From: Russell King - ARM Linux <linux@armlinux.org.uk>
To: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: dri-devel@lists.freedesktop.org,
Carlos Palminha <CARLOS.PALMINHA@synopsys.com>,
David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drm: bridge/dw-hdmi: Fix colorspace and scan information registers values
Date: Thu, 18 Aug 2016 15:46:34 +0100 [thread overview]
Message-ID: <20160818144633.GZ1041@n2100.armlinux.org.uk> (raw)
In-Reply-To: <96fd0f06b7ebc2ee5cb8239a99648f3107e24497.1471530573.git.joabreu@synopsys.com>
On Thu, Aug 18, 2016 at 03:34:12PM +0100, Jose Abreu wrote:
> Colorspace and scan information values were being written in wrong
> offsets. This patch corrects this and writes the values at the
> offsets specified in the databook.
>
> Signed-off-by: Jose Abreu <joabreu@synopsys.com>
> Cc: Carlos Palminha <palminha@synopsys.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-kernel@vger.kernel.org
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Thanks.
> ---
> drivers/gpu/drm/bridge/dw-hdmi.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
> index 77ab473..cdf39aa 100644
> --- a/drivers/gpu/drm/bridge/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/dw-hdmi.c
> @@ -940,10 +940,11 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
> */
>
> /*
> - * AVI data byte 1 differences: Colorspace in bits 4,5 rather than 5,6,
> - * active aspect present in bit 6 rather than 4.
> + * AVI data byte 1 differences: Colorspace in bits 0,1 rather than 5,6,
> + * scan info in bits 4,5 rather than 0,1 and active aspect present in
> + * bit 6 rather than 4.
> */
> - val = (frame.colorspace & 3) << 4 | (frame.scan_mode & 0x3);
> + val = (frame.scan_mode & 3) << 4 | (frame.colorspace & 3);
> if (frame.active_aspect & 15)
> val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT;
> if (frame.top_bar || frame.bottom_bar)
> --
> 2.1.4
>
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2016-08-18 14:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-18 14:34 [PATCH] drm: bridge/dw-hdmi: Fix colorspace and scan information registers values Jose Abreu
2016-08-18 14:46 ` Russell King - ARM Linux [this message]
2016-08-29 9:21 ` [PATCH RESEND] " Russell King - ARM Linux
2016-08-29 9:26 ` Jose Abreu
2016-08-31 4:08 ` Archit Taneja
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