From patchwork Thu Nov 10 18:38:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13039154 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 690ABC4332F for ; Thu, 10 Nov 2022 18:42:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230195AbiKJSl5 (ORCPT ); Thu, 10 Nov 2022 13:41:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230196AbiKJSlz (ORCPT ); Thu, 10 Nov 2022 13:41:55 -0500 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFAF71CFCC for ; Thu, 10 Nov 2022 10:41:54 -0800 (PST) Received: by mail-pj1-x1030.google.com with SMTP id z5-20020a17090a8b8500b00210a3a2364fso6284310pjn.0 for ; Thu, 10 Nov 2022 10:41:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=cqU3x9vkbLtjNU1FJh6JVuSWjs+oEr1jyIRFKgRduT4=; b=bNT71HdgYJ2TqXy2S3GLLChXs9n4ZgPpLQoEf8E68Ec/wDYI0elP564wPg5ThaoUg1 n7asMTYqabuRKf3izCMR28b5cb0PzHAX/JzfJrojP5jJgOJ+CzrPZ6NJ6gBmzcAkqu2b cWjTeaVRbDHKN3jWtgzlVk0u5iqehYelhhKc4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cqU3x9vkbLtjNU1FJh6JVuSWjs+oEr1jyIRFKgRduT4=; b=tcqkfsigzo1WXvO1L8EGdmu18xbIT7kFvIO9V4z8elgvYHHETnGg77YY82Rhvr+lQX G3Xgm5BQe66KzIT33RDQJsJLL5Q5DcQFttZiPwhALXUuPHDYAG/eoHiX2PpyXEB55x3a dtllDJayojbRpX64lFdtR9v6yvQVQLMHK6gjwbW0OdWeORdXbVFREM8RgyKCvnG6go48 2WT3u2CrTz9bAsyfPn/gxmnGcQa3N+LCG6SrBNyXnyaxhLfOR8hiZuTBJUSM7RB1AhMB dSpY55gAh8jDnDgujl4PnVNHklug75PlJWq3zZB0YDEkQ2RnSq4X3leM27R3yYphWYs3 PSgw== X-Gm-Message-State: ANoB5pmZcYK58ueMclxXncpmYgYTatBbA63ETIc1gnIU2Lc1h40j23vE /pcMiOfmaP3roBrwB4DnutQj0A== X-Google-Smtp-Source: AA0mqf5/02XbF54hY7RxiM+Rm+XhHMwHVdF0HFQm0BynH/XxCifCy+W7ni+QA/+HOnPnqu5GV0Pc2g== X-Received: by 2002:a17:902:c3d1:b0:188:758f:f473 with SMTP id j17-20020a170902c3d100b00188758ff473mr25676803plj.113.1668105714235; Thu, 10 Nov 2022 10:41:54 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a809:b5a4:486a:f07:f67e]) by smtp.gmail.com with ESMTPSA id c2-20020a170903234200b001869efb722csm11635627plh.215.2022.11.10.10.41.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Nov 2022 10:41:53 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Fancy Fang , Tim Harvey , Michael Nazzareno Trimarchi , Adam Ford , Neil Armstrong , Robert Foss , Laurent Pinchart , Tommaso Merciai , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v8 14/14] drm: bridge: samsung-dsim: Add i.MX8M Plus support Date: Fri, 11 Nov 2022 00:08:53 +0530 Message-Id: <20221110183853.3678209-15-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221110183853.3678209-1-jagan@amarulasolutions.com> References: <20221110183853.3678209-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Marek Vasut Add extras to support i.MX8M Plus. The main change is the removal of HS/VS/DE signal inversion in the LCDIFv3-DSIM glue logic, otherwise the implementation of this IP in i.MX8M Plus is very much compatible with the i.MX8M Mini/Nano one. Signed-off-by: Marek Vasut Signed-off-by: Jagan Teki --- drivers/gpu/drm/bridge/samsung-dsim.c | 26 +++++++++++++++++++++++++- include/drm/bridge/samsung-dsim.h | 1 + 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 41aa998f5bc4..b31a344ab3bf 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -463,6 +463,7 @@ samsung_dsim_types[SAMSUNG_DSIM_TYPE_COUNT] = { [SAMSUNG_DSIM_TYPE_EXYNOS5422] = &exynos5422_dsi_driver_data, [SAMSUNG_DSIM_TYPE_EXYNOS5433] = &exynos5433_dsi_driver_data, [SAMSUNG_DSIM_TYPE_IMX8MM] = &imx8mm_dsi_driver_data, + [SAMSUNG_DSIM_TYPE_IMX8MP] = &imx8mm_dsi_driver_data, }; static