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Received: from AM7PR04MB7046.eurprd04.prod.outlook.com (2603:10a6:20b:113::22) by DU2PR04MB8855.eurprd04.prod.outlook.com (2603:10a6:10:2e2::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8093.25; Tue, 29 Oct 2024 02:41:22 +0000 Received: from AM7PR04MB7046.eurprd04.prod.outlook.com ([fe80::d1ce:ea15:6648:6f90]) by AM7PR04MB7046.eurprd04.prod.outlook.com ([fe80::d1ce:ea15:6648:6f90%4]) with mapi id 15.20.8093.023; Tue, 29 Oct 2024 02:41:21 +0000 Message-ID: <1e8526e5-d9b7-42ac-9db3-13b42ccc4fbe@nxp.com> Date: Tue, 29 Oct 2024 10:41:43 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 00/13] Add ITE IT6263 LVDS to HDMI converter support To: Dmitry Baryshkov , Biju Das Cc: "dri-devel@lists.freedesktop.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-media@vger.kernel.org" , "imx@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" , "andrzej.hajda@intel.com" , "neil.armstrong@linaro.org" , "rfoss@kernel.org" , "laurent.pinchart" , "jonas@kwiboo.se" , "jernej.skrabec@gmail.com" , "maarten.lankhorst@linux.intel.com" , "mripard@kernel.org" , "tzimmermann@suse.de" , "airlied@gmail.com" , "simona@ffwll.ch" , "robh@kernel.org" , "krzk+dt@kernel.org" , "conor+dt@kernel.org" , "quic_jesszhan@quicinc.com" , "mchehab@kernel.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "catalin.marinas@arm.com" , "will@kernel.org" , "sakari.ailus@linux.intel.com" , "hverkuil@xs4all.nl" , "tomi.valkeinen@ideasonboard.com" , "quic_bjorande@quicinc.com" , "geert+renesas@glider.be" , "arnd@arndb.de" , "nfraprado@collabora.com" , "thierry.reding@gmail.com" , Prabhakar Mahadev Lad , "sam@ravnborg.org" , "marex@denx.de" References: <20241028023740.19732-1-victor.liu@nxp.com> <5ycxltnw3vhik3iype6ncuh4nelwwtom745o5dlf32qyiqh5bv@yjj5l6kb2psm> From: Liu Ying Content-Language: en-US In-Reply-To: <5ycxltnw3vhik3iype6ncuh4nelwwtom745o5dlf32qyiqh5bv@yjj5l6kb2psm> Content-Type: text/plain; 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Combined with LVDS receiver and HDMI 1.4a transmitter, >>>> the IT6263 supports LVDS input and HDMI 1.4 output by conversion >>>> function. IT6263 product link can be found at [1]. >>>> >>>> Patch 1 is a preparation patch to allow display mode of an existing >>>> panel to pass the added mode validation logic in patch 3. >>>> >>>> Patch 2 allows i.MX8MP LVDS Display Bridge(LDB) bridge driver to find >>>> the next non-panel bridge, that is the IT6263 in this case. >>>> >>>> Patch 3 adds mode validation logic to i.MX8MP LDB bridge driver >>>> against "ldb" clock so that it can filter out unsupported display >>>> modes read from EDID. >>>> >>>> Patch 4 adds MEDIA_BUS_FMT_RGB101010_1X7X5_{SPWG,JEIDA} support, as >>>> they are supported by IT6263(with LVDS data bit reversed order). >>>> >>>> Patch 5 makes drm_of.c use MEDIA_BUS_FMT_RGB101010_1X7X5_{JEIDA,SPWG}. >>>> >>>> Patch 6 supports getting dual-link LVDS pixel order for the sink side >>>> as needed by IT6263 driver. >>>> >>>> Patch 7 documents jeida-30 and vesa-30 data mappings in >>>> lvds-data-mapping.yaml, as needed by IT6263 DT binding. >>>> >>>> Patch 8 extracts common dual-link LVDS display properties into new >>>> lvds-dual-ports.yaml so that IT6263 DT binding can reference it. >>>> >>>> Patch 9 adds DT binding for IT6263. >>>> >>>> Patch 10 adds IT6263 bridge driver. Only video output is supported. >>>> >>>> Patch 11 adds DT overlays to support NXP adapter cards[2][3] with >>>> IT6263 populated. >>>> >>>> Patch 12 enables the IT6263 bridge driver in defconfig. >>>> >>>> Patch 13 updates MAINTAINERS to add maintainer for IT6263 driver. >>> >>> This has pretty complicated structure from the merging point of view. >>> >>> I propose we take patches 6, 8, 9 (without 30-bit formats, they can be dropped while applying), 11, 12 >>> (?) and 13 through drm-misc in one batch (once DT maintainers review the binding parts). This looks >>> like a minimal set, having no extra dependencies. >> >>> >>> The second set might be 4, 5 + new patch, re-adding 30-bit formats to >>> IT6263 binding (no driver changes are necessary). This can go in separately, after an Ack from media >>> maintainers. >>> >>> Of course both sets can go together if linux-media maintainers reacts quickly and ack merging media- >>> formats patch through drm-misc tree. I'm fine with merging the two sets through drm-misc tree as long as linux-media and dri-devel maintainers accept this. Up to them. >>> >>> The rest of the patches don't have such strong dependencies and go in once ready / reviewed. >>> >>> WDYT? >> >> I guess, 6,8,9(without 30-bit formats), 10, 12 and 13. >> >> 11 may have dependency on 1, 2 and 3 as it is SoC specific. > > Yes, of course, 10, not 11. > >> Then 4, 5 + new patch, re-adding 30-bit formats to IT6263 binding. I think it would be good to directly support 30-bit formats in IT6263 DT binding, not re-add them to it. This way, we'll have one version of the binding, not two. So, a better first set would contain patch 6, 7(one existing A-b from Krzysztof), 8, 9, 10, 12 and 13. -- Regards, Liu Ying