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(h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id a4-20020a05651c210400b002cc32fbe2e5sm2792867ljq.51.2023.12.28.03.42.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 03:42:10 -0800 (PST) From: Ulf Hansson To: "Rafael J . Wysocki" , Greg Kroah-Hartman , Viresh Kumar , linux-pm@vger.kernel.org Cc: Ulf Hansson , Sudeep Holla , Kevin Hilman , Konrad Dybcio , Bjorn Andersson , Nikunj Kela , Prasad Sodagudi , Stephan Gerhold , Ben Horgan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, linux-media@vger.kernel.org Subject: [PATCH 1/5] PM: domains: Add helper functions to attach/detach multiple PM domains Date: Thu, 28 Dec 2023 12:41:53 +0100 Message-Id: <20231228114157.104822-2-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231228114157.104822-1-ulf.hansson@linaro.org> References: <20231228114157.104822-1-ulf.hansson@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231228_034213_158247_7D24739F X-CRM114-Status: GOOD ( 28.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Attaching/detaching of a device to multiple PM domains has started to become a common operation for many drivers, typically during ->probe() and ->remove(). In most cases, this has lead to lots of boilerplate code in the drivers. To fixup up the situation, let's introduce a pair of helper functions, dev_pm_domain_attach|detach_list(), that driver can use instead of the open-coding. Note that, it seems reasonable to limit the support for these helpers to DT based platforms, at it's the only valid use case for now. Signed-off-by: Ulf Hansson --- drivers/base/power/common.c | 133 ++++++++++++++++++++++++++++++++++++ include/linux/pm_domain.h | 38 +++++++++++ 2 files changed, 171 insertions(+) diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c index 44ec20918a4d..1ef51889fc6f 100644 --- a/drivers/base/power/common.c +++ b/drivers/base/power/common.c @@ -167,6 +167,114 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev, } EXPORT_SYMBOL_GPL(dev_pm_domain_attach_by_name); +/** + * dev_pm_domain_attach_list - Associate a device with its PM domains. + * @dev: The device used to lookup the PM domains for. + * @data: The data used for attaching to the PM domains. + * @list: An out-parameter with an allocated list of attached PM domains. + * + * This function helps to attach a device to its multiple PM domains. The + * caller, which is typically a driver's probe function, may provide a list of + * names for the PM domains that we should try to attach the device to, but it + * may also provide an empty list, in case the attach should be done for all of + * the available PM domains. + * + * Callers must ensure proper synchronization of this function with power + * management callbacks. + * + * Returns the number of attached PM domains or a negative error code in case of + * a failure. Note that, to detach the list of PM domains, the driver shall call + * dev_pm_domain_detach_list(), typically during the remove phase. + */ +int dev_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list) +{ + struct device_node *np = dev->of_node; + struct dev_pm_domain_list *pds; + struct device *pd_dev = NULL; + int ret, i, num_pds = 0; + bool by_id = true; + u32 link_flags = data && data->pd_flags & PD_FLAG_NO_DEV_LINK ? 0 : + DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME; + + if (dev->pm_domain) + return -EEXIST; + + /* For now this is limited to OF based platforms. */ + if (!np) + return 0; + + if (data && data->pd_names) { + num_pds = data->num_pd_names; + by_id = false; + } else { + num_pds = of_count_phandle_with_args(np, "power-domains", + "#power-domain-cells"); + } + + if (num_pds <= 0) + return 0; + + pds = devm_kzalloc(dev, sizeof(*pds), GFP_KERNEL); + if (!pds) + return -ENOMEM; + + pds->pd_devs = devm_kcalloc(dev, num_pds, sizeof(*pds->pd_devs), + GFP_KERNEL); + if (!pds->pd_devs) + return -ENOMEM; + + pds->pd_links = devm_kcalloc(dev, num_pds, sizeof(*pds->pd_links), + GFP_KERNEL); + if (!pds->pd_links) + return -ENOMEM; + + if (link_flags && data->pd_flags & PD_FLAG_DEV_LINK_ON) + link_flags |= DL_FLAG_RPM_ACTIVE; + + for (i = 0; i < num_pds; i++) { + if (by_id) + pd_dev = dev_pm_domain_attach_by_id(dev, i); + else + pd_dev = dev_pm_domain_attach_by_name(dev, + data->pd_names[i]); + if (IS_ERR_OR_NULL(pd_dev)) { + ret = pd_dev ? PTR_ERR(pd_dev) : -ENODEV; + goto err_attach; + } + + if (link_flags) { + struct device_link *link; + + link = device_link_add(dev, pd_dev, link_flags); + if (!link) { + ret = -ENODEV; + goto err_link; + } + + pds->pd_links[i] = link; + } + + pds->pd_devs[i] = pd_dev; + } + + pds->num_pds = num_pds; + *list = pds; + return num_pds; + +err_link: + dev_pm_domain_detach(pd_dev, true); +err_attach: + while (--i >= 0) { + if (pds->pd_links[i]) + device_link_del(pds->pd_links[i]); + dev_pm_domain_detach(pds->pd_devs[i], true); + } + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_domain_attach_list); + /** * dev_pm_domain_detach - Detach a device from its PM domain. * @dev: Device to detach. @@ -187,6 +295,31 @@ void dev_pm_domain_detach(struct device *dev, bool power_off) } EXPORT_SYMBOL_GPL(dev_pm_domain_detach); +/** + * dev_pm_domain_detach_list - Detach a list of PM domains. + * @list: The list of PM domains to detach. + * + * This function reverse the actions from dev_pm_domain_attach_list(). + * Typically it should be invoked during the remove phase from drivers. + * + * Callers must ensure proper synchronization of this function with power + * management callbacks. + */ +void dev_pm_domain_detach_list(struct dev_pm_domain_list *list) +{ + int i; + + if (!list) + return; + + for (i = 0; i < list->num_pds; i++) { + if (list->pd_links[i]) + device_link_del(list->pd_links[i]); + dev_pm_domain_detach(list->pd_devs[i], true); + } +} +EXPORT_SYMBOL_GPL(dev_pm_domain_detach_list); + /** * dev_pm_domain_start - Start the device through its PM domain. * @dev: Device to start. diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 34663d0d5c55..6b71fb69c349 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -19,6 +19,33 @@ #include #include +/* + * Flags to control the behaviour when attaching a device to its PM domains. + * + * PD_FLAG_NO_DEV_LINK: As the default behaviour creates a device-link + * for every PM domain that gets attached, this + * flag can be used to skip that. + * + * PD_FLAG_DEV_LINK_ON: Add the DL_FLAG_RPM_ACTIVE to power-on the + * supplier and its PM domain when creating the + * device-links. + * + */ +#define PD_FLAG_NO_DEV_LINK BIT(0) +#define PD_FLAG_DEV_LINK_ON BIT(1) + +struct dev_pm_domain_attach_data { + const char * const *pd_names; + const u32 num_pd_names; + const u32 pd_flags; +}; + +struct dev_pm_domain_list { + struct device **pd_devs; + struct device_link **pd_links; + u32 num_pds; +}; + /* * Flags to control the behaviour of a genpd. * @@ -432,7 +459,11 @@ struct device *dev_pm_domain_attach_by_id(struct device *dev, unsigned int index); struct device *dev_pm_domain_attach_by_name(struct device *dev, const char *name); +int dev_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list); void dev_pm_domain_detach(struct device *dev, bool power_off); +void dev_pm_domain_detach_list(struct dev_pm_domain_list *list); int dev_pm_domain_start(struct device *dev); void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd); int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state); @@ -451,7 +482,14 @@ static inline struct device *dev_pm_domain_attach_by_name(struct device *dev, { return NULL; } +static inline int dev_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list) +{ + return 0; +} static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {} +static inline void dev_pm_domain_detach_list(struct dev_pm_domain_list *list) {} static inline int dev_pm_domain_start(struct device *dev) { return 0; From patchwork Thu Dec 28 11:41:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 13505953 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A6972C3DA6E for ; Thu, 28 Dec 2023 11:42:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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(h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id a4-20020a05651c210400b002cc32fbe2e5sm2792867ljq.51.2023.12.28.03.42.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 03:42:11 -0800 (PST) From: Ulf Hansson To: "Rafael J . Wysocki" , Greg Kroah-Hartman , Viresh Kumar , linux-pm@vger.kernel.org Cc: Ulf Hansson , Sudeep Holla , Kevin Hilman , Konrad Dybcio , Bjorn Andersson , Nikunj Kela , Prasad Sodagudi , Stephan Gerhold , Ben Horgan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, linux-media@vger.kernel.org, Mathieu Poirier , Shawn Guo , Sascha Hauer Subject: [PATCH 2/5] remoteproc: imx_dsp_rproc: Convert to dev_pm_domain_attach|detach_list() Date: Thu, 28 Dec 2023 12:41:54 +0100 Message-Id: <20231228114157.104822-3-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231228114157.104822-1-ulf.hansson@linaro.org> References: <20231228114157.104822-1-ulf.hansson@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231228_034213_915758_81B4D8F7 X-CRM114-Status: GOOD ( 19.