[PATCH v2 05/19] videomodes: add helper function to convert from ctfb to display_timing

[Simon Glass]

Hi Giulio,

On Sun, 22 Mar 2020 at 16:44, Giulio Benetti
<giulio.benetti at benettiengineering.com> wrote:
>
> This function converts from "struct ctf_res_modes" to
> "struct display_timing".
>
> Signed-off-by: Giulio Benetti <giulio.benetti at benettiengineering.com>
> ---
>  drivers/video/videomodes.c | 29 +++++++++++++++++++++++++++++
>  drivers/video/videomodes.h |  3 +++
>  2 files changed, 32 insertions(+)
>
> diff --git a/drivers/video/videomodes.c b/drivers/video/videomodes.c
> index ac25b45f81..89003eea72 100644
> --- a/drivers/video/videomodes.c
> +++ b/drivers/video/videomodes.c
> @@ -444,3 +444,32 @@ int video_edid_dtd_to_ctfb_res_modes(struct edid_detailed_timing *t,
>
>         return 0;
>  }
> +
> +void video_ctfb_mode_to_display_timing(const struct ctfb_res_modes *mode,
> +                                      struct display_timing *timing)
> +{
> +       timing->pixelclock.typ = mode->pixclock_khz * 1000;
> +
> +       timing->hactive.typ = mode->xres;
> +       timing->hfront_porch.typ = mode->right_margin;
> +       timing->hback_porch.typ = mode->left_margin;
> +       timing->hsync_len.typ = mode->hsync_len;
> +
> +       timing->vactive.typ = mode->yres;
> +       timing->vfront_porch.typ = mode->lower_margin;
> +       timing->vback_porch.typ = mode->upper_margin;
> +       timing->vsync_len.typ = mode->vsync_len;
> +
> +       timing->flags = 0;
> +
> +       if (mode->sync & FB_SYNC_HOR_HIGH_ACT)
> +               timing->flags |= DISPLAY_FLAGS_HSYNC_HIGH;
> +       else
> +               timing->flags |= DISPLAY_FLAGS_HSYNC_LOW;
> +       if (mode->sync & FB_SYNC_VERT_HIGH_ACT)
> +               timing->flags |= DISPLAY_FLAGS_VSYNC_HIGH;
> +       else
> +               timing->flags |= DISPLAY_FLAGS_VSYNC_LOW;
> +       if (mode->vmode == FB_VMODE_INTERLACED)
> +               timing->flags |= DISPLAY_FLAGS_INTERLACED;
> +}
> diff --git a/drivers/video/videomodes.h b/drivers/video/videomodes.h
> index 29a3db4ae3..6713f96d19 100644
> --- a/drivers/video/videomodes.h
> +++ b/drivers/video/videomodes.h
> @@ -92,3 +92,6 @@ int video_get_option_int(const char *options, const char *name, int def);
>
>  int video_edid_dtd_to_ctfb_res_modes(struct edid_detailed_timing *t,
>                                      struct ctfb_res_modes *mode);
> +
> +void video_ctfb_mode_to_display_timing(const struct ctfb_res_modes *mode,
> +                                      struct display_timing *timing);

Please add a comment for this. What is ctfb?

Regards,
Simon
>