Re: [PATCH v7 1/9] drm_dp_cec: add connector info support.

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Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>

From: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Sent: Thursday, August 22, 2019 4:08 AM
To: Dariusz Marcinkiewicz <darekm@xxxxxxxxxx>; dri-devel@xxxxxxxxxxxxxxxxxxxxx <dri-devel@xxxxxxxxxxxxxxxxxxxxx>; linux-media@xxxxxxxxxxxxxxx <linux-media@xxxxxxxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>; nouveau@xxxxxxxxxxxxxxxxxxxxx <nouveau@xxxxxxxxxxxxxxxxxxxxx>; Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>; Koo, Anthony <Anthony.Koo@xxxxxxx>; Francis, David <David.Francis@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; Zuo, Jerry <Jerry.Zuo@xxxxxxx>; Ben Skeggs <bskeggs@xxxxxxxxxx>; Li, Sun peng (Leo) <Sunpeng.Li@xxxxxxx>; intel-gfx@xxxxxxxxxxxxxxxxxxxxx <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>; Maxime Ripard <mripard@xxxxxxxxxx>; Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>; Sean Paul <sean@xxxxxxxxxx>; Thomas Lim <Thomas.Lim@xxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx <linux-kernel@xxxxxxxxxxxxxxx>; Manasi Navare <manasi.d.navare@xxxxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian <Christian.Koenig@xxxxxxx>; Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH v7 1/9] drm_dp_cec: add connector info support.
 
Alex, Ville/Rodrigo, Ben,

Can you (hopefully) Ack this patch so that I can merge it?

Thank you!

        Hans

On 8/14/19 12:44 PM, 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@xxxxxxxxxx>
> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
> Tested-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
> ---
>  .../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;
>        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)
>  {
>  }

>

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