From patchwork Thu Oct 20 20:42:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 13014012 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 63178C4167D for ; Thu, 20 Oct 2022 20:43:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OU+H4/mW3LiNDULk/yUY3DV7Ra/3oeNAHR4pIOuxotw=; b=uAWrMZUoVglOVf XUrLMX9dP+4MMOo1/QD/6H+TCT3QV3NeMmP/qXSzwCSDGF+ocCDrcA5hoD6Xx7Y3ba2y4n3Bn/wV8 vsMaD0+l/gWc60TbaX7vJfpvNmL/mjq1pNjymVt81myww3zicWJVrX67yredCi9hhF9t1yEXZzKSM KljgQpaZLNT9YmJ/ctgMvaX9hTUWyQnRz+tCFLfcBhk4Oi8kyBf+5GFX96RX3imokjAhhJjHd2a6/ KfPaRb6R5IlYWXQs2Yq9LIVvu1at7lCE1qXY8Skxeld3IrvS2iXQ3hfFaSA8Ntzp4UOsDhyPDdaOv ss6e/tnANun8wLWTU2yQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1olcNd-001kTS-Ru; Thu, 20 Oct 2022 20:43:05 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1olcNY-001kNP-BG for linux-rockchip@lists.infradead.org; Thu, 20 Oct 2022 20:43:03 +0000 Received: from jupiter.universe (dyndsl-091-096-059-009.ewe-ip-backbone.de [91.96.59.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: sre) by madras.collabora.co.uk (Postfix) with ESMTPSA id B3227660252D; Thu, 20 Oct 2022 21:42:54 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1666298574; bh=Dmpj3FvbFbooH0xr/mAewEFx/soj7LsJn0sCs3wKPuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jOC6LY2aWniXRLRhOwwN4Su56GODnqeDJ5eyx8s+aVg2/7FEEwXQImE+N3dSO2R59 b7WqwpDYPKSgHcxlpiOD9S9dS32bGBW7uPCiHbh5bC+fHMzX47IpaZQLxrt8+mGmhf JFkkURVCGP+KHqWL9ekGFmzjbAm3Kuti/v3VyRwojUJNU883j+UWGY5twh8rkezwIY NrGyRb6p9FDq0gsfMwibkn2n6m5nIwoUHAt5ocQFDav6PsLbSyqMYV/6bPMMUrvy2k 0J3a0vrx3LmF3qnEclDlYJyAGKykkUGXcONABokVz+89ymN8Hd4BlFtE3rM0Cg2C7h hOp0R07mGwMFQ== Received: by jupiter.universe (Postfix, from userid 1000) id 5704C480899; Thu, 20 Oct 2022 22:42:52 +0200 (CEST) From: Sebastian Reichel To: Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Lee Jones Cc: Michael Turquette , Stephen Boyd , Linus Walleij , Mark Brown , Liam Girdwood , Alexandre Belloni , Alessandro Zummo , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sebastian Reichel , kernel@collabora.com Subject: [PATCHv4 04/13] mfd: rk808: convert to device managed resources Date: Thu, 20 Oct 2022 22:42:42 +0200 Message-Id: <20221020204251.108565-5-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221020204251.108565-1-sebastian.reichel@collabora.com> References: <20221020204251.108565-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221020_134300_665399_EA5F191B X-CRM114-Status: GOOD ( 18.12 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Fully convert the driver to device managed resources. Acked-for-MFD-by: Lee Jones Signed-off-by: Sebastian Reichel --- drivers/mfd/rk808.c | 64 ++++++++++++++++----------------------------- 1 file changed, 22 insertions(+), 42 deletions(-) diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c index e00da7c7e3b1..e2e7a2c85019 100644 --- a/drivers/mfd/rk808.c +++ b/drivers/mfd/rk808.c @@ -541,13 +541,11 @@ static const struct regmap_irq_chip rk818_irq_chip = { .init_ack_masked = true, }; -static struct i2c_client *rk808_i2c_client; - -static void rk808_pm_power_off(void) +static int rk808_power_off(struct sys_off_data *data) { + struct rk808 *rk808 = data->cb_data; int ret; unsigned int reg, bit; - struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client); switch (rk808->variant) { case RK805_ID: @@ -568,16 +566,18 @@ static void rk808_pm_power_off(void) bit = DEV_OFF; break; default: - return; + return NOTIFY_DONE; } ret = regmap_update_bits(rk808->regmap, reg, bit, bit); if (ret) - dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n"); + dev_err(&rk808->i2c->dev, "Failed to shutdown device!