RCAR_HDMI) += rcar_du_hdmienc.o
+ rcar_du_plane.o
rcar-du-drm-$(CONFIG_DRM_RCAR_LVDS) += rcar_du_lvdsenc.o
#include "rcar_du_drv.h"
#include "rcar_du_encoder.h"
-#include "rcar_du_hdmienc.h"
#include "rcar_du_kms.h"
#include "rcar_du_lvdscon.h"
#include "rcar_du_lvdsenc.h"
-#include "rcar_du_vgacon.h"
/* -----------------------------------------------------------------------------
* Encoder
struct rcar_du_encoder *renc = to_rcar_encoder(encoder);
struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
const struct drm_display_mode *mode = &crtc_state->mode;
- const struct drm_display_mode *panel_mode;
struct drm_connector *connector = conn_state->connector;
struct drm_device *dev = encoder->dev;
- /* DAC encoders have currently no restriction on the mode. */
- if (encoder->encoder_type == DRM_MODE_ENCODER_DAC)
- return 0;
+ /*
+ * Only panel-related encoder types require validation here, everything
+ * else is handled by the bridge drivers.
+ */
+ if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
+ const struct drm_display_mode *panel_mode;
- if (list_empty(&connector->modes)) {
- dev_dbg(dev->dev, "encoder: empty modes list\n");
- return -EINVAL;
- }
+ if (list_empty(&connector->modes)) {
+ dev_dbg(dev->dev, "encoder: empty modes list\n");
+ return -EINVAL;
+ }
- panel_mode = list_first_entry(&connector->modes,
- struct drm_display_mode, head);
+ panel_mode = list_first_entry(&connector->modes,
+ struct drm_display_mode, head);
- /* We're not allowed to modify the resolution. */
- if (mode->hdisplay != panel_mode->hdisplay ||
- mode->vdisplay != panel_mode->vdisplay)
- return -EINVAL;
+ /* We're not allowed to modify the resolution. */
+ if (mode->hdisplay != panel_mode->hdisplay ||
+ mode->vdisplay != panel_mode->vdisplay)
+ return -EINVAL;
- /* The flat panel mode is fixed, just copy it to the adjusted mode. */
- drm_mode_copy(adjusted_mode, panel_mode);
+ /*
+ * The flat panel mode is fixed, just copy it to the adjusted
+ * mode.
+ */
+ drm_mode_copy(adjusted_mode, panel_mode);
+ }
if (renc->lvds)
rcar_du_lvdsenc_atomic_check(renc->lvds, adjusted_mode);
{
struct rcar_du_encoder *renc;
struct drm_encoder *encoder;
+ struct drm_bridge *bridge = NULL;
unsigned int encoder_type;
int ret;
break;
}
+ if (enc_node) {
+ /* Locate the DRM bridge from the encoder DT node. */
+ bridge = of_drm_find_bridge(enc_node);
+ if (!bridge) {
+ ret = -EPROBE_DEFER;
+ goto done;
+ }
+ }
+
switch (type) {
case RCAR_DU_ENCODER_VGA:
encoder_type = DRM_MODE_ENCODER_DAC;
break;
}
- if (type == RCAR_DU_ENCODER_HDMI) {
- ret = rcar_du_hdmienc_init(rcdu, renc, enc_node);
- if (ret < 0)
- goto done;
- } else {
- ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
- encoder_type, NULL);
- if (ret < 0)
- goto done;
-
- drm_encoder_helper_add(encoder, &encoder_helper_funcs);
- }
-
- switch (encoder_type) {
- case DRM_MODE_ENCODER_LVDS:
- ret = rcar_du_lvds_connector_init(rcdu, renc, con_node);
- break;
-
- case DRM_MODE_ENCODER_DAC:
- ret = rcar_du_vga_connector_init(rcdu, renc);
- break;
+ ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
+ encoder_type, NULL);
+ if (ret < 0)
+ goto done;
- case DRM_MODE_ENCODER_TMDS:
- /* connector managed by the bridge driver */
- break;
+ drm_encoder_helper_add(encoder, &encoder_helper_funcs);
- default:
- ret = -EINVAL;
- break;
+ if (bridge) {
+ /*
+ * Attach the bridge to the encoder. The bridge will create the
+ * connector.
