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authorJeffrey Hugo <jhugo@codeaurora.org>2018-12-13 15:43:40 -0700
committerStephen Boyd <sboyd@kernel.org>2018-12-14 13:41:03 -0800
commit12eced09cd301aa7b1868a67c50a651c2aacd363 (patch)
treecce56daffd0b88b24852949335d27990d7e0c492 /drivers
parenta1697aba2721bebd5af2a041b9c251ce9bf7631e (diff)
downloadlinux-12eced09cd301aa7b1868a67c50a651c2aacd363.tar.bz2
clk: qcom: Leave mmss noc on for 8998
Similar to other qcom targets, gcc_mmss_noc_cfg_ahb_clk should not be disabled. Any mmss access depends on this clock, and its been observed that enabling mmssnoc_axi_rpm_clk with rpmcc results in an implicit access to mmss and will crash the system if gcc_mmss_noc_cfg_ahb_clk is disabled. Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> Fixes: 4807c71cc688 (arm64: dts: Add msm8998 SoC and MTP board support) Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clk/qcom/gcc-msm8998.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clk/qcom/gcc-msm8998.c b/drivers/clk/qcom/gcc-msm8998.c
index f3c2ab4bf42a..b0c4b3874120 100644
--- a/drivers/clk/qcom/gcc-msm8998.c
+++ b/drivers/clk/qcom/gcc-msm8998.c
@@ -2027,6 +2027,12 @@ static struct clk_branch gcc_mmss_noc_cfg_ahb_clk = {
.hw.init = &(struct clk_init_data){
.name = "gcc_mmss_noc_cfg_ahb_clk",
.ops = &clk_branch2_ops,
+ /*
+ * Any access to mmss depends on this clock.
+ * Gating this clock has been shown to crash the system
+ * when mmssnoc_axi_rpm_clk is inited in rpmcc.
+ */
+ .flags = CLK_IS_CRITICAL,
},
},
};