From patchwork Mon Nov 7 17:30:51 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanimir Varbanov X-Patchwork-Id: 81133 Delivered-To: patch@linaro.org Received: by 10.140.97.165 with SMTP id m34csp1128431qge; Mon, 7 Nov 2016 09:31:54 -0800 (PST) X-Received: by 10.99.178.6 with SMTP id x6mr12333021pge.63.1478539914308; Mon, 07 Nov 2016 09:31:54 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 15si32415809pgh.231.2016.11.07.09.31.54; Mon, 07 Nov 2016 09:31:54 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932901AbcKGRbs (ORCPT + 7 others); Mon, 7 Nov 2016 12:31:48 -0500 Received: from mail-wm0-f52.google.com ([74.125.82.52]:38122 "EHLO mail-wm0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932502AbcKGRbq (ORCPT ); Mon, 7 Nov 2016 12:31:46 -0500 Received: by mail-wm0-f52.google.com with SMTP id f82so132841650wmf.1 for ; Mon, 07 Nov 2016 09:31:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=S05+/VpaD5jDFqenllCArRCSB72iKdjWrPC7I3tCMxw=; b=VOv15VwLC6HN47xnUIIMuVpuVEF1iPPjf5pbONfeQVDA6IxgLKWZqcIqua2oc5tSrz SSrgV3vfn/7JdNeUHqyOSUj5iuUyLigQwmIEHfO6f1DtyvAjaAvP3y9IHcYJczGbgaEr qC3cDY8xnpVFSOx8wVUUUTO1UJYb4S6e7rCRc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=S05+/VpaD5jDFqenllCArRCSB72iKdjWrPC7I3tCMxw=; b=SCq1Mi/nYu3lWgSKz/26J4CuwwZnjFH233IXOrLuYheoxXzcILisNe5qg5G2KEsjnd RLrcU6vM1AKCd0o8yEtpNuW4QIk51Hss5BmtVNeUKcx+/FRbCigalLUb0V6UGbtwOxJq rx6lMx3BD11k5ilBmR+JYXxMfo2gDRkerKkJ+Rzyg0ZrHgcWq+RLTT4OdYGwfW6wV8xn 1jw44rzU3r1NSHIbcesqEugj6p923lGnBy2IglvB4nT4+t4+bP5wV6doBlIncakeFZC1 be23vde9uNrpw1s9Xdl1lHhw/T+oD9We3IFm4g2qKaCbybLuOeDaZIoOG/Yq195jDRB+ U0lg== X-Gm-Message-State: ABUngvdSeItZ2AarM0/QHZ5GunBpH+0Byjtm+Mk5wu1m6/tn0GhEeqtZBL8cE3Y+0r33aipD X-Received: by 10.28.236.205 with SMTP id h74mr9808430wmi.104.1478539905214; Mon, 07 Nov 2016 09:31:45 -0800 (PST) Received: from mms-0440.wifi.mm-sol.com ([37.157.136.206]) by smtp.gmail.com with ESMTPSA id f3sm14716803wmf.10.2016.11.07.09.31.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 07 Nov 2016 09:31:44 -0800 (PST) From: Stanimir Varbanov To: Ohad Ben-Cohen , Bjorn Andersson , Stephen Boyd , Andy Gross , Rob Herring , Mark Rutland Cc: Srinivas Kandagatla , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, devicetree@vger.kernel.org, Stanimir Varbanov Subject: [PATCH v2 1/3] firmware: qcom: scm: add a video command for state setting Date: Mon, 7 Nov 2016 19:30:51 +0200 Message-Id: <1478539853-23218-2-git-send-email-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1478539853-23218-1-git-send-email-stanimir.varbanov@linaro.org> References: <1478539853-23218-1-git-send-email-stanimir.varbanov@linaro.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This scm call is used to change the video core state, more specifically it is used to suspend and resume the core. Signed-off-by: Stanimir Varbanov --- drivers/firmware/qcom_scm-32.c | 18 ++++++++++++++++++ drivers/firmware/qcom_scm-64.c | 16 ++++++++++++++++ drivers/firmware/qcom_scm.c | 16 ++++++++++++++++ drivers/firmware/qcom_scm.h | 2 ++ include/linux/qcom_scm.h | 2 ++ 5 files changed, 54 insertions(+) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c index c6aeedbdcbb0..82c1d8d0d36b 100644 --- a/drivers/firmware/qcom_scm-32.c +++ b/drivers/firmware/qcom_scm-32.c @@ -560,3 +560,21 @@ int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) return ret ? : le32_to_cpu(out); } + +int __qcom_scm_video_set_state(struct device *dev, u32 state, u32 spare) +{ + struct { + __le32 state; + __le32 spare; + } req; + __le32 scm_ret = 0; + int ret; + + req.state = cpu_to_le32(state); + req.spare = cpu_to_le32(spare); + + ret = qcom_scm_call(dev, QCOM_SCM_SVC_BOOT, QCOM_SCM_VIDEO_SET_STATE, + &req, sizeof(req), &scm_ret, sizeof(scm_ret)); + + return ret ? : le32_to_cpu(scm_ret); +} diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c index 4a0f5ead4fb5..68484ea2aa51 100644 --- a/drivers/firmware/qcom_scm-64.c +++ b/drivers/firmware/qcom_scm-64.c @@ -358,3 +358,19 @@ int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) return ret ? : res.a1; } + +int __qcom_scm_video_set_state(struct device *dev, u32 state, u32 spare) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = state; + desc.args[1] = spare; + desc.arginfo = QCOM_SCM_ARGS(2); + + ret = qcom_scm_call(dev, QCOM_SCM_SVC_BOOT, QCOM_SCM_VIDEO_SET_STATE, + &desc, &res); + + return ret ? : res.a1; +} diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index d95c70227c05..7e364691a87c 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -320,6 +320,22 @@ bool qcom_scm_is_available(void) } EXPORT_SYMBOL(qcom_scm_is_available); +int qcom_scm_video_set_state(u32 state, u32 spare) +{ + int ret; + + ret = qcom_scm_clk_enable(); + if (ret) + return ret; + + ret = __qcom_scm_video_set_state(__scm->dev, state, spare); + + qcom_scm_clk_disable(); + + return ret; +} +EXPORT_SYMBOL(qcom_scm_video_set_state); + static int qcom_scm_probe(struct platform_device *pdev) { struct qcom_scm *scm; diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index 3584b00fe7e6..4830559b2639 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -15,6 +15,8 @@ #define QCOM_SCM_SVC_BOOT 0x1 #define QCOM_SCM_BOOT_ADDR 0x1 #define QCOM_SCM_BOOT_ADDR_MC 0x11 +#define QCOM_SCM_VIDEO_SET_STATE 0xa +extern int __qcom_scm_video_set_state(struct device *dev, u32 state, u32 spare); #define QCOM_SCM_FLAG_HLOS 0x01 #define QCOM_SCM_FLAG_COLDBOOT_MC 0x02 diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h index cc32ab852fbc..2ece81a6b078 100644 --- a/include/linux/qcom_scm.h +++ b/include/linux/qcom_scm.h @@ -46,4 +46,6 @@ extern void qcom_scm_cpu_power_down(u32 flags); extern u32 qcom_scm_get_version(void); +extern int qcom_scm_video_set_state(u32 state, u32 spare); + #endif