From patchwork Tue Sep 12 06:19:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AKASHI Takahiro X-Patchwork-Id: 721745 Delivered-To: patch@linaro.org Received: by 2002:adf:f64d:0:b0:31d:da82:a3b4 with SMTP id x13csp1476182wrp; Mon, 11 Sep 2023 23:21:29 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHKNuULyXAyUbWo80EE6hdT5sxI19dIHYGTJXf9suV5Vv+ftz40xeKsI47avQfF1AWUMH5f X-Received: by 2002:a05:600c:290a:b0:402:e6a2:c8c7 with SMTP id i10-20020a05600c290a00b00402e6a2c8c7mr10458883wmd.7.1694499689003; Mon, 11 Sep 2023 23:21:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694499688; cv=none; d=google.com; s=arc-20160816; b=st7zf/I5ZwBhcnvBDrBUW5N4X9RZ+RG7ec1ZWaK/FHR6VcEGviJReVflUODgVrP2bc ZFg/qMo5t2KO0M3Zsrn6xtvPxiiTqDnNwkmphTOa6E6glUUAMm7TpnWYuLq3g83jY7vT 9IsOgY1YeUSXkRC65hVLqOT3t9MC8/FzwW7KBsORh5BiOotWFcqyZpipi9dO03srswz3 tRYx/k82Ioc+U4RgO9VClrsj+n76kCXYAwXvkK68cvhCwPQXhslvD7AGc3yJeyXz/pRi miGQMPaHGJcReCUK2JX80+aWXXoIeNKWbknMbXcRD4pgoM4ORzLztudA0twRaI/s0zSS kpCQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=suOR8ml2BoYdJFj2jj49bSg3MWoPt2Rew0i5CAnocQo=; fh=+s9SE2w9oguEKAMcR35TXtqntCOeVFhiK9u/Kju91lo=; b=GXTUu6N1nTl7l7hC/C/1PGXnhOw2bHGvf6yza7FkOpaY0Y1XCq4MYeigNG1hdBDT1m Bwrf2Cl72Cfq3Rd+Cf2jW6b5hPFz6SIWrEknocPP/IGK3bYu4vyBsdP/a0I90NCuE0ZD 7FmIQTf5wmNkKP6g6d/IhZZAZK/ohjcp/gH5xkbGKirxz9Zx6BEY3VdNcbsOZvJne2rA HPPCqRtinp+8ecbWkd1CHC5k95uRrfYnx52bX0yqsCgqycifhAs/rvxfXpI8ah+CLDsT erf1ogSfJgXMrZxZbnec+3gomGI0bY6Q7Ow6/CNFr6KUbUt1kkOyQ5XSd5ZeAu1vRUwQ XJGQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=y3lh9FRN; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 85.214.62.61 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from phobos.denx.de (phobos.denx.de. [85.214.62.61]) by mx.google.com with ESMTPS id s15-20020a05600c384f00b003fbb00599desi6031219wmr.7.2023.09.11.23.21.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Sep 2023 23:21:28 -0700 (PDT) Received-SPF: pass (google.com: domain of u-boot-bounces@lists.denx.de designates 85.214.62.61 as permitted sender) client-ip=85.214.62.61; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=y3lh9FRN; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 85.214.62.61 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 3CF0C86E32; Tue, 12 Sep 2023 08:21:26 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="y3lh9FRN"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 12F2886E24; Tue, 12 Sep 2023 08:21:25 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id B38C186E20 for ; Tue, 12 Sep 2023 08:21:21 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=takahiro.akashi@linaro.org Received: by mail-pf1-x42a.google.com with SMTP id d2e1a72fcca58-68fee7789f5so20732b3a.0 for ; Mon, 11 Sep 2023 23:21:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1694499680; x=1695104480; darn=lists.denx.de; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=suOR8ml2BoYdJFj2jj49bSg3MWoPt2Rew0i5CAnocQo=; b=y3lh9FRNQ3KcZkdpaMovymg6/gbXscLH9jgwnm/onOQrzjn2nZrKZ8IToGx5eR2T3z wJDjp0J1Jpr0RPbtCfplLK5FBDq8KF3O1tsV1JyGSr9F2m5wLsbmdo7i8c13jnP0ZW0q KS9KOGFVnS/pAOT48RCyU4deLsgCfZcmEDvuh4LUeP9EafVT7XwyjEJLEYIJ1ZH+ZC7I u6Q1wnahWJ+Bte/H/7ojJInEpmCMrOrIylxSYBNiBlLKnqhZo9bbH+tAGfkBh9YEEzC8 hV8Fd+PzpcAZbXzGkOtukBMO+LVZ6cdHwMIW3679IMWA75ikwDCbVRN1t+RBxBwIPku3 RIew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694499680; x=1695104480; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=suOR8ml2BoYdJFj2jj49bSg3MWoPt2Rew0i5CAnocQo=; b=HWUK6WXdm6sU0+YU7RtXNDjHHTCJtxj2nvYFhj4chTCj96ogeMu58niqvOsfrPX1FT