From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jolly Shah Subject: [PATCH v8 04/10] firmware: xilinx: Add query data API Date: Thu, 14 Jun 2018 11:27:36 -0700 Message-ID: <1529000862-11510-5-git-send-email-jollys@xilinx.com> References: <1529000862-11510-1-git-send-email-jollys@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1529000862-11510-1-git-send-email-jollys@xilinx.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org 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, mturquette@baylibre.com, sboyd@codeaurora.org, michal.simek@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-clk@vger.kernel.org Cc: devicetree@vger.kernel.org, rajanv@xilinx.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jolly Shah List-Id: devicetree@vger.kernel.org From: Rajan Vaja Add ZynqMP firmware query data API to query platform specific information(clocks, pins) from firmware. Signed-off-by: Rajan Vaja Signed-off-by: Jolly Shah --- drivers/firmware/xilinx/zynqmp.c | 14 ++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 20 ++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 34c5ad5..86d9bb8 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -260,9 +260,23 @@ static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, arg1, arg2, out); } +/** + * zynqmp_pm_query_data() - Get query data from firmware + * @qdata: Variable to the zynqmp_pm_query_data structure + * @out: Returned output value + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_query_data(struct zynqmp_pm_query_data qdata, u32 *out) +{ + return zynqmp_pm_invoke_fn(PM_QUERY_DATA, qdata.qid, qdata.arg1, + qdata.arg2, qdata.arg3, out); +} + static const struct zynqmp_eemi_ops eemi_ops = { .get_api_version = zynqmp_pm_get_api_version, .ioctl = zynqmp_pm_ioctl, + .query_data = zynqmp_pm_query_data, }; /** diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 2eec6e7..354385d 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -35,6 +35,7 @@ enum pm_api_id { PM_GET_API_VERSION = 1, PM_IOCTL = 34, + PM_QUERY_DATA, }; /* PMU-FW return status codes */ @@ -48,9 +49,28 @@ enum pm_ret_status { XST_PM_ABORT_SUSPEND, }; +enum pm_query_id { + PM_QID_INVALID, +}; + +/** + * struct zynqmp_pm_query_data - PM query data structure + * @qid: query ID + * @arg1: Argument 1 of query data + * @arg2: Argument 2 of query data + * @arg3: Argument 3 of query data + */ +struct zynqmp_pm_query_data { + u32 qid; + u32 arg1; + u32 arg2; + u32 arg3; +}; + struct zynqmp_eemi_ops { int (*get_api_version)(u32 *version); int (*ioctl)(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, u32 *out); + int (*query_data)(struct zynqmp_pm_query_data qdata, u32 *out); }; #if IS_REACHABLE(CONFIG_ARCH_ZYNQMP) -- 2.7.4