[PATCH v11 08/11] firmware: xilinx: Add debugfs for query data API

[Jolly Shah]

From: Rajan Vaja <raj...@xilinx.com>

Add debugfs file to query platform specific data from firmware
using debugfs interface.

Signed-off-by: Rajan Vaja <raj...@xilinx.com>
Signed-off-by: Jolly Shah <jol...@xilinx.com>
---
 drivers/firmware/xilinx/zynqmp-debug.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/firmware/xilinx/zynqmp-debug.c 
b/drivers/firmware/xilinx/zynqmp-debug.c
index fc11db9..4532bd0 100644
--- a/drivers/firmware/xilinx/zynqmp-debug.c
+++ b/drivers/firmware/xilinx/zynqmp-debug.c
@@ -33,6 +33,7 @@ static char debugfs_buf[PAGE_SIZE];
 static struct pm_api_info pm_api_list[] = {
        PM_API(PM_GET_API_VERSION),
        PM_API(PM_IOCTL),
+       PM_API(PM_QUERY_DATA),
 };
 
 /**
@@ -105,6 +106,32 @@ static int process_api_request(u32 pm_id, u64 *pm_api_arg, 
u32 *pm_api_ret)
                        sprintf(debugfs_buf, "IOCTL return value: %u\n",
                                pm_api_ret[1]);
                break;
+       case PM_QUERY_DATA:
+       {
+               struct zynqmp_pm_query_data qdata = {0};
+
+               qdata.qid = pm_api_arg[0];
+               qdata.arg1 = pm_api_arg[1];
+               qdata.arg2 = pm_api_arg[2];
+               qdata.arg3 = pm_api_arg[3];
+
+               ret = eemi_ops->query_data(qdata, pm_api_ret);
+               if (ret)
+                       break;
+
+               if (qdata.qid == PM_QID_CLOCK_GET_NAME)
+                       sprintf(debugfs_buf, "Clock name = %s\n",
+                               (char *)pm_api_ret);
+               else if (qdata.qid == PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS)
+                       sprintf(debugfs_buf, "Multiplier = %d, Divider = %d\n",
+                               pm_api_ret[1], pm_api_ret[2]);
+               else
+                       sprintf(debugfs_buf,
+                               "data[0] = 0x%08x\ndata[1] = 0x%08x\n data[2] = 
0x%08x\ndata[3] = 0x%08x\n",
+                               pm_api_ret[0], pm_api_ret[1],
+                               pm_api_ret[2], pm_api_ret[3]);
+               break;
+       }
        default:
                sprintf(debugfs_buf, "Unsupported PM-API request\n");
                ret = -EINVAL;
-- 
2.7.4