From patchwork Fri Aug 28 06:07:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 250508 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9ADA7C433E2 for ; Fri, 28 Aug 2020 06:08:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7618420791 for ; Fri, 28 Aug 2020 06:08:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="O/ulWoot" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728273AbgH1GI2 (ORCPT ); Fri, 28 Aug 2020 02:08:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728086AbgH1GIZ (ORCPT ); Fri, 28 Aug 2020 02:08:25 -0400 Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83EF8C061234 for ; Thu, 27 Aug 2020 23:08:24 -0700 (PDT) Received: by mail-pj1-x1043.google.com with SMTP id ls14so51617pjb.3 for ; Thu, 27 Aug 2020 23:08:24 -0700 (PDT) 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=xHZeI2yfFEkpCkFHmLsd7DtKmS2VipSIn1WAzrLDQFE=; b=O/ulWoothsxdPQ97xUPAUF8mGcsHgg0SyY1cIBhktJYelPiAMSEkxkz/j33wP2C+Lq vbXrtKofh2FKpOGyRQmm9D9Cts2zfKI9qst0d9eDfHoZ3ARRHSvM47r89aGu9oRT4QRx 64B9170HVrKF8kOJiV8NrDLdPSDI+gRjG8N/bKQf1V4TBIvWLY4xg0MnamDt8rVICGLN +rVhKfjcmjNJLx5WZl1n4E3tCbSCFY8qbEsEdPo5WpqxCs65T6GdDqBj3pNNyznWONvZ OQxut+bgVRDcKCXc3uvfKhbN4aNZbQMFIJwee77qFz0Pv6LUakfOtGZrFOlIPhb0T4XB zK5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xHZeI2yfFEkpCkFHmLsd7DtKmS2VipSIn1WAzrLDQFE=; b=ZVNNM5tQf46LER20ZVp/rjM0+u3rqWnkJpA20uDB+UUpK+IUjJChiDcMTUQgDgoDUJ PWxhYqG6ciMUHG9rjNFvvJBuPodXAT3wBBCXHg1kp4HY565wNIkImPizpPBu0NWKMh+d qHb+PCW32snM9jPC5yzMxhsxp6YiEeH3eJGVX4KAshOZYkm1UpO22gFRbljQOFCJOQ0Z 9zlyV5CHJ+5t6/e18abx2VNM5tai/+RRu724ONlHQU7GhUjaTVHRuEbZX7b2TKcQHlA3 c0QKys9FXSGNES/Vm/hmkn2o4LB0koeLt6eEitKFWlvZ7TFIMFEb4k5YjAJEmE+WHZwW Z2SQ== X-Gm-Message-State: AOAM5321Yy80Zd27we0an7Sfu5nS41GmoTKnW1rd9fw94J21/OJ9v/aH q29/aTQ3MptYIgSyDmQAL9S19A== X-Google-Smtp-Source: ABdhPJzUn/yAsux1BzGUFFYk5nk+3HRDii55+GgvRQzXYUbbXQKWlcl/DTr9MzJvuF556xdk7KaYkg== X-Received: by 2002:a17:90a:1e65:: with SMTP id w92mr262778pjw.187.1598594903805; Thu, 27 Aug 2020 23:08:23 -0700 (PDT) Received: from localhost ([122.167.135.199]) by smtp.gmail.com with ESMTPSA id e65sm96904pjk.45.2020.08.27.23.08.22 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Aug 2020 23:08:23 -0700 (PDT) From: Viresh Kumar To: rnayak@codeaurora.org, Rob Clark , Sean Paul Cc: Viresh Kumar , linux-pm@vger.kernel.org, Vincent Guittot , Rafael Wysocki , Stephen Boyd , Nishanth Menon , Douglas Anderson , Naresh Kamboju , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH V2 3/8] drm/msm: Unconditionally call dev_pm_opp_of_remove_table() Date: Fri, 28 Aug 2020 11:37:48 +0530 Message-Id: <6e4110032f8711e8bb0acbeccfe66dec3b09d5c1.1598594714.git.viresh.kumar@linaro.org> X-Mailer: git-send-email 2.25.0.rc1.19.g042ed3e048af In-Reply-To: References: MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org dev_pm_opp_of_remove_table() doesn't report any errors when it fails to find the OPP table with error -ENODEV (i.e. OPP table not present for the device). And we can call dev_pm_opp_of_remove_table() unconditionally here. While at it, also create a label to put clkname. Signed-off-by: Viresh Kumar --- V2: - Compare with -ENODEV only for failures. - Create new label to put clkname. --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 14 +++++--------- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 - drivers/gpu/drm/msm/dsi/dsi_host.c | 8 ++------ 3 files changed, 7 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index c0a4d4e16d82..c8287191951f 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1010,12 +1010,9 @@ static int dpu_bind(struct device *dev, struct device *master, void *data) return PTR_ERR(dpu_kms->opp_table); /* OPP table is optional */ ret = dev_pm_opp_of_add_table(dev); - if (!ret) { - dpu_kms->has_opp_table = true; - } else if (ret != -ENODEV) { + if (ret && ret != -ENODEV) { dev_err(dev, "invalid OPP table in device tree\n"); - dev_pm_opp_put_clkname(dpu_kms->opp_table); - return ret; + goto put_clkname; } mp = &dpu_kms->mp; @@ -1037,8 +1034,8 @@ static int dpu_bind(struct device *dev, struct device *master, void *data) priv->kms = &dpu_kms->base; return ret; err: - if (dpu_kms->has_opp_table) - dev_pm_opp_of_remove_table(dev); + dev_pm_opp_of_remove_table(dev); +put_clkname: dev_pm_opp_put_clkname(dpu_kms->opp_table); return ret; } @@ -1056,8 +1053,7 @@ static void dpu_unbind(struct device *dev, struct device *master, void *data) if (dpu_kms->rpm_enabled) pm_runtime_disable(&pdev->dev); - if (dpu_kms->has_opp_table) - dev_pm_opp_of_remove_table(dev); + dev_pm_opp_of_remove_table(dev); dev_pm_opp_put_clkname(dpu_kms->opp_table); } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index e140cd633071..8295979a7165 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -129,7 +129,6 @@ struct dpu_kms { bool rpm_enabled; struct opp_table *opp_table; - bool has_opp_table; struct dss_module_power mp; diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index b17ac6c27554..4335fe33250c 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -113,7 +113,6 @@ struct msm_dsi_host { struct clk *byte_intf_clk; struct opp_table *opp_table; - bool has_opp_table; u32 byte_clk_rate; u32 pixel_clk_rate; @@ -1891,9 +1890,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi) return PTR_ERR(msm_host->opp_table); /* OPP table is optional */ ret = dev_pm_opp_of_add_table(&pdev->dev); - if (!ret) { - msm_host->has_opp_table = true; - } else if (ret != -ENODEV) { + if (ret && ret != -ENODEV) { dev_err(&pdev->dev, "invalid OPP table in device tree\n"); dev_pm_opp_put_clkname(msm_host->opp_table); return ret; @@ -1934,8 +1931,7 @@ void msm_dsi_host_destroy(struct mipi_dsi_host *host) mutex_destroy(&msm_host->cmd_mutex); mutex_destroy(&msm_host->dev_mutex); - if (msm_host->has_opp_table) - dev_pm_opp_of_remove_table(&msm_host->pdev->dev); + dev_pm_opp_of_remove_table(&msm_host->pdev->dev); dev_pm_opp_put_clkname(msm_host->opp_table); pm_runtime_disable(&msm_host->pdev->dev); }