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([2a01:e0a:106d:1080:9476:5165:3a16:262]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4abf5b286a0sm228365785e9.4.2026.11.02.05.19.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Nov 2026 05:19:49 -0800 (PST) Message-ID: Date: Mon, 2 Nov 2026 14:19:49 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: Neil Armstrong Subject: Re: [PATCH v4 3/7] drm/panel: Add LG LH400WV3-SD04 MIPI DBI Type B panel driver To: Svyatoslav Ryhel , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , Mikko Perttunen Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org References: <20261022132259.240717-1-clamor95@gmail.com> <20261022132259.240717-4-clamor95@gmail.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: <20261022132259.240717-4-clamor95@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/22/26 15:22, Svyatoslav Ryhel wrote: > Add a driver for panel used in LG Optimus 2X P990. Panel is 4" WVGA MIPI > DBI Type B linked to DRM encoder via RGB to DBI bridge. > > Signed-off-by: Svyatoslav Ryhel > --- > drivers/gpu/drm/panel/Kconfig | 13 ++ > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-lg-lh400wv3.c | 236 ++++++++++++++++++++++ > 3 files changed, 250 insertions(+) > create mode 100644 drivers/gpu/drm/panel/panel-lg-lh400wv3.c > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 5f68b78526c3e..f29b63ad8ba0f 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -554,6 +554,19 @@ config DRM_PANEL_LG_LG4573 > Say Y here if you want to enable support for LG4573 RGB panel. > To compile this driver as a module, choose M here. > > +config DRM_PANEL_LG_LH400WV3 > + tristate "LG LH400WV3 MIPI DBI Type B panel" > + depends on OF > + depends on BACKLIGHT_CLASS_DEVICE > + select DRM_MIPI_DBI > + select VIDEOMODE_HELPERS > + help > + Say Y here if you want to enable support for the LG LH400WV3 MIPI > + DBI Type B panel found in the LG Optimus 2X P990 smartphone. > + > + To compile this driver as a module, choose M here: the module will > + be called panel-lg-lh400wv3. > + > config DRM_PANEL_LG_SW43408 > tristate "LG SW43408 panel" > depends on GPIOLIB > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index 414267a49d922..842a2a973777f 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -54,6 +54,7 @@ obj-$(CONFIG_DRM_PANEL_LINCOLNTECH_LCD197) += panel-lincolntech-lcd197.o > obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o > obj-$(CONFIG_DRM_PANEL_LG_LD070WX3) += panel-lg-ld070wx3.o > obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o > +obj-$(CONFIG_DRM_PANEL_LG_LH400WV3) += panel-lg-lh400wv3.o > obj-$(CONFIG_DRM_PANEL_LG_SW43408) += panel-lg-sw43408.o > obj-$(CONFIG_DRM_PANEL_LXD_M9189A) += panel-lxd-m9189a.o > obj-$(CONFIG_DRM_PANEL_MAGNACHIP_D53E6EA8966) += panel-magnachip-d53e6ea8966.o > diff --git a/drivers/gpu/drm/panel/panel-lg-lh400wv3.c b/drivers/gpu/drm/panel/panel-lg-lh400wv3.c > new file mode 100644 > index 0000000000000..557bcb6f2ca70 > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-lg-lh400wv3.c > @@ -0,0 +1,236 @@ > +// SPDX-License-Identifier: GPL-2.0-only > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#include