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[v8,07/10] firmware: xilinx: Add debugfs for IOCTL API

Message ID 1529000862-11510-8-git-send-email-jollys@xilinx.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jolly Shah June 14, 2018, 6:27 p.m. UTC 
From: Rajan Vaja <rajanv@xilinx.com>

Add debugfs file to set/get IOCTL using debugfs interface.

Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
---
 drivers/firmware/xilinx/zynqmp-debug.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
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Patch

diff --git a/drivers/firmware/xilinx/zynqmp-debug.c b/drivers/firmware/xilinx/zynqmp-debug.c
index 4800366..148dbff 100644
--- a/drivers/firmware/xilinx/zynqmp-debug.c
+++ b/drivers/firmware/xilinx/zynqmp-debug.c
@@ -32,6 +32,7 @@  static char debugfs_buf[PAGE_SIZE];
 #define PM_API(id)		 {id, #id, strlen(#id)}
 static struct pm_api_info pm_api_list[] = {
 	PM_API(PM_GET_API_VERSION),
+	PM_API(PM_IOCTL),
 };
 
 /**
@@ -95,6 +96,15 @@  static int process_api_request(u32 pm_id, u64 *pm_api_arg, u32 *pm_api_ret)
 		sprintf(debugfs_buf, "PM-API Version = %d.%d\n",
 			pm_api_version >> 16, pm_api_version & 0xffff);
 		break;
+	case PM_IOCTL:
+		ret = eemi_ops->ioctl(pm_api_arg[0], pm_api_arg[1],
+				      pm_api_arg[2], pm_api_arg[3],
+				      &pm_api_ret[0]);
+		if (!ret && (pm_api_arg[1] == IOCTL_GET_PLL_FRAC_MODE ||
+			     pm_api_arg[1] == IOCTL_GET_PLL_FRAC_DATA))
+			sprintf(debugfs_buf, "IOCTL return value: %u\n",
+				pm_api_ret[1]);
+		break;
 	default:
 		sprintf(debugfs_buf, "Unsupported PM-API request\n");
 		ret = -EINVAL;