From patchwork Thu Sep 8 00:30:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 604038 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C9176C6FA82 for ; Thu, 8 Sep 2022 00:31:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230223AbiIHAbS (ORCPT ); Wed, 7 Sep 2022 20:31:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230058AbiIHAbQ (ORCPT ); Wed, 7 Sep 2022 20:31:16 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DDC38B98C; Wed, 7 Sep 2022 17:31:14 -0700 (PDT) Received: from jupiter.universe (dyndsl-095-033-158-249.ewe-ip-backbone.de [95.33.158.249]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: sre) by madras.collabora.co.uk (Postfix) with ESMTPSA id 1EA006601F72; Thu, 8 Sep 2022 01:31:12 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1662597072; bh=IM+Bej5pINQkC3tmilDIvrNJfMrYRMJBQqOcyrnxP/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fWvrhLQPP83xRl+H7fKWhFDeSEmqd+n27MDvschXHdx3UrA8ngV1kztTnMArAIgEM hCG9tCsKZzhEKihG3YJTgX9vg64VdPylDT40HOcOVmHfzW796huy9fNTxNkKPmcKeV kMHLrFpbJaNMBiJpCuMF1MhDvURaYXJQmqMM424asRWsJptIQBjXq4bq40eLQ49Y5A 6igVf7Ac562Bk/fDCkIceOLn8siR/3FutSDt+m0x+Q1FcNpF2poApm2gD1JwnW/Yy/ m387zA5/FCQC4sy7Svm+pdB1aR7oJ+G7D7X5Yu/J964qYvPbq4mEUCtqzKolYt79JB pmN8zvsHJ+kcw== Received: by jupiter.universe (Postfix, from userid 1000) id 5C75A48057D; Thu, 8 Sep 2022 02:31:09 +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: [PATCHv2 01/13] mfd: rk808: convert to device managed resources Date: Thu, 8 Sep 2022 02:30:55 +0200 Message-Id: <20220908003107.220143-2-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220908003107.220143-1-sebastian.reichel@collabora.com> References: <20220908003107.220143-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Fully convert the driver to device managed resources. Signed-off-by: Sebastian Reichel --- drivers/mfd/rk808.c | 66 +++++++++++++++------------------------------ 1 file changed, 22 insertions(+), 44 deletions(-) diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c index 4142b638e5fa..c17fea1d48ca 100644 --- a/drivers/mfd/rk808.c +++ b/drivers/mfd/rk808.c @@ -527,13 +527,11 @@ 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: @@ -554,16 +552,18 @@ 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; @@ -579,16 +579,11 @@ 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); @@ -725,9 +720,9 @@ 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; @@ -751,17 +746,23 @@ 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; @@ -771,28 +772,6 @@ static int rk808_probe(struct i2c_client *client, } } - return 0; - -err_irq: - regmap_del_irq_chip(client->irq, rk808->irq_data); - return ret; -} - -static int 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); - return 0; } @@ -850,7 +829,6 @@ static struct i2c_driver rk808_i2c_driver = { .pm = &rk8xx_pm_ops, }, .probe = rk808_probe, - .remove = rk808_remove, .shutdown = rk8xx_shutdown, };