From: Jani Nikula <jani.nikula@linux.intel.com>
To: Russell King <rmk+kernel@arm.linux.org.uk>,
alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org
Cc: Fabio Estevam <fabio.estevam@freescale.com>,
Mark Brown <broonie@kernel.org>, Yakir Yang <ykk@rock-chips.com>
Subject: Re: [PATCH RFC 07/11] drm/edid: add function to help find SADs
Date: Wed, 01 Apr 2015 14:47:32 +0300 [thread overview]
Message-ID: <87wq1wrrxn.fsf@intel.com> (raw)
In-Reply-To: <E1YcfY0-0002vI-0F@rmk-PC.arm.linux.org.uk>
On Mon, 30 Mar 2015, Russell King <rmk+kernel@arm.linux.org.uk> wrote:
> Add a function to find the start of the SADs in the ELD. This
> complements the helper to retrieve the SAD count.
>
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
I guess version 31 is specific enough to warrant a #define of its own,
but meh.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
> ---
> include/drm/drm_edid.h | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
> index 87d85e81d3a7..c44ad513e0f7 100644
> --- a/include/drm/drm_edid.h
> +++ b/include/drm/drm_edid.h
> @@ -346,6 +346,25 @@ static inline int drm_eld_mnl(const uint8_t *eld)
> }
>
> /**
> + * drm_eld_sad - Get ELD SAD structures.
> + * @eld: pointer to an eld memory structure with sad_count set
> + */
> +static inline const uint8_t *drm_eld_sad(const uint8_t *eld)
> +{
> + unsigned int ver, mnl;
> +
> + ver = (eld[DRM_ELD_VER] & DRM_ELD_VER_MASK) >> DRM_ELD_VER_SHIFT;
> + if (ver != 2 && ver != 31)
> + return NULL;
> +
> + mnl = drm_eld_mnl(eld);
> + if (mnl > 16)
> + return NULL;
> +
> + return eld + DRM_ELD_CEA_SAD(mnl, 0);
> +}
> +
> +/**
> * drm_eld_sad_count - Get ELD SAD count.
> * @eld: pointer to an eld memory structure with sad_count set
> */
> --
> 1.8.3.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Jani Nikula, Intel Open Source Technology Center
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next prev parent reply other threads:[~2015-04-01 11:47 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-30 19:39 [RFC 0/11] dw_hdmi cleanups, audio preparation, helpers and ahb audio support Russell King - ARM Linux
2015-03-30 19:40 ` [PATCH RFC 01/11] drm: bridge/dw_hdmi: clean up hdmi_set_clk_regenerator() Russell King
2015-03-31 6:55 ` Yang Kuankuan
2015-03-31 10:35 ` Russell King - ARM Linux
2015-04-01 1:54 ` Yakir
2015-03-30 19:40 ` [PATCH RFC 02/11] drm: bridge/dw_hdmi: use drm_hdmi_avi_infoframe_from_display_mode() Russell King
2015-03-31 9:02 ` Yang Kuankuan
2015-03-31 11:57 ` Russell King - ARM Linux
2015-04-01 1:31 ` Yakir
2015-03-30 19:40 ` [PATCH RFC 03/11] drm: bridge/dw_hdmi: simplify hdmi_config_AVI() a little Russell King
2015-03-30 19:40 ` [PATCH RFC 04/11] drm: bridge/dw_hdmi: remove mhsyncpolarity/mvsyncpolarity/minterlaced Russell King
2015-03-30 19:40 ` [PATCH RFC 05/11] drm: bridge/dw_hdmi: introduce interface to setting sample rate Russell King
2015-03-30 19:40 ` [PATCH RFC 06/11] drm: bridge/dw_hdmi: introduce interfaces to enable and disable audio Russell King
2015-03-31 7:45 ` Yang Kuankuan
2015-03-31 9:15 ` Philipp Zabel
2015-03-30 19:40 ` [PATCH RFC 07/11] drm/edid: add function to help find SADs Russell King
2015-04-01 11:47 ` Jani Nikula [this message]
2015-04-01 11:56 ` Russell King - ARM Linux
2015-04-02 10:52 ` [PATCH] drm/edid: add #defines for ELD versions Jani Nikula
2015-03-30 19:40 ` [PATCH RFC 08/11] sound/core: add DRM ELD helper Russell King
2015-03-31 9:12 ` Philipp Zabel
2015-03-30 19:40 ` [PATCH RFC 09/11] sound/core: add IEC958 channel status helper Russell King
2015-03-31 8:30 ` Yang Kuankuan
2015-03-31 9:13 ` Russell King - ARM Linux
2015-04-01 2:04 ` Yakir
2015-04-01 7:58 ` Russell King - ARM Linux
2015-03-31 9:10 ` Philipp Zabel
2015-03-31 9:16 ` Russell King - ARM Linux
2015-03-30 19:40 ` [PATCH RFC 10/11] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King
2015-03-30 19:40 ` [PATCH RFC 11/11] drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver Russell King
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