From patchwork Wed Jan 19 22:16:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 533296 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 7B3C9C4332F for ; Wed, 19 Jan 2022 22:16:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357533AbiASWQW (ORCPT ); Wed, 19 Jan 2022 17:16:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236635AbiASWQW (ORCPT ); Wed, 19 Jan 2022 17:16:22 -0500 Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7756CC061574 for ; Wed, 19 Jan 2022 14:16:21 -0800 (PST) Received: by mail-lf1-x131.google.com with SMTP id m1so14004114lfq.4 for ; Wed, 19 Jan 2022 14:16:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=eE3eLDkLSDr3IcisRnnoGtT+2vI968ldeunU/IFbtCA=; b=C+ub5TjynfzcWJf2eJeS2+fKyAFywN1NbOp3MXh8gIXS4BtCr24boiP9lUhV08PnZX KbYqslGwdZ1ZAUmgMgZmqz08BaTaaXGpIO0/ErHNFs8yOvpLVt2pdqsP/Xm0unBD1D4J r1AEWih92UYNGoWWkHoqM7kgVoFhTNvIUjHuv+WGomRIb5Op95FUWSOi6zjds2oTdYo3 H600A2zVxIcxaPo2U3UDEf4FhCiCRJE2QDqiYHrs24JOBMD1j9Ho4yNSyLOK+hgYReXK fTFbidaaMHw6Hcs3P7ltXfJIgmhLeDR8ZOcXOJhdh+mWQ5vdizEWA4cOYPexpUxp3ecO /Ycg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eE3eLDkLSDr3IcisRnnoGtT+2vI968ldeunU/IFbtCA=; b=XGPAzBuHIKCrCtSdRMZp7aE2J6ilfYfZCbNGeCGrMdDvbgbMLa2GcC2t7+NvXVoABv 15fCKClFJqI0TVPyziWQhA0l6bdhvCM55KZe9Lc3vx/RERliy1fQZw2vvBxHF5BJt1b3 zwNm02uQyGM8GEMclYQjMockXunsRl+RbKx0PFQ5H0t9bnFBpo1h+rrZG89jQsjacRZi gGkLj7o6bJMq79YDmZ3Y8t35yRHB1LNFZTppzeJ039vngz7VgAm3nzSOdNBESwzNBEBo Dn4vj/njD0p75Yk4gZso9GZ10OHtSZS5JjrbBgnHwGTCrvmC2+DRthph9LqhnmhHuZ69 7Cow== X-Gm-Message-State: AOAM530r12YB6bhLyjmDzZ/MD1tGrih7kSR74ZlGcSA4UlMDU8+nMtG9 2WKikTmOYXJFTHPrHWQazbHs/A== X-Google-Smtp-Source: ABdhPJy/WQiKXiup7Z1C8vlTCd4hpxtWmPGE+8ME9k8+V7KfK11auOa9p4HW2TqZpKE+sPQDWdEPBw== X-Received: by 2002:a05:6512:3ba1:: with SMTP id g33mr28787357lfv.166.1642630579600; Wed, 19 Jan 2022 14:16:19 -0800 (PST) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id b11sm89053lfb.277.2022.01.19.14.16.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jan 2022 14:16:19 -0800 (PST) From: Dmitry Baryshkov To: Bjorn Andersson , Rob Clark , Sean Paul , Abhinav Kumar Cc: Stephen Boyd , David Airlie , Daniel Vetter , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH v3 2/3] drm/msm/dpu: simplify clocks handling Date: Thu, 20 Jan 2022 01:16:15 +0300 Message-Id: <20220119221616.3089119-3-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220119221616.3089119-1-dmitry.baryshkov@linaro.org> References: <20220119221616.3089119-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org DPU driver contains code to parse clock items from device tree into special data struct and then enable/disable/set rate for the clocks using that data struct. However the DPU driver itself uses only parsing and enabling/disabling part (the rate setting is used by DP driver). Move this implementation to the DP driver (which actually uses rate setting) and replace hand-coded enable/disable/get loops in the DPU with the respective clk_bulk operations. Put operation is removed completely because, it is handled using devres instead. DP implementation is unchanged for now. