From patchwork Mon Jan 23 15:45:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Morgan X-Patchwork-Id: 646257 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40CD0C38142 for ; Mon, 23 Jan 2023 15:46:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232358AbjAWPqN (ORCPT ); Mon, 23 Jan 2023 10:46:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231667AbjAWPqM (ORCPT ); Mon, 23 Jan 2023 10:46:12 -0500 Received: from mail-oi1-x232.google.com (mail-oi1-x232.google.com [IPv6:2607:f8b0:4864:20::232]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE9535592 for ; Mon, 23 Jan 2023 07:46:11 -0800 (PST) Received: by mail-oi1-x232.google.com with SMTP id o66so10700185oia.6 for ; Mon, 23 Jan 2023 07:46:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=VjT+KuUSRPoSSIx/ak1Yf8ilLHFBmPSpHObnSxuVDlk=; b=JkI3xCrdDTYGwjodwTGGhTGHwyPZCXe9UxkxyJ+qOV+Rxb/hr3pndUmtXFZAMlsObM +LBmtttWAsEfuB0V8CgqlCjAPnUTup4USr/X20JZFkU7uEZV1ADIWFIIWeRGBZHZIfdu 95cLe0PQ9fdZuK99Yu0MDVkh3BMB9ul2l5wIOd9hSiFACONeFDDE8yyB0E2aTFz46NtS MOpYvu297eKpfvmEdiIHBN3UgFczNsqvPnSHEsF3E622rqrkQ9ATRqeL5FOio1T4JynI X9rWkhPW56RW0/jywW5icpKwcWTfkGF/ecuBxJoj6yAXXFbIFFSMEIhnm7PYpaqQdWra fqyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=VjT+KuUSRPoSSIx/ak1Yf8ilLHFBmPSpHObnSxuVDlk=; b=IaULA1oOJ4dZ3+lXK69VMd9f6VSo1y5fZ9YGgURoWaf/LO/cDkk9khoD+OAZelX7Wg c9vTiMr3rIz1pqZYcTG6cC6pm8A6+rtrEuZBaYU4gFEcoj9QNA20EQNumhPa5OurMFjB PDINK+ACblSXv96sLreZZjm0Se5zh9gAj02q3GyAHRTOSicuM87AOE3mLPq3kmqfuj8+ zJGpO5EhaiIoUVUhpR5yyH4fGYTh8kbLMKcGdT6nqXw5EGaHOY6kkzESZ5ooDL0ZtFBH Q1jjVEyxWs08D0Lh5FMjFAqsN+KcZFC4WAphN+5IPYbFD/0OmXo4FXxCue0DvNU3ROnC gIhQ== X-Gm-Message-State: AFqh2kqwN7SgksNj5RNrhJkbOayDnvP6igHn4mZlRTa95gOZ9eFqjIqM hVds+gmgcoSMTYrokvcKeNA= X-Google-Smtp-Source: AMrXdXttBP2RmIY/4xw4OecWvT/GDZd3INZ+UJThZtbK5vEoxoW8KXfllMWRlNxkI6euPvlYpZ+tpA== X-Received: by 2002:aca:d956:0:b0:35a:33d:5651 with SMTP id q83-20020acad956000000b0035a033d5651mr10895196oig.14.1674488771053; Mon, 23 Jan 2023 07:46:11 -0800 (PST) Received: from localhost.localdomain ([76.244.6.13]) by smtp.gmail.com with ESMTPSA id w13-20020a056808140d00b0035e7ed5daa1sm10040132oiv.26.2023.01.23.07.46.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Jan 2023 07:46:10 -0800 (PST) From: Chris Morgan To: dri-devel@lists.freedesktop.org Cc: devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org, tzimmermann@suse.de, mripard@kernel.org, maarten.lankhorst@linux.intel.com, heiko@sntech.de, krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org, daniel@ffwll.ch, airlied@gmail.com, sam@ravnborg.org, thierry.reding@gmail.com, linus.walleij@linaro.org, Chris Morgan Subject: [PATCH V12 0/4] drm/panel: Add Magnachip D53E6EA8966 Panel Controller Date: Mon, 23 Jan 2023 09:45:59 -0600 Message-Id: <20230123154603.1315112-1-macroalpha82@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Chris Morgan Add the Magnachip D53E6EA8966 panel IC controller for display panels such as the Samsung AMS495QA01 panel as found on the Anbernic RG503. This panel uses DSI to receive video signals, but 3-wire SPI to receive command signals using DBI. Changes since V11: - Added a "Co-developed-by" tag for Maya to capture her contributions correctly. Changes since V10: - Guarded definition in drm_of.h with an additional #if statement. - Narrowed focus of drm_of_get_dsi_bus() to only return dsi_host (no longer populates node on the mipi_dsi_device_info struct). Changes since V9: - Set an ifdef to not add the drm_of_get_dsi_bus when MIPI_DSI is not part of the current kernel