From mboxrd@z Thu Jan 1 00:00:00 1970 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 12A70C77B75 for ; Mon, 15 May 2023 18:05:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244939AbjEOSFf (ORCPT ); Mon, 15 May 2023 14:05:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244927AbjEOSFO (ORCPT ); Mon, 15 May 2023 14:05:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC4D218987 for ; Mon, 15 May 2023 11:02:57 -0700 (PDT) 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 74F486307E for ; Mon, 15 May 2023 18:02:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 843AFC433D2; Mon, 15 May 2023 18:02:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684173776; bh=QKnPYoNfJHpYUOJ2pC81Ucz8grnRi8FPBRVHApVh53U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TysM9jDUzv2xwn23D+bjwszVzMgj1CWoWBLxaT3nQMjLO8INJzslAw33oT6eUsXLO J202iIRXvN3QJIM9xlZM/1dyDNQoILLrDDKsN+oVE30rxoGEsQZS1gl9bnYoh0pHQ8 sbhCASn18iaJoLahUi3Cy9KLoPbieUNSJeUCYR3Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bartosz Golaszewski , Nicolas Saenz Julienne , Florian Fainelli , Sasha Levin Subject: [PATCH 5.4 172/282] firmware: raspberrypi: Introduce devm_rpi_firmware_get() Date: Mon, 15 May 2023 18:29:10 +0200 Message-Id: <20230515161727.363115080@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161722.146344674@linuxfoundation.org> References: <20230515161722.146344674@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Nicolas Saenz Julienne [ Upstream commit f663204c9a1f8d6fcc590667d9d7a9f44e064644 ] It'll simplify the firmware handling for most consumers. Suggested-by: Bartosz Golaszewski Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Florian Fainelli Reviewed-by: Bartosz Golaszewski Stable-dep-of: 5bca3688bdbc ("Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe") Signed-off-by: Sasha Levin --- drivers/firmware/raspberrypi.c | 29 ++++++++++++++++++++++ include/soc/bcm2835/raspberrypi-firmware.h | 8 ++++++ 2 files changed, 37 insertions(+) diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index eb3b052a407ec..6a60b5bde0c98 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -232,6 +232,13 @@ void rpi_firmware_put(struct rpi_firmware *fw) } EXPORT_SYMBOL_GPL(rpi_firmware_put); +static void devm_rpi_firmware_put(void *data) +{ + struct rpi_firmware *fw = data; + + rpi_firmware_put(fw); +} + static int rpi_firmware_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -320,6 +327,28 @@ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) } EXPORT_SYMBOL_GPL(rpi_firmware_get); +/** + * devm_rpi_firmware_get - Get pointer to rpi_firmware structure. + * @firmware_node: Pointer to the firmware Device Tree node. + * + * Returns NULL is the firmware device is not ready. + */ +struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, + struct device_node *firmware_node) +{ + struct rpi_firmware *fw; + + fw = rpi_firmware_get(firmware_node); + if (!fw) + return NULL; + + if (devm_add_action_or_reset(dev, devm_rpi_firmware_put, fw)) + return NULL; + + return fw; +} +EXPORT_SYMBOL_GPL(devm_rpi_firmware_get); + static const struct of_device_id rpi_firmware_of_match[] = { { .compatible = "raspberrypi,bcm2835-firmware", }, {}, diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index f11e9d3f6fd30..cf6e58fa5266b 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -142,6 +142,8 @@ int rpi_firmware_property_list(struct rpi_firmware *fw, void *data, size_t tag_size); void rpi_firmware_put(struct rpi_firmware *fw); struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node); +struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, + struct device_node *firmware_node); #else static inline int rpi_firmware_property(struct rpi_firmware *fw, u32 tag, void *data, size_t len) @@ -160,6 +162,12 @@ static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware { return NULL; } + +static inline struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, + struct device_node *firmware_node) +{ + return NULL; +} #endif #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */ -- 2.39.2