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([2001:861:44c0:66c0:4e93:9fa7:4d66:4f5c]) by smtp.gmail.com with ESMTPSA id z1sm1499817wrt.94.2021.10.12.06.27.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 Oct 2021 06:27:57 -0700 (PDT) Subject: Re: [PATCH v5 0/8] drm/omap: Add virtual-planes support To: Tomi Valkeinen Cc: linux-omap@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, khilman@baylibre.com References: <20210923070701.145377-1-narmstrong@baylibre.com> <99c11b0b-eab8-a7b9-8aab-8cc06be14cd5@ideasonboard.com> From: Neil Armstrong Organization: Baylibre Message-ID: Date: Tue, 12 Oct 2021 15:27:56 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <99c11b0b-eab8-a7b9-8aab-8cc06be14cd5@ideasonboard.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 12/10/2021 12:36, Tomi Valkeinen wrote: > On 12/10/2021 11:30, Neil Armstrong wrote: >> On 12/10/2021 09:15, Tomi Valkeinen wrote: >>> On 23/09/2021 10:06, Neil Armstrong wrote: >>>> This patchset is the follow-up the v4 patchset from Benoit Parrot at [1]. >>>> >>>> This patch series adds virtual-plane support to omapdrm driver to allow the use >>>> of display wider than 2048 pixels. >>>> >>>> In order to do so we introduce the concept of hw_overlay which can then be >>>> dynamically allocated to a plane. When the requested output width exceed what >>>> be supported by one overlay a second is then allocated if possible to handle >>>> display wider then 2048. >>>> >>>> This series replaces an earlier series which was DT based and using statically >>>> allocated resources. >>>> >>>> This implementation is inspired from the work done in msm/disp/mdp5 >>>> driver. >>>> >>>> Changes since v4 at [1]: >>>> - rebased on v5.15-rc2 >>> >>> What is this based on? Doesn't apply to v5.15-rc2, and "error: sha1 information is lacking or useless". >> >> Indeed the sha1 info is useless, it's based on v5.15-rc2 on top of "HACK: drm/omap: increase DSS5 max tv pclk to 192MHz" >> in order to validate on 2k monitors. > > I'm personally fine with removing the HACK from that, and applying it too. I used the patch for a long time without any issues. However, I never found anyone to confirm that 192MHz is fine (or that it's not fine). Too old HW for finding HW engineers to look at it =). Indeed it seems to be applied the TI trees for a long time now, will post it. Thanks, Neil > >  Tomi