From patchwork Mon Jan 15 16:14:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Richard X-Patchwork-Id: 13519786 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1525D179BD; Mon, 15 Jan 2024 16:16:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="COOXp3qP" Received: by mail.gandi.net (Postfix) with ESMTPSA id 322DFC0008; Mon, 15 Jan 2024 16:16:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1705335382; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5sUS3vLWJetwrOxifoKHwojurtz05QQ0WVVV+b0as8c=; b=COOXp3qPdfsNX4WwaTj+W6tNhEJvjMWJwGpreYYsAzWHkD+A6UGJGtR6y0XvJRVUth+rs2 1gASrl5oLU9BrJ/J2UDxOXzPYx03q3SW8eLI+TtSKxG9C06QjLKmVsS5khzb3ZRbjvTjOi 0LH8AB+Uh+p8St2qxjjUc4GPijrgM5cK0qsEYAYs0yFtAl2NRy6aXsbXjmZJUAKhoy/JwA 2nMmfnm1FYFGQrlzibu6pz121m3l+m5C2Lyc2+WMMqyVY77aIttUeEwpzzSfk2qOJvNgLY qYRFtnhkloQNhaO9Tw9kjSKVn8hh8m1vhZseUUKfrl3wnB7AmJhciG9L9f7Aww== From: Thomas Richard Date: Mon, 15 Jan 2024 17:14:47 +0100 Subject: [PATCH 06/14] phy: ti: phy-j721e-wiz: add resume support Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240102-j7200-pcie-s2r-v1-6-84e55da52400@bootlin.com> References: <20240102-j7200-pcie-s2r-v1-0-84e55da52400@bootlin.com> In-Reply-To: <20240102-j7200-pcie-s2r-v1-0-84e55da52400@bootlin.com> To: Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Tony Lindgren , Haojian Zhuang , Vignesh R , Aaro Koskinen , Janusz Krzysztofik , Andi Shyti , Peter Rosin , Vinod Koul , Kishon Vijay Abraham I , Philipp Zabel , Tom Joseph , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Rob Herring , Bjorn Helgaas Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-phy@lists.infradead.org, linux-pci@vger.kernel.org, gregory.clement@bootlin.com, theo.lebrun@bootlin.com, thomas.petazzoni@bootlin.com, u-kumar1@ti.com, Thomas Richard X-Mailer: b4 0.12.0 X-GND-Sasl: thomas.richard@bootlin.com Add resume support. It has been tested on J7200 SR1.0 and SR2.0. Based on the work of Théo Lebrun Signed-off-by: Thomas Richard --- drivers/phy/ti/phy-j721e-wiz.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c index 09f7edf16562..fac7070a9d6b 100644 --- a/drivers/phy/ti/phy-j721e-wiz.c +++ b/drivers/phy/ti/phy-j721e-wiz.c @@ -1666,12 +1666,51 @@ static void wiz_remove(struct platform_device *pdev) pm_runtime_disable(dev); } +#ifdef CONFIG_PM +static int wiz_resume_noirq(struct device *dev) +{ + struct device_node *node = dev->of_node; + struct wiz *wiz = dev_get_drvdata(dev); + int ret; + + /* Enable supplemental Control override if available */ + if (wiz->sup_legacy_clk_override) + regmap_field_write(wiz->sup_legacy_clk_override, 1); + + ret = wiz_clock_init(wiz, node, false); + if (ret < 0) { + dev_warn(dev, "Failed to initialize clocks\n"); + goto err_get_sync; + } + + ret = wiz_init(wiz); + if (ret) { + dev_err(dev, "WIZ initialization failed\n"); + goto err_wiz_init; + } + + return 0; + +err_wiz_init: + wiz_clock_cleanup(wiz, node); + +err_get_sync: + + return ret; +} + +static const struct dev_pm_ops wiz_pm_ops = { + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(NULL, wiz_resume_noirq) +}; +#endif + static struct platform_driver wiz_driver = { .probe = wiz_probe, .remove_new = wiz_remove, .driver = { .name = "wiz", .of_match_table = wiz_id_table, + .pm = pm_ptr(&wiz_pm_ops), }, }; module_platform_driver(wiz_driver);