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
+ depends on OF
+ help
+ Enable support for external HDMI encoders.
+
config DRM_RCAR_LVDS
bool "R-Car DU LVDS Encoder Support"
depends on DRM_RCAR_DU
depends on ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST
help
- Enable support the R-Car Display Unit embedded LVDS encoders
- (currently only on R8A7790).
+ Enable support for the R-Car Display Unit embedded LVDS encoders
+ (currently only on R8A7790 and R8A7791).
rcar_du_plane.o \
rcar_du_vgacon.o
+rcar-du-drm-$(CONFIG_DRM_RCAR_HDMI) += rcar_du_hdmicon.o \
+ rcar_du_hdmienc.o
rcar-du-drm-$(CONFIG_DRM_RCAR_LVDS) += rcar_du_lvdsenc.o
obj-$(CONFIG_DRM_RCAR_DU) += rcar-du-drm.o
#include "rcar_du_drv.h"
#include "rcar_du_encoder.h"
+#include "rcar_du_hdmicon.h"
+#include "rcar_du_hdmienc.h"
#include "rcar_du_kms.h"
#include "rcar_du_lvdscon.h"
#include "rcar_du_lvdsenc.h"
case RCAR_DU_ENCODER_LVDS:
encoder_type = DRM_MODE_ENCODER_LVDS;
break;
+ case RCAR_DU_ENCODER_HDMI:
+ encoder_type = DRM_MODE_ENCODER_TMDS;
+ break;
case RCAR_DU_ENCODER_NONE:
default:
/* No external encoder, use the internal encoder type. */
break;
}
- ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
- encoder_type);
- if (ret < 0)
- return ret;
+ if (type == RCAR_DU_ENCODER_HDMI) {
+ if (renc->lvds) {
+ dev_err(rcdu->dev,
+ "Chaining LVDS and HDMI encoders not supported\n");
+ return -EINVAL;
+ }
- drm_encoder_helper_add(encoder, &encoder_helper_funcs);
+ ret = rcar_du_hdmienc_init(rcdu, renc, enc_node);
+ if (ret < 0)
+ return ret;
+ } else {
+ ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
+ encoder_type);
+ if (ret < 0)
+ return ret;
+
+ drm_encoder_helper_add(encoder, &encoder_helper_funcs);
+ }
switch (encoder_type) {
case DRM_MODE_ENCODER_LVDS:
case DRM_MODE_ENCODER_DAC:
return rcar_du_vga_connector_init(rcdu, renc);
+ case DRM_MODE_ENCODER_TMDS:
+ return rcar_du_hdmi_connector_init(rcdu, renc);
+
default:
return -EINVAL;
}
#include <drm/drm_encoder_slave.h>
struct rcar_du_device;
+struct rcar_du_hdmienc;
struct rcar_du_lvdsenc;
enum rcar_du_encoder_type {
RCAR_DU_ENCODER_NONE,
RCAR_DU_ENCODER_VGA,
RCAR_DU_ENCODER_LVDS,
+ RCAR_DU_ENCODER_HDMI,
};
struct rcar_du_encoder {
struct drm_encoder_slave slave;
enum rcar_du_output output;
+ struct rcar_du_hdmienc *hdmi;
struct rcar_du_lvdsenc *lvds;
};
--- /dev/null
+/*
+ * R-Car Display Unit HDMI Connector
+ *
+ * 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 <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder_slave.h>
+
+#include "rcar_du_drv.h"
+#include "rcar_du_encoder.h"
+#include "rcar_du_hdmicon.h"
+#include "rcar_du_kms.h"
+
+#define to_slave_funcs(e) (to_rcar_encoder(e)->slave.slave_funcs)
+
+static int rcar_du_hdmi_connector_get_modes(struct drm_connector *connector)
+{
+ struct drm_encoder *encoder = connector->encoder;
+ struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+
+ if (sfuncs->get_modes == NULL)
+ return 0;
+
+ return sfuncs->get_modes(encoder, connector);
+}
+
+static int rcar_du_hdmi_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ struct drm_encoder *encoder = connector->encoder;
+ struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+
+ if (sfuncs->mode_valid == NULL)
+ return MODE_OK;
+
+ return sfuncs->mode_valid(encoder, mode);
+}
+
+static const struct drm_connector_helper_funcs connector_helper_funcs = {
+ .get_modes = rcar_du_hdmi_connector_get_modes,
+ .mode_valid = rcar_du_hdmi_connector_mode_valid,
+ .best_encoder = rcar_du_connector_best_encoder,
+};
+
+static void rcar_du_hdmi_connector_destroy(struct drm_connector *connector)
+{
+ drm_connector_unregister(connector);
+ drm_connector_cleanup(connector);
+}
+
+static enum drm_connector_status
+rcar_du_hdmi_connector_detect(struct drm_connector *connector, bool force)
+{
+ struct drm_encoder *encoder = connector->encoder;
+ struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+
+ if (sfuncs->detect == NULL)
+ return connector_status_unknown;
+
+ return sfuncs->detect(encoder, connector);
+}
+
+static const struct drm_connector_funcs connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = rcar_du_hdmi_connector_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = rcar_du_hdmi_connector_destroy,
+};
+
+int rcar_du_hdmi_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;
