linux-kernel - Re: [RFC][PATCH 1/2] drm/bridge: lt9611: Consolidate detection logic

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Message-ID: <CAG3jFyurX5MKDr9=kEFT6AaV+HZf588cAMLaBG8G+6CAr-3QJQ@mail.gmail.com>
Date:   Mon, 2 May 2022 16:26:05 +0200
From:   Robert Foss <robert.foss@...aro.org>
To:     John Stultz <jstultz@...gle.com>
Cc:     linux-kernel@...r.kernel.org, Yongqin Liu <yongqin.liu@...aro.org>,
        Amit Pundir <amit.pundir@...aro.org>,
        Peter Collingbourne <pcc@...gle.com>,
        Vinod Koul <vkoul@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        kernel-team@...roid.com
Subject: Re: [RFC][PATCH 1/2] drm/bridge: lt9611: Consolidate detection logic

On Sat, 30 Apr 2022 at 08:48, John Stultz <jstultz@...gle.com> wrote:
>
> This patch simply consolidates the duplicated detection
> functionality in the driver.
>
> Cc: Yongqin Liu <yongqin.liu@...aro.org>
> Cc: Amit Pundir <amit.pundir@...aro.org>
> Cc: Peter Collingbourne <pcc@...gle.com>
> Cc: Vinod Koul <vkoul@...nel.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: Robert Foss <robert.foss@...aro.org>
> Cc: kernel-team@...roid.com
> Signed-off-by: John Stultz <jstultz@...gle.com>
> ---
>  drivers/gpu/drm/bridge/lontium-lt9611.c | 22 ++++++++--------------
>  1 file changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
> index 63df2e8a8abc..bf66af668f61 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt9611.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
> @@ -578,10 +578,8 @@ static struct lt9611_mode *lt9611_find_mode(const struct drm_display_mode *mode)
>  }
>
>  /* connector funcs */
> -static enum drm_connector_status
> -lt9611_connector_detect(struct drm_connector *connector, bool force)
> +static enum drm_connector_status __lt9611_detect(struct lt9611 *lt9611)
>  {
> -       struct lt9611 *lt9611 = connector_to_lt9611(connector);
>         unsigned int reg_val = 0;
>         int connected = 0;
>
> @@ -594,6 +592,12 @@ lt9611_connector_detect(struct drm_connector *connector, bool force)
>         return lt9611->status;
>  }
>
> +static enum drm_connector_status
> +lt9611_connector_detect(struct drm_connector *connector, bool force)
> +{
> +       return __lt9611_detect(connector_to_lt9611(connector));
> +}
> +
>  static int lt9611_read_edid(struct lt9611 *lt9611)
>  {
>         unsigned int temp;
> @@ -887,17 +891,7 @@ static void lt9611_bridge_mode_set(struct drm_bridge *bridge,
>
>  static enum drm_connector_status lt9611_bridge_detect(struct drm_bridge *bridge)
>  {
> -       struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
> -       unsigned int reg_val = 0;
> -       int connected;
> -
> -       regmap_read(lt9611->regmap, 0x825e, &reg_val);
> -       connected  = reg_val & BIT(0);
> -
> -       lt9611->status = connected ?  connector_status_connected :
> -                               connector_status_disconnected;
> -
> -       return lt9611->status;
> +       return __lt9611_detect(bridge_to_lt9611(bridge));
>  }
>
>  static struct edid *lt9611_bridge_get_edid(struct drm_bridge *bridge,

I think this looks good. Thank John!

Reviewed-by: Robert Foss <robert.foss@...aro.org>