From nobody Sun Sep 14 22:15:28 2025 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 6ACEAC32793 for ; Wed, 18 Jan 2023 12:52:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231237AbjARMw4 (ORCPT ); Wed, 18 Jan 2023 07:52:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230462AbjARMvy (ORCPT ); Wed, 18 Jan 2023 07:51:54 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id CF16043455 for ; Wed, 18 Jan 2023 04:15:06 -0800 (PST) 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 C10D116F3; Wed, 18 Jan 2023 04:15:48 -0800 (PST) Received: from e120937-lin.. (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9253F3F71A; Wed, 18 Jan 2023 04:15:04 -0800 (PST) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, wleavitt@marvell.com, peter.hilber@opensynergy.com, nicola.mazzucato@arm.com, tarek.el-sherbiny@arm.com, quic_kshivnan@quicinc.com, cristian.marussi@arm.com Subject: [PATCH v8 02/17] firmware: arm_scmi: Refactor polling helpers Date: Wed, 18 Jan 2023 12:14:11 +0000 Message-Id: <20230118121426.492864-3-cristian.marussi@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230118121426.492864-1-cristian.marussi@arm.com> References: <20230118121426.492864-1-cristian.marussi@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Refactor polling helpers to receive scmi_desc directly as a parameter and move all of them to common.h. No functional change. Signed-off-by: Cristian Marussi --- drivers/firmware/arm_scmi/common.h | 18 ++++++++++++++++ drivers/firmware/arm_scmi/driver.c | 34 ++++++++---------------------- 2 files changed, 27 insertions(+), 25 deletions(-) diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi= /common.h index 80f63fc8ca14..f785f0ff2090 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -211,6 +211,24 @@ struct scmi_desc { const bool atomic_enabled; }; =20 +static inline bool is_polling_required(struct scmi_chan_info *cinfo, + const struct scmi_desc *desc) +{ + return cinfo->no_completion_irq || desc->force_polling; +} + +static inline bool is_transport_polling_capable(const struct scmi_desc *de= sc) +{ + return desc->ops->poll_done || desc->sync_cmds_completed_on_ret; +} + +static inline bool is_polling_enabled(struct scmi_chan_info *cinfo, + const struct scmi_desc *desc) +{ + return is_polling_required(cinfo, desc) && + is_transport_polling_capable(desc); +} + #ifdef CONFIG_ARM_SCMI_TRANSPORT_MAILBOX extern const struct scmi_desc scmi_mailbox_desc; #endif diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi= /driver.c index 3400bd124a38..d7f21e81bd11 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -748,25 +748,6 @@ static inline void scmi_clear_channel(struct scmi_info= *info, info->desc->ops->clear_channel(cinfo); } =20 -static inline bool is_polling_required(struct scmi_chan_info *cinfo, - struct scmi_info *info) -{ - return cinfo->no_completion_irq || info->desc->force_polling; -} - -static inline bool is_transport_polling_capable(struct scmi_info *info) -{ - return info->desc->ops->poll_done || - info->desc->sync_cmds_completed_on_ret; -} - -static inline bool is_polling_enabled(struct scmi_chan_info *cinfo, - struct scmi_info *info) -{ - return is_polling_required(cinfo, info) && - is_transport_polling_capable(info); -} - static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr, void *priv) { @@ -1009,7 +990,8 @@ static int do_xfer(const struct scmi_protocol_handle *= ph, struct scmi_chan_info *cinfo; =20 /* Check for polling request on custom command xfers at first */ - if (xfer->hdr.poll_completion && !is_transport_polling_capable(info)) { + if (xfer->hdr.poll_completion && + !is_transport_polling_capable(info->desc)) { dev_warn_once(dev, "Polling mode is not supported by transport.\n"); return -EINVAL; @@ -1020,7 +1002,7 @@ static int do_xfer(const struct scmi_protocol_handle = *ph, return -EINVAL; =20 /* True ONLY if also supported by transport. */ - if (is_polling_enabled(cinfo, info)) + if (is_polling_enabled(cinfo, info->desc)) xfer->hdr.poll_completion =3D true; =20 /* @@ -1956,7 +1938,8 @@ static bool scmi_is_transport_atomic(const struct scm= i_handle *handle, bool ret; struct scmi_info *info =3D handle_to_scmi_info(handle); =20 - ret =3D info->desc->atomic_enabled && is_transport_polling_capable(info); + ret =3D info->desc->atomic_enabled && + is_transport_polling_capable(info->desc); if (ret && atomic_threshold) *atomic_threshold =3D info->atomic_threshold; =20 @@ -2180,8 +2163,8 @@ static int scmi_chan_setup(struct scmi_info *info, st= ruct device_node *of_node, return ret; } =20 - if (tx && is_polling_required(cinfo, info)) { - if (is_transport_polling_capable(info)) + if (tx && is_polling_required(cinfo, info->desc)) { + if (is_transport_polling_capable(info->desc)) dev_info(&tdev->dev, "Enabled polling mode TX channel - prot_id:%d\n", prot_id); @@ -2443,7 +2426,8 @@ static int scmi_probe(struct platform_device *pdev) if (scmi_notification_init(handle)) dev_err(dev, "SCMI Notifications NOT available.\n"); =20 - if (info->desc->atomic_enabled && !is_transport_polling_capable(info)) + if (info->desc->atomic_enabled && + !is_transport_polling_capable(info->desc)) dev_err(dev, "Transport is not polling capable. Atomic mode not supported.\n"); =20 --=20 2.34.1