From: Jolly Shah <jolly.shah@xilinx.com>
To: <olof@lixom.net>, <michal.simek@xilinx.com>, <arm@kernel.org>
Cc: <rajanv@xilinx.com>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, Jolly Shah <jollys@xilinx.com>
Subject: [PATCH v12 3/6] firmware: xilinx: Add query data API
Date: Wed, 12 Sep 2018 12:38:37 -0700 [thread overview]
Message-ID: <1536781120-22794-4-git-send-email-jollys@xilinx.com> (raw)
In-Reply-To: <1536781120-22794-1-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 5bf64ac..2a333c0 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -241,8 +241,22 @@ static int get_set_conduit_method(struct device_node *np)
return 0;
}
+/**
+ * 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,
+ .query_data = zynqmp_pm_query_data,
};
/**
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index cb63bed..287f42c 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -34,6 +34,7 @@
enum pm_api_id {
PM_GET_API_VERSION = 1,
+ PM_QUERY_DATA = 35,
};
/* PMU-FW return status codes */
@@ -47,8 +48,27 @@ enum pm_ret_status {
XST_PM_ABORT_SUSPEND,
};
+enum pm_query_id {
+ PM_QID_INVALID,
+};
+
+/**
+ * struct zynqmp_pm_query_data - PM query data
+ * @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 (*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:[~2018-09-12 19:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-12 19:38 [PATCH v12 0/6] drivers: Introduce firmware driver for ZynqMP core Jolly Shah
2018-09-12 19:38 ` [PATCH v12 1/6] dt-bindings: firmware: Add bindings for ZynqMP firmware Jolly Shah
2018-09-12 19:38 ` [PATCH v12 2/6] firmware: xilinx: Add Zynqmp firmware driver Jolly Shah
2018-09-12 19:38 ` Jolly Shah [this message]
2018-09-12 19:38 ` [PATCH v12 4/6] firmware: xilinx: Add clock APIs Jolly Shah
2018-09-12 19:38 ` [PATCH v12 5/6] firmware: xilinx: Add debugfs interface Jolly Shah
2018-09-12 19:38 ` [PATCH v12 6/6] firmware: xilinx: Add debugfs for query data API Jolly Shah
2018-09-20 16:46 ` [PATCH v12 0/6] drivers: Introduce firmware driver for ZynqMP core Jolly Shah
2018-09-23 13:13 ` Olof Johansson
2018-09-24 18:21 ` Jolly Shah
2018-09-26 18:25 ` Jolly Shah
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