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([2a01:e0a:106d:1080:79e1:f56b:445c:ca9c]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43fe4cb11b4sm60175178f8f.2.2026.04.24.02.34.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Apr 2026 02:34:34 -0700 (PDT) Message-ID: Date: Fri, 24 Apr 2026 11:34:33 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: Neil Armstrong Subject: Re: [PATCH 3/3] drm/panel: simple: Add Displaytech DT050BTFT-PTS panel To: Marek Vasut , dri-devel@lists.freedesktop.org Cc: Kael D'Alcamo , Bjorn Andersson , Conor Dooley , David Airlie , Jessica Zhang , Krzysztof Kozlowski , Lad Prabhakar , Maarten Lankhorst , Maxime Ripard , Rob Herring , Sam Ravnborg , Simona Vetter , Thierry Reding , Thomas Zimmermann , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260422210806.80948-1-marex@nabladev.com> <20260422210806.80948-3-marex@nabladev.com> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260422210806.80948-3-marex@nabladev.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 4/22/26 23:07, Marek Vasut wrote: > Add support for the Displaytech DT050BTFT-PTS 5.0" (800x480) color TFT > LCD panel, connected over DPI. Timings are taken from the datasheet > from 16 Nov 2023 is available from Seacomp: > > https://www.seacomp.com/sites/default/files/datasheets/DT050BTFT-Displaytech-Spec.pdf > > Signed-off-by: Marek Vasut > --- > Cc: "Kael D'Alcamo" > Cc: Bjorn Andersson > Cc: Conor Dooley > Cc: David Airlie > Cc: Jessica Zhang > Cc: Krzysztof Kozlowski > Cc: Lad Prabhakar > Cc: Maarten Lankhorst > Cc: Maxime Ripard > Cc: Neil Armstrong > Cc: Rob Herring > Cc: Sam Ravnborg > Cc: Simona Vetter > Cc: Thierry Reding > Cc: Thomas Zimmermann > Cc: devicetree@vger.kernel.org > Cc: dri-devel@lists.freedesktop.org > Cc: linux-kernel@vger.kernel.org > --- > drivers/gpu/drm/panel/panel-simple.c | 36 ++++++++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > > diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c > index 236bd56208ccf..9f4c907ae044e 100644 > --- a/drivers/gpu/drm/panel/panel-simple.c > +++ b/drivers/gpu/drm/panel/panel-simple.c > @@ -1902,6 +1902,39 @@ static const struct panel_desc dataimage_scf0700c48ggu18 = { > .connector_type = DRM_MODE_CONNECTOR_DPI, > }; > > +static const struct display_timing displaytech_dt050btft_pts_timing = { > + /* The TYP pixel clock are recalculated from tV * tH * 60 Hz */ > + .pixelclock = { 30000000, 33264000, 50000000 }, > + .hactive = { 800, 800, 800 }, > + .hfront_porch = { 16, 210, 354 }, > + /* Datasheet Figure 3 indicates, that tHPW is part of tHBP */ > + .hback_porch = { 41, 26, 6 }, > + .hsync_len = { 1, 20, 40 }, > + .vactive = { 480, 480, 480 }, > + .vfront_porch = { 7, 22, 147 }, > + /* Datasheet Figure 2 indicates, that tVPW is part of tVBP */ > + .vback_porch = { 22, 13, 3 }, > + .vsync_len = { 1, 10, 20 }, > + .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW | > + DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE | > + DISPLAY_FLAGS_SYNC_POSEDGE, > +}; > + > +static const struct panel_desc displaytech_dt050btft_pts = { > + .timings = &displaytech_dt050btft_pts_timing, > + .num_timings = 1, > + .bpc = 8, > + .size = { > + .width = 108, > + .height = 65, > + }, > + .bus_format = MEDIA_BUS_FMT_RGB888_1X24, > + .bus_flags = DRM_BUS_FLAG_DE_HIGH | > + DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE | > + DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE, > + .connector_type = DRM_MODE_CONNECTOR_DPI, > +}; > + > static const struct display_timing dlc_dlc0700yzg_1_timing = { > .pixelclock = { 45000000, 51200000, 57000000 }, > .hactive = { 1024, 1024, 1024 }, > @@ -5319,6 +5352,9 @@ static const struct of_device_id platform_of_match[] = { > }, { > .compatible = "dataimage,scf0700c48ggu18", > .data = &dataimage_scf0700c48ggu18, > + }, { > + .compatible = "displaytech,dt050btft-pts", > + .data = &displaytech_dt050btft_pts, > }, { > .compatible = "dlc,dlc0700yzg-1", > .data = &dlc_dlc0700yzg_1, Reviewed-by: Neil Armstrong Thanks, Neil