From patchwork Tue Sep 5 17:43:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13374849 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 D9130C83F3E for ; Tue, 5 Sep 2023 18:14:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240442AbjIESOa (ORCPT ); Tue, 5 Sep 2023 14:14:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240854AbjIESOS (ORCPT ); Tue, 5 Sep 2023 14:14:18 -0400 Received: from mail-lj1-x235.google.com (mail-lj1-x235.google.com [IPv6:2a00:1450:4864:20::235]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFD9C2303B for ; Tue, 5 Sep 2023 10:44:53 -0700 (PDT) Received: by mail-lj1-x235.google.com with SMTP id 38308e7fff4ca-2bcb89b476bso43355251fa.1 for ; Tue, 05 Sep 2023 10:44:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1693935836; x=1694540636; darn=vger.kernel.org; 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=7uOqmerGvTSg2KHk6AGJXGCXGcyQjRDDbjTmiUMSJN8=; b=YNtiK4N9LBW7QYEOVyk21kuu158+4wJA7LZ8trTzIZbrGgaIb9IA3eOSWFdR0Mz5sX Ys6I5VHC6hcMyCE8zWJw7rTAFxmCASZuQ4bQSmTQZT0/KORePT/EIwHohoxMBV2ejqmE AJU1+fbUuxmQAtC02HL2PuYxupqYl1mId1pncLev4X8AvCSFoAALKn9jsnnEG/qHThqg SMYQRgKE3dMNpyykuDdTBDXkVhIfaDrmqMcPOaGQLdqxp4ULM6MOr2tNuhpjeug5aEJK 7/kxYj1/VXWq4a/htgOPEIzmncOVNrV3ki8yIEcTFQ+3jYogBElTnTRcfzqKd+FRh1yU dQjw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693935836; x=1694540636; 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=7uOqmerGvTSg2KHk6AGJXGCXGcyQjRDDbjTmiUMSJN8=; b=a9z+e8F3JXRAvEnhEWYfe2OqtLQJc62v1QM4j5NsxSsvVKRRPSY+9pC2KrAsDMc1EU 26L7GoMjJ9OkzXLh+fQvPNm3FMxUfaMTauMi/TiHSK7Ql9uSYkNkH08B2j+x+KT7Jlq+ /hrXU4KMiPC22KEIYDDCyU6UHWXuJoNyXBzkiRKJttwepeZULtu2BX43xAW6grN6mIj5 OUsmBR13Suvm+f5Hvq3orZInVbaumAzDUSrYvGDdj+Kl+LKaXvxRP817A0EEWDW4q87d h3PNbSF7mhlw8z4dp0sM2d0SrncGGV9dE/5DN1E/JLiLm5Y9oyV2fTzohHA0pBzxfEIN rlKg== X-Gm-Message-State: AOJu0Yz6ZcoHgGFhVd4b2apbOEDLO9XPYMe6zx4agdSk+NDX5v+R04tI guxGJfAoUPZL/rUfUi41CvbWXA== X-Google-Smtp-Source: AGHT+IFqKq8IzHRLohEGFtoXgB2/40bIW0rjb7SrIT6YuKN6nzsmuaUPPbHHu4qm/p4Igaob2dclxg== X-Received: by 2002:a2e:9cc5:0:b0:2bc:ffcc:6cc0 with SMTP id g5-20020a2e9cc5000000b002bcffcc6cc0mr307906ljj.17.1693935836247; Tue, 05 Sep 2023 10:43:56 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id v10-20020a2e7a0a000000b002bce8404157sm3045922ljc.12.2023.09.05.10.43.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Sep 2023 10:43:55 -0700 (PDT) From: Dmitry Baryshkov To: Rob Clark , Sean Paul , Abhinav Kumar , Marijn Suijten Cc: Stephen Boyd , David Airlie , Daniel Vetter , Bjorn Andersson , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH 3/6] drm/msm/dpu: support binding to the mdp5 devices Date: Tue, 5 Sep 2023 20:43:50 +0300 Message-Id: <20230905174353.3118648-4-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230905174353.3118648-1-dmitry.baryshkov@linaro.org> References: <20230905174353.3118648-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Existing MDP5 devices have slightly different bindings. The main register region is called `mdp_phys' instead of `mdp'. Also vbif register regions are a part of the parent, MDSS device. Add support for handling this binding differences. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 88 ++++++++++++++++++++----- drivers/gpu/drm/msm/msm_drv.h | 3 + drivers/gpu/drm/msm/msm_io_utils.c | 18 +++++ 3 files changed, 91 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index aa6ba2cf4b84..a9ba67e24e11 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1054,37 +1054,53 @@ unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) #define DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE 412500000 -static int dpu_kms_hw_init(struct msm_kms *kms) +static int dpu_kms_mmap_mdp5(struct dpu_kms *dpu_kms) { - struct dpu_kms *dpu_kms; - struct drm_device *dev; - int i, rc = -EINVAL; - unsigned long max_core_clk_rate; - u32 core_rev; + struct platform_device *mdss_dev; + int rc; - if (!kms) { - DPU_ERROR("invalid kms\n"); + mdss_dev = to_platform_device(dpu_kms->pdev->dev.parent); + + dpu_kms->mmio = msm_ioremap(dpu_kms->pdev, "mdp_phys"); + if (IS_ERR(dpu_kms->mmio)) { + rc = PTR_ERR(dpu_kms->mmio); + DPU_ERROR("mdp register memory map failed: %d\n", rc); + dpu_kms->mmio = NULL; return rc; } + DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio); - dpu_kms = to_dpu_kms(kms); - dev = dpu_kms->dev; + dpu_kms->vbif[VBIF_RT] = msm_ioremap_mdss(mdss_dev, + dpu_kms->pdev, + "vbif_phys"); + if (IS_ERR(dpu_kms->vbif[VBIF_RT])) { + rc = PTR_ERR(dpu_kms->vbif[VBIF_RT]); + DPU_ERROR("vbif register memory map failed: %d\n", rc); + dpu_kms->vbif[VBIF_RT] = NULL; + return rc; + } - dev->mode_config.cursor_width = 512; - dev->mode_config.cursor_height = 512; + dpu_kms->vbif[VBIF_NRT] = msm_ioremap_mdss(mdss_dev, + dpu_kms->pdev, + "vbif_nrt_phys"); + if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { + dpu_kms->vbif[VBIF_NRT] = NULL; + DPU_DEBUG("VBIF NRT is not defined"); + } - rc = dpu_kms_global_obj_init(dpu_kms); - if (rc) - return rc; + return 0; +} - atomic_set(&dpu_kms->bandwidth_ref, 0); +static int dpu_kms_mmap_dpu(struct dpu_kms *dpu_kms) +{ + int rc; dpu_kms->mmio = msm_ioremap(dpu_kms->pdev, "mdp"); if (IS_ERR(dpu_kms->mmio)) { rc = PTR_ERR(dpu_kms->mmio); DPU_ERROR("mdp register memory map failed: %d\n", rc); dpu_kms->mmio = NULL; - goto error; + return rc; } DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio); @@ -1093,14 +1109,50 @@ static int dpu_kms_hw_init(struct msm_kms *kms) rc = PTR_ERR(dpu_kms->vbif[VBIF_RT]); DPU_ERROR("vbif register memory map failed: %d\n", rc); dpu_kms->vbif[VBIF_RT] = NULL; - goto error; + return rc; } + dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(dpu_kms->pdev, "vbif_nrt"); if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { dpu_kms->vbif[VBIF_NRT] = NULL; DPU_DEBUG("VBIF NRT is not defined"); } + return 0; +} + +static int dpu_kms_hw_init(struct msm_kms *kms) +{ + struct dpu_kms *dpu_kms; + struct drm_device *dev; + int i, rc = -EINVAL; + unsigned long max_core_clk_rate; + u32 core_rev; + + if (!kms) { + DPU_ERROR("invalid kms\n"); + return rc; + } + + dpu_kms = to_dpu_kms(kms); + dev = dpu_kms->dev; + + dev->mode_config.cursor_width = 512; + dev->mode_config.cursor_height = 512; + + rc = dpu_kms_global_obj_init(dpu_kms); + if (rc) + return rc; + + atomic_set(&dpu_kms->bandwidth_ref, 0); + + if (of_device_is_compatible(dpu_kms->pdev->dev.of_node, "qcom,mdp5")) + rc = dpu_kms_mmap_mdp5(dpu_kms); + else + rc = dpu_kms_mmap_dpu(dpu_kms); + if (rc) + return rc; + dpu_kms_parse_data_bus_icc_path(dpu_kms); rc = pm_runtime_resume_and_get(&dpu_kms->pdev->dev); diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 02fd6c7d0bb7..fdcbb02fa396 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -485,6 +485,9 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name); void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name, phys_addr_t *size); void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name); +void __iomem *msm_ioremap_mdss(struct platform_device *mdss_pdev, + struct platform_device *dev, + const char *name); struct icc_path *msm_icc_get(struct device *dev, const char *name); diff --git a/drivers/gpu/drm/msm/msm_io_utils.c b/drivers/gpu/drm/msm/msm_io_utils.c index 59d2788c4510..9d0d76f3a319 100644 --- a/drivers/gpu/drm/msm/msm_io_utils.c +++ b/drivers/gpu/drm/msm/msm_io_utils.c @@ -50,6 +50,24 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name) return clk; } +void __iomem *msm_ioremap_mdss(struct platform_device *mdss_pdev, + struct platform_device *pdev, + const char *name) +{ + struct resource *res; + void __iomem *ptr; + + res = platform_get_resource_byname(mdss_pdev, IORESOURCE_MEM, name); + if (!res) + return ERR_PTR(-EINVAL); + + ptr = devm_ioremap_resource(&pdev->dev, res); + if (!ptr) + return ERR_PTR(-ENOMEM); + + return ptr; +} + static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name, bool quiet, phys_addr_t *psize) {