linux-kernel - [PATCH 2/5] interconnect: qcom: msm8996: Provide UFS clocks to A2NoC

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Date:   Sat, 10 Dec 2022 21:03:50 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org, krzysztof.kozlowski@...aro.org
Cc:     marijn.suijten@...ainline.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Georgi Djakov <djakov@...nel.org>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] interconnect: qcom: msm8996: Provide UFS clocks to A2NoC

On eMMC devices the bootloader has no business enabling UFS clocks.
That results in a platform hang and hard reboot when trying to vote
on paths including MASTER_UFS and since sync_state guarantees that
it's done at boot time, this effectively prevents such devices from
booting. Fix that.

Fixes: 7add937f5222 ("interconnect: qcom: Add MSM8996 interconnect provider driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/interconnect/qcom/msm8996.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/interconnect/qcom/msm8996.c b/drivers/interconnect/qcom/msm8996.c
index c2903ae3b3bc..7ddb1f23fb2a 100644
--- a/drivers/interconnect/qcom/msm8996.c
+++ b/drivers/interconnect/qcom/msm8996.c
@@ -33,6 +33,13 @@ static const char * const bus_a0noc_clocks[] = {
 	"aggre0_noc_mpu_cfg"
 };
 
+static const char * const bus_a2noc_clocks[] = {
+	"bus",
+	"bus_a",
+	"aggre2_ufs_axi",
+	"ufs_axi"
+};
+
 static const u16 mas_a0noc_common_links[] = {
 	MSM8996_SLAVE_A0NOC_SNOC
 };
@@ -1859,6 +1866,8 @@ static const struct qcom_icc_desc msm8996_a2noc = {
 	.type = QCOM_ICC_NOC,
 	.nodes = a2noc_nodes,
 	.num_nodes = ARRAY_SIZE(a2noc_nodes),
+	.clocks = bus_a2noc_clocks,
+	.num_clocks = ARRAY_SIZE(bus_a2noc_clocks),
 	.regmap_cfg = &msm8996_a2noc_regmap_config
 };
 
-- 
2.38.1