Re: [PATCH 7/8] drm/i915/sdvo: Port the infoframe code to the shared infrastructure

From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Damien Lespiau <damien.lespiau@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 7/8] drm/i915/sdvo: Port the infoframe code to the shared infrastructure
Date: Mon, 5 Aug 2013 21:08:30 +0300	[thread overview]
Message-ID: <20130805180830.GB5004@intel.com> (raw)
In-Reply-To: <1375464180-7259-8-git-send-email-damien.lespiau@intel.com>

On Fri, Aug 02, 2013 at 06:22:59PM +0100, Damien Lespiau wrote:
> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
> Signed-off-by: Thierry Reding <thierry.reding at avionic-design.de>

Looks all right.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

> ---
>  drivers/gpu/drm/i915/intel_sdvo.c | 38 ++++++++++++++++++++------------------
>  1 file changed, 20 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
> index 47423f3..02f220b 100644
> --- a/drivers/gpu/drm/i915/intel_sdvo.c
> +++ b/drivers/gpu/drm/i915/intel_sdvo.c
> @@ -963,30 +963,32 @@ static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
>  static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
>  					 const struct drm_display_mode *adjusted_mode)
>  {
> -	struct dip_infoframe avi_if = {
> -		.type = DIP_TYPE_AVI,
> -		.ver = DIP_VERSION_AVI,
> -		.len = DIP_LEN_AVI,
> -	};
> -	uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
> -	struct intel_crtc *intel_crtc = to_intel_crtc(intel_sdvo->base.base.crtc);
> +	uint8_t sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
> +	struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
> +	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> +	union hdmi_infoframe frame;
> +	int ret;
> +	ssize_t len;
> +
> +	ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
> +						       adjusted_mode);
> +	if (ret < 0) {
> +		DRM_ERROR("couldn't fill AVI infoframe\n");
> +		return false;
> +	}
>  
>  	if (intel_sdvo->rgb_quant_range_selectable) {
>  		if (intel_crtc->config.limited_color_range)
> -			avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_LIMITED;
> +			frame.avi.quantization_range =
> +				HDMI_QUANTIZATION_RANGE_LIMITED;
>  		else
> -			avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_FULL;
> +			frame.avi.quantization_range =
> +				HDMI_QUANTIZATION_RANGE_FULL;
>  	}
>  
> -	avi_if.body.avi.VIC = drm_match_cea_mode(adjusted_mode);
> -
> -	intel_dip_infoframe_csum(&avi_if);
> -
> -	/* sdvo spec says that the ecc is handled by the hw, and it looks like
> -	 * we must not send the ecc field, either. */
> -	memcpy(sdvo_data, &avi_if, 3);
> -	sdvo_data[3] = avi_if.checksum;
> -	memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
> +	len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
> +	if (len < 0)
> +		return false;
>  
>  	return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
>  					  SDVO_HBUF_TX_VSYNC,
> -- 
> 1.8.3.1
> 
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-- 
Ville Syrjälä
Intel OTC