Commit cc80d10d authored by Georgi Djakov's avatar Georgi Djakov
Browse files

interconnect: Add get_bw() callback 

The interconnect controller hardware may support querying the current
bandwidth settings, so add a callback for providers to implement this
functionality if supported.

Link: https://lore.kernel.org/r/20200825170152.6434-2-georgi.djakov@linaro.org


Reviewed-by: default avatarSaravana Kannan <saravanak@google.com>
Signed-off-by: default avatarGeorgi Djakov <georgi.djakov@linaro.org>
parent 91e045b9

include/linux/interconnect-provider.h

+2 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ struct icc_node *of_icc_xlate_onecell(struct of_phandle_args *spec, 
 * @aggregate: pointer to device specific aggregate operation function

 * @pre_aggregate: pointer to device specific function that is called

 *		   before the aggregation begins (optional)

 * @get_bw: pointer to device specific function to get current bandwidth

 * @xlate: provider-specific callback for mapping nodes from phandle arguments

 * @dev: the device this interconnect provider belongs to

 * @users: count of active users
@@ -51,6 +52,7 @@ struct icc_provider { 
	int (*aggregate)(struct icc_node *node, u32 tag, u32 avg_bw,

			 u32 peak_bw, u32 *agg_avg, u32 *agg_peak);

	void (*pre_aggregate)(struct icc_node *node);

	int (*get_bw)(struct icc_node *node, u32 *avg, u32 *peak);

	struct icc_node* (*xlate)(struct of_phandle_args *spec, void *data);

	struct device		*dev;

	int			users;

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