From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 25122C433E3 for ; Wed, 19 Aug 2020 18:59:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 029A3208E4 for ; Wed, 19 Aug 2020 18:59:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NBcnrI+I" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726854AbgHSS7P (ORCPT ); Wed, 19 Aug 2020 14:59:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725804AbgHSS7M (ORCPT ); Wed, 19 Aug 2020 14:59:12 -0400 Received: from mail-pf1-x441.google.com (mail-pf1-x441.google.com [IPv6:2607:f8b0:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8A6DC061757; Wed, 19 Aug 2020 11:59:11 -0700 (PDT) Received: by mail-pf1-x441.google.com with SMTP id u20so12153645pfn.0; Wed, 19 Aug 2020 11:59:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=EueH97o6VIVtEIiLMj1CkjU5GKTUR/PQiOa7YU1wTr0=; b=NBcnrI+ILjh3jELjrGG+qDgvlGLTfpZWaAD8dfjOYKDeId+yC5B/nedpjjEDPs7MJt ibC4avtU4xcpmoE5ULoOcJAmmYq4qNB7MUEmgYPubcHq2yGCcKTDG+yTvrs6xY1+duLn MJoV/YDWfMQJJ8xM1MvvfzlICMUDpBWEKZyOkmSI0S6rGlGxJwU4BMhwzeeaBJLpAhWn Y/q7sMI+06WGFnSR1Jku2olJy2n4ROcztnPEXC78DSlVZPg1TDbD1jchPUnoa6BdHZR+ S0WZ/lmNZ5AcpUf6QP4Im7SBijhLCA2/2VprKYFChPl+VrA5wp86Ko3I6BpmT9eL2O6M kGqA== 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=EueH97o6VIVtEIiLMj1CkjU5GKTUR/PQiOa7YU1wTr0=; b=Mt3dr8zvL2rmIxofgRZbDf1Y+1vWuEjUYXYL2Y/HjHH4GXBe7nz2IGt3cynJ7uPTOX UKIzLPwEGvAXV36okEbwVRAOTG7STVK/re1G0qJttH7tQoO5UtuKbEs/hlS3d2EsKUXN TvaInNTxO4Ez5Mjvqhu93BjNtTH4luxjTppLT+67LebCf05PFQGkJ/1GGQG8umSKMV7r 707CefXc88IeRQ9bEgvQMhutk8t6sgGs7peEjfif82JIJM0ZfljccxyCdEmcQDGfC/zU QRpNP5IF7iox7Qu/3igjPRdA8346EgGY4YrgblvMLaEo9cyqFt26L3YUrX5+gKumOTeD CmJA== X-Gm-Message-State: AOAM530qhUK3eLbFtj00RFeXMzcVN2Na5Pu78D5trr03KpL7CUUFXTNF y+/BiGOsjvMFjy6yGd4liNk= X-Google-Smtp-Source: ABdhPJzycF9YEJOQ5XOCi+2XKILR/b07UiFGPGDk2y6A/OtI9ObJBJksHh+9i+w9mHTz6yRi1btLzQ== X-Received: by 2002:a63:de4e:: with SMTP id y14mr18144996pgi.106.1597863551453; Wed, 19 Aug 2020 11:59:11 -0700 (PDT) Received: from varodek.iballbatonwifi.com ([103.105.152.86]) by smtp.gmail.com with ESMTPSA id o134sm29149305pfg.200.2020.08.19.11.59.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Aug 2020 11:59:11 -0700 (PDT) From: Vaibhav Gupta To: Bjorn Helgaas , Bjorn Helgaas , Bjorn Helgaas , Vaibhav Gupta , Bartlomiej Zolnierkiewicz , Sam Ravnborg , Paul Mackerras , Russell King , Andres Salomon , Antonino Daplas Cc: Vaibhav Gupta , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-geode@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Shuah Khan Subject: [PATCH v3 02/12] fbdev: lxfb: use generic power management Date: Thu, 20 Aug 2020 00:26:44 +0530 Message-Id: <20200819185654.151170-3-vaibhavgupta40@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200819185654.151170-1-vaibhavgupta40@gmail.com> References: <20200819185654.151170-1-vaibhavgupta40@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Switch to the new generic framework by updating function signatures and define a "struct dev_pm_ops" variable to bind PM callbacks. This way we can remove the legacy .suspend & .resume bindings from "lxfb_driver". The lxfb_suspend() is designed to function only in the case of Suspend. Thus, the code was kept inside "if (state.event == PM_EVENT_SUSPEND)" container. This is because, in the legacy framework, this callback was invoked even in the event of Freeze and Hibernate. Hence, added the load of unnecessary function-calls. The goal can be achieved by binding the callback with only "lxfb_pm_ops.suspend" in the new framework. This also avoids the step of checking "if (state.event == PM_EVENT_SUSPEND)" every time the callback is invoked. Signed-off-by: Vaibhav Gupta --- drivers/video/fbdev/geode/lxfb.h | 5 ---- drivers/video/fbdev/geode/lxfb_core.c | 37 +++++++++++++++------------ drivers/video/fbdev/geode/lxfb_ops.c | 4 --- 3 files changed, 20 insertions(+), 26 deletions(-) diff --git a/drivers/video/fbdev/geode/lxfb.h b/drivers/video/fbdev/geode/lxfb.h index ef24bf6d49dc..d37b32dbcd68 100644 --- a/drivers/video/fbdev/geode/lxfb.h +++ b/drivers/video/fbdev/geode/lxfb.h @@ -29,7 +29,6 @@ struct lxfb_par { void __iomem *gp_regs; void __iomem *dc_regs; void __iomem *vp_regs; -#ifdef CONFIG_PM int powered_down; /* register state, for power mgmt functionality */ @@ -50,7 +49,6 @@ struct lxfb_par { uint32_t hcoeff[DC_HFILT_COUNT * 2]; uint32_t vcoeff[DC_VFILT_COUNT]; uint32_t vp_coeff[VP_COEFF_SIZE / 4]; -#endif }; static inline unsigned int lx_get_pitch(unsigned int xres, int bpp) @@ -64,11 +62,8 @@ int lx_blank_display(struct fb_info *, int); void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int, unsigned int, unsigned int); -#ifdef CONFIG_PM int lx_powerdown(struct fb_info *info); int lx_powerup(struct fb_info *info); -#endif - /* Graphics Processor registers (table 6-29 from the data book) */ enum gp_registers { diff --git a/drivers/video/fbdev/geode/lxfb_core.c b/drivers/video/fbdev/geode/lxfb_core.c index adc2d9c2395e..66c81262d18f 100644 --- a/drivers/video/fbdev/geode/lxfb_core.c +++ b/drivers/video/fbdev/geode/lxfb_core.c @@ -443,17 +443,14 @@ static struct fb_info *lxfb_init_fbinfo(struct device *dev) return info; } -#ifdef CONFIG_PM -static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) +static int __maybe_unused lxfb_suspend(struct device *dev) { - struct fb_info *info = pci_get_drvdata(pdev); + struct fb_info *info = dev_get_drvdata(dev); - if (state.event == PM_EVENT_SUSPEND) { - console_lock(); - lx_powerdown(info); - fb_set_suspend(info, 1); - console_unlock(); - } + console_lock(); + lx_powerdown(info); + fb_set_suspend(info, 1); + console_unlock(); /* there's no point in setting PCI states; we emulate PCI, so * we don't end up getting power savings anyways */ @@ -461,9 +458,9 @@ static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) return 0; } -static int lxfb_resume(struct pci_dev *pdev) +static int __maybe_unused lxfb_resume(struct device *dev) { - struct fb_info *info = pci_get_drvdata(pdev); + struct fb_info *info = dev_get_drvdata(dev); int ret; console_lock(); @@ -477,10 +474,6 @@ static int lxfb_resume(struct pci_dev *pdev) console_unlock(); return 0; } -#else -#define lxfb_suspend NULL -#define lxfb_resume NULL -#endif static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -600,13 +593,23 @@ static struct pci_device_id lxfb_id_table[] = { MODULE_DEVICE_TABLE(pci, lxfb_id_table); +static const struct dev_pm_ops lxfb_pm_ops = { +#ifdef CONFIG_PM_SLEEP + .suspend = lxfb_suspend, + .resume = lxfb_resume, + .freeze = NULL, + .thaw = lxfb_resume, + .poweroff = NULL, + .restore = lxfb_resume, +#endif +}; + static struct pci_driver lxfb_driver = { .name = "lxfb", .id_table = lxfb_id_table, .probe = lxfb_probe, .remove = lxfb_remove, - .suspend = lxfb_suspend, - .resume = lxfb_resume, + .driver.pm = &lxfb_pm_ops, }; #ifndef MODULE diff --git a/drivers/video/fbdev/geode/lxfb_ops.c b/drivers/video/fbdev/geode/lxfb_ops.c index 5be8bc62844c..b3a041fce570 100644 --- a/drivers/video/fbdev/geode/lxfb_ops.c +++ b/drivers/video/fbdev/geode/lxfb_ops.c @@ -580,8 +580,6 @@ int lx_blank_display(struct fb_info *info, int blank_mode) return 0; } -#ifdef CONFIG_PM - static void lx_save_regs(struct lxfb_par *par) { uint32_t filt; @@ -837,5 +835,3 @@ int lx_powerup(struct fb_info *info) par->powered_down = 0; return 0; } - -#endif -- 2.28.0