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Mon, 16 Sep 2019 12:02:05 +0000 (GMT) Subject: Re: [PATCH 00/11] ARM: dts: qcom: msm8974: add support for external display To: Brian Masney Cc: bjorn.andersson@linaro.org, robh+dt@kernel.org, agross@kernel.org, narmstrong@baylibre.com, robdclark@gmail.com, sean@poorly.run, airlied@linux.ie, daniel@ffwll.ch, mark.rutland@arm.com, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@siol.net, linus.walleij@linaro.org, enric.balletbo@collabora.com, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, freedreno@lists.freedesktop.org From: Andrzej Hajda Message-ID: <53f18b9f-ad23-563c-dc18-be71f3ec2c49@samsung.com> Date: Mon, 16 Sep 2019 14:02:04 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190916090150.GA349@onstation.org> Content-Transfer-Encoding: 7bit Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA02SfUzMcRzHfe/32M3Zr6vWR57W0VbMQ9bmu4VlHva1GTbzMNY4+i1Rh/sp wpRxVB66ilnX5dQ6hTNE5VpPruZqKSU90spkRWKT0ES6fpn+e33e7/fn+/l8ti9Pqa2sDx+h OyrqddpIDaukC58Nv1hYFhsXuuRHbxCuf/eLxpfraxS4tvwzjUcLUyhsqapn8KuhLyy2vXYg bO6tQ7j5xwcK13xqpnFiSg6Hr47kKnD+uxYGp5TXcbip2Mxia2ujAidn9DPYcWUX7s36SWFD aRWHO9OqUIgXsd2wIfKlzcCRJ505iJR+v0kTu6mTIxkJ6QzJv5PIkmrjSwV501LCkqLv3Qzp uuhUkEc5ccTa5kGcxR0cqbicRpPB/NmbhZ3K5WFiZESMqF+8co9yf+ZQGXW4QnX8rHN1PHql TEJuPAhBYM+0oCSk5NVCHoKBhuesXHxDcGawlJGLQQTGht+Kfy3mxmecbOQiMKT3K+RiAEGR pYlypTyEbdDT9JRzsafgD0NZzeMhSkihIbnCSLsMVgiA34/aWRerhJVge581rtOCHwz22RkX ewk74Gt3JSNn3KEmvWc84yYEgvlpGnIxJcyBogEzJbM3dPRYxoeB0M3D8MXSib3XQM3tMk5m D/jofDzBM2HUbpnIxEFX3jlKbk5AUPDATslGMFQ6G8e24McmBMD94sWyvAoMw6nIJYMwDdoG 3OUdpkFq4XVKllWQcF4tp32hq65g4kFvsDYMsUakMU26zDTpGtOka0z/595E9B3kLUZLUeGi tFQnHlskaaOkaF34on2HovLR2Oet/eP89gQVj+x1IIFHmqmqeMPpUDWjjZFioxwIeErjqdqe cDJUrQrTxp4Q9Yd266MjRcmBZvC0xlt1ckr3LrUQrj0qHhTFw6L+n6vg3Xzi0boVBXtDgkaN 1RuWvbnw4G2RmHGwKjD7zCff1nWGTWHZTelvn6deqmwvvLF1Jgk5su+aV0jAa73/evZue+jG 5JJYH9/pBxb0JdlOr4jpt4bNyvPU7SzI5ao99Q0m4pz68JZJsp6aF/PT6JXdei0xuG/ko19v BC6vLblnta313zI32Kihpf3awPmUXtL+BYA7zTu4AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA02Sa0hTYRiA+XbO2aY5+JyKX4IZi8yEpsfrp5lYEZ3qT1hkpGZHO6jkNtmZ kkkpiKSW5dB+OJeXdAWmhFpeunhZloloqWneVuaFslKJ8FKppVuB/5735Xk++OAVE9J6ykkc r9RwaiWbIBNak11rHaY9zSlpkZ753QD3TP4mcW5PpwB3tcyR+E+9lsAl7T0UfrswL8RVo0aA 9Z/WvYGlGQJ3fhsgcba2QoQLVu4JcO3kIIW1Ld0i3P9YL8SGd70CfLPoK4WNN8Lxp7JlAmc+ axdhU347CHFgqoqrADM/lCliGk0VgHm2WEoyTTqTiCnKKqSY2spsIfMqr0/AjA0+FTINi+MU 8+Fah4Cpq0hjDEN2TMfjERHTmptPMj9qtx2HZ+RBalWShtsep+I1+2ThNPaS0wFY7uUTIKe9 /SMDvXxlHsFB57mE+GRO7RF8Th53e6GZSGyVXMzoOJgO3lrnACsxgj5I3/tStMFSaACovnyv Ze+InpTMEha2QyuDOUKL8xWgzMaIDbaDp9BUf5u5tYduaKFsQJADrMUE1JLofvoD8yCFXwAy