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Fri, 29 Nov 2024 09:44:00 +0530 Message-ID: Date: Fri, 29 Nov 2024 09:43:55 +0530 Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: parthiban@linumiz.com, Andre Przywara , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Samuel Holland , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/sun4i: Workaround TCON TOP conflict between DE0 and DE1 To: John Watts References: <20241108-tcon_fix-v1-1-616218cc0d5f@jookia.org> <20241108115357.691b77b0@donnerap.manchester.arm.com> <2ef6afa0-2756-493b-83a4-62e73a8e2af9@linumiz.com> Content-Language: en-US From: Parthiban Organization: Linumiz In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - md-in-79.webhostbox.net X-AntiAbuse: Original Domain - lists.linux.dev X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - linumiz.com X-BWhitelist: no X-Source-IP: 122.165.245.213 X-Source-L: No X-Exim-ID: 1tGsOG-002aNG-2V X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([192.168.1.5]) [122.165.245.213]:53154 X-Source-Auth: parthiban@linumiz.com X-Email-Count: 2 X-Org: HG=dishared_whb_net_legacy;ORG=directi; X-Source-Cap: bGludW1jbWM7aG9zdGdhdG9yO21kLWluLTc5LndlYmhvc3Rib3gubmV0 X-Local-Domain: yes X-CMAE-Envelope: MS4xfCKPCXiUdlOSOO8X4/JIWkmvRQrkxnEVKrjA1CzbIfmdG4w4lUljTz0ZBJCGG77rXG1Z9ruiST2UgYHE5xXvO4bv0TQQMIkzgxuddVPWB7MUp5Hf56iK lXf82KpZf5qUJP0i14P0KfVhJsOacs+0bpp/FJrWsxO4SE560lqkCZTZlx6Qt7nXBViqCWTuWm+tI0kfK5RxsxTDbO+v2SZr0ds= On 11/13/24 1:45 PM, John Watts wrote: > It really seems like the code means mixers here. True, I was wrong about my statement. But with A133, the case of independent DE is unique, which I couldn't test yet. > If my thoughts are correct, this would break use of mixer0 and mixer1 at the > same time. Agreed. But back to the original discussion about setting 0x20 to the port register, it work fine in my end without that changes for A133 display pipeline with LVDS. Not sure if the reason is independent DE. Thanks, Parthiban