verrIWea2JLIItaHS3ro5nHcQ2WQmfSqCNlcHPHjBA5V3u4DOs88wDyeqMJE5NJamXH5 +EJMJY01oPVNWPD3Z5Ja/bveI2WwpSx7XJV7YoMZ1vzs7GlbMbrkMla+le7qE2Fzye+r WiJ1J6q3Q1X7GArxMhaCdkTgWjYYtkMkfVrJcFlbCwBhBksC+KT6nIp4UG6N9S7Cv3WE Bc1k3buXsLrul5T940G58U0gDrmbjNK4DIr+BXqHgHLFtGrz03ZLF7Tn8jZVUC2ZhxUK DgFA== X-Gm-Message-State: AOJu0YwFAMF7kYmiSOnKDLtSyOSY1sxH3k2GlEoDkX/W8+wsrWIrcd/i 6xe0HoXPgmzb7Di5K48WAvZKHQ== X-Received: by 2002:a05:6a20:4308:b0:13d:fff1:c672 with SMTP id h8-20020a056a20430800b0013dfff1c672mr15974402pzk.4.1694499679938; Mon, 11 Sep 2023 23:21:19 -0700 (PDT) Received: from octopus.. ([2400:4050:c3e1:100:bf3d:658b:e9f7:3af5]) by smtp.gmail.com with ESMTPSA id a15-20020a170902eccf00b001bc2831e1a8sm7503970plh.80.2023.09.11.23.21.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Sep 2023 23:21:19 -0700 (PDT) From: AKASHI Takahiro To: trini@konsulko.com, sjg@chromium.org Cc: etienne.carriere@st.com, u-boot@lists.denx.de, AKASHI Takahiro Subject: [PATCH v4 01/13] scmi: refactor the code to hide a channel from devices Date: Tue, 12 Sep 2023 15:19:50 +0900 Message-Id: <20230912062002.57361-2-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230912062002.57361-1-takahiro.akashi@linaro.org> References: <20230912062002.57361-1-takahiro.akashi@linaro.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean The commit 85dc58289238 ("firmware: scmi: prepare uclass to pass channel reference") added an explicit parameter, channel, but it seems to make the code complex. Hiding this parameter will allow for adding a generic (protocol-agnostic) helper function, i.e. for PROTOCOL_VERSION, in a later patch. Signed-off-by: AKASHI Takahiro Reviewed-by: Simon Glass --- v4 * revive scmi_bind_protocols which was accidentally removed * remove .per_child_auto from the driver declaration as it is not needed v3 * fix an issue on ST board (reported by Etienne) by taking care of cases where probed devices are children of SCMI protocol device (i.e. clock devices under CCF) See find_scmi_protocol_device(). * move "per_device_plato_auto" to a succeeding right patch v2 * new patch --- drivers/clk/clk_scmi.c | 27 ++---- drivers/firmware/scmi/scmi_agent-uclass.c | 105 ++++++++++++++++------ drivers/power/regulator/scmi_regulator.c | 26 ++---- drivers/reset/reset-scmi.c | 19 +--- include/scmi_agent.h | 15 ++-- 5 files changed, 104 insertions(+), 88 deletions(-) diff --git a/drivers/clk/clk_scmi.c b/drivers/clk/clk_scmi.c index d172fed24c9d..34a49363a51a 100644 --- a/drivers/clk/clk_scmi.c +++ b/drivers/clk/clk_scmi.c @@ -13,17 +13,8 @@ #include #include -/** - * struct scmi_clk_priv - Private data for SCMI clocks - * @channel: Reference to the SCMI channel to use - */ -struct scmi_clk_priv { - struct scmi_channel *channel; -}; - static int scmi_clk_get_num_clock(struct udevice *dev, size_t *num_clocks) { - struct scmi_clk_priv *priv = dev_get_priv(dev); struct scmi_clk_protocol_attr_out out; struct scmi_msg msg = { .protocol_id = SCMI_PROTOCOL_ID_CLOCK, @@ -33,7 +24,7 @@ static int scmi_clk_get_num_clock(struct udevice *dev, size_t *num_clocks) }; int ret; - ret = devm_scmi_process_msg(dev, priv->channel, &msg); + ret = devm_scmi_process_msg(dev, &msg); if (ret) return ret; @@ -44,7 +35,6 @@ static int scmi_clk_get_num_clock(struct udevice *dev, size_t *num_clocks) static int scmi_clk_get_attibute(struct udevice *dev, int clkid, char **name) { - struct