linux-kernel - Re: [PATCH 1/2] drm/dsi: Implement DCS get display mode

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Message-ID: <CAGWqDJ7+o+otUW52_Fi5BndXZSTxJjxMMUEktpEqUteHoXTXbg@mail.gmail.com>
Date:	Tue, 26 Apr 2016 10:08:58 +0530
From:	Vinay Simha <simhavcs@...il.com>
To:	Vinay Simha BN <simhavcs@...il.com>
Cc:	David Airlie <airlied@...ux.ie>,
	"open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
	open list <linux-kernel@...r.kernel.org>,
	Thierry Reding <thierry.reding@...il.com>
Subject: Re: [PATCH 1/2] drm/dsi: Implement DCS get display mode

HI,

I have not got response from maintainers. Did i miss anything?

On Mon, Apr 18, 2016 at 2:52 PM, Vinay Simha BN <simhavcs@...il.com> wrote:
> Provide a small convenience wrapper that transmits
> a DCS get_display_mode command.
>
> Signed-off-by: Vinay Simha BN <simhavcs@...il.com>
> ---
>  drivers/gpu/drm/drm_mipi_dsi.c | 24 ++++++++++++++++++++++++
>  include/drm/drm_mipi_dsi.h     |  1 +
>  2 files changed, 25 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
> index f5d8083..2e032ea 100644
> --- a/drivers/gpu/drm/drm_mipi_dsi.c
> +++ b/drivers/gpu/drm/drm_mipi_dsi.c
> @@ -792,6 +792,30 @@ int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode)
>  EXPORT_SYMBOL(mipi_dsi_dcs_get_power_mode);
>
>  /**
> + * mipi_dsi_dcs_get_display_mode() - query the display module's image mode
> + * @dsi: DSI peripheral device
> + * @mode: return location for the display image mode
> + *
> + * Return: 0 on success or a negative error code on failure.
> + */
> +int mipi_dsi_dcs_get_display_mode(struct mipi_dsi_device *dsi, u8 *mode)
> +{
> +       ssize_t err;
> +
> +       err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_DISPLAY_MODE, mode,
> +                               sizeof(*mode));
> +       if (err <= 0) {
> +               if (err == 0)
> +                       err = -ENODATA;
> +
> +               return err;
> +       }
> +
> +       return 0;
> +}
> +EXPORT_SYMBOL(mipi_dsi_dcs_get_display_mode);
> +
> +/**
>   * mipi_dsi_dcs_get_pixel_format() - gets the pixel format for the RGB image
>   *    data used by the interface
>   * @dsi: DSI peripheral device
> diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
> index 7a9840f..48fcd65 100644
> --- a/include/drm/drm_mipi_dsi.h
> +++ b/include/drm/drm_mipi_dsi.h
> @@ -254,6 +254,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
>  int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
>  int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
>  int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
> +int mipi_dsi_dcs_get_display_mode(struct mipi_dsi_device *dsi, u8 *mode);
>  int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
>  int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
>  int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
> --
> 2.1.2
>



-- 
Regards,

Vinay Simha.B.N.