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Fri, 06 Mar 2020 15:47:53 -0800 Received: from xsj-pvapsmtp01 (smtp3.xilinx.com [149.199.38.66]) by xsj-smtp-dlp1.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id 026NllQT002428; Fri, 6 Mar 2020 15:47:47 -0800 Received: from [172.19.2.91] (helo=xsjjollys50.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1jAMh0-0002eg-Ul; Fri, 06 Mar 2020 15:47:46 -0800 From: Jolly Shah To: ard.biesheuvel@linaro.org, mingo@kernel.org, gregkh@linuxfoundation.org, matt@codeblueprint.co.uk, sudeep.holla@arm.com, hkallweit1@gmail.com, keescook@chromium.org, dmitry.torokhov@gmail.com, michal.simek@xilinx.com Cc: rajanv@xilinx.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rajan Vaja , Jolly Shah , Jolly Shah Subject: [PATCH v3 22/24] firmware: xilinx: Add system shutdown API interface Date: Fri, 6 Mar 2020 15:47:30 -0800 Message-Id: <1583538452-1992-23-git-send-email-jolly.shah@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1583538452-1992-1-git-send-email-jolly.shah@xilinx.com> References: <1583538452-1992-1-git-send-email-jolly.shah@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83;IPV:;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(4636009)(376002)(396003)(346002)(39860400002)(136003)(199004)(189003)(186003)(5660300002)(70206006)(26005)(478600001)(336012)(70586007)(107886003)(7696005)(6636002)(2616005)(8676002)(8936002)(9786002)(81156014)(81166006)(54906003)(316002)(426003)(6666004)(4326008)(356004)(2906002)(36756003)(44832011)(7416002);DIR:OUT;SFP:1101;SCL:1;SRVR:DM6PR02MB4777;H:xsj-pvapsmtpgw01;FPR:;SPF:Pass;LANG:en;PTR:unknown-60-83.xilinx.com;A:1;MX:1; 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Signed-off-by: Rajan Vaja Signed-off-by: Michal Simek Signed-off-by: Jolly Shah Signed-off-by: Jolly Shah --- drivers/firmware/xilinx/zynqmp.c | 13 +++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 4 +++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index f671b6b..d3f637b 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -834,6 +834,19 @@ int zynqmp_pm_set_requirement(const u32 node, const u32 capabilities, EXPORT_SYMBOL_GPL(zynqmp_pm_set_requirement); /** + * zynqmp_pm_system_shutdown - PM call to request a system shutdown or restart + * @type: Shutdown or restart? 0 for shutdown, 1 for restart + * @subtype: Specifies which system should be restarted or shut down + * + * Return: Returns status, either success or error+reason + */ +int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype) +{ + return zynqmp_pm_invoke_fn(PM_SYSTEM_SHUTDOWN, type, subtype, + 0, 0, NULL); +} + +/** * ggs_show - Show global general storage (ggs) sysfs attribute * @device: Device structure * @attr: Device attribute structure diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 8ccaa39..13b9fdb 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -66,7 +66,8 @@ enum pm_api_id { PM_GET_API_VERSION = 1, - PM_REQUEST_NODE = 13, + PM_SYSTEM_SHUTDOWN = 12, + PM_REQUEST_NODE, PM_RELEASE_NODE, PM_SET_REQUIREMENT, PM_RESET_ASSERT = 17, @@ -327,6 +328,7 @@ int zynqmp_pm_write_ggs(u32 index, u32 value); int zynqmp_pm_read_ggs(u32 index, u32 *value); int zynqmp_pm_write_pggs(u32 index, u32 value); int zynqmp_pm_read_pggs(u32 index, u32 *value); +int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype); int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 *ret_payload); -- 2.7.4