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author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c')
-rw-r--r-- | kernel/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c b/kernel/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c new file mode 100644 index 000000000..96f2eb437 --- /dev/null +++ b/kernel/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c @@ -0,0 +1,126 @@ +/* + * 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_atomic_helper.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 rcar_du_connector *con = to_rcar_connector(connector); + struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->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 rcar_du_connector *con = to_rcar_connector(connector); + struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->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 rcar_du_connector *con = to_rcar_connector(connector); + struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->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_atomic_helper_connector_dpms, + .reset = drm_atomic_helper_connector_reset, + .detect = rcar_du_hdmi_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = rcar_du_hdmi_connector_destroy, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +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; + connector->interlace_allowed = true; + connector->polled = DRM_CONNECTOR_POLL_HPD; + + 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; + + 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; + + rcon->encoder = renc; + + return 0; +} |