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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 D2965C433ED for ; Mon, 17 May 2021 06:36:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF7F061209 for ; Mon, 17 May 2021 06:36:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235013AbhEQGhc (ORCPT ); Mon, 17 May 2021 02:37:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233778AbhEQGh1 (ORCPT ); Mon, 17 May 2021 02:37:27 -0400 Received: from mail-pl1-x630.google.com (mail-pl1-x630.google.com [IPv6:2607:f8b0:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07FA9C061573 for ; Sun, 16 May 2021 23:36:11 -0700 (PDT) Received: by mail-pl1-x630.google.com with SMTP id b21so2586158plz.0 for ; Sun, 16 May 2021 23:36:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=0Tg/RgH3lp5a6IJvwx2oVZOXwmXN1gNn/tsf5GPtb30=; b=MVc5tdGuSSUGmOzbRzu21NtT/fVffglYdp2tHOwdLEDQEOl37jDtoulN8H0ED38KMq LTXzbhVAf4v4A70E7+h6V+hP6ckzhj23OQ+7/wUX0FM009eDjwgF6VqmZywn/uJeM0LL zauYn3zpV5igIJ9RmdyJOYHF0+MfLMsB5kQaU= 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=0Tg/RgH3lp5a6IJvwx2oVZOXwmXN1gNn/tsf5GPtb30=; b=EE5ChAAzlf6QuW92ZLc/NpBJb9NU4d+xzLTgvq9LvN8KTQZbsq0Ee46K4WCdL3PCC3 k9f1GRvTGGH67SVhOA/nr2T3kHYmdePGaMBnKU2GhcDHcUzWV6wTsB6PRlWKSUVnLZ7t LWJT0OOR7eeBTzSPC740UmKV3PAGFwTf15Pent0T5g6i+nQhosA/2TAJlZ9AK5edJ+NB O1ufP2jMVdtqYtUvZ248S6QFMwbCtdBksw8XPWAXJYu42LIIQJYq5O9WsW+iWseXeIHJ QhR1tg2MLRv1hl/SD9a6RwPYkNGfa7m3CLI5PgQHZol7f9O1C49FojMgrmRhDCdwYmmo OT+w== X-Gm-Message-State: AOAM5307AEaPIM45M4e2I1x0antIhEMPFEdSnUQkD6EmZBkO7frGOpZ8 qh5s5GqKFK9hnzFf4tMUrRDCWg== X-Google-Smtp-Source: ABdhPJy9094BrnHnEUXn71wH1HENbeF/VCLgouqXsZoavo6R53U59pCdxn2vVifSvk0jvhwwVUNn9g== X-Received: by 2002:a17:90a:f18e:: with SMTP id bv14mr18728495pjb.234.1621233370562; Sun, 16 May 2021 23:36:10 -0700 (PDT) Received: from kafuu-chino.c.googlers.com.com (105.219.229.35.bc.googleusercontent.com. [35.229.219.105]) by smtp.googlemail.com with ESMTPSA id js6sm13287612pjb.0.2021.05.16.23.36.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 May 2021 23:36:10 -0700 (PDT) From: Pi-Hsun Shih Cc: Pi-Hsun Shih , Tzung-Bi Shih , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , Xin Ji , Sam Ravnborg , Hsin-Yi Wang , dri-devel@lists.freedesktop.org (open list:DRM DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v5 2/2] drm/bridge: anx7625: add suspend / resume hooks Date: Mon, 17 May 2021 14:35:29 +0800 Message-Id: <20210517063553.554955-2-pihsun@chromium.org> X-Mailer: git-send-email 2.31.1.751.gd2f1c929bd-goog In-Reply-To: <20210517063553.554955-1-pihsun@chromium.org> References: <20210517063553.554955-1-pihsun@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add suspend / resume hooks for anx7625 driver, that power off the device on suspend and power on the device on resume if it was previously powered. Signed-off-by: Pi-Hsun Shih --- Changes in v5: * Disable irq and flush workqueue in suspend hook, so the irq handler won't be run during suspend. Changes in v3, v4: * No change. --- drivers/gpu/drm/bridge/analogix/anx7625.c | 32 +++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index e1bf31eafe22..8fb76ca66e5b 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -1705,7 +1705,39 @@ static int __maybe_unused anx7625_runtime_pm_resume(struct device *dev) return 0; } +static int __maybe_unused anx7625_resume(struct device *dev) +{ + struct anx7625_data *ctx = dev_get_drvdata(dev); + + if (!ctx->pdata.intp_irq) + return 0; + + if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) { + enable_irq(ctx->pdata.intp_irq); + anx7625_runtime_pm_resume(dev); + } + + return 0; +} + +static int __maybe_unused anx7625_suspend(struct device *dev) +{ + struct anx7625_data *ctx = dev_get_drvdata(dev); + + if (!ctx->pdata.intp_irq) + return 0; + + if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) { + anx7625_runtime_pm_suspend(dev); + disable_irq(ctx->pdata.intp_irq); + flush_workqueue(ctx->workqueue); + } + + return 0; +} + static const struct dev_pm_ops anx7625_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(anx7625_suspend, anx7625_resume) SET_RUNTIME_PM_OPS(anx7625_runtime_pm_suspend, anx7625_runtime_pm_resume, NULL) }; -- 2.31.1.751.gd2f1c929bd-goog