+
+ ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
+ DRM_MODE_CONNECTOR_HDMIA);
+ if (ret < 0)
+ return ret;
+
+ drm_connector_helper_add(connector, &connector_helper_funcs);
+ ret = drm_connector_register(connector);
+ if (ret < 0)
+ return ret;
+
+ drm_helper_connector_dpms(connector, 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;
+
+ connector->encoder = encoder;
+ rcon->encoder = renc;
+
+ return 0;
+}
--- /dev/null
+/*
+ * R-Car Display Unit HDMI Connector
+ *
+ * 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_HDMICON_H__
+#define __RCAR_DU_HDMICON_H__
+
+struct rcar_du_device;
+struct rcar_du_encoder;
+
+#if IS_ENABLED(CONFIG_DRM_RCAR_HDMI)
+int rcar_du_hdmi_connector_init(struct rcar_du_device *rcdu,
+ struct rcar_du_encoder *renc);
+#else
+static inline int rcar_du_hdmi_connector_init(struct rcar_du_device *rcdu,
+ struct rcar_du_encoder *renc)
+{
+ return -ENOSYS;
+}
+#endif
+
+#endif /* __RCAR_DU_HDMICON_H__ */
--- /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 <drm/drm_encoder_slave.h>
+
+#include "rcar_du_drv.h"
+#include "rcar_du_encoder.h"
+#include "rcar_du_hdmienc.h"
+
+struct rcar_du_hdmienc {
+ struct rcar_du_encoder *renc;
+ struct device *dev;
+ int dpms;
+};
+
+#define to_rcar_hdmienc(e) (to_rcar_encoder(e)->hdmi)
+#define to_slave_funcs(e) (to_rcar_encoder(e)->slave.slave_funcs)
+
+static void rcar_du_hdmienc_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
+ struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+
+ if (hdmienc->dpms == mode)
+ return;
+
+ if (sfuncs->dpms)
+ sfuncs->dpms(encoder, mode);
+
+ hdmienc->dpms = mode;
+}
+
+static bool rcar_du_hdmienc_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+
+ if (sfuncs->mode_fixup == NULL)
+ return true;
+
+ return sfuncs->mode_fixup(encoder, mode, adjusted_mode);
+}
+
+static void rcar_du_hdmienc_mode_prepare(struct drm_encoder *encoder)
+{
+ rcar_du_hdmienc_dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+static void rcar_du_hdmienc_mode_commit(struct drm_encoder *encoder)
+{
+ rcar_du_hdmienc_dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static void rcar_du_hdmienc_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
+ struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+
+ if (sfuncs->mode_set)
+ sfuncs->mode_set(encoder, mode, adjusted_mode);
+
+ rcar_du_crtc_route_output(encoder->crtc, hdmienc->renc->output);
+}
+
+static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
+ .dpms = rcar_du_hdmienc_dpms,
+ .mode_fixup = rcar_du_hdmienc_mode_fixup,
+ .prepare = rcar_du_hdmienc_mode_prepare,
+ .commit = rcar_du_hdmienc_mode_commit,
+ .mode_set = rcar_du_hdmienc_mode_set,
+};
+
+static void rcar_du_hdmienc_cleanup(struct drm_encoder *encoder)
+{
+ struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
+
+ rcar_du_hdmienc_dpms(encoder, DRM_MODE_DPMS_OFF);
+
+ drm_encoder_cleanup(encoder);
+ put_device(hdmienc->dev);
+}
+
+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_i2c_encoder_driver *driver;
+ struct i2c_client *i2c_slave;
+ struct rcar_du_hdmienc *hdmienc;
+ int ret;
+
+ hdmienc = devm_kzalloc(rcdu->dev, sizeof(*hdmienc), GFP_KERNEL);
+ if (hdmienc == NULL)
+ return -ENOMEM;
+
+ /* Locate the slave I2C device and driver. */
+ i2c_slave = of_find_i2c_device_by_node(np);
+ if (!i2c_slave || !i2c_get_clientdata(i2c_slave))
+ return -EPROBE_DEFER;
+
+ hdmienc->dev = &i2c_slave->dev;
+
+ if (hdmienc->dev->driver == NULL) {
+ ret = -EPROBE_DEFER;
+ goto error;
+ }
+
+ /* Initialize the slave encoder. */
+ driver = to_drm_i2c_encoder_driver(to_i2c_driver(hdmienc->dev->driver));
+ ret = driver->encoder_init(i2c_slave, rcdu->ddev, &renc->slave);
+ if (ret < 0)
+ goto error;
+
+ ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+ if (ret < 0)
+ goto error;
+
+ drm_encoder_helper_add(encoder, &encoder_helper_funcs);
+
+ renc->hdmi = hdmienc;
+ hdmienc->renc = renc;
+
+ return 0;
+
+error:
+ put_device(hdmienc->dev);
+ return ret;
+}
--- /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__ */
enum rcar_du_encoder_type type;
} encoders[] = {
{ "adi,adv7123", RCAR_DU_ENCODER_VGA },
+ { "adi,adv7511w", RCAR_DU_ENCODER_HDMI },
{ "thine,thc63lvdm83d", RCAR_DU_ENCODER_LVDS },
};
projects / platform / kernel / linux-rpi.git / commitdiff