2015-08-19 20:19:49 -06:00
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/*
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* Copyright 2015 Freescale Semiconductor, Inc.
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*
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* Freescale DCU drm device driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/backlight.h>
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2016-07-15 00:53:37 -06:00
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#include <linux/of_graph.h>
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2015-08-19 20:19:49 -06:00
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#include <drm/drmP.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_panel.h>
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#include "fsl_dcu_drm_drv.h"
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2015-12-02 15:39:40 -07:00
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#include "fsl_tcon.h"
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2015-08-19 20:19:49 -06:00
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static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder)
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{
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drm_encoder_cleanup(encoder);
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}
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static const struct drm_encoder_funcs encoder_funcs = {
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.destroy = fsl_dcu_drm_encoder_destroy,
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};
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int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev,
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struct drm_crtc *crtc)
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{
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struct drm_encoder *encoder = &fsl_dev->encoder;
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int ret;
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encoder->possible_crtcs = 1;
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2016-10-04 17:40:14 -06:00
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/* Use bypass mode for parallel RGB/LVDS encoder */
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if (fsl_dev->tcon)
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fsl_tcon_bypass_enable(fsl_dev->tcon);
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2015-08-19 20:19:49 -06:00
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ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs,
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drm: Pass 'name' to drm_encoder_init()
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.
@@
identifier dev, encoder, funcs;
@@
int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
int encoder_type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, encoder, funcs;
@@
int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
int encoder_type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4;
@@
drm_encoder_init(E1, E2, E3, E4
+ ,NULL
)
v2: Add ', or NULL...' to @name kernel doc (Jani)
Annotate the function with __printf() attribute (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09 07:20:18 -07:00
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DRM_MODE_ENCODER_LVDS, NULL);
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2015-08-19 20:19:49 -06:00
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if (ret < 0)
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return ret;
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return 0;
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}
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static void fsl_dcu_drm_connector_destroy(struct drm_connector *connector)
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{
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2016-03-24 00:27:11 -06:00
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struct fsl_dcu_drm_connector *fsl_con = to_fsl_dcu_connector(connector);
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2015-08-19 20:19:49 -06:00
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drm_connector_unregister(connector);
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2016-03-24 00:27:11 -06:00
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drm_panel_detach(fsl_con->panel);
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2015-08-19 20:19:49 -06:00
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drm_connector_cleanup(connector);
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}
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static const struct drm_connector_funcs fsl_dcu_drm_connector_funcs = {
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.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
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.destroy = fsl_dcu_drm_connector_destroy,
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.dpms = drm_atomic_helper_connector_dpms,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.reset = drm_atomic_helper_connector_reset,
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};
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static int fsl_dcu_drm_connector_get_modes(struct drm_connector *connector)
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{
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struct fsl_dcu_drm_connector *fsl_connector;
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int (*get_modes)(struct drm_panel *panel);
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int num_modes = 0;
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fsl_connector = to_fsl_dcu_connector(connector);
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if (fsl_connector->panel && fsl_connector->panel->funcs &&
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fsl_connector->panel->funcs->get_modes) {
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get_modes = fsl_connector->panel->funcs->get_modes;
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num_modes = get_modes(fsl_connector->panel);
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}
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return num_modes;
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}
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static int fsl_dcu_drm_connector_mode_valid(struct drm_connector *connector,
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struct drm_display_mode *mode)
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{
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if (mode->hdisplay & 0xf)
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return MODE_ERROR;
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return MODE_OK;
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}
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static const struct drm_connector_helper_funcs connector_helper_funcs = {
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.get_modes = fsl_dcu_drm_connector_get_modes,
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.mode_valid = fsl_dcu_drm_connector_mode_valid,
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};
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2016-07-15 00:53:37 -06:00
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static int fsl_dcu_attach_panel(struct fsl_dcu_drm_device *fsl_dev,
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struct drm_panel *panel)
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2015-08-19 20:19:49 -06:00
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{
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2016-07-15 00:53:37 -06:00
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struct drm_encoder *encoder = &fsl_dev->encoder;
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2015-08-19 20:19:49 -06:00
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struct drm_connector *connector = &fsl_dev->connector.base;
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2016-02-22 14:33:31 -07:00
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struct drm_mode_config *mode_config = &fsl_dev->drm->mode_config;
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2015-08-19 20:19:49 -06:00
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int ret;
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fsl_dev->connector.encoder = encoder;
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ret = drm_connector_init(fsl_dev->drm, connector,
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&fsl_dcu_drm_connector_funcs,
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DRM_MODE_CONNECTOR_LVDS);
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if (ret < 0)
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return ret;
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drm_connector_helper_add(connector, &connector_helper_funcs);
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ret = drm_connector_register(connector);
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if (ret < 0)
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goto err_cleanup;
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ret = drm_mode_connector_attach_encoder(connector, encoder);
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if (ret < 0)
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goto err_sysfs;
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drm_object_property_set_value(&connector->base,
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2016-02-22 14:33:31 -07:00
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mode_config->dpms_property,
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2015-08-19 20:19:49 -06:00
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DRM_MODE_DPMS_OFF);
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2016-07-15 00:53:37 -06:00
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ret = drm_panel_attach(panel, connector);
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2015-08-19 20:19:49 -06:00
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if (ret) {
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dev_err(fsl_dev->dev, "failed to attach panel\n");
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goto err_sysfs;
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}
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return 0;
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err_sysfs:
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drm_connector_unregister(connector);
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err_cleanup:
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drm_connector_cleanup(connector);
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return ret;
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}
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2016-07-15 00:53:37 -06:00
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static int fsl_dcu_attach_endpoint(struct fsl_dcu_drm_device *fsl_dev,
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const struct of_endpoint *ep)
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{
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2016-07-15 00:53:38 -06:00
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struct drm_bridge *bridge;
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2016-07-15 00:53:37 -06:00
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struct device_node *np;
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np = of_graph_get_remote_port_parent(ep->local_node);
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fsl_dev->connector.panel = of_drm_find_panel(np);
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2016-07-15 00:53:38 -06:00
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if (fsl_dev->connector.panel) {
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of_node_put(np);
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2016-07-15 00:53:37 -06:00
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return fsl_dcu_attach_panel(fsl_dev, fsl_dev->connector.panel);
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2016-07-15 00:53:38 -06:00
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}
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bridge = of_drm_find_bridge(np);
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of_node_put(np);
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if (!bridge)
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return -ENODEV;
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2016-11-28 08:59:08 -07:00
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return drm_bridge_attach(&fsl_dev->encoder, bridge, NULL);
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2016-07-15 00:53:37 -06:00
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}
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int fsl_dcu_create_outputs(struct fsl_dcu_drm_device *fsl_dev)
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{
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struct of_endpoint ep;
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struct device_node *ep_node, *panel_node;
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int ret;
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/* This is for backward compatibility */
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panel_node = of_parse_phandle(fsl_dev->np, "fsl,panel", 0);
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if (panel_node) {
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fsl_dev->connector.panel = of_drm_find_panel(panel_node);
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of_node_put(panel_node);
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if (!fsl_dev->connector.panel)
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return -EPROBE_DEFER;
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return fsl_dcu_attach_panel(fsl_dev, fsl_dev->connector.panel);
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}
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ep_node = of_graph_get_next_endpoint(fsl_dev->np, NULL);
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if (!ep_node)
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return -ENODEV;
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ret = of_graph_parse_endpoint(ep_node, &ep);
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of_node_put(ep_node);
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if (ret)
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return -ENODEV;
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return fsl_dcu_attach_endpoint(fsl_dev, &ep);
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}
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