[Intel-gfx] [PATCH 11/12] drm: Add a helper to forge HDMI vendor infoframes
Simon Farnsworth
simon.farnsworth at onelan.co.uk
Wed Aug 14 11:42:18 CEST 2013
More typo fallout:
On Wednesday 14 August 2013 00:17:27 Damien Lespiau wrote:
> This can then be used by DRM drivers to setup their vendor infoframes.
>
> Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
> ---
> drivers/gpu/drm/drm_edid.c | 36 ++++++++++++++++++++++++++++++++++++
> include/drm/drm_edid.h | 4 ++++
> 2 files changed, 40 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 9a07a33..83e1202 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -3262,3 +3262,39 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
> return 0;
> }
> EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
> +
> +/**
> + * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
> + * data from a DRM display mode
> + * @frame: HDMI vendor infoframe
> + * @mode: DRM display mode
> + *
> + * Note that there's is a need to send HDMI vendor infoframes only when using a
> + * 4k or stereoscopic 3D mode. So when giving any other mode as input this
> + * function will return -EINVAL, error that can be safely ignored.
> + *
> + * Returns 0 on success or a negative error code on failure.
> + */
> +int
> +drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_hdmi_infoframe *frame,
> + const struct drm_display_mode *mode)
> +{
> + int err;
> + u8 vic;
> +
> + if (!frame || !mode)
> + return -EINVAL;
> +
> + vic = drm_match_hmdi_mode(mode);
^^^^
Should be hdmi again.
> + if (!vic)
> + return -EINVAL;
> +
> + err = hdmi_hdmi_infoframe_init(frame);
> + if (err < 0)
> + return err;
> +
> + frame->vic = vic;
> +
> + return 0;
> +}
> +EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
<snip>
--
Simon Farnsworth
Software Engineer
ONELAN Ltd
http://www.onelan.com
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