linux-kernel - [PATCH v3 3/3] interconnect: qcom: Use icc_sync

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Message-Id: <20200825170152.6434-4-georgi.djakov@linaro.org>
Date:   Tue, 25 Aug 2020 20:01:52 +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 3/3] interconnect: qcom: Use icc_sync_state

Lowering the bandwidth on the bus might have negative consequences if
it's done before all consumers had a chance to cast their vote. Now by
default the framework sets the bandwidth to maximum during boot. We need
to use the icc_sync_state callback to notify the framework when all
consumers are probed and there is no need to keep the bandwidth set to
maximum anymore.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---
 drivers/interconnect/qcom/osm-l3.c | 1 +
 drivers/interconnect/qcom/sc7180.c | 1 +
 drivers/interconnect/qcom/sdm845.c | 1 +
 3 files changed, 3 insertions(+)

diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c
index 96fb9ff5ff2e..ae955f164442 100644
--- a/drivers/interconnect/qcom/osm-l3.c
+++ b/drivers/interconnect/qcom/osm-l3.c
@@ -268,6 +268,7 @@ static struct platform_driver osm_l3_driver = {
 	.driver = {
 		.name = "osm-l3",
 		.of_match_table = osm_l3_of_match,
+		.sync_state = icc_sync_state,
 	},
 };
 module_platform_driver(osm_l3_driver);
diff --git a/drivers/interconnect/qcom/sc7180.c b/drivers/interconnect/qcom/sc7180.c
index dcf493d07928..4c5d38649220 100644
--- a/drivers/interconnect/qcom/sc7180.c
+++ b/drivers/interconnect/qcom/sc7180.c
@@ -633,6 +633,7 @@ static struct platform_driver qnoc_driver = {
 	.driver = {
 		.name = "qnoc-sc7180",
 		.of_match_table = qnoc_of_match,
+		.sync_state = icc_sync_state,
 	},
 };
 module_platform_driver(qnoc_driver);
diff --git a/drivers/interconnect/qcom/sdm845.c b/drivers/interconnect/qcom/sdm845.c
index f6c7b969520d..6aa39aad2555 100644
--- a/drivers/interconnect/qcom/sdm845.c
+++ b/drivers/interconnect/qcom/sdm845.c
@@ -559,6 +559,7 @@ static struct platform_driver qnoc_driver = {
 	.driver = {
 		.name = "qnoc-sdm845",
 		.of_match_table = qnoc_of_match,
+		.sync_state = icc_sync_state,
 	},
 };
 module_platform_driver(qnoc_driver);