+ */
+ ret = drm_bridge_attach(encoder, bridge, NULL);
+ if (ret) {
+ drm_encoder_cleanup(encoder);
+ return ret;
+ }
+ } else {
+ /* There's no bridge, create the connector manually. */
+ switch (output) {
+ case RCAR_DU_OUTPUT_LVDS0:
+ case RCAR_DU_OUTPUT_LVDS1:
+ ret = rcar_du_lvds_connector_init(rcdu, renc, con_node);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
}
done:
struct drm_panel;
struct rcar_du_device;
-struct rcar_du_hdmienc;
struct rcar_du_lvdsenc;
enum rcar_du_encoder_type {
struct drm_encoder base;
enum rcar_du_output output;
struct rcar_du_connector *connector;
- struct rcar_du_hdmienc *hdmi;
struct rcar_du_lvdsenc *lvds;
};
+++ /dev/null
-/*
- * R-Car Display Unit HDMI Encoder
- *
- * Copyright (C) 2014 Renesas Electronics Corporation
- *
- * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/slab.h>
-
-#include <drm/drmP.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_crtc_helper.h>
-
-#include "rcar_du_drv.h"
-#include "rcar_du_encoder.h"
-#include "rcar_du_hdmienc.h"
-#include "rcar_du_lvdsenc.h"
-
-struct rcar_du_hdmienc {
- struct rcar_du_encoder *renc;
- bool enabled;
-};
-
-#define to_rcar_hdmienc(e) (to_rcar_encoder(e)->hdmi)
-
-static void rcar_du_hdmienc_disable(struct drm_encoder *encoder)
-{
- struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-
- if (hdmienc->renc->lvds)
- rcar_du_lvdsenc_enable(hdmienc->renc->lvds, encoder->crtc,
- false);
-
- hdmienc->enabled = false;
-}
-
-static void rcar_du_hdmienc_enable(struct drm_encoder *encoder)
-{
- struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-
- if (hdmienc->renc->lvds)
- rcar_du_lvdsenc_enable(hdmienc->renc->lvds, encoder->crtc,
- true);
-
- hdmienc->enabled = true;
-}
-
-static int rcar_du_hdmienc_atomic_check(struct drm_encoder *encoder,
- struct drm_crtc_state *crtc_state,
- struct drm_connector_state *conn_state)
-{
- struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
- struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
-
- if (hdmienc->renc->lvds)
- rcar_du_lvdsenc_atomic_check(hdmienc->renc->lvds,
- adjusted_mode);
-
- return 0;
-}
-
-
-static void rcar_du_hdmienc_mode_set(struct drm_encoder *encoder,
- struct drm_crtc_state *crtc_state,
- struct drm_connector_state *conn_state)
-{
- struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-
- rcar_du_crtc_route_output(crtc_state->crtc, hdmienc->renc->output);
-}
-
-static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
- .atomic_mode_set = rcar_du_hdmienc_mode_set,
- .disable = rcar_du_hdmienc_disable,
- .enable = rcar_du_hdmienc_enable,
- .atomic_check = rcar_du_hdmienc_atomic_check,
-};
-
-static void rcar_du_hdmienc_cleanup(struct drm_encoder *encoder)
-{
- struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-
- if (hdmienc->enabled)
- rcar_du_hdmienc_disable(encoder);
-
- drm_encoder_cleanup(encoder);
-}
-
-static const struct drm_encoder_funcs encoder_funcs = {
- .destroy = rcar_du_hdmienc_cleanup,
-};
-
-int rcar_du_hdmienc_init(struct rcar_du_device *rcdu,
- struct rcar_du_encoder *renc, struct device_node *np)
-{
- struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
- struct drm_bridge *bridge;
- struct rcar_du_hdmienc *hdmienc;
- int ret;
-
- hdmienc = devm_kzalloc(rcdu->dev, sizeof(*hdmienc), GFP_KERNEL);
- if (hdmienc == NULL)
- return -ENOMEM;
-
- /* Locate the DRM bridge from the HDMI encoder DT node. */
- bridge = of_drm_find_bridge(np);
- if (!bridge)
- return -EPROBE_DEFER;
-
- ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
