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Message-ID: <20190828150552.GF7482@intel.com>
Date: Wed, 28 Aug 2019 18:05:52 +0300
From: Ville Syrjälä <ville.syrjala@...ux.intel.com>
To: Dariusz Marcinkiewicz <darekm@...gle.com>
Cc: dri-devel@...ts.freedesktop.org, linux-media@...r.kernel.org,
hverkuil-cisco@...all.nl, Harry Wentland <harry.wentland@....com>,
Leo Li <sunpeng.li@....com>,
Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
"David (ChunMing) Zhou" <David1.Zhou@....com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Sean Paul <sean@...rly.run>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Ben Skeggs <bskeggs@...hat.com>, Lyude Paul <lyude@...hat.com>,
"Jerry (Fangzhi) Zuo" <Jerry.Zuo@....com>,
Anthony Koo <Anthony.Koo@....com>,
Thomas Lim <Thomas.Lim@....com>,
David Francis <David.Francis@....com>,
Chris Wilson <chris@...is-wilson.co.uk>,
Imre Deak <imre.deak@...el.com>,
Manasi Navare <manasi.d.navare@...el.com>,
Dhinakaran Pandiyan <dhinakaran.pandiyan@...el.com>,
amd-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
intel-gfx@...ts.freedesktop.org, nouveau@...ts.freedesktop.org
Subject: Re: [PATCH v7 1/9] drm_dp_cec: add connector info support.
On Wed, Aug 14, 2019 at 12:44:59PM +0200, Dariusz Marcinkiewicz wrote:
> 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@...gle.com>
> Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
> Tested-by: Hans Verkuil <hverkuil-cisco@...all.nl>
> ---
> .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +-
> drivers/gpu/drm/drm_dp_cec.c | 25 ++++++++++++-------
> drivers/gpu/drm/i915/display/intel_dp.c | 4 +--
> drivers/gpu/drm/nouveau/nouveau_connector.c | 3 +--
> include/drm/drm_dp_helper.h | 17 ++++++-------
> 5 files changed, 27 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> index 16218a202b591..5ec14efd4d8cb 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> @@ -416,7 +416,7 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
>
> drm_dp_aux_register(&aconnector->dm_dp_aux.aux);
> drm_dp_cec_register_connector(&aconnector->dm_dp_aux.aux,
> - aconnector->base.name, dm->adev->dev);
> + &aconnector->base);
> aconnector->mst_mgr.cbs = &dm_mst_cbs;
> drm_dp_mst_topology_mgr_init(
> &aconnector->mst_mgr,
> diff --git a/drivers/gpu/drm/drm_dp_cec.c b/drivers/gpu/drm/drm_dp_cec.c
> index b15cee85b702b..b457c16c3a8bb 100644
> --- a/drivers/gpu/drm/drm_dp_cec.c
> +++ b/drivers/gpu/drm/drm_dp_cec.c
> @@ -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);
> }
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 1092499115760..de2486fe7bf2d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5497,7 +5497,6 @@ static int
> intel_dp_connector_register(struct drm_connector *connector)
> {
> struct intel_dp *intel_dp = intel_attached_dp(connector);
> - struct drm_device *dev = connector->dev;
> int ret;
>
> ret = intel_connector_register(connector);
> @@ -5512,8 +5511,7 @@ intel_dp_connector_register(struct drm_connector *connector)
> intel_dp->aux.dev = connector->kdev;
> ret = drm_dp_aux_register(&intel_dp->aux);
> if (!ret)
> - drm_dp_cec_register_connector(&intel_dp->aux,
> - connector->name, dev->dev);
> + drm_dp_cec_register_connector(&intel_dp->aux, connector);
> return ret;
> }
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
> index 330d7d29a6e34..8aa703347eb54 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_connector.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
> @@ -1416,8 +1416,7 @@ nouveau_connector_create(struct drm_device *dev,
> switch (type) {
> case DRM_MODE_CONNECTOR_DisplayPort:
> case DRM_MODE_CONNECTOR_eDP:
> - drm_dp_cec_register_connector(&nv_connector->aux,
> - connector->name, dev->dev);
> + drm_dp_cec_register_connector(&nv_connector->aux, connector);
> break;
> }
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index 8364502f92cfe..7972b925a952b 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -1230,20 +1230,19 @@ struct drm_dp_aux_msg {
>
> struct cec_adapter;
> struct edid;
> +struct drm_connector;
>
> /**
> * struct drm_dp_aux_cec - DisplayPort CEC-Tunneling-over-AUX
> * @lock: mutex protecting this struct
> * @adap: the CEC adapter for CEC-Tunneling-over-AUX support.
> - * @name: name of the CEC adapter
> - * @parent: parent device of the CEC adapter
> + * @connector: the connector this CEC adapter is associated with
> * @unregister_work: unregister the CEC adapter
> */
> struct drm_dp_aux_cec {
> struct mutex lock;
> struct cec_adapter *adap;
> - const char *name;
> - struct device *parent;
> + struct drm_connector *connector;
I think all current users could just pass the connector to
cec_set_edid(). So could save a pointer here.
Anyways
Reviewed-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> struct delayed_work unregister_work;
> };
>
> @@ -1451,8 +1450,8 @@ drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk)
>
> #ifdef CONFIG_DRM_DP_CEC
> void drm_dp_cec_irq(struct drm_dp_aux *aux);
> -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);
> void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux);
> void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid);
> void drm_dp_cec_unset_edid(struct drm_dp_aux *aux);
> @@ -1461,9 +1460,9 @@ static inline void drm_dp_cec_irq(struct drm_dp_aux *aux)
> {
> }
>
> -static inline void drm_dp_cec_register_connector(struct drm_dp_aux *aux,
> - const char *name,
> - struct device *parent)
> +static inline void
> +drm_dp_cec_register_connector(struct drm_dp_aux *aux,
> + struct drm_connector *connector)
> {
> }
>
> --
> 2.23.0.rc1.153.gdeed80330f-goog
--
Ville Syrjälä
Intel
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