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drm_dp_cec: add connector info support.

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Pass the connector info to the CEC adapter. This makes it possible
to associate the CEC adapter with the corresponding drm connector.

Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20190814104520.6001-2-darekm@google.com
This commit is contained in:
Dariusz Marcinkiewicz
2019-08-14 12:44:59 +02:00
committed by Hans Verkuil
parent 3e93bc2a58
commit ae85b0df12
5 changed files with 27 additions and 24 deletions
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25
drivers/gpu/drm/drm_dp_cec.c
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@@ -8,7 +8,9 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <drm/drm_connector.h>
#include <drm/drm_dp_helper.h>
#include <drm/drmP.h>
#include <media/cec.h>
/*
@@ -295,7 +297,10 @@ static void drm_dp_cec_unregister_work(struct work_struct *work)
*/
void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid)
{
u32 cec_caps = CEC_CAP_DEFAULTS | CEC_CAP_NEEDS_HPD;
struct drm_connector *connector = aux->cec.connector;
u32 cec_caps = CEC_CAP_DEFAULTS | CEC_CAP_NEEDS_HPD |
CEC_CAP_CONNECTOR_INFO;
struct cec_connector_info conn_info;
unsigned int num_las = 1;
u8 cap;
@@ -344,13 +349,17 @@ void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid)
/* Create a new adapter */
aux->cec.adap = cec_allocate_adapter(&drm_dp_cec_adap_ops,
aux, aux->cec.name, cec_caps,
aux, connector->name, cec_caps,
num_las);
if (IS_ERR(aux->cec.adap)) {
aux->cec.adap = NULL;
goto unlock;
}
if (cec_register_adapter(aux->cec.adap, aux->cec.parent)) {
cec_fill_conn_info_from_drm(&conn_info, connector);
cec_s_conn_info(aux->cec.adap, &conn_info);
if (cec_register_adapter(aux->cec.adap, connector->dev->dev)) {
cec_delete_adapter(aux->cec.adap);
aux->cec.adap = NULL;
} else {
@@ -406,22 +415,20 @@ EXPORT_SYMBOL(drm_dp_cec_unset_edid);
/**
* drm_dp_cec_register_connector() - register a new connector
* @aux: DisplayPort AUX channel
* @name: name of the CEC device
* @parent: parent device
* @connector: drm connector
*
* A new connector was registered with associated CEC adapter name and
* CEC adapter parent device. After registering the name and parent
* drm_dp_cec_set_edid() is called to check if the connector supports
* CEC and to register a CEC adapter if that is the case.
*/
void drm_dp_cec_register_connector(struct drm_dp_aux *aux, const char *name,
struct device *parent)
void drm_dp_cec_register_connector(struct drm_dp_aux *aux,
struct drm_connector *connector)
{
WARN_ON(aux->cec.adap);
if (WARN_ON(!aux->transfer))
return;
aux->cec.name = name;
aux->cec.parent = parent;
aux->cec.connector = connector;
INIT_DELAYED_WORK(&aux->cec.unregister_work,
drm_dp_cec_unregister_work);
}