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/Makefile | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 24 ++----- drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h | 6 +- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 46 +++---------- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 26 +++---- .../dpu1/dpu_io_util.c => dp/dp_clk_util.c} | 69 +------------------ .../dpu1/dpu_io_util.h => dp/dp_clk_util.h} | 8 +-- drivers/gpu/drm/msm/dp/dp_parser.h | 2 +- drivers/gpu/drm/msm/msm_drv.c | 1 + drivers/gpu/drm/msm/msm_drv.h | 1 + drivers/gpu/drm/msm/msm_io_utils.c | 50 ++++++++++++++ 12 files changed, 89 insertions(+), 150 deletions(-) rename drivers/gpu/drm/msm/{disp/dpu1/dpu_io_util.c => dp/dp_clk_util.c} (61%) rename drivers/gpu/drm/msm/{disp/dpu1/dpu_io_util.h => dp/dp_clk_util.h} (85%) diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile index 5b6e37477079..e9cc7d8ac301 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -66,7 +66,6 @@ msm-y := \ disp/dpu1/dpu_hw_top.o \ disp/dpu1/dpu_hw_util.o \ disp/dpu1/dpu_hw_vbif.o \ - disp/dpu1/dpu_io_util.o \ disp/dpu1/dpu_kms.o \ disp/dpu1/dpu_mdss.o \ disp/dpu1/dpu_plane.o \ @@ -103,6 +102,7 @@ msm-$(CONFIG_DRM_MSM_GPU_STATE) += adreno/a6xx_gpu_state.o msm-$(CONFIG_DRM_MSM_DP)+= dp/dp_aux.o \ dp/dp_catalog.o \ + dp/dp_clk_util.o \ dp/dp_ctrl.o \ dp/dp_display.o \ dp/dp_drm.o \ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c index 60fe06018581..4d184122d63e 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c @@ -284,17 +284,6 @@ void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc) } } -static int _dpu_core_perf_set_core_clk_rate(struct dpu_kms *kms, u64 rate) -{ - struct dss_clk *core_clk = kms->perf.core_clk; - - if (core_clk->max_rate && (rate > core_clk->max_rate)) - rate = core_clk->max_rate; - - core_clk->rate = rate; - return dev_pm_opp_set_rate(&kms->pdev->dev, core_clk->rate); -} - static u64 _dpu_core_perf_get_core_clk_rate(struct dpu_kms *kms) { u64 clk_rate = kms->perf.perf_tune.min_core_clk; @@ -306,7 +295,7 @@ static u64 _dpu_core_perf_get_core_clk_rate(struct dpu_kms *kms) dpu_cstate = to_dpu_crtc_state(crtc->state); clk_rate = max(dpu_cstate->new_perf.core_clk_rate, clk_rate); - clk_rate = clk_round_rate(kms->perf.core_clk->clk, + clk_rate = clk_round_rate(kms->perf.core_clk, clk_rate); } } @@ -405,10 +394,11 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc, trace_dpu_core_perf_update_clk(kms->dev, stop_req, clk_rate); - ret = _dpu_core_perf_set_core_clk_rate(kms, clk_rate); + if (clk_rate > kms->perf.max_core_clk_rate) + clk_rate = kms->perf.max_core_clk_rate; + ret = dev_pm_opp_set_rate(&kms->pdev->dev, clk_rate); if (ret) { - DPU_ERROR("failed to set %s clock rate %llu\n", - kms->perf.core_clk->clk_name, clk_rate); + DPU_ERROR("failed to set core clock rate %llu\n", clk_rate); return ret; } @@ -529,13 +519,13 @@ void dpu_core_perf_destroy(struct dpu_core_perf *perf) int dpu_core_perf_init(struct dpu_core_perf *perf, struct drm_device *dev, struct dpu_mdss_cfg *catalog, - struct dss_clk *core_clk) + struct clk *core_clk) { perf->dev = dev; perf->catalog = catalog; perf->core_clk = core_clk; - perf->max_core_clk_rate = core_clk->max_rate; + perf->max_core_clk_rate = clk_get_rate(core_clk); if (!perf->max_core_clk_rate) { DPU_DEBUG("optional max core clk rate, use default\n"); perf->max_core_clk_rate = DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h index cf4b9b5964c6..8dfcc6db7176 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h @@ -56,7 +56,7 @@ struct dpu_core_perf_tune { * @dev: Pointer to drm device * @debugfs_root: top level debug folder * @catalog: Pointer to catalog configuration - * @core_clk: Pointer to core clock structure + * @core_clk: Pointer to the core clock * @core_clk_rate: current core clock rate * @max_core_clk_rate: maximum allowable core clock rate * @perf_tune: debug control for performance tuning @@ -69,7 +69,7 @@ struct dpu_core_perf { struct drm_device *dev; struct dentry *debugfs_root; struct dpu_mdss_cfg *catalog; - struct dss_clk *core_clk; + struct clk *core_clk; u64 core_clk_rate; u64 max_core_clk_rate; struct dpu_core_perf_tune perf_tune; @@ -120,7 +120,7 @@ void dpu_core_perf_destroy(struct dpu_core_perf *perf); int dpu_core_perf_init(struct dpu_core_perf *perf, struct drm_device *dev, struct dpu_mdss_cfg *catalog, - struct dss_clk *core_clk); + struct clk *core_clk); struct dpu_kms; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 201c0e3082dd..a46aa36bc5db 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -998,29 +998,15 @@ static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms) return 0; } -static struct dss_clk *_dpu_kms_get_clk(struct dpu_kms *dpu_kms, - char *clock_name) -{ - struct dss_module_power *mp = &dpu_kms->mp; - int i; - - for (i = 0; i < mp->num_clk; i++) { - if (!strcmp(mp->clk_config[i].clk_name, clock_name)) - return &mp->clk_config[i]; - } - - return NULL; -} - u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) { - struct dss_clk *clk; + struct clk *clk; - clk = _dpu_kms_get_clk(dpu_kms, clock_name); + clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name); if (!clk) return -EINVAL; - return clk_get_rate(clk->clk); + return clk_get_rate(clk); } static int dpu_kms_hw_init(struct msm_kms *kms) @@ -1132,7 +1118,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms) } rc = dpu_core_perf_init(&dpu_kms->perf, dev, dpu_kms->catalog, - _dpu_kms_get_clk(dpu_kms, "core")); + msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, "core")); if (rc) { DPU_ERROR("failed to init perf %d\n", rc); goto perf_err; @@ -1219,7 +1205,6 @@ static int dpu_bind(struct device *dev, struct device *master, void *data) struct platform_device *pdev = to_platform_device(dev); struct drm_device *ddev = priv->dev; struct dpu_kms *dpu_kms; - struct dss_module_power *mp; int ret = 0; dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL); @@ -1236,12 +1221,12 @@ static int dpu_bind(struct device *dev, struct device *master, void *data) return ret; } - mp = &dpu_kms->mp; - ret = msm_dss_parse_clock(pdev, mp); - if (ret) { + ret = msm_parse_clock(pdev, &dpu_kms->clocks); + if (ret < 0) { DPU_ERROR("failed to parse clocks, ret=%d\n", ret); return ret; } + dpu_kms->num_clocks = ret; platform_set_drvdata(pdev, dpu_kms); @@ -1265,11 +1250,6 @@ static void dpu_unbind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); struct dpu_kms *dpu_kms = platform_get_drvdata(pdev); - struct dss_module_power *mp = &dpu_kms->mp; - - msm_dss_put_clk(mp->clk_config, mp->num_clk); - devm_kfree(&pdev->dev, mp->clk_config); - mp->num_clk = 0; if (dpu_kms->rpm_enabled) pm_runtime_disable(&pdev->dev); @@ -1293,21 +1273,18 @@ static int dpu_dev_remove(struct platform_device *pdev) static int __maybe_unused dpu_runtime_suspend(struct device *dev) { - int i, rc = -1; + int i; struct platform_device *pdev = to_platform_device(dev); struct dpu_kms *dpu_kms = platform_get_drvdata(pdev); - struct dss_module_power *mp = &dpu_kms->mp; /* Drop the performance state vote */ dev_pm_opp_set_rate(dev, 0); - rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false); - if (rc) - DPU_ERROR("clock disable failed rc:%d\n", rc); + clk_bulk_disable_unprepare(dpu_kms->num_clocks, dpu_kms->clocks); for (i = 0; i < dpu_kms->num_paths; i++) icc_set_bw(dpu_kms->path[i], 0, 0); - return rc; + return 0; } static int __maybe_unused dpu_runtime_resume(struct device *dev) @@ -1317,7 +1294,6 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev) struct dpu_kms *dpu_kms = platform_get_drvdata(pdev); struct drm_encoder *encoder; struct drm_device *ddev; - struct dss_module_power *mp = &dpu_kms->mp; int i; ddev = dpu_kms->dev; @@ -1327,7 +1303,7 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev) for (i = 0; i < dpu_kms->num_paths; i++) icc_set_bw(dpu_kms->path[i], 0, Bps_to_icc(MIN_IB_BW)); - rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true); + rc = clk_bulk_prepare_enable(dpu_kms->num_clocks, dpu_kms->clocks); if (rc) { DPU_ERROR("clock enable failed rc:%d\n", rc); return rc; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index 2d385b4b7f5e..5f562413bb63 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -21,7 +21,6 @@ #include "dpu_hw_lm.h" #include "dpu_hw_interrupts.h" #include "dpu_hw_top.h" -#include "dpu_io_util.h" #include "dpu_rm.h" #include "dpu_core_perf.h" @@ -113,7 +112,8 @@ struct dpu_kms { struct platform_device *pdev; bool rpm_enabled; - struct dss_module_power mp; + struct clk_bulk_data *clocks; + int num_clocks; /* reference count bandwidth requests, so we know when we can * release bandwidth. Each atomic update increments, and frame- diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c index 5bdb1504035c..9f5cc7f9e9a9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c @@ -29,7 +29,8 @@ struct dpu_irq_controller { struct dpu_mdss { struct msm_mdss base; void __iomem *mmio; - struct dss_module_power mp; + struct clk_bulk_data *clocks; + int num_clocks; struct dpu_irq_controller irq_controller; }; @@ -136,10 +137,9 @@ static void _dpu_mdss_irq_domain_fini(struct dpu_mdss *dpu_mdss) static int dpu_mdss_enable(struct msm_mdss *mdss) { struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss); - struct dss_module_power *mp = &dpu_mdss->mp; int ret; - ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true); + ret = clk_bulk_prepare_enable(dpu_mdss->num_clocks, dpu_mdss->clocks); if (ret) { DPU_ERROR("clock enable failed, ret:%d\n", ret); return ret; @@ -174,21 +174,16 @@ static int dpu_mdss_enable(struct msm_mdss *mdss) static int dpu_mdss_disable(struct msm_mdss *mdss) { struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss); - struct dss_module_power *mp = &dpu_mdss->mp; - int ret; - ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false); - if (ret) - DPU_ERROR("clock disable failed, ret:%d\n", ret); + clk_bulk_disable_unprepare(dpu_mdss->num_clocks, dpu_mdss->clocks); - return ret; + return 0; } static void dpu_mdss_destroy(struct msm_mdss *mdss) { struct platform_device *pdev = to_platform_device(mdss->dev); struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss); - struct dss_module_power *mp = &dpu_mdss->mp; int irq; pm_runtime_suspend(mdss->dev); @@ -196,8 +191,6 @@ static void dpu_mdss_destroy(struct msm_mdss *mdss) _dpu_mdss_irq_domain_fini(dpu_mdss); irq = platform_get_irq(pdev, 0); irq_set_chained_handler_and_data(irq, NULL, NULL); - msm_dss_put_clk(mp->clk_config, mp->num_clk); - devm_kfree(&pdev->dev, mp->clk_config); if (dpu_mdss->mmio) devm_iounmap(&pdev->dev, dpu_mdss->mmio); @@ -214,7 +207,6 @@ int dpu_mdss_init(struct platform_device *pdev) { struct msm_drm_private *priv = platform_get_drvdata(pdev); struct dpu_mdss *dpu_mdss; - struct dss_module_power *mp; int ret; int irq; @@ -228,12 +220,12 @@ int dpu_mdss_init(struct platform_device *pdev) DRM_DEBUG("mapped mdss address space @%pK\n", dpu_mdss->mmio); - mp = &dpu_mdss->mp; - ret = msm_dss_parse_clock(pdev, mp); - if (ret) { + ret = msm_parse_clock(pdev, &dpu_mdss->clocks); + if (ret < 0) { DPU_ERROR("failed to parse clocks, ret=%d\n", ret); goto clk_parse_err; } + dpu_mdss->num_clocks = ret; dpu_mdss->base.dev = &pdev->dev; dpu_mdss->base.funcs = &mdss_funcs; @@ -260,9 +252,7 @@ int dpu_mdss_init(struct platform_device *pdev) irq_error: _dpu_mdss_irq_domain_fini(dpu_mdss); irq_domain_error: - msm_dss_put_clk(mp->clk_config, mp->num_clk); clk_parse_err: - devm_kfree(&pdev->dev, mp->clk_config); if (dpu_mdss->mmio) devm_iounmap(&pdev->dev, dpu_mdss->mmio); dpu_mdss->mmio = NULL; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c b/drivers/gpu/drm/msm/dp/dp_clk_util.c similarity index 61% rename from drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c rename to drivers/gpu/drm/msm/dp/dp_clk_util.c index 078afc5f5882..44a4fc59ff31 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c +++ b/drivers/gpu/drm/msm/dp/dp_clk_util.c @@ -11,7 +11,7 @@ #include -#include "dpu_io_util.h" +#include "dp_clk_util.h" void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk) { @@ -118,70 +118,3 @@ int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable) return rc; } - -int msm_dss_parse_clock(struct platform_device *pdev, - struct dss_module_power *mp) -{ - u32 i, rc = 0; - const char *clock_name; - int num_clk = 0; - - if (!pdev || !mp) - return -EINVAL; - - mp->num_clk = 0; - num_clk = of_property_count_strings(pdev->dev.of_node, "clock-names"); - if (num_clk <= 0) { - pr_debug("clocks are not defined\n"); - return 0; - } - - mp->clk_config = devm_kcalloc(&pdev->dev, - num_clk, sizeof(struct dss_clk), - GFP_KERNEL); - if (!mp->clk_config) - return -ENOMEM; - - for (i = 0; i < num_clk; i++) { - rc = of_property_read_string_index(pdev->dev.of_node, - "clock-names", i, - &clock_name); - if (rc) { - DRM_DEV_ERROR(&pdev->dev, "Failed to get clock name for %d\n", - i); - break; - } - strlcpy(mp->clk_config[i].clk_name, clock_name, - sizeof(mp->clk_config[i].clk_name)); - - mp->clk_config[i].type = DSS_CLK_AHB; - } - - rc = msm_dss_get_clk(&pdev->dev, mp->clk_config, num_clk); - if (rc) { - DRM_DEV_ERROR(&pdev->dev, "Failed to get clock refs %d\n", rc); - goto err; - } - - rc = of_clk_set_defaults(pdev->dev.of_node, false); - if (rc) { - DRM_DEV_ERROR(&pdev->dev, "Failed to set clock defaults %d\n", rc); - goto err; - } - - for (i = 0; i < num_clk; i++) { - u32 rate = clk_get_rate(mp->clk_config[i].clk); - if (!rate) - continue; - mp->clk_config[i].rate = rate; - mp->clk_config[i].type = DSS_CLK_PCLK; - mp->clk_config[i].max_rate = rate; - } - - mp->num_clk = num_clk; - return 0; - -err: - msm_dss_put_clk(mp->clk_config, num_clk); - return rc; -} diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h b/drivers/gpu/drm/msm/dp/dp_clk_util.h similarity index 85% rename from drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h rename to drivers/gpu/drm/msm/dp/dp_clk_util.h