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Commit 59ecdd77 authored by Rajan Vaja's avatar Rajan Vaja Committed by Michal Simek
Browse files

firmware: xilinx: Add query data API 



Add ZynqMP firmware query data API to query platform
specific information(clocks, pins) from firmware.

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 76582671

drivers/firmware/xilinx/zynqmp.c

+14 −0
Original line number Diff line number Diff line
@@ -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,

};



/**

include/linux/firmware/xlnx-zynqmp.h

+20 −0
Original line number Diff line number Diff line
@@ -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)