Unverified Commit 0a5e9769 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: SDCA: Parse XU Entity properties 



Parse the DisCo properties for XU Entities.

Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20251020155512.353774-11-ckeepax@opensource.cirrus.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c7b6c6b6

include/sound/sdca_function.h

+23 −0
Original line number Diff line number Diff line
@@ -1090,6 +1090,27 @@ struct sdca_entity_hide { 
	struct hid_descriptor hid_desc;

};



/**

 * enum sdca_xu_reset_machanism - SDCA FDL Resets

 */

enum sdca_xu_reset_mechanism {

	SDCA_XU_RESET_FUNCTION				= 0x0,

	SDCA_XU_RESET_DEVICE				= 0x1,

	SDCA_XU_RESET_BUS				= 0x2,

};



/**

 * struct sdca_entity_xu - information specific to XU Entities

 * @max_delay: the maximum time in microseconds allowed for the Device

 * to change the ownership from Device to Host

 * @reset_mechanism: indicates the type of reset that can be requested

 * the end of an FDL.

 */

struct sdca_entity_xu {

	unsigned int max_delay;

	enum sdca_xu_reset_mechanism reset_mechanism;

};



/**

 * struct sdca_entity - information for one SDCA Entity

 * @label: String such as "OT 12".
@@ -1106,6 +1127,7 @@ struct sdca_entity_hide { 
 * @pde: Power Domain Entity specific Entity properties.

 * @ge: Group Entity specific Entity properties.

 * @hide: HIDE Entity specific Entity properties.

 * @xu: XU Entity specific Entity properties.

 */

struct sdca_entity {

	const char *label;
@@ -1123,6 +1145,7 @@ struct sdca_entity { 
		struct sdca_entity_pde pde;

		struct sdca_entity_ge ge;

		struct sdca_entity_hide hide;

		struct sdca_entity_xu xu;

	};

};

sound/soc/sdca/sdca_functions.c

+25 −0
Original line number Diff line number Diff line
@@ -1398,6 +1398,28 @@ find_sdca_entity_hide(struct device *dev, struct sdw_slave *sdw, 
	return 0;

}



static int find_sdca_entity_xu(struct device *dev,

			       struct fwnode_handle *entity_node,

			       struct sdca_entity *entity)

{

	struct sdca_entity_xu *xu = &entity->xu;

	u32 tmp;

	int ret;



	ret = fwnode_property_read_u32(entity_node,

				       "mipi-sdca-RxUMP-ownership-transition-max-delay",

				       &tmp);

	if (!ret)

		xu->max_delay = tmp;



	ret = fwnode_property_read_u32(entity_node, "mipi-sdca-FDL-reset-mechanism",

				       &tmp);

	if (!ret)

		xu->reset_mechanism = tmp;



	return 0;

}



static int find_sdca_entity(struct device *dev, struct sdw_slave *sdw,

			    struct fwnode_handle *function_node,

			    struct fwnode_handle *entity_node,
@@ -1430,6 +1452,9 @@ static int find_sdca_entity(struct device *dev, struct sdw_slave *sdw, 
	case SDCA_ENTITY_TYPE_OT:

		ret = find_sdca_entity_iot(dev, entity_node, entity);

		break;

	case SDCA_ENTITY_TYPE_XU:

		ret = find_sdca_entity_xu(dev, entity_node, entity);

		break;

	case SDCA_ENTITY_TYPE_CS:

		ret = find_sdca_entity_cs(dev, entity_node, entity);

		break;