scmi_clk_priv *priv = dev_get_priv(dev); struct scmi_clk_attribute_in in = { .clock_id = clkid, }; @@ -59,7 +49,7 @@ static int scmi_clk_get_attibute(struct udevice *dev, int clkid, char **name) }; int ret; - ret = devm_scmi_process_msg(dev, priv->channel, &msg); + ret = devm_scmi_process_msg(dev, &msg); if (ret) return ret; @@ -70,7 +60,6 @@ static int scmi_clk_get_attibute(struct udevice *dev, int clkid, char **name) static int scmi_clk_gate(struct clk *clk, int enable) { - struct scmi_clk_priv *priv = dev_get_priv(clk->dev); struct scmi_clk_state_in in = { .clock_id = clk->id, .attributes = enable, @@ -81,7 +70,7 @@ static int scmi_clk_gate(struct clk *clk, int enable) in, out); int ret; - ret = devm_scmi_process_msg(clk->dev, priv->channel, &msg); + ret = devm_scmi_process_msg(clk->dev, &msg); if (ret) return ret; @@ -100,7 +89,6 @@ static int scmi_clk_disable(struct clk *clk) static ulong scmi_clk_get_rate(struct clk *clk) { - struct scmi_clk_priv *priv = dev_get_priv(clk->dev); struct scmi_clk_rate_get_in in = { .clock_id = clk->id, }; @@ -110,7 +98,7 @@ static ulong scmi_clk_get_rate(struct clk *clk) in, out); int ret; - ret = devm_scmi_process_msg(clk->dev, priv->channel, &msg); + ret = devm_scmi_process_msg(clk->dev, &msg); if (ret < 0) return ret; @@ -123,7 +111,6 @@ static ulong scmi_clk_get_rate(struct clk *clk) static ulong scmi_clk_set_rate(struct clk *clk, ulong rate) { - struct scmi_clk_priv *priv = dev_get_priv(clk->dev); struct scmi_clk_rate_set_in in = { .clock_id = clk->id, .flags = SCMI_CLK_RATE_ROUND_CLOSEST, @@ -136,7 +123,7 @@ static ulong scmi_clk_set_rate(struct clk *clk, ulong rate) in, out); int ret; - ret = devm_scmi_process_msg(clk->dev, priv->channel, &msg); + ret = devm_scmi_process_msg(clk->dev, &msg); if (ret < 0) return ret; @@ -149,12 +136,11 @@ static ulong scmi_clk_set_rate(struct clk *clk, ulong rate) static int scmi_clk_probe(struct udevice *dev) { - struct scmi_clk_priv *priv = dev_get_priv(dev); struct clk *clk; size_t num_clocks, i; int ret; - ret = devm_scmi_of_get_channel(dev, &priv->channel); + ret = devm_scmi_of_get_channel(dev); if (ret) return ret; @@ -205,5 +191,4 @@ U_BOOT_DRIVER(scmi_clock) = { .id = UCLASS_CLK, .ops = &scmi_clk_ops, .probe = scmi_clk_probe, - .priv_auto = sizeof(struct scmi_clk_priv *), }; diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c index 02de692d66f3..75744cb35d7c 100644 --- a/drivers/firmware/scmi/scmi_agent-uclass.c +++ b/drivers/firmware/scmi/scmi_agent-uclass.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -110,18 +111,23 @@ static int scmi_bind_protocols(struct udevice *dev) return ret; } -static struct udevice *find_scmi_transport_device(struct udevice *dev) +static struct udevice *find_scmi_protocol_device(struct udevice *dev) { - struct udevice *parent = dev; + struct udevice *parent = NULL, *protocol; - do { - parent = dev_get_parent(parent); - } while (parent && device_get_uclass_id(parent) != UCLASS_SCMI_AGENT); + for (protocol = dev; protocol; protocol = parent) { + parent = dev_get_parent(protocol); + if (!parent || + device_get_uclass_id(parent) == UCLASS_SCMI_AGENT) + break; + } - if (!parent) + if (!parent) { dev_err(dev, "Invalid SCMI device, agent not found\n"); + return NULL; + } - return parent; + return protocol; } static const struct scmi_agent_ops *transport_dev_ops(struct udevice *dev) @@ -129,43 +135,90 @@ static const struct scmi_agent_ops *transport_dev_ops(struct udevice *dev) return (const struct scmi_agent_ops *)dev->driver->ops; } -int devm_scmi_of_get_channel(struct udevice *dev, struct scmi_channel **channel) +/** + * scmi_of_get_channel() - Get SCMI channel handle + * + * @dev: SCMI agent device + * @channel: Output reference to the SCMI channel upon success + * + * On return, @channel will be set. + * Return 0 on success and a negative errno on failure + */ +static int scmi_of_get_channel(struct udevice *dev, struct scmi_channel **channel) { - struct udevice *parent; + const struct scmi_agent_ops *ops; - parent = find_scmi_transport_device(dev); - if (!parent) + ops = transport_dev_ops(dev); + if (ops->of_get_channel) + return ops->of_get_channel(dev, channel); + else + return -EPROTONOSUPPORT; +} + +int devm_scmi_of_get_channel(struct udevice *dev) +{ + struct udevice *protocol; + struct scmi_agent_proto_priv *priv; + int ret; + + protocol = find_scmi_protocol_device(dev); + if (!protocol) return -ENODEV; - if (transport_dev_ops(parent)->of_get_channel) - return transport_dev_ops(parent)->of_get_channel(parent, channel); + priv = dev_get_parent_priv(protocol); + ret = scmi_of_get_channel(protocol->parent, &priv->channel); + if (ret == -EPROTONOSUPPORT) { + /* Drivers without a get_channel operator don't need a channel ref */ + priv->channel = NULL; - /* Drivers without a get_channel operator don't need a channel ref */ - *channel = NULL; + return 0; + } - return 0; + return ret; } -int devm_scmi_process_msg(struct udevice *dev, struct scmi_channel *channel, - struct scmi_msg *msg) +/** + * scmi_process_msg() - Send and process an SCMI message + * + * Send a message to an SCMI server. + * Caller sets scmi_msg::out_msg_sz to the output message buffer size. + * + * @dev: SCMI agent device + * @channel: Communication channel for the device + * @msg: Message structure reference + * + * On return, scmi_msg::out_msg_sz stores the response payload size. + * Return: 0 on success and a negative errno on failure + */ +static int scmi_process_msg(struct udevice *dev, struct scmi_channel *channel, + struct scmi_msg *msg) { const struct scmi_agent_ops *ops; - struct udevice *parent; - parent = find_scmi_transport_device(dev); - if (!parent) - return -ENODEV; + ops = transport_dev_ops(dev); + if (ops->process_msg) + return ops->process_msg(dev, channel, msg); + else + return -EPROTONOSUPPORT; +} - ops = transport_dev_ops(parent); +int devm_scmi_process_msg(struct udevice *dev, struct scmi_msg *msg) +{ + struct udevice *protocol; + struct scmi_agent_proto_priv *priv; - if (ops->process_msg) - return ops->process_msg(parent, channel, msg); + protocol = find_scmi_protocol_device(dev); + if (!protocol) + return -ENODEV; + + priv = dev_get_parent_priv(protocol); - return -EPROTONOSUPPORT; + return scmi_process_msg(protocol->parent, priv->channel, msg); } UCLASS_DRIVER(scmi_agent) = { .id = UCLASS_SCMI_AGENT, .name = "scmi_agent", .post_bind = scmi_bind_protocols, + .per_child_auto = sizeof(struct scmi_agent_proto_priv *), }; diff --git a/drivers/power/regulator/scmi_regulator.c b/drivers/power/regulator/scmi_regulator.c index 801148036ff6..9c72c35d039e 100644 --- a/drivers/power/regulator/scmi_regulator.c +++ b/drivers/power/regulator/scmi_regulator.c @@ -25,18 +25,9 @@ struct scmi_regulator_platdata { u32 domain_id; }; -/** - * struct scmi_regulator_priv - Private data for SCMI voltage regulator - * @channel: Reference to the SCMI channel to use - */ -struct