PcyiNiwh3I1W64bNL0lgMKqaLiM3mIQ70Y/PTWbHAZ5Gzxt1wOLYos7CKbNjBWmkb8s37wm4 C60U9xEWdkENs/p/7IhGpkoEeUCq25TrNiW6TYluU1IKyEpgzyXxilgFT8t5VsEnKWPlMSpF LVi/mfqXP+saQV/NCSOAYiCzkaRnXomUUmwyn6IwAiQmZPaSsKzUSKnkPJtyiVOrotRJCRxv BL7rn9MSTg4xqvULVGqiaF/aHwfQ/t7+3n5Y5ijJgm0RUhjLargLHJfIqf93ArGVUzqI3VoK R5ecx6//ehVz6JTHmPB9PN/ieXjX/vGPqaHV5Y9W2Cb9Dv0EF+IelVHtUiidnXjdHfjdL9dO dyU4yKA5+znHWe8YvWVtCQ2POClP9h05cKeOuuy2/+6xGYNrze5bDjYF83MXukNto+2VNV6u q1enQ1O2Z493hcUMLb85yr6QkXwcS7sTap79C0qOT2xJAwAA X-CMS-MailID: 20190916120206eucas1p25ac70e0190fdc206b2e92591975b600c X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20190815004916epcas3p4d8a62e215eff5e227721d3449e6bfbd3 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190815004916epcas3p4d8a62e215eff5e227721d3449e6bfbd3 References: <20190815004854.19860-1-masneyb@onstation.org> <2da29e80-73fb-8620-532e-0b5f54b00841@samsung.com> <20190916090150.GA349@onstation.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16.09.2019 11:01, Brian Masney wrote: > Hi Andrzej, > > On Mon, Sep 16, 2019 at 10:13:58AM +0200, Andrzej Hajda wrote: >> Hi Brian, >> >> On 15.08.2019 02:48, Brian Masney wrote: >>> This patch series begins to add support for the external display over >>> HDMI that is supported on msm8974 SoCs. I'm testing this series on the >>> Nexus 5, and I'm able to communicate with the HDMI bridge via the >>> analogix-anx78xx driver, however the external display is not working >>> yet. >>> >>> When I plug in the HDMI cable, the monitor detects that a device is >>> hooked up, but nothing is shown on the external monitor. The hot plug >>> detect GPIO (hpd-gpios) on the analogix-anx78xx bridge and MSM HDMI >>> drivers do not change state when the slimport adapter or HDMI cable is >>> plugged in or removed. I wonder if a regulator is not enabled somewhere? >>> I have a comment in patch 10 regarding 'hpd-gdsc-supply' that may >>> potentially be an issue. >>> >>> I'm still digging in on this, however I'd appreciate any feedback if >>> anyone has time. Most of these patches are ready now, so I marked the >>> ones that aren't ready with 'PATCH RFC'. >>> >>> I'm using an Analogix Semiconductor SP6001 SlimPort Micro-USB to 4K HDMI >>> Adapter to connect my phone to an external display via a standard HDMI >>> cable. This works just fine with the downstream MSM kernel using >>> Android. >> >> This patchset risks to be forgotten. To avoid it, at least partially, I >> can merge patches 1-5, is it OK for you? > That would be great if you could do that. I have queued 1-4 to drm-misc-next. 5th patch requires some discussion. Regards Andrzej > > Thanks, > > Brian > >