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Wed, 04 Dec 2019 15:29:34 -0800 Received: from [127.0.0.1] (helo=localhost) by xsj-pvapsmtp01 with smtp (Exim 4.63) (envelope-from ) id 1ice5J-00080R-Rp; Wed, 04 Dec 2019 15:29:29 -0800 Received: from xsj-pvapsmtp01 (mailhost.xilinx.com [149.199.38.66]) by xsj-smtp-dlp2.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id xB4NTRV6024869; Wed, 4 Dec 2019 15:29:27 -0800 Received: from [172.19.2.91] (helo=xsjjollys50.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1ice5H-000802-Ig; Wed, 04 Dec 2019 15:29:27 -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 Subject: [PATCH 3/5] firmware: xilinx: Add system shutdown API interface Date: Wed, 4 Dec 2019 15:29:17 -0800 Message-Id: <1575502159-11327-4-git-send-email-jolly.shah@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1575502159-11327-1-git-send-email-jolly.shah@xilinx.com> References: <1575502159-11327-1-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; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR02MB2495 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191204_152941_707399_79D38221 X-CRM114-Status: GOOD ( 12.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jolly Shah , Rajan Vaja , rajanv@xilinx.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Rajan Vaja Add system shutdown API interface which asks firmware to perform system shutdown/restart. Signed-off-by: Michal Simek Signed-off-by: Rajan Vaja Signed-off-by: Jolly Shah --- drivers/firmware/xilinx/zynqmp.c | 14 ++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 4 +++- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 9836174..8dcf5a4 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -690,6 +690,19 @@ static int zynqmp_pm_config_reg_access(u32 register_access_id, u32 address, address, mask, value, out); } +/** + * 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 + */ +static int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype) +{ + return zynqmp_pm_invoke_fn(PM_SYSTEM_SHUTDOWN, type, subtype, + 0, 0, NULL); +} + static const struct zynqmp_eemi_ops eemi_ops = { .get_api_version = zynqmp_pm_get_api_version, .get_chipid = zynqmp_pm_get_chipid, @@ -714,6 +727,7 @@ static const struct zynqmp_eemi_ops eemi_ops = { .fpga_load = zynqmp_pm_fpga_load, .fpga_get_status = zynqmp_pm_fpga_get_status, .register_access = zynqmp_pm_config_reg_access, + .system_shutdown = zynqmp_pm_system_shutdown, }; /** diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index bf6e9db..b96ea5d 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -61,7 +61,8 @@ 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, @@ -322,6 +323,7 @@ struct zynqmp_eemi_ops { const enum zynqmp_pm_request_ack ack); int (*register_access)(u32 register_access_id, u32 address, u32 mask, u32 value, u32 *out); + int (*system_shutdown)(const u32 type, const u32 subtype); }; int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1, -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel