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[61.220.137.37]) by smtp.gmail.com with ESMTPSA id e18sm706862pgr.53.2020.08.26.22.04.55 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Aug 2020 22:04:57 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Subject: Re: [PATCH] drm/i915/lspcon: Limits to 8 bpc for RGB/YCbCr444 From: Kai Heng Feng In-Reply-To: <20200826162458.GP6112@intel.com> Date: Thu, 27 Aug 2020 13:04:54 +0800 Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter , Uma Shankar , Lucas De Marchi , Maarten Lankhorst , Gwan-gyeong Mun , intel-gfx@lists.freedesktop.org, "open list:DRM DRIVERS" , open list Content-Transfer-Encoding: 8BIT Message-Id: <6D40F1E0-AFF6-4D38-BB9B-C52B43F83266@canonical.com> References: <20200826052143.17607-1-kai.heng.feng@canonical.com> <20200826162458.GP6112@intel.com> To: =?utf-8?B?VmlsbGUgU3lyasOkbMOk?= X-Mailer: Apple Mail (2.3608.80.23.2.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ville, > On Aug 27, 2020, at 12:24 AM, Ville Syrjälä wrote: > > On Wed, Aug 26, 2020 at 01:21:15PM +0800, Kai-Heng Feng wrote: >> LSPCON only supports 8 bpc for RGB/YCbCr444. >> >> Set the correct bpp otherwise it renders blank screen. > > Hmm. Does > git://github.com/vsyrjala/linux.git dp_downstream_ports_5 > work? > > Actually better make that dp_downstream_ports_5^^^^^^^^^^^ aka. > 54d846ce62a2 ("drm/i915: Do YCbCr 444->420 conversion via DP protocol > converters") to avoid the experiments and hacks I have sitting on top. Can you please rebase it to mainline master or drm-tip? I am getting errors on the branch: DESCEND objtool CALL scripts/atomic/check-atomics.sh CALL scripts/checksyscalls.sh CHK include/generated/compile.h Building modules, stage 2. MODPOST 166 modules LD arch/x86/boot/compressed/vmlinux ld: arch/x86/boot/compressed/pgtable_64.o:(.bss+0x0): multiple definition of `__force_order'; arch/x86/boot/compressed/kaslr_64.o:(.bss+0x0): first defined here ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE make[2]: *** [arch/x86/boot/compressed/Makefile:119: arch/x86/boot/compressed/vmlinux] Error 1 make[1]: *** [arch/x86/boot/Makefile:113: arch/x86/boot/compressed/vmlinux] Error 2 make: *** [arch/x86/Makefile:284: bzImage] Error 2 make: *** Waiting for unfinished jobs.... Kai-Heng > >> >> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2195 >> Signed-off-by: Kai-Heng Feng >> --- >> drivers/gpu/drm/i915/display/intel_lspcon.c | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c >> index b781bf469644..c7a44fcaade8 100644 >> --- a/drivers/gpu/drm/i915/display/intel_lspcon.c >> +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c >> @@ -196,7 +196,8 @@ void lspcon_ycbcr420_config(struct drm_connector *connector, >> crtc_state->port_clock /= 2; >> crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR444; >> crtc_state->lspcon_downsampling = true; >> - } >> + } else >> + crtc_state->pipe_bpp = 24; >> } >> >> static bool lspcon_probe(struct intel_lspcon *lspcon) >> -- >> 2.17.1 > > -- > Ville Syrjälä > Intel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6463CC433E3 for ; Thu, 27 Aug 2020 06:58:43 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3E19122B4E for ; Thu, 27 Aug 2020 06:58:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3E19122B4E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1DE456EB55; Thu, 27 Aug 2020 06:57:44 +0000 (UTC) Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7F4F66E227 for ; Thu, 27 Aug 2020 05:05:02 +0000 (UTC) Received: from mail-pg1-f199.google.com ([209.85.215.199]) by youngberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1kBA5s-0007kv-Ol for dri-devel@lists.freedesktop.org; Thu, 27 Aug 2020 05:05:01 +0000 Received: by mail-pg1-f199.google.com with SMTP id h3so3158302pgc.10 for ; Wed, 26 Aug 2020 22:05:00 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=YdElzvEEzIZMoY70IuBjuGvXpacb2hD+V+ygH2R0Kww=; b=Yn7G1ye4WX5oEnMpQa0y6koci481gl6ajVA2vA7nwO1AoJQE6bBB09WAhu+qSins0x ETZVE3W83rS8D825eN73yU2xro0t34VadFTZITqHzv9NFQEao2ich7jaA/M989itxx2F IakGX5qnuAvddrEKEap6GY/64T3E5FSDSTlI9R0ihiYarcwQ4w7NJ0/4G0sZEpaep7G/ wROFMAMt3+k37HMNFs+srUBmd4CD8dsbtlNMsHDuV5Y8ZlcZcoxozAj3A/+Do9h129rS ed3SNhTrpw1P0moRwQ2x/TkgROWwP8LtJHO/TuXSc9k/w54TW7wdVdFBXPEVdctgMn6R qQtw== X-Gm-Message-State: AOAM531iWZ0BXUaliDakk453Js3PW4pnR4j6ynmP86QDQeWjNyW00mOr Jcj9hDtI/OP9JBptmcHzFWM3hpx+7iQXIvio1oKpwA/W9/6TWq4sF9Vp/a8nccl4lob5fMcT958 n3NVEMqe9LXqFt56XCJ24cPLLdhJ8JziNwFEDoF5i+JFIKQ== X-Received: by 2002:a17:902:6901:: with SMTP id j1mr13760849plk.324.1598504699131; Wed, 26 Aug 2020 22:04:59 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx+UGqUliAa1+G+gZIQl310W3J/Ylr5FD4q1saGLt0R+NEWvYJ1bqF+bGNBf4XTpqrtBbJ9xg== X-Received: by 2002:a17:902:6901:: with SMTP id j1mr13760821plk.324.1598504698624; Wed, 26 Aug 2020 22:04:58 -0700 (PDT) Received: from [10.101.46.234] (61-220-137-37.HINET-IP.hinet.net. [61.220.137.37]) by smtp.gmail.com with ESMTPSA id e18sm706862pgr.53.2020.08.26.22.04.55 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Aug 2020 22:04:57 -0700 (PDT) Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Subject: Re: [PATCH] drm/i915/lspcon: Limits to 8 bpc for RGB/YCbCr444 From: Kai Heng Feng In-Reply-To: <20200826162458.GP6112@intel.com> Date: Thu, 27 Aug 2020 13:04:54 +0800 Message-Id: <6D40F1E0-AFF6-4D38-BB9B-C52B43F83266@canonical.com> References: <20200826052143.17607-1-kai.heng.feng@canonical.com> <20200826162458.GP6112@intel.com> To: =?utf-8?B?VmlsbGUgU3lyasOkbMOk?= X-Mailer: Apple Mail (2.3608.80.23.2.2) X-Mailman-Approved-At: Thu, 27 Aug 2020 06:57:36 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , intel-gfx@lists.freedesktop.org, Lucas De Marchi , open list , Gwan-gyeong Mun , Uma Shankar , "open list:DRM DRIVERS" , Rodrigo Vivi Content-Type: text/plain; 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[61.220.137.37]) by smtp.gmail.com with ESMTPSA id e18sm706862pgr.53.2020.08.26.22.04.55 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Aug 2020 22:04:57 -0700 (PDT) Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) From: Kai Heng Feng In-Reply-To: <20200826162458.GP6112@intel.com> Date: Thu, 27 Aug 2020 13:04:54 +0800 Message-Id: <6D40F1E0-AFF6-4D38-BB9B-C52B43F83266@canonical.com> References: <20200826052143.17607-1-kai.heng.feng@canonical.com> <20200826162458.GP6112@intel.com> To: =?utf-8?B?VmlsbGUgU3lyasOkbMOk?