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let's avoid the boilerplate code to manage the multiple PM domain case, by converting into using dev_pm_domain_attach|detach_list(). Cc: Mathieu Poirier Cc: Bjorn Andersson Cc: Shawn Guo Cc: Sascha Hauer Cc: Signed-off-by: Ulf Hansson --- drivers/remoteproc/imx_dsp_rproc.c | 82 ++++-------------------------- 1 file changed, 9 insertions(+), 73 deletions(-) diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c index 8fcda9b74545..0409b7c47d5c 100644 --- a/drivers/remoteproc/imx_dsp_rproc.c +++ b/drivers/remoteproc/imx_dsp_rproc.c @@ -103,12 +103,10 @@ enum imx_dsp_rp_mbox_messages { * @tx_ch: mailbox tx channel handle * @rx_ch: mailbox rx channel handle * @rxdb_ch: mailbox rx doorbell channel handle - * @pd_dev: power domain device - * @pd_dev_link: power domain device link + * @pd_list: power domain list * @ipc_handle: System Control Unit ipc handle * @rproc_work: work for processing virtio interrupts * @pm_comp: completion primitive to sync for suspend response - * @num_domains: power domain number * @flags: control flags */ struct imx_dsp_rproc { @@ -121,12 +119,10 @@ struct imx_dsp_rproc { struct mbox_chan *tx_ch; struct mbox_chan *rx_ch; struct mbox_chan *rxdb_ch; - struct device **pd_dev; - struct device_link **pd_dev_link; + struct dev_pm_domain_list *pd_list; struct imx_sc_ipc *ipc_handle; struct work_struct rproc_work; struct completion pm_comp; - int num_domains; u32 flags; }; @@ -954,74 +950,14 @@ static const struct rproc_ops imx_dsp_rproc_ops = { static int imx_dsp_attach_pm_domains(struct imx_dsp_rproc *priv) { struct device *dev = priv->rproc->dev.parent; - int ret, i; - - priv->num_domains = of_count_phandle_with_args(dev->of_node, - "power-domains", - "#power-domain-cells"); - - /* If only one domain, then no need to link the device */ - if (priv->num_domains <= 1) - return 0; - - priv->pd_dev = devm_kmalloc_array(dev, priv->num_domains, - sizeof(*priv->pd_dev), - GFP_KERNEL); - if (!priv->pd_dev) - return -ENOMEM; - - priv->pd_dev_link = devm_kmalloc_array(dev, priv->num_domains, - sizeof(*priv->pd_dev_link), - GFP_KERNEL); - if (!priv->pd_dev_link) - return -ENOMEM; - - for (i = 0; i < priv->num_domains; i++) { - priv->pd_dev[i] = dev_pm_domain_attach_by_id(dev, i); - if (IS_ERR(priv->pd_dev[i])) { - ret = PTR_ERR(priv->pd_dev[i]); - goto detach_pm; - } - - /* - * device_link_add will check priv->pd_dev[i], if it is - * NULL, then will break. - */ - priv->pd_dev_link[i] = device_link_add(dev, - priv->pd_dev[i], - DL_FLAG_STATELESS | - DL_FLAG_PM_RUNTIME); - if (!priv->pd_dev_link[i]) { - dev_pm_domain_detach(priv->pd_dev[i], false); - ret = -EINVAL; - goto detach_pm; - } - } - - return 0; - -detach_pm: - while (--i >= 0) { - device_link_del(priv->pd_dev_link[i]); - dev_pm_domain_detach(priv->pd_dev[i], false); - } - - return ret; -} - -static int imx_dsp_detach_pm_domains(struct imx_dsp_rproc *priv) -{ - int i; + int ret; - if (priv->num_domains <= 1) + /* A single PM domain is already attached. */ + if (dev->pm_domain) return 0; - for (i = 0; i < priv->num_domains; i++) { - device_link_del(priv->pd_dev_link[i]); - dev_pm_domain_detach(priv->pd_dev[i], false); - } - - return 0; + ret = dev_pm_domain_attach_list(dev, NULL, &priv->pd_list); + return ret < 0 ? ret : 0; } /** @@ -1153,7 +1089,7 @@ static int imx_dsp_rproc_probe(struct platform_device *pdev) return 0; err_detach_domains: - imx_dsp_detach_pm_domains(priv); + dev_pm_domain_detach_list(priv->pd_list); err_put_rproc: rproc_free(rproc); @@ -1167,7 +1103,7 @@ static void imx_dsp_rproc_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); rproc_del(rproc); - imx_dsp_detach_pm_domains(priv); + dev_pm_domain_detach_list(priv->pd_list); rproc_free(rproc); } From patchwork Thu Dec 28 11:41:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 13505956 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7A580C3DA6E for ; Thu, 28 Dec 2023 11:42:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=JCyKlzIfCagasUYB0zaJoi66z41A+VOyV5DVlW35m7A=; b=b+tV1Vl/FdKtHC UagRqISdKvAW3xp4J/v2T4rZwUQdXYWEOG6Kztt225BYYgecuxqdrfU4XKvz+VT2CkQhfiYZTrmOy ooVJzbb0f6WbGLgd6N+r2+3+JvrvYV9cIaq/5VblKyKpvc5UmUOfZ0/fZqthA39K2y0E6uDsDDM2P qJwvT/InVe9VOGxNc0WRnbXeJo2tOJziwrR4ZPkxXnsM0lHKqoZDq3gyvF2kO6S/VemNPCpEVlLAy YJybs7i0NwkaKLhDyq22Yn02rfu0ZmFOGb5dVixZJJ4zOO9R0x+zoJNHv0njPw/BgcSO/k6pLHW3W 0U0qSOaT5SiDV9vcEmDg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rIomO-00Gl9P-0R; Thu, 28 Dec 2023 11:42:24 +0000 Received: from mail-lj1-x22f.google.com ([2a00:1450:4864:20::22f]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rIomF-00Gl2K-0T for linux-arm-kernel@lists.infradead.org; Thu, 28 Dec 2023 11:42:16 +0000 Received: by mail-lj1-x22f.google.com with SMTP id 38308e7fff4ca-2ccbd9000f3so33514041fa.2 for ; Thu, 28 Dec 2023 03:42:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1703763734; x=1704368534; darn=lists.infradead.org; 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=hHvHY3P8pUAm5EVfyC69y/g7bbhD/gOrqJUHaYKsX0I=; b=OYe0lDHK20ijFtcm+e69ZPzCZqWAwiPM2nNoJe/WrS3gkoCsV5XATx2UIH/ukJhYJ3 Y45cB0L2JhZCUAUOKvai1ZsS1oS9SCMFlQxFXiXJNy//WQUlQQI2VI0I5zRxknc71keI 8uJidKeBoLEhP83DE4PhXaiX+a+soIdJBKBFK7PTfInrCWXVQTWlsOqzM/CcKipdW9Hr szV0RkS14gnllbu1+93tE3wUkSst8wujDOSjIbHuZQ5E4fk+lyNJ7l+EkdUpIlDve4Ho 8l5G45orJdWSz+A4UPrL89SDJNDozB+UKq+IRb6+kBt7OEuESkiwcbuey2fMujKjTl+s 0wjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703763734; x=1704368534; 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=hHvHY3P8pUAm5EVfyC69y/g7bbhD/gOrqJUHaYKsX0I=; b=VZCA9JoZdEsb0m+EMsXPQ6zWuP4qeKr5bBYBpnHUkmP8j9W9ub8cDoyLSa3VN0Zem9 