scmi_regulator_priv { - struct scmi_channel *channel; -}; - static int scmi_voltd_set_enable(struct udevice *dev, bool enable) { struct scmi_regulator_platdata *pdata = dev_get_plat(dev); - struct scmi_regulator_priv *priv = dev_get_priv(dev); struct scmi_voltd_config_set_in in = { .domain_id = pdata->domain_id, .config = enable ? SCMI_VOLTD_CONFIG_ON : SCMI_VOLTD_CONFIG_OFF, @@ -47,7 +38,7 @@ static int scmi_voltd_set_enable(struct udevice *dev, bool enable) in, out); int ret; - ret = devm_scmi_process_msg(dev, priv->channel, &msg); + ret = devm_scmi_process_msg(dev, &msg); if (ret) return ret; @@ -57,7 +48,6 @@ static int scmi_voltd_set_enable(struct udevice *dev, bool enable) static int scmi_voltd_get_enable(struct udevice *dev) { struct scmi_regulator_platdata *pdata = dev_get_plat(dev); - struct scmi_regulator_priv *priv = dev_get_priv(dev); struct scmi_voltd_config_get_in in = { .domain_id = pdata->domain_id, }; @@ -67,7 +57,7 @@ static int scmi_voltd_get_enable(struct udevice *dev) in, out); int ret; - ret = devm_scmi_process_msg(dev, priv->channel, &msg); + ret = devm_scmi_process_msg(dev, &msg); if (ret < 0) return ret; @@ -80,7 +70,6 @@ static int scmi_voltd_get_enable(struct udevice *dev) static int scmi_voltd_set_voltage_level(struct udevice *dev, int uV) { - struct scmi_regulator_priv *priv = dev_get_priv(dev); struct scmi_regulator_platdata *pdata = dev_get_plat(dev); struct scmi_voltd_level_set_in in = { .domain_id = pdata->domain_id, @@ -92,7 +81,7 @@ static int scmi_voltd_set_voltage_level(struct udevice *dev, int uV) in, out); int ret; - ret = devm_scmi_process_msg(dev, priv->channel, &msg); + ret = devm_scmi_process_msg(dev, &msg); if (ret < 0) return ret; @@ -101,7 +90,6 @@ static int scmi_voltd_set_voltage_level(struct udevice *dev, int uV) static int scmi_voltd_get_voltage_level(struct udevice *dev) { - struct scmi_regulator_priv *priv = dev_get_priv(dev); struct scmi_regulator_platdata *pdata = dev_get_plat(dev); struct scmi_voltd_level_get_in in = { .domain_id = pdata->domain_id, @@ -112,7 +100,7 @@ static int scmi_voltd_get_voltage_level(struct udevice *dev) in, out); int ret; - ret = devm_scmi_process_msg(dev, priv->channel, &msg); + ret = devm_scmi_process_msg(dev, &msg); if (ret < 0) return ret; @@ -140,7 +128,6 @@ static int scmi_regulator_of_to_plat(struct udevice *dev) static int scmi_regulator_probe(struct udevice *dev) { struct scmi_regulator_platdata *pdata = dev_get_plat(dev); - struct scmi_regulator_priv *priv = dev_get_priv(dev); struct scmi_voltd_attr_in in = { 0 }; struct scmi_voltd_attr_out out = { 0 }; struct scmi_msg scmi_msg = { @@ -153,14 +140,14 @@ static int scmi_regulator_probe(struct udevice *dev) }; int ret; - ret = devm_scmi_of_get_channel(dev->parent, &priv->channel); + ret = devm_scmi_of_get_channel(dev); if (ret) return ret; /* Check voltage domain is known from SCMI server */ in.domain_id = pdata->domain_id; - ret = devm_scmi_process_msg(dev, priv->channel, &scmi_msg); + ret = devm_scmi_process_msg(dev, &scmi_msg); if (ret) { dev_err(dev, "Failed to query voltage domain %u: %d\n", pdata->domain_id, ret); @@ -184,7 +171,6 @@ U_BOOT_DRIVER(scmi_regulator) = { .probe = scmi_regulator_probe, .of_to_plat = scmi_regulator_of_to_plat, .plat_auto = sizeof(struct scmi_regulator_platdata), - .priv_auto = sizeof(struct scmi_regulator_priv *), }; static int scmi_regulator_bind(struct udevice *dev) diff --git a/drivers/reset/reset-scmi.c