index e6b5c772fa3b..067bf87f3d97 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h +++ b/drivers/gpu/drm/msm/dp/dp_clk_util.h @@ -2,8 +2,8 @@ /* Copyright (c) 2012, 2017-2018, The Linux Foundation. All rights reserved. */ -#ifndef __DPU_IO_UTIL_H__ -#define __DPU_IO_UTIL_H__ +#ifndef __DP_CLK_UTIL_H__ +#define __DP_CLK_UTIL_H__ #include #include @@ -35,6 +35,4 @@ int msm_dss_get_clk(struct device *dev, struct dss_clk *clk_arry, int num_clk); void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk); int msm_dss_clk_set_rate(struct dss_clk *clk_arry, int num_clk); int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable); -int msm_dss_parse_clock(struct platform_device *pdev, - struct dss_module_power *mp); -#endif /* __DPU_IO_UTIL_H__ */ +#endif /* __DP_CLK_UTIL_H__ */ diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h b/drivers/gpu/drm/msm/dp/dp_parser.h index 3172da089421..094b39bfed8c 100644 --- a/drivers/gpu/drm/msm/dp/dp_parser.h +++ b/drivers/gpu/drm/msm/dp/dp_parser.h @@ -10,7 +10,7 @@ #include #include -#include "dpu_io_util.h" +#include "dp_clk_util.h" #include "msm_drv.h" #define DP_LABEL "MDSS DP DISPLAY" diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 30c44c395a24..ba0aae367f91 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -5,6 +5,7 @@ * Author: Rob Clark */ +#include #include #include #include diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 3ab19775a5c3..06d26c5fb274 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -480,6 +480,7 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name); struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count, const char *name); +int msm_parse_clock(struct platform_device *pdev, struct clk_bulk_data **clocks); 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); diff --git a/drivers/gpu/drm/msm/msm_io_utils.c b/drivers/gpu/drm/msm/msm_io_utils.c index 7b504617833a..5533c87c7158 100644 --- a/drivers/gpu/drm/msm/msm_io_utils.c +++ b/drivers/gpu/drm/msm/msm_io_utils.c @@ -5,6 +5,8 @@ * Author: Rob Clark */ +#include + #include "msm_drv.h" /* @@ -47,6 +49,54 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name) return clk; } +int msm_parse_clock(struct platform_device *pdev, struct clk_bulk_data **clocks) +{ + u32 i, rc = 0; + const char *clock_name; + struct clk_bulk_data *bulk; + int num_clk = 0; + + if (!pdev) + return -EINVAL; + + num_clk = of_property_count_strings(pdev->dev.of_node, "clock-names"); + if (num_clk <= 0) { + pr_debug("clocks are not defined\n"); + return 0; + } + + bulk = devm_kcalloc(&pdev->dev, num_clk, sizeof(struct clk_bulk_data), GFP_KERNEL); + if (!bulk) + return -ENOMEM; + + for (i = 0; i < num_clk; i++) { + rc = of_property_read_string_index(pdev->dev.of_node, + "clock-names", i, + &clock_name); + if (rc) { + DRM_DEV_ERROR(&pdev->dev, "Failed to get clock name for %d\n", i); + return rc; + } + bulk[i].id = devm_kstrdup(&pdev->dev, clock_name, GFP_KERNEL); + } + + rc = devm_clk_bulk_get(&pdev->dev, num_clk, bulk); + if (rc) { + DRM_DEV_ERROR(&pdev->dev, "Failed to get clock refs %d\n", rc); + return rc; + } + + rc = of_clk_set_defaults(pdev->dev.of_node, false); + if (rc) { + DRM_DEV_ERROR(&pdev->dev, "Failed to set clock defaults %d\n", rc); + return rc; + } + + *clocks = bulk; + + return num_clk; +} + static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name, bool quiet, phys_addr_t *psize) {