- DRM_MODE_ENCODER_TMDS, NULL);
- if (ret < 0)
- return ret;
-
- drm_encoder_helper_add(encoder, &encoder_helper_funcs);
-
- renc->hdmi = hdmienc;
- hdmienc->renc = renc;
-
- /* Link the bridge to the encoder. */
- ret = drm_bridge_attach(encoder, bridge, NULL);
- if (ret) {
- drm_encoder_cleanup(encoder);
- return ret;
- }
-
- return 0;
-}
+++ /dev/null
-/*
- * R-Car Display Unit HDMI Encoder
- *
- * Copyright (C) 2014 Renesas Electronics Corporation
- *
- * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __RCAR_DU_HDMIENC_H__
-#define __RCAR_DU_HDMIENC_H__
-
-#include <linux/module.h>
-
-struct device_node;
-struct rcar_du_device;
-struct rcar_du_encoder;
-
-#if IS_ENABLED(CONFIG_DRM_RCAR_HDMI)
-int rcar_du_hdmienc_init(struct rcar_du_device *rcdu,
- struct rcar_du_encoder *renc, struct device_node *np);
-#else
-static inline int rcar_du_hdmienc_init(struct rcar_du_device *rcdu,
- struct rcar_du_encoder *renc,
- struct device_node *np)
-{
- return -ENOSYS;
-}
-#endif
-
-#endif /* __RCAR_DU_HDMIENC_H__ */
+++ /dev/null
-/*
- * rcar_du_vgacon.c -- R-Car Display Unit VGA Connector
- *
- * Copyright (C) 2013-2014 Renesas Electronics Corporation
- *
- * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <drm/drmP.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_crtc_helper.h>
-
-#include "rcar_du_drv.h"
-#include "rcar_du_encoder.h"
-#include "rcar_du_kms.h"
-#include "rcar_du_vgacon.h"
-
-static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
-{
- return 0;
-}
-
-static const struct drm_connector_helper_funcs connector_helper_funcs = {
- .get_modes = rcar_du_vga_connector_get_modes,
-};
-
-static enum drm_connector_status
-rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
-{
- return connector_status_connected;
-}
-
-static const struct drm_connector_funcs connector_funcs = {
- .dpms = drm_atomic_helper_connector_dpms,
- .reset = drm_atomic_helper_connector_reset,
- .detect = rcar_du_vga_connector_detect,
- .fill_modes = drm_helper_probe_single_connector_modes,
- .destroy = drm_connector_cleanup,
- .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
- struct rcar_du_encoder *renc)
-{
- struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
- struct rcar_du_connector *rcon;
- struct drm_connector *connector;
- int ret;
-
- rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
- if (rcon == NULL)
- return -ENOMEM;
-
- connector = &rcon->connector;
- connector->display_info.width_mm = 0;
- connector->display_info.height_mm = 0;
- connector->interlace_allowed = true;
-
- ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
- DRM_MODE_CONNECTOR_VGA);
- if (ret < 0)
- return ret;
-
- drm_connector_helper_add(connector, &connector_helper_funcs);
-
- connector->dpms = DRM_MODE_DPMS_OFF;
- drm_object_property_set_value(&connector->base,
- rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
-
- ret = drm_mode_connector_attach_encoder(connector, encoder);
- if (ret < 0)
- return ret;
-
- return 0;
-}
+++ /dev/null
-/*
- * rcar_du_vgacon.h -- R-Car Display Unit VGA Connector
- *
- * Copyright (C) 2013-2014 Renesas Electronics Corporation
- *
- * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __RCAR_DU_VGACON_H__
-#define __RCAR_DU_VGACON_H__
-
-struct rcar_du_device;
-struct rcar_du_encoder;
-
-int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
- struct rcar_du_encoder *renc);
-
-#endif /* __RCAR_DU_VGACON_H__ */
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff