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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A7A3C433E6 for ; Tue, 12 Jan 2021 19:23:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D9E1E2310A for ; Tue, 12 Jan 2021 19:23:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2436836AbhALTXZ (ORCPT ); Tue, 12 Jan 2021 14:23:25 -0500 Received: from foss.arm.com ([217.140.110.172]:52242 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2436802AbhALTXV (ORCPT ); Tue, 12 Jan 2021 14:23:21 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6E1851576; Tue, 12 Jan 2021 11:21:44 -0800 (PST) Received: from e120937-lin.home (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9C0773F66E; Tue, 12 Jan 2021 11:21:42 -0800 (PST) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, lukasz.luba@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, thara.gopinath@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, cristian.marussi@arm.com Subject: [PATCH v5 21/36] reset: reset-scmi: port driver to the new scmi_reset_proto_ops interface Date: Tue, 12 Jan 2021 19:20:03 +0000 Message-Id: <20210112192018.34994-22-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112192018.34994-1-cristian.marussi@arm.com> References: <20210112192018.34994-1-cristian.marussi@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Port driver to the new SCMI Reset interface based on protocol handles and common devm_get_ops(). Signed-off-by: Cristian Marussi --- v4 --> v5 - using renamed devm_get/put_protocol --- drivers/reset/reset-scmi.c | 33 ++++++++++++++++++++------------- 1 file changed, 20 insertions(+), 13 deletions(-) diff --git a/drivers/reset/reset-scmi.c b/drivers/reset/reset-scmi.c index 8d3a858e3b19..161846ee44c8 100644 --- a/drivers/reset/reset-scmi.c +++ b/drivers/reset/reset-scmi.c @@ -2,7 +2,7 @@ /* * ARM System Control and Management Interface (ARM SCMI) reset driver * - * Copyright (C) 2019 ARM Ltd. + * Copyright (C) 2019-2020 ARM Ltd. */ #include @@ -11,18 +11,20 @@ #include #include +static const struct scmi_reset_proto_ops *reset_ops; + /** * struct scmi_reset_data - reset controller information structure * @rcdev: reset controller entity - * @handle: ARM SCMI handle used for communication with system controller + * @ph: ARM SCMI protocol handle used for communication with system controller */ struct scmi_reset_data { struct reset_controller_dev rcdev; - const struct scmi_handle *handle; + const struct scmi_protocol_handle *ph; }; #define to_scmi_reset_data(p) container_of((p), struct scmi_reset_data, rcdev) -#define to_scmi_handle(p) (to_scmi_reset_data(p)->handle) +#define to_scmi_handle(p) (to_scmi_reset_data(p)->ph) /** * scmi_reset_assert() - assert device reset @@ -37,9 +39,9 @@ struct scmi_reset_data { static int scmi_reset_assert(struct reset_controller_dev *rcdev, unsigned long id) { - const struct scmi_handle *handle = to_scmi_handle(rcdev); + const struct scmi_protocol_handle *ph = to_scmi_handle(rcdev); - return handle->reset_ops->assert(handle, id); + return reset_ops->assert(ph, id); } /** @@ -55,9 +57,9 @@ scmi_reset_assert(struct reset_controller_dev *rcdev, unsigned long id) static int scmi_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) { - const struct scmi_handle *handle = to_scmi_handle(rcdev); + const struct scmi_protocol_handle *ph = to_scmi_handle(rcdev); - return handle->reset_ops->deassert(handle, id); + return reset_ops->deassert(ph, id); } /** @@ -73,9 +75,9 @@ scmi_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) static int scmi_reset_reset(struct reset_controller_dev *rcdev, unsigned long id) { - const struct scmi_handle *handle = to_scmi_handle(rcdev); + const struct scmi_protocol_handle *ph = to_scmi_handle(rcdev); - return handle->reset_ops->reset(handle, id); + return reset_ops->reset(ph, id); } static const struct reset_control_ops scmi_reset_ops = { @@ -90,10 +92,15 @@ static int scmi_reset_probe(struct scmi_device *sdev) struct device *dev = &sdev->dev; struct device_node *np = dev->of_node; const struct scmi_handle *handle = sdev->handle; + struct scmi_protocol_handle *ph; - if (!handle || !handle->reset_ops) + if (!handle) return -ENODEV; + reset_ops = handle->devm_get_protocol(sdev, SCMI_PROTOCOL_RESET, &ph); + if (IS_ERR(reset_ops)) + return PTR_ERR(reset_ops); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -101,8 +108,8 @@ static int scmi_reset_probe(struct scmi_device *sdev) data->rcdev.ops = &scmi_reset_ops; data->rcdev.owner = THIS_MODULE; data->rcdev.of_node = np; - data->rcdev.nr_resets = handle->reset_ops->num_domains_get(handle); - data->handle = handle; + data->rcdev.nr_resets = reset_ops->num_domains_get(ph); + data->ph = ph; return devm_reset_controller_register(dev, &data->rcdev); } -- 2.17.1