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Commit e60f02dd authored by Rajan Vaja's avatar Rajan Vaja Committed by Michal Simek
Browse files

firmware: xilinx: Add debugfs for query data API 



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

Signed-off-by: default avatarRajan Vaja <rajanv@xilinx.com>
Signed-off-by: default avatarJolly Shah <jollys@xilinx.com>
Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
parent b3217252

drivers/firmware/xilinx/zynqmp-debug.c

+28 −0
Original line number Diff line number Diff line
@@ -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_QUERY_DATA),

};



struct dentry *firmware_debugfs_root;
@@ -87,6 +88,7 @@ static int process_api_request(u32 pm_id, u64 *pm_api_arg, u32 *pm_api_ret) 
	const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops();

	u32 pm_api_version;

	int ret;

	struct zynqmp_pm_query_data qdata = {0};



	if (!eemi_ops)

		return -ENXIO;
@@ -97,6 +99,32 @@ 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_QUERY_DATA:

		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;



		switch (qdata.qid) {

		case PM_QID_CLOCK_GET_NAME:

			sprintf(debugfs_buf, "Clock name = %s\n",

				(char *)pm_api_ret);

			break;

		case PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS:

			sprintf(debugfs_buf, "Multiplier = %d, Divider = %d\n",

				pm_api_ret[1], pm_api_ret[2]);

			break;

		default:

			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;