\n"); + + return NOTIFY_DONE; } -static int rk808_restart_notify(struct notifier_block *this, unsigned long mode, void *cmd) +static int rk808_restart(struct sys_off_data *data) { - struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client); + struct rk808 *rk808 = data->cb_data; unsigned int reg, bit; int ret; @@ -593,16 +593,11 @@ static int rk808_restart_notify(struct notifier_block *this, unsigned long mode, } ret = regmap_update_bits(rk808->regmap, reg, bit, bit); if (ret) - dev_err(&rk808_i2c_client->dev, "Failed to restart device!\n"); + dev_err(&rk808->i2c->dev, "Failed to restart device!\n"); return NOTIFY_DONE; } -static struct notifier_block rk808_restart_handler = { - .notifier_call = rk808_restart_notify, - .priority = 192, -}; - static void rk8xx_shutdown(struct i2c_client *client) { struct rk808 *rk808 = i2c_get_clientdata(client); @@ -739,9 +734,9 @@ static int rk808_probe(struct i2c_client *client, return -EINVAL; } - ret = regmap_add_irq_chip(rk808->regmap, client->irq, - IRQF_ONESHOT, -1, - rk808->regmap_irq_chip, &rk808->irq_data); + ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq, + IRQF_ONESHOT, -1, + rk808->regmap_irq_chip, &rk808->irq_data); if (ret) { dev_err(&client->dev, "Failed to add irq_chip %d\n", ret); return ret; @@ -765,17 +760,23 @@ static int rk808_probe(struct i2c_client *client, regmap_irq_get_domain(rk808->irq_data)); if (ret) { dev_err(&client->dev, "failed to add MFD devices %d\n", ret); - goto err_irq; + return ret; } if (of_property_read_bool(np, "rockchip,system-power-controller")) { - rk808_i2c_client = client; - pm_power_off = rk808_pm_power_off; + ret = devm_register_sys_off_handler(&client->dev, + SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH, + &rk808_power_off, rk808); + if (ret) + return dev_err_probe(&client->dev, ret, + "failed to register poweroff handler\n"); switch (rk808->variant) { case RK809_ID: case RK817_ID: - ret = register_restart_handler(&rk808_restart_handler); + ret = devm_register_sys_off_handler(&client->dev, + SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH, + &rk808_restart, rk808); if (ret) dev_warn(&client->dev, "failed to register rst handler, %d\n", ret); break; @@ -786,26 +787,6 @@ static int rk808_probe(struct i2c_client *client, } return 0; - -err_irq: - regmap_del_irq_chip(client->irq, rk808->irq_data); - return ret; -} - -static void rk808_remove(struct i2c_client *client) -{ - struct rk808 *rk808 = i2c_get_clientdata(client); - - regmap_del_irq_chip(client->irq, rk808->irq_data); - - /** - * pm_power_off may points to a function from another module. - * Check if the pointer is set by us and only then overwrite it. - */ - if (pm_power_off == rk808_pm_power_off) - pm_power_off = NULL; - - unregister_restart_handler(&rk808_restart_handler); } static int __maybe_unused rk8xx_suspend(struct device *dev) @@ -862,7 +843,6 @@ static struct i2c_driver rk808_i2c_driver = { .pm = &rk8xx_pm_ops, }, .probe = rk808_probe, - .remove = rk808_remove, .shutdown = rk8xx_shutdown, };