config. - Made "info" optional in the drm_of_get_dsi_bus() function. Changes since V8: - Set "placeholder" drm_of_get_dsi_bus in drm_of.h to static inline to hopefully eliminate the reported errors once and for all. Tested with 4 different kernel configurations provided by Intel's kernel test robot and no new warnings or errors were introduced. Reported-by: kernel test robot Changes since V7: - Removed Linus Walleij review note due to substantial changes. - Corrected documentation of drm_of_get_dsi_bus function. - Updated the drm_of_get_dsi_bus function to return pointer to mipi_dsi_host and use ERR_PTR macros. - Refactored drm_panel_funcs so that the prepare function calls panel specific function for init sequence and uses generic functions otherwise. - Renamed non-panel specific functions. - Changed backlight value to int instead of u32. - Corrected brightness function to use backlight_get_brightness(). - Fix an error reported when CONFIG_OF is selected but CONFIG_DRM_MIPI_DSI is not. Add an if function to drm_of_get_dsi_bus function to return -EINVAL in this instance. Reported-by: kernel test robot Changes since V6: - Fixed a trivial error with definition of drm_of_get_dsi_bus(). Reported-by: kernel test robot Changes since V5: - Reverted dt binding documentation name back to samsung,ams495qa01.yaml. - Removed no longer needed of_graph.h header file. - Added backlight as a dependency. Changes since V4: - Renamed driver from the panel model to the panel IC controller per DRM team. - Added a drm_of helper function of drm_of_get_dsi_bus() to handle finding and populating the DSI node when the DSI node is not the parent of the DSI controlled display. - Converted the documented commands to constants to make it more readable. - Reset GPIO is now required and documented as GPIO_ACTIVE_LOW. - Removed "prepared" logic from panel. Changes since V3: - Updated documentation to add spi-peripheral-props.yaml per updates made for similar devices. Note that I removed a "Reviewed-by" tag from Rob Herring since this change probably needs to be confirmed. - Added binding for RG503, since this device is now accepted with this request: https://lore.kernel.org/linux-rockchip/166274831283.21181.6861718157177507544.b4-ty@sntech.de/ Changes since V2: - Added 50hz mode at request of userspace devs. - Renamed "dupa" to panel name. Good catch Maya. - Added Maya's Signed-off-by. - Removed check for max backlight, since it is already done by backlight_device_set_brightness. - Fixed minor formatting issues on devicetree binding documentation and added port to provided example. Changes since V1: - Removed errant reference to backlight in documentation. This is an OLED panel. - Made elvss regulator optional. In my case its hard wired and not controllable. - Added "prepared" enum to track panel status to prevent unbalanced regulator enable/disable. Chris Morgan (4): drm: of: Add drm_of_get_dsi_bus helper function dt-bindings: display: panel: Add Samsung AMS495QA01 drm/panel: Add Magnachip D53E6EA8966 Panel Driver arm64: dts: rockchip: add display to RG503 .../display/panel/samsung,ams495qa01.yaml | 57 ++ .../dts/rockchip/rk3566-anbernic-rg503.dts | 55 ++ drivers/gpu/drm/drm_of.c | 51 ++ drivers/gpu/drm/panel/Kconfig | 11 + drivers/gpu/drm/panel/Makefile | 1 + .../drm/panel/panel-magnachip-d53e6ea8966.c | 522 ++++++++++++++++++ include/drm/drm_of.h | 12 + 7 files changed, 709 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml create mode 100644 drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c