= X-Mailer: Apple Mail (2.3608.80.23.2.2) Subject: Re: [Intel-gfx] [PATCH] drm/i915/lspcon: Limits to 8 bpc for RGB/YCbCr444 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , intel-gfx@lists.freedesktop.org, Lucas De Marchi , open list , "open list:DRM DRIVERS" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" SGkgVmlsbGUsCgo+IE9uIEF1ZyAyNywgMjAyMCwgYXQgMTI6MjQgQU0sIFZpbGxlIFN5cmrDpGzD pCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+IHdyb3RlOgo+IAo+IE9uIFdlZCwgQXVn IDI2LCAyMDIwIGF0IDAxOjIxOjE1UE0gKzA4MDAsIEthaS1IZW5nIEZlbmcgd3JvdGU6Cj4+IExT UENPTiBvbmx5IHN1cHBvcnRzIDggYnBjIGZvciBSR0IvWUNiQ3I0NDQuCj4+IAo+PiBTZXQgdGhl IGNvcnJlY3QgYnBwIG90aGVyd2lzZSBpdCByZW5kZXJzIGJsYW5rIHNjcmVlbi4KPiAKPiBIbW0u IERvZXMgCj4gZ2l0Oi8vZ2l0aHViLmNvbS92c3lyamFsYS9saW51eC5naXQgZHBfZG93bnN0cmVh bV9wb3J0c181Cj4gd29yaz8KPiAKPiBBY3R1YWxseSBiZXR0ZXIgbWFrZSB0aGF0IGRwX2Rvd25z dHJlYW1fcG9ydHNfNV5eXl5eXl5eXl5eIGFrYS4KPiA1NGQ4NDZjZTYyYTIgKCJkcm0vaTkxNTog RG8gWUNiQ3IgNDQ0LT40MjAgY29udmVyc2lvbiB2aWEgRFAgcHJvdG9jb2wKPiBjb252ZXJ0ZXJz IikgdG8gYXZvaWQgdGhlIGV4cGVyaW1lbnRzIGFuZCBoYWNrcyBJIGhhdmUgc2l0dGluZyBvbiB0 b3AuCgpDYW4geW91IHBsZWFzZSByZWJhc2UgaXQgdG8gbWFpbmxpbmUgbWFzdGVyIG9yIGRybS10 aXA/CgpJIGFtIGdldHRpbmcgZXJyb3JzIG9uIHRoZSBicmFuY2g6CgogIERFU0NFTkQgIG9ianRv b2wKICBDQUxMICAgIHNjcmlwdHMvYXRvbWljL2NoZWNrLWF0b21pY3Muc2gKICBDQUxMICAgIHNj cmlwdHMvY2hlY2tzeXNjYWxscy5zaAogIENISyAgICAgaW5jbHVkZS9nZW5lcmF0ZWQvY29tcGls ZS5oCiAgQnVpbGRpbmcgbW9kdWxlcywgc3RhZ2UgMi4KICBNT0RQT1NUIDE2NiBtb2R1bGVzCiAg TEQgICAgICBhcmNoL3g4Ni9ib290L2NvbXByZXNzZWQvdm1saW51eApsZDogYXJjaC94ODYvYm9v dC9jb21wcmVzc2VkL3BndGFibGVfNjQubzooLmJzcysweDApOiBtdWx0aXBsZSBkZWZpbml0aW9u IG9mIGBfX2ZvcmNlX29yZGVyJzsgYXJjaC94ODYvYm9vdC9jb21wcmVzc2VkL2thc2xyXzY0Lm86 KC5ic3MrMHgwKTogZmlyc3QgZGVmaW5lZCBoZXJlCmxkOiBhcmNoL3g4Ni9ib290L2NvbXByZXNz ZWQvaGVhZF82NC5vOiB3YXJuaW5nOiByZWxvY2F0aW9uIGluIHJlYWQtb25seSBzZWN0aW9uIGAu aGVhZC50ZXh0JwpsZDogd2FybmluZzogY3JlYXRpbmcgRFRfVEVYVFJFTCBpbiBhIFBJRQptYWtl WzJdOiAqKiogW2FyY2gveDg2L2Jvb3QvY29tcHJlc3NlZC9NYWtlZmlsZToxMTk6IGFyY2gveDg2 L2Jvb3QvY29tcHJlc3NlZC92bWxpbnV4XSBFcnJvciAxCm1ha2VbMV06ICoqKiBbYXJjaC94ODYv Ym9vdC9NYWtlZmlsZToxMTM6IGFyY2gveDg2L2Jvb3QvY29tcHJlc3NlZC92bWxpbnV4XSBFcnJv ciAyCm1ha2U6ICoqKiBbYXJjaC94ODYvTWFrZWZpbGU6Mjg0OiBiekltYWdlXSBFcnJvciAyCm1h a2U6ICoqKiBXYWl0aW5nIGZvciB1bmZpbmlzaGVkIGpvYnMuLi4uCgpLYWktSGVuZwoKPiAKPj4g Cj4+IENsb3NlczogaHR0cHM6Ly9naXRsYWIuZnJlZWRlc2t0b3Aub3JnL2RybS9pbnRlbC8tL2lz c3Vlcy8yMTk1Cj4+IFNpZ25lZC1vZmYtYnk6IEthaS1IZW5nIEZlbmcgPGthaS5oZW5nLmZlbmdA Y2Fub25pY2FsLmNvbT4KPj4gLS0tCj4+IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50 ZWxfbHNwY29uLmMgfCAzICsrLQo+PiAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25zKCspLCAx IGRlbGV0aW9uKC0pCj4+IAo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlz cGxheS9pbnRlbF9sc3Bjb24uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxf bHNwY29uLmMKPj4gaW5kZXggYjc4MWJmNDY5NjQ0Li5jN2E0NGZjYWFkZTggMTAwNjQ0Cj4+IC0t LSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfbHNwY29uLmMKPj4gKysrIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9sc3Bjb24uYwo+PiBAQCAtMTk2LDcg KzE5Niw4IEBAIHZvaWQgbHNwY29uX3ljYmNyNDIwX2NvbmZpZyhzdHJ1Y3QgZHJtX2Nvbm5lY3Rv ciAqY29ubmVjdG9yLAo+PiAJCWNydGNfc3RhdGUtPnBvcnRfY2xvY2sgLz0gMjsKPj4gCQljcnRj X3N0YXRlLT5vdXRwdXRfZm9ybWF0ID0gSU5URUxfT1VUUFVUX0ZPUk1BVF9ZQ0JDUjQ0NDsKPj4g CQljcnRjX3N0YXRlLT5sc3Bjb25fZG93bnNhbXBsaW5nID0gdHJ1ZTsKPj4gLQl9Cj4+ICsJfSBl bHNlCj4+ICsJCWNydGNfc3RhdGUtPnBpcGVfYnBwID0gMjQ7Cj4+IH0KPj4gCj4+IHN0YXRpYyBi b29sIGxzcGNvbl9wcm9iZShzdHJ1Y3QgaW50ZWxfbHNwY29uICpsc3Bjb24pCj4+IC0tIAo+PiAy LjE3LjEKPiAKPiAtLSAKPiBWaWxsZSBTeXJqw6Rsw6QKPiBJbnRlbAoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJ bnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==