forked from Minki/linux
ebc9446135
Similar to the previous commit, convert drivers open coding OF graph parsing to use drm_of_find_panel_or_bridge instead. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Archit Taneja <architt@codeaurora.org> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [seanpaul dropped rockchip changes since they're now obsolete] Signed-off-by: Sean Paul <seanpaul@chromium.org>
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/*
|
|
* Copyright (C) 2016 Marek Vasut <marex@denx.de>
|
|
*
|
|
* 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.
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/of_graph.h>
|
|
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_crtc.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
#include <drm/drm_fb_cma_helper.h>
|
|
#include <drm/drm_gem_cma_helper.h>
|
|
#include <drm/drm_of.h>
|
|
#include <drm/drm_panel.h>
|
|
#include <drm/drm_plane_helper.h>
|
|
#include <drm/drm_simple_kms_helper.h>
|
|
#include <drm/drmP.h>
|
|
|
|
#include "mxsfb_drv.h"
|
|
|
|
static struct mxsfb_drm_private *
|
|
drm_connector_to_mxsfb_drm_private(struct drm_connector *connector)
|
|
{
|
|
return container_of(connector, struct mxsfb_drm_private, connector);
|
|
}
|
|
|
|
static int mxsfb_panel_get_modes(struct drm_connector *connector)
|
|
{
|
|
struct mxsfb_drm_private *mxsfb =
|
|
drm_connector_to_mxsfb_drm_private(connector);
|
|
|
|
if (mxsfb->panel)
|
|
return mxsfb->panel->funcs->get_modes(mxsfb->panel);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct
|
|
drm_connector_helper_funcs mxsfb_panel_connector_helper_funcs = {
|
|
.get_modes = mxsfb_panel_get_modes,
|
|
};
|
|
|
|
static enum drm_connector_status
|
|
mxsfb_panel_connector_detect(struct drm_connector *connector, bool force)
|
|
{
|
|
struct mxsfb_drm_private *mxsfb =
|
|
drm_connector_to_mxsfb_drm_private(connector);
|
|
|
|
if (mxsfb->panel)
|
|
return connector_status_connected;
|
|
|
|
return connector_status_disconnected;
|
|
}
|
|
|
|
static void mxsfb_panel_connector_destroy(struct drm_connector *connector)
|
|
{
|
|
struct mxsfb_drm_private *mxsfb =
|
|
drm_connector_to_mxsfb_drm_private(connector);
|
|
|
|
if (mxsfb->panel)
|
|
drm_panel_detach(mxsfb->panel);
|
|
|
|
drm_connector_unregister(connector);
|
|
drm_connector_cleanup(connector);
|
|
}
|
|
|
|
static const struct drm_connector_funcs mxsfb_panel_connector_funcs = {
|
|
.dpms = drm_atomic_helper_connector_dpms,
|
|
.detect = mxsfb_panel_connector_detect,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.destroy = mxsfb_panel_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,
|
|
};
|
|
|
|
int mxsfb_create_output(struct drm_device *drm)
|
|
{
|
|
struct mxsfb_drm_private *mxsfb = drm->dev_private;
|
|
struct drm_panel *panel;
|
|
int ret;
|
|
|
|
ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel, NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
mxsfb->connector.dpms = DRM_MODE_DPMS_OFF;
|
|
mxsfb->connector.polled = 0;
|
|
drm_connector_helper_add(&mxsfb->connector,
|
|
&mxsfb_panel_connector_helper_funcs);
|
|
ret = drm_connector_init(drm, &mxsfb->connector,
|
|
&mxsfb_panel_connector_funcs,
|
|
DRM_MODE_CONNECTOR_Unknown);
|
|
if (!ret)
|
|
mxsfb->panel = panel;
|
|
|
|
return ret;
|
|
}
|