From: Jolly Shah <jolly.shah@xilinx.com>
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: <rajanv@xilinx.com>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
Jolly Shah <jollys@xilinx.com>
Subject: [PATCH v7 04/10] firmware: xilinx: Add query data API
Date: Wed, 30 May 2018 13:55:19 -0700 [thread overview]
Message-ID: <1527713725-1086-5-git-send-email-jollys@xilinx.com> (raw)
In-Reply-To: <1527713725-1086-1-git-send-email-jollys@xilinx.com>
From: Rajan Vaja <rajanv@xilinx.com>
Add ZynqMP firmware query data API to query platform
specific information(clocks, pins) from firmware.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
---
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
next prev parent reply other threads:[~2018-05-30 20:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-30 20:55 [PATCH v7 00/10] drivers: Introduce firmware dnd clock river for ZynqMP core Jolly Shah
2018-05-30 20:55 ` [PATCH v7 01/10] dt-bindings: firmware: Add bindings for ZynqMP firmware Jolly Shah
2018-05-30 20:55 ` [PATCH v7 02/10] firmware: xilinx: Add Zynqmp firmware driver Jolly Shah
2018-05-30 20:55 ` [PATCH v7 03/10] firmware: xilinx: Add zynqmp IOCTL API for device control Jolly Shah
2018-05-30 20:55 ` Jolly Shah [this message]
2018-05-30 20:55 ` [PATCH v7 05/10] firmware: xilinx: Add clock APIs Jolly Shah
2018-05-30 20:55 ` [PATCH v7 06/10] firmware: xilinx: Add debugfs interface Jolly Shah
2018-05-30 20:55 ` [PATCH v7 07/10] firmware: xilinx: Add debugfs for IOCTL API Jolly Shah
2018-05-30 20:55 ` [PATCH v7 08/10] firmware: xilinx: Add debugfs for query data API Jolly Shah
2018-05-30 20:55 ` [PATCH v7 09/10] dt-bindings: clock: Add bindings for ZynqMP clock driver Jolly Shah
2018-05-30 20:55 ` [PATCH v7 10/10] drivers: clk: Add " Jolly Shah
2018-05-30 21:17 ` Randy Dunlap
2018-06-14 18:30 ` Jolly Shah
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