inline struct samsung_dsim *host_to_dsi(struct mipi_dsi_host *h) @@ -1425,10 +1426,17 @@ static int samsung_dsim_atomic_check(struct drm_bridge *bridge, * 13.6.2.7.2 RGB interface * both claim "Vsync, Hsync, and VDEN are active high signals.", the * LCDIF must generate inverted HS/VS/DE signals, i.e. active LOW. + * + * The i.MX8M Plus glue logic between LCDIFv3 and DSIM does not + * implement the same behavior, therefore LCDIFv3 must generate + * HS/VS/DE signals active HIGH. */ if (dsi->plat_data->hw_type == SAMSUNG_DSIM_TYPE_IMX8MM) { adjusted_mode->flags |= (DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); adjusted_mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); + } else if (dsi->plat_data->hw_type == SAMSUNG_DSIM_TYPE_IMX8MP) { + adjusted_mode->flags &= ~(DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); + adjusted_mode->flags |= (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); } return 0; @@ -1461,7 +1469,8 @@ static int samsung_dsim_attach(struct drm_bridge *bridge, * Passing NULL to the previous bridge makes Exynos DSI drivers * work which is exactly done before. */ - if (!(dsi->plat_data->hw_type == SAMSUNG_DSIM_TYPE_IMX8MM)) + if (dsi->plat_data->hw_type != SAMSUNG_DSIM_TYPE_IMX8MM && + dsi->plat_data->hw_type != SAMSUNG_DSIM_TYPE_IMX8MP) previous = NULL; return drm_bridge_attach(bridge->encoder, dsi->out_bridge, previous, @@ -1662,6 +1671,10 @@ static const struct samsung_dsim_host_ops samsung_dsim_generic_host_ops = { .unregister_host = samsung_dsim_unregister_host, }; +static const struct drm_bridge_timings samsung_dsim_bridge_timings_de_high = { + .input_bus_flags = DRM_BUS_FLAG_DE_HIGH, +}; + static const struct drm_bridge_timings samsung_dsim_bridge_timings_de_low = { .input_bus_flags = DRM_BUS_FLAG_DE_LOW, }; @@ -1751,6 +1764,8 @@ int samsung_dsim_probe(struct platform_device *pdev) /* DE_LOW: i.MX8M Mini/Nano LCDIF-DSIM glue logic inverts HS/VS/DE */ if (dsi->plat_data->hw_type == SAMSUNG_DSIM_TYPE_IMX8MM) dsi->bridge.timings = &samsung_dsim_bridge_timings_de_low; + else + dsi->bridge.timings = &samsung_dsim_bridge_timings_de_high; if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host) ret = dsi->plat_data->host_ops->register_host(dsi); @@ -1857,11 +1872,20 @@ static const struct samsung_dsim_plat_data samsung_dsim_imx8mm_pdata = { .host_ops = &samsung_dsim_generic_host_ops, }; +static const struct samsung_dsim_plat_data samsung_dsim_imx8mp_pdata = { + .hw_type = SAMSUNG_DSIM_TYPE_IMX8MP, + .host_ops = &samsung_dsim_generic_host_ops, +}; + static const struct of_device_id samsung_dsim_of_match[] = { { .compatible = "fsl,imx8mm-mipi-dsim", .data = &samsung_dsim_imx8mm_pdata, }, + { + .compatible = "fsl,imx8mp-mipi-dsim", + .data = &samsung_dsim_imx8mp_pdata, + }, { /* sentinel. */ } }; MODULE_DEVICE_TABLE(of, samsung_dsim_of_match); diff --git a/include/drm/bridge/samsung-dsim.h b/include/drm/bridge/samsung-dsim.h index df3d030daec6..3789f9dbb238 100644 --- a/include/drm/bridge/samsung-dsim.h +++ b/include/drm/bridge/samsung-dsim.h @@ -28,6 +28,7 @@ enum samsung_dsim_type { SAMSUNG_DSIM_TYPE_EXYNOS5422, SAMSUNG_DSIM_TYPE_EXYNOS5433, SAMSUNG_DSIM_TYPE_IMX8MM, + SAMSUNG_DSIM_TYPE_IMX8MP, SAMSUNG_DSIM_TYPE_COUNT, };