Lb6HPRSn72IQw8o4JwOO1zf7LG7uDVxiI7gU+8bRrtCz0vinI0hUqBrGwrvn+/q0+xiy yIkk4VzKcSsInvHnr7MpXaF86KyGrTOwjLcX6tZTuNpirrpww9BwUXrS3mly4GPloH7s XU1IAQiPIaH5WsI6Ge5pGa3jeXjnKxsSTuWvjSZzPBnDi7LS6Jk87CnonD4Dp+c1U7iC oyCYIIAY+j5bRFp3cRmkvRoOTx/K+931oSVYrlDzvzusavUnQPytiJL2TjRHf43aSujZ HCHg== X-Gm-Message-State: AOJu0Yy9eNk10dilgiHdNGcNmZRYbNsrIbOhNytQX5qfWQ+ZfeNmmeJe XOpqLxOJ3vAOhTANKVleC6nlcaprcBVSXg== X-Google-Smtp-Source: AGHT+IGXEp1aTyhSpKGlmAS6ChNv5gUm/vZM9ehIRPavf1qH5PEPD14s2BsLvnJGjyIyvOSQ+DBl7g== X-Received: by 2002:a05:651c:486:b0:2cc:3fb2:82c with SMTP id s6-20020a05651c048600b002cc3fb2082cmr3350929ljc.75.1703763733742; Thu, 28 Dec 2023 03:42:13 -0800 (PST) Received: from uffe-tuxpro14.. (h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id a4-20020a05651c210400b002cc32fbe2e5sm2792867ljq.51.2023.12.28.03.42.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 03:42:12 -0800 (PST) From: Ulf Hansson To: "Rafael J . Wysocki" , Greg Kroah-Hartman , Viresh Kumar , linux-pm@vger.kernel.org Cc: Ulf Hansson , Sudeep Holla , Kevin Hilman , Konrad Dybcio , Bjorn Andersson , Nikunj Kela , Prasad Sodagudi , Stephan Gerhold , Ben Horgan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, linux-media@vger.kernel.org, Mathieu Poirier , Shawn Guo , Sascha Hauer Subject: [PATCH 3/5] remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list() Date: Thu, 28 Dec 2023 12:41:55 +0100 Message-Id: <20231228114157.104822-4-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231228114157.104822-1-ulf.hansson@linaro.org> References: <20231228114157.104822-1-ulf.hansson@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231228_034215_184204_A77054F4 X-CRM114-Status: GOOD ( 19.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let's avoid the boilerplate code to manage the multiple PM domain case, by converting into using dev_pm_domain_attach|detach_list(). Cc: Mathieu Poirier Cc: Bjorn Andersson Cc: Shawn Guo Cc: Sascha Hauer Cc: Signed-off-by: Ulf Hansson --- drivers/remoteproc/imx_rproc.c | 73 +++++----------------------------- 1 file changed, 9 insertions(+), 64 deletions(-) diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index 8bb293b9f327..3161f14442bc 100644 --- a/drivers/remoteproc/imx_rproc.c +++ b/drivers/remoteproc/imx_rproc.c @@ -92,7 +92,6 @@ struct imx_rproc_mem { static int imx_rproc_xtr_mbox_init(struct rproc *rproc); static void imx_rproc_free_mbox(struct rproc *rproc); -static int imx_rproc_detach_pd(struct rproc *rproc); struct imx_rproc { struct device *dev; @@ -113,10 +112,8 @@ struct imx_rproc { u32 rproc_pt; /* partition id */ u32 rsrc_id; /* resource id */ u32 entry; /* cpu start address */ - int num_pd; u32 core_index; - struct device **pd_dev; - struct device_link **pd_dev_link; + struct dev_pm_domain_list *pd_list; }; static const struct imx_rproc_att imx_rproc_att_imx93[] = { @@ -853,7 +850,7 @@ static void imx_rproc_put_scu(struct rproc *rproc) return; if (imx_sc_rm_is_resource_owned(priv->ipc_handle, priv->rsrc_id)) { - imx_rproc_detach_pd(rproc); + dev_pm_domain_detach_list(priv->pd_list); return; } @@ -880,72 +877,20 @@ static int imx_rproc_partition_notify(struct notifier_block *nb, static int imx_rproc_attach_pd(struct imx_rproc *priv) { struct device *dev = priv->dev; - int ret, i; - - /* - * If there is only one power-domain entry, the platform driver framework - * will handle it, no need handle it in this driver. - */ - priv->num_pd = of_count_phandle_with_args(dev->of_node, "power-domains", - "#power-domain-cells"); - if (priv->num_pd <= 1) - return 0; - - priv->pd_dev = devm_kmalloc_array(dev, priv->num_pd, sizeof(*priv->pd_dev), GFP_KERNEL); - if (!priv->pd_dev) - return -ENOMEM; - - priv->pd_dev_link = devm_kmalloc_array(dev, priv->num_pd, sizeof(*priv->pd_dev_link), - GFP_KERNEL); - - if (!priv->pd_dev_link) - return -ENOMEM; - - for (i = 0; i < priv->num_pd; i++) { - priv->pd_dev[i] = dev_pm_domain_attach_by_id(dev, i); - if (IS_ERR(priv->pd_dev[i])) { - ret = PTR_ERR(priv->pd_dev[i]); - goto detach_pd; - } - - priv->pd_dev_link[i] = device_link_add(dev, priv->pd_dev[i], DL_FLAG_STATELESS | - DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE); - if (!priv->pd_dev_link[i]) { - dev_pm_domain_detach(priv->pd_dev[i], false); - ret = -EINVAL; - goto detach_pd; - } - } - - return 0; - -detach_pd: - while (--i >= 0) { - device_link_del(priv->pd_dev_link[i]); - dev_pm_domain_detach(priv->pd_dev[i], false); - } - - return ret; -} - -static int imx_rproc_detach_pd(struct rproc *rproc) -{ - struct imx_rproc *priv = rproc->priv; - int i; + int ret; + struct dev_pm_domain_attach_data pd_data = { + .pd_flags = PD_FLAG_DEV_LINK_ON, + }; /* * If there is only one power-domain entry, the platform driver framework * will handle it, no need handle it in this driver. */ - if (priv->num_pd <= 1) + if (dev->pm_domain) return 0; - for (i = 0; i < priv->num_pd; i++) { - device_link_del(priv->pd_dev_link[i]); - dev_pm_domain_detach(priv->pd_dev[i], false); - } - - return 