b/drivers/reset/reset-scmi.c index 122556162ec3..b76711f0a8fb 100644 --- a/drivers/reset/reset-scmi.c +++ b/drivers/reset/reset-scmi.c @@ -13,17 +13,8 @@ #include #include -/** - * struct scmi_reset_priv - Private data for SCMI reset controller - * @channel: Reference to the SCMI channel to use - */ -struct scmi_reset_priv { - struct scmi_channel *channel; -}; - static int scmi_reset_set_level(struct reset_ctl *rst, bool assert_not_deassert) { - struct scmi_reset_priv *priv = dev_get_priv(rst->dev); struct scmi_rd_reset_in in = { .domain_id = rst->id, .flags = assert_not_deassert ? SCMI_RD_RESET_FLAG_ASSERT : 0, @@ -35,7 +26,7 @@ static int scmi_reset_set_level(struct reset_ctl *rst, bool assert_not_deassert) in, out); int ret; - ret = devm_scmi_process_msg(rst->dev, priv->channel, &msg); + ret = devm_scmi_process_msg(rst->dev, &msg); if (ret) return ret; @@ -54,7 +45,6 @@ static int scmi_reset_deassert(struct reset_ctl *rst) static int scmi_reset_request(struct reset_ctl *rst) { - struct scmi_reset_priv *priv = dev_get_priv(rst->dev); struct scmi_rd_attr_in in = { .domain_id = rst->id, }; @@ -68,7 +58,7 @@ static int scmi_reset_request(struct reset_ctl *rst) * We don't really care about the attribute, just check * the reset domain exists. */ - ret = devm_scmi_process_msg(rst->dev, priv->channel, &msg); + ret = devm_scmi_process_msg(rst->dev, &msg); if (ret) return ret; @@ -83,9 +73,7 @@ static const struct reset_ops scmi_reset_domain_ops = { static int scmi_reset_probe(struct udevice *dev) { - struct scmi_reset_priv *priv = dev_get_priv(dev); - - return devm_scmi_of_get_channel(dev, &priv->channel); + return devm_scmi_of_get_channel(dev); } U_BOOT_DRIVER(scmi_reset_domain) = { @@ -93,5 +81,4 @@ U_BOOT_DRIVER(scmi_reset_domain) = { .id = UCLASS_RESET, .ops = &scmi_reset_domain_ops, .probe = scmi_reset_probe, - .priv_auto = sizeof(struct scmi_reset_priv *), }; diff --git a/include/scmi_agent.h b/include/scmi_agent.h index ee6286366df7..577892029ff8 100644 --- a/include/scmi_agent.h +++ b/include/scmi_agent.h @@ -15,6 +15,14 @@ struct udevice; struct scmi_channel; +/** + * struct scmi_agent_proto_priv - Private data in device for SCMI agent + * @channel: Reference to the SCMI channel to use + */ +struct scmi_agent_proto_priv { + struct scmi_channel *channel; +}; + /* * struct scmi_msg - Context of a SCMI message sent and the response received * @@ -49,10 +57,9 @@ struct scmi_msg { * devm_scmi_of_get_channel() - Get SCMI channel handle from SCMI agent DT node * * @dev: Device requesting a channel - * @channel: Output reference to the SCMI channel upon success * @return 0 on success and a negative errno on failure */ -int devm_scmi_of_get_channel(struct udevice *dev, struct scmi_channel **channel); +int devm_scmi_of_get_channel(struct udevice *dev); /** * devm_scmi_process_msg() - Send and process an SCMI message @@ -62,12 +69,10 @@ int devm_scmi_of_get_channel(struct udevice *dev, struct scmi_channel **channel) * On return, scmi_msg::out_msg_sz stores the response payload size. * * @dev: SCMI device - * @channel: Communication channel for the device * @msg: Message structure reference * Return: 0 on success and a negative errno on failure */ -int devm_scmi_process_msg(struct udevice *dev, struct scmi_channel *channel, - struct scmi_msg *msg); +int devm_scmi_process_msg(struct udevice *dev, struct scmi_msg *msg); /** * scmi_to_linux_errno() - Convert an SCMI error code into a Linux errno code