This is a note to let you know that I've just added the patch titled
clk: qcom: gcc-x1e80100: Don't use parking clk_ops for QUPs
to the 6.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
clk-qcom-gcc-x1e80100-don-t-use-parking-clk_ops-for-.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f03bb152bb6dea2645f94c05fcd21a149aa9e336
Author: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
Date: Fri Aug 23 13:58:56 2024 +0100
clk: qcom: gcc-x1e80100: Don't use parking clk_ops for QUPs
[ Upstream commit ca082333b4356688be715ed9cc762fc5d3d5f4c5 ]
Per Stephen Boyd's explanation in the link below, QUP RCG clocks do not
need to be parked when switching frequency. A side-effect in parking to a
lower frequency can be a momentary invalid clock driven on an in-use serial
peripheral.
This can cause "junk" to spewed out of a UART as a low-impact example. On
the x1e80100-crd this serial port junk can be observed on linux-next.
Apply a similar fix to the x1e80100 Global Clock controller to remediate.
Link: https://lore.kernel.org/all/20240819233628.2074654-3-swboyd@xxxxxxxxxxxx/
Fixes: 161b7c401f4b ("clk: qcom: Add Global Clock controller (GCC) driver for X1E80100")
Fixes: 929c75d57566 ("clk: qcom: gcc-sm8550: Mark RCGs shared where applicable")
Suggested-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240823-x1e80100-clk-fix-v1-1-0b1b4f5a96e8@xxxxxxxxxx
Reviewed-by: Konrad Dybcio <konradybcio@xxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/clk/qcom/gcc-x1e80100.c b/drivers/clk/qcom/gcc-x1e80100.c
index 24f84c6705e5..52ea2a0888f3 100644
--- a/drivers/clk/qcom/gcc-x1e80100.c
+++ b/drivers/clk/qcom/gcc-x1e80100.c
@@ -670,7 +670,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s0_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s0_clk_src = {
@@ -687,7 +687,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s1_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s1_clk_src = {
@@ -719,7 +719,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s2_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s2_clk_src = {
@@ -736,7 +736,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s3_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s3_clk_src = {
@@ -768,7 +768,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s4_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s4_clk_src = {
@@ -785,7 +785,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s5_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s5_clk_src = {
@@ -802,7 +802,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s6_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s6_clk_src = {
@@ -819,7 +819,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s7_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap0_s7_clk_src = {
@@ -836,7 +836,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s0_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s0_clk_src = {
@@ -853,7 +853,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s1_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s1_clk_src = {
@@ -870,7 +870,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s2_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s2_clk_src = {
@@ -887,7 +887,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s3_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s3_clk_src = {
@@ -904,7 +904,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s4_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s4_clk_src = {
@@ -921,7 +921,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s5_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s5_clk_src = {
@@ -938,7 +938,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s6_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s6_clk_src = {
@@ -955,7 +955,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s7_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap1_s7_clk_src = {
@@ -972,7 +972,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s0_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s0_clk_src = {
@@ -989,7 +989,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s1_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s1_clk_src = {
@@ -1006,7 +1006,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s2_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s2_clk_src = {
@@ -1023,7 +1023,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s3_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s3_clk_src = {
@@ -1040,7 +1040,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s4_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s4_clk_src = {
@@ -1057,7 +1057,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s5_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s5_clk_src = {
@@ -1074,7 +1074,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s6_clk_src_init = {
.parent_data = gcc_parent_data_8,
.num_parents = ARRAY_SIZE(gcc_parent_data_8),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s6_clk_src = {
@@ -1091,7 +1091,7 @@ static struct clk_init_data gcc_qupv3_wrap2_s7_clk_src_init = {
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_ops,
};
static struct clk_rcg2 gcc_qupv3_wrap2_s7_clk_src = {