0; + ret = dev_pm_domain_attach_list(dev, &pd_data, &priv->pd_list); + return ret < 0 ? ret : 0; } static int imx_rproc_detect_mode(struct imx_rproc *priv) From patchwork Thu Dec 28 11:41:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 13505955 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A32F8C4706F for ; Thu, 28 Dec 2023 11:42:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=xXT2hx/66qsWw6mixcZ5xIwhr8TvuHOJGnEQ9lCY4Qc=; b=NGxwzCxCRYhveP WyI9i644YgNXEI2XtA5oejWgfmHymENXvoiVSruz9gXHPjcKBKojf3ui/IaHlpXRegDn0KLKgOIYf CVRYD8y2opXP1Eaddc2f6rtcWY6MornKU24gnlN6q5yJ+lkT20B9XnSoPKkjIPd3ZTWmcZT+Sh0Oa DfggNxsfHT3AdiaiF3S78SUtQ5qe2I/naPnRNNPv+EYxTX8+xSi7b1atcw44GM/Kb69Fnr7qVK3zI i0rC+w7HWLa+gSrnvXNlbcgloVV46HkVJQOpomjeGye6dc0XuDuq8vo8tUp41jyVmKQLfqRC8hcme TVM2n6hktwD1qYkfmVNg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rIomO-00GlAF-35; Thu, 28 Dec 2023 11:42:24 +0000 Received: from mail-lj1-x232.google.com ([2a00:1450:4864:20::232]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rIomH-00Gl3O-0w for linux-arm-kernel@lists.infradead.org; Thu, 28 Dec 2023 11:42:19 +0000 Received: by mail-lj1-x232.google.com with SMTP id 38308e7fff4ca-2cca664b0dfso53852311fa.0 for ; Thu, 28 Dec 2023 03:42:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1703763735; x=1704368535; darn=lists.infradead.org; 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=i3FlBOHoh3X86K5FPPTmro52+9jNs/yRfgRs08Ki48E=; b=uWu03en9KFtREFViiVqNgwFHDy0P0/y5mHA8NZjB1ub4FJjeoTxLSeXVTMbn2IPU/J HVMVuCFtVyj5Yn8ck0L71mrb536FHQQTgfCLOvVJLSgJXuhdQDkqLqrqYkslr21fS3rD LZUXCeNgOvR+UCgzNAFQmNqQPkoZqeUN64GYq/slMltc6dq9wuipbOe0c6l4uU9P9lw4 Dyp16Bg1sI/Kfn2p9cdOUDLy/uqIcayODirIjYl1i13g4/MPXmpSWB2/bCgWId8H9upH T5RZK0Pv+dQJpGvvB2QiYi5InufafwKcfMQbc6EA7bsEhNPuHtS9rup7XfvJ8OAxZPRr ybRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703763735; x=1704368535; 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=i3FlBOHoh3X86K5FPPTmro52+9jNs/yRfgRs08Ki48E=; b=ZRyv+ifkpI8pX5oaZCYTHNM9JIp6uXk10pB/WClmRKjePgKNGyyAEytq9D30mEReJe IxcuxrRPZgm3Om9/MdUxMNRXocRkaK6O/v+EmmfQbAKGJGob/I8ydJtvOtx10gwEqdOO Gkae0G1foASDeSywNM31gA0y7rUko7lRwre6gU1ks6qH8TatnglmaCFn5/3YwjJG+oi5 qCW0MWVhVjsPqJ+rUdE5kkaJRyNMzrCE+b0MwWXmKWzzNVFdGqG2qXdWH6QPRa47oA/W J/03oJhL9oyAflYk6QRWJLZpH72OVbuL7DJtlxbZ5u3fGrLG0lBB7682PWb4On7a8vAn 83BA== X-Gm-Message-State: AOJu0YxK9bB9EHtAbiauvGWYU/mMTK8k0hTTvYkGvizsG+JSKMGKdouw Pah2CK4U9glyWkLlvICd2WPUZNneIcn/bw== X-Google-Smtp-Source: AGHT+IGVZ8hWNXvrfNE70X7Tzg9v5HrhoLPMjz193w7XMyPoA6v7geDUjAC++VawGJf165HaIAkpjA== X-Received: by 2002:a05:651c:1994:b0:2cc:a6a8:f7d3 with SMTP id bx20-20020a05651c199400b002cca6a8f7d3mr5321971ljb.29.1703763735202; Thu, 28 Dec 2023 03:42:15 -0800 (PST) Received: from uffe-tuxpro14.. (h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id a4-20020a05651c210400b002cc32fbe2e5sm2792867ljq.51.2023.12.28.03.42.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 03:42:14 -0800 (PST) From: Ulf Hansson To: "Rafael J . Wysocki" , Greg Kroah-Hartman , Viresh Kumar , linux-pm@vger.kernel.org Cc: Ulf Hansson , Sudeep Holla , Kevin Hilman , Konrad Dybcio , Bjorn Andersson , Nikunj Kela , Prasad Sodagudi , Stephan Gerhold , Ben Horgan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, linux-media@vger.kernel.org, Mathieu Poirier Subject: [PATCH 4/5] remoteproc: qcom_q6v5_adsp: Convert to dev_pm_domain_attach|detach_list() Date: Thu, 28 Dec 2023 12:41:56 +0100 Message-Id: <20231228114157.104822-5-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231228114157.104822-1-ulf.hansson@linaro.org> References: <20231228114157.104822-1-ulf.hansson@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231228_034217_340403_E98FDCAD X-CRM114-Status: GOOD ( 23.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let's avoid some of the boilerplate code to manage the various PM domain cases, by converting into using dev_pm_domain_attach|detach_list(). As a part of the conversion, we are moving over to use device_links, which simplifies the runtime PM support too. Moreover, while attaching let's trust that an already attached single PM domain is the correct one. Cc: Mathieu Poirier Cc: Bjorn Andersson Cc: Konrad Dybcio Cc: Signed-off-by: Ulf Hansson --- drivers/remoteproc/qcom_q6v5_adsp.c | 160 +++++++++++++--------------- 1 file changed, 73 insertions(+), 87 deletions(-) diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c index 6c67514cc493..93f9a1537ec6 100644 --- a/drivers/remoteproc/qcom_q6v5_adsp.c +++ b/drivers/remoteproc/qcom_q6v5_adsp.c @@ -55,8 +55,6 @@ #define QDSP6SS_CORE_CBCR 0x20 #define QDSP6SS_SLEEP_CBCR 0x3c -#define QCOM_Q6V5_RPROC_PROXY_PD_MAX 3 - #define LPASS_BOOT_CORE_START BIT(0) #define LPASS_BOOT_CMD_START BIT(0) #define LPASS_EFUSE_Q6SS_EVB_SEL 0x0 @@ -74,7 +72,8 @@ struct adsp_pil_data { const char **clk_ids; int num_clks; - const char **proxy_pd_names; + const char **pd_names; + unsigned int num_pds; const char *load_state; }; @@ -110,8 +109,7 @@ struct qcom_adsp { size_t mem_size; bool has_iommu; - struct device *proxy_pds[QCOM_Q6V5_RPROC_PROXY_PD_MAX]; - size_t proxy_pd_count; + struct dev_pm_domain_list *pd_list; struct qcom_rproc_glink glink_subdev; struct qcom_rproc_ssr ssr_subdev; @@ -120,98 +118,92 @@ struct qcom_adsp { int (*shutdown)(struct qcom_adsp *adsp); }; -static int qcom_rproc_pds_attach(struct device *dev, struct qcom_adsp *adsp, - const char **pd_names) +static int qcom_rproc_pds_attach(struct qcom_adsp *adsp, const char **pd_names, + unsigned int num_pds) { - struct device **devs = adsp->proxy_pds; - size_t num_pds = 0; + struct device *dev = adsp->dev; + struct dev_pm_domain_attach_data pd_data = { + .pd_names = pd_names, + .num_pd_names = num_pds, + }; int ret; - int i; - - if (!pd_names) - return 0; /* Handle single power domain */ - if (dev->pm_domain) { - devs[0] = dev; - pm_runtime_enable(dev); - return 1; - } + if (dev->pm_domain) + goto out; - while (pd_names[num_pds]) - num_pds++; + if (!pd_names) + return 0; - if (num_pds > ARRAY_SIZE(adsp->proxy_pds)) - return -E2BIG; + ret = dev_pm_domain_attach_list(dev, &pd_data, &adsp->pd_list); + if (ret < 0) + return ret; - for (i = 0; i < num_pds; i++) { - devs[i] = dev_pm_domain_attach_by_name(dev, pd_names[i]); - if (IS_ERR_OR_NULL(devs[i])) { - ret = PTR_ERR(devs[i]) ? : -ENODATA; - goto unroll_attach; - } - } +out: + pm_runtime_enable(dev); + return 0; +} - return num_pds; +static void qcom_rproc_pds_detach(struct qcom_adsp *adsp) +{ + struct device *dev = adsp->dev; + struct dev_pm_domain_list *pds = adsp->pd_list; -unroll_attach: - for (i--; i >= 0; i--) - dev_pm_domain_detach(devs[i], false); + dev_pm_domain_detach_list(pds); - return ret; + if (dev->pm_domain || pds) + pm_runtime_disable(adsp->dev); } -static void qcom_rproc_pds_detach(struct qcom_adsp *adsp, struct device **pds, - size_t pd_count) +static int qcom_rproc_pds_enable(struct qcom_adsp *adsp) { struct device *dev = adsp->dev; - int i; + struct dev_pm_domain_list *pds = adsp->pd_list; + int ret, i = 0; - /* Handle single power domain */ - if (dev->pm_domain && pd_count) { - pm_runtime_disable(dev); - return; - } + if (!dev->pm_domain && !pds) + return 0; - for (i = 0; i < pd_count; i++) - dev_pm_domain_detach(pds[i], false); -} + if (dev->pm_domain) + dev_pm_genpd_set_performance_state(dev, INT_MAX); -static int qcom_rproc_pds_enable(struct qcom_adsp *adsp, struct device **pds, - size_t pd_count) -{ - int ret; - int i; - - for (i = 0; i < pd_count; i++) { - dev_pm_genpd_set_performance_state(pds[i], INT_MAX); - ret = pm_runtime_resume_and_get(pds[i]); - if (ret < 0) { - dev_pm_genpd_set_performance_state(pds[i], 0); - goto unroll_pd_votes; - } + while (pds && i < pds->num_pds) { + dev_pm_genpd_set_performance_state(pds->pd_devs[i], INT_MAX); + i++; } - return 0; + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) { + while (pds && i > 0) { + i--; + dev_pm_genpd_set_performance_state(pds->pd_devs[i], 0); + } -unroll_pd_votes: - for (i--; i >= 0; i--) { - dev_pm_genpd_set_performance_state(pds[i], 0); - pm_runtime_put(pds[i]); + if (dev->pm_domain) + dev_pm_genpd_set_performance_state(dev, 0); } return ret; } -static void qcom_rproc_pds_disable(struct qcom_adsp *adsp, struct device **pds, - size_t pd_count) +static void qcom_rproc_pds_disable(struct qcom_adsp *adsp) { - int i; + struct device *dev = adsp->dev; + struct dev_pm_domain_list *pds = adsp->pd_list; + int i = 0; + + if (!dev->pm_domain && !pds) + return; + + if (dev->pm_domain) + dev_pm_genpd_set_performance_state(dev, 0); - for (i = 0; i < pd_count; i++) { - dev_pm_genpd_set_performance_state(pds[i], 0); - pm_runtime_put(pds[i]); + while (pds && i < pds->num_pds) { + dev_pm_genpd_set_performance_state(pds->pd_devs[i], 0); + i++; } + + pm_runtime_put(dev); } static int qcom_wpss_shutdown(struct qcom_adsp *adsp) @@ -397,8 +389,7 @@ static int adsp_start(struct rproc *rproc) if (ret) goto adsp_smmu_unmap; - ret = qcom_rproc_pds_enable(adsp, adsp->proxy_pds, - adsp->proxy_pd_count); + ret = qcom_rproc_pds_enable(adsp); if (ret < 0) goto disable_xo_clk; @@ -448,7 +439,7 @@ static int adsp_start(struct rproc *rproc) disable_adsp_clks: clk_bulk_disable_unprepare(adsp->num_clks, adsp->clks); disable_power_domain: - qcom_rproc_pds_disable(adsp, adsp->proxy_pds, adsp->proxy_pd_count); + qcom_rproc_pds_disable(adsp); disable_xo_clk: clk_disable_unprepare(adsp->xo); adsp_smmu_unmap: @@ -464,7 +455,7 @@ static void qcom_adsp_pil_handover(struct qcom_q6v5 *q6v5) struct qcom_adsp *adsp = container_of(q6v5, struct qcom_adsp, q6v5); clk_disable_unprepare(adsp->xo); - qcom_rproc_pds_disable(adsp, adsp->proxy_pds, adsp->proxy_pd_count); + qcom_rproc_pds_disable(adsp); } static int adsp_stop(struct rproc *rproc) @@ -715,13 +706,11 @@ static int adsp_probe(struct platform_device *pdev) if (ret) goto free_rproc; - ret = qcom_rproc_pds_attach(adsp->dev, adsp, - desc->proxy_pd_names); + ret = qcom_rproc_pds_attach(adsp, desc->pd_names, desc->num_pds); if (ret < 0) { dev_err(&pdev->dev, "Failed to attach proxy power domains\n"); goto free_rproc; } - adsp->proxy_pd_count = ret; ret = adsp_init_reset(adsp); if (ret) @@ -753,7 +742,7 @@ static int adsp_probe(struct platform_device *pdev) return 0; disable_pm: - qcom_rproc_pds_detach(adsp, adsp->proxy_pds, adsp->proxy_pd_count); + qcom_rproc_pds_detach(adsp); free_rproc: rproc_free(rproc); @@ -771,7 +760,7 @@ static void adsp_remove(struct platform_device *pdev) qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev); qcom_remove_sysmon_subdev(adsp->sysmon); qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev); - qcom_rproc_pds_detach(adsp, adsp->proxy_pds, adsp->proxy_pd_count); + qcom_rproc_pds_detach(adsp); rproc_free(adsp->rproc); } @@ -788,9 +777,8 @@ static const struct adsp_pil_data adsp_resource_init = { "qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core", NULL }, .num_clks = 7, - .proxy_pd_names = (const char*[]) { - "cx", NULL - }, + .pd_names = (const char*[]) { "cx" }, + .num_pds = 1, }; static const struct adsp_pil_data adsp_sc7280_resource_init = { @@ -821,9 +809,8 @@ static const struct adsp_pil_data cdsp_resource_init = { "q6_axim", NULL }, .num_clks = 7, - .proxy_pd_names = (const char*[]) { - "cx", NULL - }, + .pd_names = (const char*[]) { "cx" }, + .num_pds = 1, }; static const struct adsp_pil_data wpss_resource_init = { @@ -839,9 +826,8 @@ static const struct adsp_pil_data wpss_resource_init = { "ahb_bdg", "ahb", "rscp", NULL }, .num_clks = 3, - .proxy_pd_names = (const char*[]) { - "cx", "mx", NULL - }, + .pd_names = (const char*[]) { "cx", "mx" }, + .num_pds = 2, }; 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Thu, 28 Dec 2023 03:42:16 -0800 (PST) Received: from uffe-tuxpro14.. (h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id a4-20020a05651c210400b002cc32fbe2e5sm2792867ljq.51.2023.12.28.03.42.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 03:42:16 -0800 (PST) From: Ulf Hansson To: "Rafael J . Wysocki" , Greg Kroah-Hartman , Viresh Kumar , linux-pm@vger.kernel.org Cc: Ulf Hansson , Sudeep Holla , Kevin Hilman , Konrad Dybcio , Bjorn Andersson , Nikunj Kela , Prasad Sodagudi , Stephan Gerhold , Ben Horgan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, linux-media@vger.kernel.org, Mauro Carvalho Chehab , Stanimir Varbanov , Vikash Garodia , "Bryan O'Donoghue" Subject: [PATCH 5/5] media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec Date: Thu, 28 Dec 2023 12:41:57 +0100 Message-Id: <20231228114157.104822-6-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231228114157.104822-1-ulf.hansson@linaro.org> References: <20231228114157.104822-1-ulf.hansson@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231228_034218_851696_79DA5ED1 X-CRM114-Status: GOOD ( 22.65 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let's avoid some of the boilerplate code to manage the vcodec PM domains, by converting into using dev_pm_domain_attach|detach_list(). Cc: Mauro Carvalho Chehab Cc: Stanimir Varbanov Cc: Vikash Garodia Cc: "Bryan O'Donoghue" Cc: Bjorn Andersson Cc: Konrad Dybcio Cc: Signed-off-by: Ulf Hansson Tested-by: Bryan O'Donoghue Reviewed-by: Bryan O'Donoghue --- drivers/media/platform/qcom/venus/core.c | 12 +++-- drivers/media/platform/qcom/venus/core.h | 7 ++- .../media/platform/qcom/venus/pm_helpers.c | 48 +++++++------------ 3 files changed, 26 insertions(+), 41 deletions(-) diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index 9cffe975581b..bd9b474280e4 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -114,7 +115,8 @@ static void venus_sys_error_handler(struct work_struct *work) pm_runtime_put_sync(core->dev); for (i = 0; i < max_attempts; i++) { - if (!core->pmdomains[0] || !pm_runtime_active(core->pmdomains[0])) + if (!core->pmdomains || + !pm_runtime_active(core->pmdomains->pd_devs[0])) break; usleep_range(1000, 1500); } @@ -705,7 +707,7 @@ static const struct venus_resources sdm845_res_v2 = { .vcodec0_clks = { "vcodec0_core", "vcodec0_bus" }, .vcodec1_clks = { "vcodec1_core", "vcodec1_bus" }, .vcodec_clks_num = 2, - .vcodec_pmdomains = { "venus", "vcodec0", "vcodec1" }, + .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" }, .vcodec_pmdomains_num = 3, .opp_pmdomain = (const char *[]) { "cx", NULL }, .vcodec_num = 2, @@ -754,7 +756,7 @@ static const struct venus_resources sc7180_res = { .clks_num = 3, .vcodec0_clks = { "vcodec0_core", "vcodec0_bus" }, .vcodec_clks_num = 2, - .vcodec_pmdomains = { "venus", "vcodec0" }, + .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" }, .vcodec_pmdomains_num = 2, .opp_pmdomain = (const char *[]) { "cx", NULL }, .vcodec_num = 1, @@ -811,7 +813,7 @@ static const struct venus_resources sm8250_res = { .resets_num = 2, .vcodec0_clks = { "vcodec0_core" }, .vcodec_clks_num = 1, - .vcodec_pmdomains = { "venus", "vcodec0" }, + .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" }, .vcodec_pmdomains_num = 2, .opp_pmdomain = (const char *[]) { "mx", NULL }, .vcodec_num = 1, @@ -870,7 +872,7 @@ static const struct venus_resources sc7280_res = { .clks_num = 3, .vcodec0_clks = {"vcodec_core", "vcodec_bus"}, .vcodec_clks_num = 2, - .vcodec_pmdomains = { "venus", "vcodec0" }, + .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" }, .vcodec_pmdomains_num = 2, .opp_pmdomain = (const char *[]) { "cx", NULL }, .vcodec_num = 1, diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index 4a633261ece4..7ef341bf21cc 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -25,7 +25,6 @@ #define VIDC_CLKS_NUM_MAX 4 #define VIDC_VCODEC_CLKS_NUM_MAX 2 -#define VIDC_PMDOMAINS_NUM_MAX 3 #define VIDC_RESETS_NUM_MAX 2 extern int venus_fw_debug; @@ -72,7 +71,7 @@ struct venus_resources { const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX]; const char * const vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX]; unsigned int vcodec_clks_num; - const char * const vcodec_pmdomains[VIDC_PMDOMAINS_NUM_MAX]; + const char **vcodec_pmdomains; unsigned int vcodec_pmdomains_num; const char **opp_pmdomain; unsigned int vcodec_num; @@ -134,7 +133,7 @@ struct venus_format { * @video_path: an interconnect handle to video to/from memory path * @cpucfg_path: an interconnect handle to cpu configuration path * @has_opp_table: does OPP table exist - * @pmdomains: an array of pmdomains struct device pointers + * @pmdomains: a pointer to a list of pmdomains * @opp_dl_venus: an device-link for device OPP * @opp_pmdomain: an OPP power-domain * @resets: an array of reset signals @@ -187,7 +186,7 @@ struct venus_core { struct icc_path *video_path; struct icc_path *cpucfg_path; bool has_opp_table; - struct device *pmdomains[VIDC_PMDOMAINS_NUM_MAX]; + struct dev_pm_domain_list *pmdomains; struct device_link *opp_dl_venus; struct device *opp_pmdomain; struct reset_control *resets[VIDC_RESETS_NUM_MAX]; diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index a1b127caa90a..502822059498 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -455,7 +455,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask) if (ret) return ret; - ret = pm_runtime_put_sync(core->pmdomains[1]); + ret = pm_runtime_put_sync(core->pmdomains->pd_devs[1]); if (ret < 0) return ret; } @@ -471,7 +471,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask) if (ret) return ret; - ret = pm_runtime_put_sync(core->pmdomains[2]); + ret = pm_runtime_put_sync(core->pmdomains->pd_devs[2]); if (ret < 0) return ret; } @@ -484,7 +484,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask) int ret; if (coreid_mask & VIDC_CORE_ID_1) { - ret = pm_runtime_get_sync(core->pmdomains[1]); + ret = pm_runtime_get_sync(core->pmdomains->pd_devs[1]); if (ret < 0) return ret; @@ -502,7 +502,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask) } if (coreid_mask & VIDC_CORE_ID_2) { - ret = pm_runtime_get_sync(core->pmdomains[2]); + ret = pm_runtime_get_sync(core->pmdomains->pd_devs[2]); if (ret < 0) return ret; @@ -860,19 +860,18 @@ static int vcodec_domains_get(struct venus_core *core) struct device **opp_virt_dev; struct device *dev = core->dev; const struct venus_resources *res = core->res; - struct device *pd; - unsigned int i; + struct dev_pm_domain_attach_data vcodec_data = { + .pd_names = res->vcodec_pmdomains, + .num_pd_names = res->vcodec_pmdomains_num, + .pd_flags = PD_FLAG_NO_DEV_LINK, + }; if (!res->vcodec_pmdomains_num) goto skip_pmdomains; - for (i = 0; i < res->vcodec_pmdomains_num; i++) { - pd = dev_pm_domain_attach_by_name(dev, - res->vcodec_pmdomains[i]); - if (IS_ERR_OR_NULL(pd)) - return pd ? PTR_ERR(pd) : -ENODATA; - core->pmdomains[i] = pd; - } + ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains); + if (ret < 0) + return ret; skip_pmdomains: if (!core->res->opp_pmdomain) @@ -896,30 +895,14 @@ static int vcodec_domains_get(struct venus_core *core) return 0; opp_attach_err: - for (i = 0; i < res->vcodec_pmdomains_num; i++) { - if (IS_ERR_OR_NULL(core->pmdomains[i])) - continue; - dev_pm_domain_detach(core->pmdomains[i], true); - } - + dev_pm_domain_detach_list(core->pmdomains); return ret; } static void vcodec_domains_put(struct venus_core *core) { - const struct venus_resources *res = core->res; - unsigned int i; + dev_pm_domain_detach_list(core->pmdomains); - if (!res->vcodec_pmdomains_num) - goto skip_pmdomains; - - for (i = 0; i < res->vcodec_pmdomains_num; i++) { - if (IS_ERR_OR_NULL(core->pmdomains[i])) - continue; - dev_pm_domain_detach(core->pmdomains[i], true); - } - -skip_pmdomains: if (!core->has_opp_table) return; @@ -1035,7 +1018,8 @@ static void core_put_v4(struct venus_core *core) static int core_power_v4(struct venus_core *core, int on) { struct device *dev = core->dev; - struct device *pmctrl = core->pmdomains[0]; + struct device *pmctrl = core->pmdomains ? + core->pmdomains->pd_devs[0] : NULL; int ret = 0; if (on == POWER_ON) {