linux-kernel - [PATCH v3 1/3] interconnect: Add get

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Message-Id: <20200825170152.6434-2-georgi.djakov@linaro.org>
Date:   Tue, 25 Aug 2020 20:01:50 +0300
From:   Georgi Djakov <georgi.djakov@...aro.org>
To:     linux-pm@...r.kernel.org
Cc:     saravanak@...gle.com, mdtipton@...eaurora.org,
        okukatla@...eaurora.org, bjorn.andersson@...aro.org,
        vincent.guittot@...aro.org, akashast@...eaurora.org,
        georgi.djakov@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/3] 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.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---
 include/linux/interconnect-provider.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h
index 4735518de515..520f70fe5a31 100644
--- a/include/linux/interconnect-provider.h
+++ b/include/linux/interconnect-provider.h
@@ -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;