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 v9 03/10] firmware: xilinx: Add zynqmp IOCTL API for device control
Date: Wed, 20 Jun 2018 10:40:28 -0700 [thread overview]
Message-ID: <1529516435-7315-4-git-send-email-jollys@xilinx.com> (raw)
In-Reply-To: <1529516435-7315-1-git-send-email-jollys@xilinx.com>
From: Rajan Vaja <rajanv@xilinx.com>
Add ZynqMP firmware IOCTL API to control and configure
devices like PLLs, SD, Gem, etc.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
---
drivers/firmware/xilinx/zynqmp.c | 20 ++++++++++++++++++++
include/linux/firmware/xlnx-zynqmp.h | 2 ++
2 files changed, 22 insertions(+)
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 70e335a..34c5ad5 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -241,8 +241,28 @@ static int get_set_conduit_method(struct device_node *np)
return 0;
}
+/**
+ * zynqmp_pm_ioctl() - PM IOCTL API for device control and configs
+ * @node_id: Node ID of the device
+ * @ioctl_id: ID of the requested IOCTL
+ * @arg1: Argument 1 to requested IOCTL call
+ * @arg2: Argument 2 to requested IOCTL call
+ * @out: Returned output value
+ *
+ * This function calls IOCTL to firmware for device control and configuration.
+ *
+ * Return: Returns status, either success or error+reason
+ */
+static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2,
+ u32 *out)
+{
+ return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, ioctl_id,
+ arg1, arg2, out);
+}
+
static const struct zynqmp_eemi_ops eemi_ops = {
.get_api_version = zynqmp_pm_get_api_version,
+ .ioctl = zynqmp_pm_ioctl,
};
/**
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index cb63bed..2eec6e7 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_IOCTL = 34,
};
/* PMU-FW return status codes */
@@ -49,6 +50,7 @@ enum pm_ret_status {
struct zynqmp_eemi_ops {
int (*get_api_version)(u32 *version);
+ int (*ioctl)(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, u32 *out);
};
#if IS_REACHABLE(CONFIG_ARCH_ZYNQMP)
--
2.7.4
next prev parent reply other threads:[~2018-06-20 17:41 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-20 17:40 [PATCH v9 00/10] drivers: Introduce firmware dnd clock river for ZynqMP core Jolly Shah
2018-06-20 17:40 ` [PATCH v9 01/10] dt-bindings: firmware: Add bindings for ZynqMP firmware Jolly Shah
2018-06-20 17:40 ` [PATCH v9 02/10] firmware: xilinx: Add Zynqmp firmware driver Jolly Shah
2018-06-20 17:40 ` Jolly Shah [this message]
2018-06-20 17:40 ` [PATCH v9 04/10] firmware: xilinx: Add query data API Jolly Shah
2018-06-20 17:40 ` [PATCH v9 05/10] firmware: xilinx: Add clock APIs Jolly Shah
2018-07-09 5:31 ` Stephen Boyd
2018-06-20 17:40 ` [PATCH v9 06/10] firmware: xilinx: Add debugfs interface Jolly Shah
2018-06-20 17:40 ` [PATCH v9 07/10] firmware: xilinx: Add debugfs for IOCTL API Jolly Shah
2018-07-09 5:29 ` Stephen Boyd
2018-07-17 20:01 ` Jolly Shah
2018-06-20 17:40 ` [PATCH v9 08/10] firmware: xilinx: Add debugfs for query data API Jolly Shah
2018-06-20 17:40 ` [PATCH v9 09/10] dt-bindings: clock: Add bindings for ZynqMP clock driver Jolly Shah
2018-07-09 5:27 ` Stephen Boyd
2018-06-20 17:40 ` [PATCH v9 10/10] drivers: clk: Add " Jolly Shah
2018-07-09 5:26 ` Stephen Boyd
2018-07-17 20:09 ` Jolly Shah
2018-07-25 19:48 ` Stephen Boyd
2018-08-03 17:57 ` Jolly Shah
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