From patchwork Thu Mar 9 22:50:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 13168511 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 1D29FC74A44 for ; Thu, 9 Mar 2023 22:50:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230256AbjCIWuz (ORCPT ); Thu, 9 Mar 2023 17:50:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56286 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229983AbjCIWux (ORCPT ); Thu, 9 Mar 2023 17:50:53 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31C01F4B6C; Thu, 9 Mar 2023 14:50:47 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C4F8161D13; Thu, 9 Mar 2023 22:50:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 02A2CC4339C; Thu, 9 Mar 2023 22:50:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678402246; bh=a3VYe+fYM8Slw651PTtj6eTDFBaG7Vg0KmpeutoQk4s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r2+vqizYR3y4nyC33J1olLG191fKPuABLSbgzE/Wh6fi9yqP/EVbG2AJfTTQh8Zsq /IzyRgHiwvkw37k6IPhvY/mveLaP5Ga8RHGbR4354R4vpQfqxW5Kd8mzk4EdH4oTT5 ylplyifqXrqMg7E3CkLvSQVzUkgqGF9eG+F6R6kWcCeGE6gl+2qAmMVIz1Qa5OydzF /OXcFCHoPtL9laMK9xRzq8KmzjJXEM92awTSsspUgqTeToiJkW8yd6g/VsXA50KmsI jyTEZcQgtlNXHlh+0almiuzPj+bd07cmarHyT6I+hnGauXmWJcExl/nEXIkNLERa6Z OF+lF88AxckIA== Received: by mercury (Postfix, from userid 1000) id 628041060998; Thu, 9 Mar 2023 23:50:43 +0100 (CET) From: Sebastian Reichel To: Sebastian Reichel Cc: Linus Walleij , Matti Vaittinen , Rob Herring , Krzysztof Kozlowski , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCHv1 03/11] power: supply: generic-adc-battery: convert to managed resources Date: Thu, 9 Mar 2023 23:50:33 +0100 Message-Id: <20230309225041.477440-4-sre@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230309225041.477440-1-sre@kernel.org> References: <20230309225041.477440-1-sre@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Convert driver to use managed resources to simplify driver code. Signed-off-by: Sebastian Reichel Reviewed-by: Linus Walleij Reviewed-by: Matti Vaittinen --- drivers/power/supply/generic-adc-battery.c | 81 ++++++---------------- 1 file changed, 23 insertions(+), 58 deletions(-) diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c index 66039c665dd1..917bd2a6cc52 100644 --- a/drivers/power/supply/generic-adc-battery.c +++ b/drivers/power/supply/generic-adc-battery.c @@ -23,6 +23,7 @@ #include #include #include +#include #define JITTER_DEFAULT 10 /* hope 10ms is enough */ @@ -266,14 +267,13 @@ static int gab_probe(struct platform_device *pdev) * copying the static properties and allocating extra memory for holding * the extra configurable properties received from platform data. */ - properties = kcalloc(ARRAY_SIZE(gab_props) + - ARRAY_SIZE(gab_chan_name), - sizeof(*properties), - GFP_KERNEL); - if (!properties) { - ret = -ENOMEM; - goto first_mem_fail; - } + properties = devm_kcalloc(&pdev->dev, + ARRAY_SIZE(gab_props) + + ARRAY_SIZE(gab_chan_name), + sizeof(*properties), + GFP_KERNEL); + if (!properties) + return -ENOMEM; memcpy(properties, gab_props, sizeof(gab_props)); @@ -282,12 +282,13 @@ static int gab_probe(struct platform_device *pdev) * based on the channel supported by consumer device. */ for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) { - adc_bat->channel[chan] = iio_channel_get(&pdev->dev, - gab_chan_name[chan]); + adc_bat->channel[chan] = devm_iio_channel_get(&pdev->dev, gab_chan_name[chan]); if (IS_ERR(adc_bat->channel[chan])) { ret = PTR_ERR(adc_bat->channel[chan]); + if (ret != -ENODEV) + return dev_err_probe(&pdev->dev, ret, "Failed to get ADC channel %s\n", gab_chan_name[chan]); adc_bat->channel[chan] = NULL; - } else { + } else if (adc_bat->channel[chan]) { /* copying properties for supported channels only */ int index2; @@ -302,10 +303,8 @@ static int gab_probe(struct platform_device *pdev) } /* none of the channels are supported so let's bail out */ - if (!any) { - ret = -ENODEV; - goto second_mem_fail; - } + if (!any) + return dev_err_probe(&pdev->dev, -ENODEV, "Failed to get any ADC channel\n"); /* * Total number of properties is equal to static properties @@ -316,25 +315,24 @@ static int gab_probe(struct platform_device *pdev) psy_desc->properties = properties; psy_desc->num_properties = index; - adc_bat->psy = power_supply_register(&pdev->dev, psy_desc, &psy_cfg); - if (IS_ERR(adc_bat->psy)) { - ret = PTR_ERR(adc_bat->psy); - goto err_reg_fail; - } + adc_bat->psy = devm_power_supply_register(&pdev->dev, psy_desc, &psy_cfg); + if (IS_ERR(adc_bat->psy)) + return dev_err_probe(&pdev->dev, PTR_ERR(adc_bat->psy), "Failed to register power-supply device\n"); - INIT_DELAYED_WORK(&adc_bat->bat_work, gab_work); + ret = devm_delayed_work_autocancel(&pdev->dev, &adc_bat->bat_work, gab_work); + if (ret) + return dev_err_probe(&pdev->dev, ret, "Failed to register delayed work\n"); - adc_bat->charge_finished = devm_gpiod_get_optional(&pdev->dev, - "charged", GPIOD_IN); + adc_bat->charge_finished = devm_gpiod_get_optional(&pdev->dev, "charged", GPIOD_IN); if (adc_bat->charge_finished) { int irq; irq = gpiod_to_irq(adc_bat->charge_finished); - ret = request_any_context_irq(irq, gab_charged, + ret = devm_request_any_context_irq(&pdev->dev, irq, gab_charged, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "battery charged", adc_bat); if (ret < 0) - goto gpio_req_fail; + return dev_err_probe(&pdev->dev, ret, "Failed to register irq\n"); } platform_set_drvdata(pdev, adc_bat); @@ -343,38 +341,6 @@ static int gab_probe(struct platform_device *pdev) schedule_delayed_work(&adc_bat->bat_work, msecs_to_jiffies(0)); return 0; - -gpio_req_fail: - power_supply_unregister(adc_bat->psy); -err_reg_fail: - for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) { - if (adc_bat->channel[chan]) - iio_channel_release(adc_bat->channel[chan]); - } -second_mem_fail: - kfree(properties); -first_mem_fail: - return ret; -} - -static int gab_remove(struct platform_device *pdev) -{ - int chan; - struct gab *adc_bat = platform_get_drvdata(pdev); - - power_supply_unregister(adc_bat->psy); - - if (adc_bat->charge_finished) - free_irq(gpiod_to_irq(adc_bat->charge_finished), adc_bat); - - for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) { - if (adc_bat->channel[chan]) - iio_channel_release(adc_bat->channel[chan]); - } - - kfree(adc_bat->psy_desc.properties); - cancel_delayed_work_sync(&adc_bat->bat_work); - return 0; } static int __maybe_unused gab_suspend(struct device *dev) @@ -408,7 +374,6 @@ static struct platform_driver gab_driver = { .pm = &gab_pm_ops, }, .probe = gab_probe, - .remove = gab_remove, }; module_platform_driver(gab_driver);