From patchwork Mon Jan 18 06:00:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Holland X-Patchwork-Id: 12026551 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 C8552C433DB for ; Mon, 18 Jan 2021 06:02:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 927A922512 for ; Mon, 18 Jan 2021 06:02:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732455AbhARGB7 (ORCPT ); Mon, 18 Jan 2021 01:01:59 -0500 Received: from wout2-smtp.messagingengine.com ([64.147.123.25]:33593 "EHLO wout2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732323AbhARGBt (ORCPT ); Mon, 18 Jan 2021 01:01:49 -0500 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.west.internal (Postfix) with ESMTP id 2BBFF1654; Mon, 18 Jan 2021 01:00:52 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Mon, 18 Jan 2021 01:00:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=APUXW7opGCrXk J0FX4uaEp3rryEdb5R1fRBATUuYTOM=; b=qsSVq+hOyAm1CHFlR4JOonLTl7qxh 4I18dJqO6AbzXerv2cGxKkY025xWiUgwIABvQhnKeBaMHUZ/IZ+OdRs36esqk/mJ 2iEzCnowIJTfpRQjKalVf5BgsC2xStuQGIRrrKhdCDfhUTJImzpCW7c8HnaOeqmx rOsBmiwKaUqcjp0iemBUcrtIJjh75hJyLaPcbPKqTmRi6w8Xg6m8BwJoYbFjyST2 1TSP4ajVcmJCR9cihC9RWNc87F/cR2kWDj3dHW2yhdfui939LGLLL2SEShlyZkqZ O7FgrWOYQyU2RSguSjVFyUGnmzD8BWjs5rxSmn6Clp73N9g7TJ6VygUHA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=APUXW7opGCrXkJ0FX4uaEp3rryEdb5R1fRBATUuYTOM=; b=OUn2j+Jt cqoXjF7mevlqrYIaBGXjgh3UuTwRi8orDT2pA/S2h0yxCZJnzvbUndNv5hgNGJZq cGKdSI2YytzbgsvVC8v0dr5dwqHo+sgXaQySk4dW8RQMZVHv/xKu12QqseqR7OZr nyzpvxewQbuBiTWChqwgwPuHIv7/tBfsRvTa64D72mpvlrlZsHrhLnhjYLnPVHZ7 DEANBedxmrJxnlTSkaMtb28Wrsj7vVyOcGnTLgsZ4oawuD+k94Oy7Ctc9vrupEtl zlorgT25rdyz3lmxzxbwKvWbQ8FrrbgnZTbmy1T4OyKWFaiR+9SQSjRfoUkgnMms 6vQzIczdrTANdw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrtdejgdeklecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufgrmhhuvghl ucfjohhllhgrnhguuceoshgrmhhuvghlsehshhholhhlrghnugdrohhrgheqnecuggftrf grthhtvghrnhepudfhjeefvdfhgfefheetgffhieeigfefhefgvddvveefgeejheejvdfg jeehueeinecukfhppeejtddrudefhedrudegkedrudehudenucevlhhushhtvghrufhiii gvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsrghmuhgvlhesshhhohhllhgrnhgu rdhorhhg X-ME-Proxy: Received: from titanium.stl.sholland.net (70-135-148-151.lightspeed.stlsmo.sbcglobal.net [70.135.148.151]) by mail.messagingengine.com (Postfix) with ESMTPA id 3A5391080067; Mon, 18 Jan 2021 01:00:51 -0500 (EST) From: Samuel Holland To: Sean Young , Mauro Carvalho Chehab , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, Samuel Holland Subject: [PATCH v2 4/4] media: sunxi-cir: Implement suspend/resume/shutdown callbacks Date: Mon, 18 Jan 2021 00:00:48 -0600 Message-Id: <20210118060048.22267-5-samuel@sholland.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210118060048.22267-1-samuel@sholland.org> References: <20210118060048.22267-1-samuel@sholland.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org To save power, gate/reset the hardware block while the system is asleep or powered off. Signed-off-by: Samuel Holland --- drivers/media/rc/sunxi-cir.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c index 2d099da8d3cc..168e1d2c876a 100644 --- a/drivers/media/rc/sunxi-cir.c +++ b/drivers/media/rc/sunxi-cir.c @@ -234,6 +234,20 @@ static void sunxi_ir_hw_exit(struct device *dev) reset_control_assert(ir->rst); } +static int __maybe_unused sunxi_ir_suspend(struct device *dev) +{ + sunxi_ir_hw_exit(dev); + + return 0; +} + +static int __maybe_unused sunxi_ir_resume(struct device *dev) +{ + return sunxi_ir_hw_init(dev); +} + +static SIMPLE_DEV_PM_OPS(sunxi_ir_pm_ops, sunxi_ir_suspend, sunxi_ir_resume); + static int sunxi_ir_probe(struct platform_device *pdev) { int ret = 0; @@ -362,6 +376,11 @@ static int sunxi_ir_remove(struct platform_device *pdev) return 0; } +static void sunxi_ir_shutdown(struct platform_device *pdev) +{ + sunxi_ir_hw_exit(&pdev->dev); +} + static const struct sunxi_ir_quirks sun4i_a10_ir_quirks = { .has_reset = false, .fifo_size = 16, @@ -397,9 +416,11 @@ MODULE_DEVICE_TABLE(of, sunxi_ir_match); static struct platform_driver sunxi_ir_driver = { .probe = sunxi_ir_probe, .remove = sunxi_ir_remove, + .shutdown = sunxi_ir_shutdown, .driver = { .name = SUNXI_IR_DEV, .of_match_table = sunxi_ir_match, + .pm = &sunxi_ir_pm_ops, }, };