This is a note to let you know that I've just added the patch titled
clk: qcom: gcc-sm8350: fix PCIe PIPE clocks handling
to the 5.15-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-sm8350-fix-pcie-pipe-clocks-handling.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8e8f2a344abc5e4ab4664b9bab40794e2eb52e57
Author: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Date: Wed Apr 12 16:48:29 2023 +0300
clk: qcom: gcc-sm8350: fix PCIe PIPE clocks handling
[ Upstream commit 1a500e0bc97b6cb3c0d9859e81973b8dd07d1b7b ]
On SM8350 platform the PCIe PIPE clocks require additional handling to
function correctly. They are to be switched to the tcxo source before
turning PCIe GDSCs off and should be switched to PHY PIPE source once
they are working. Switch PCIe PHY clocks to use clk_regmap_phy_mux_ops,
which provide support for this dance.
Fixes: 44c20c9ed37f ("clk: qcom: gcc: Add clock driver for SM8350")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230412134829.3686467-1-dmitry.baryshkov@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/clk/qcom/gcc-sm8350.c b/drivers/clk/qcom/gcc-sm8350.c
index 6d0a9e2d51041..87d03b1684ed0 100644
--- a/drivers/clk/qcom/gcc-sm8350.c
+++ b/drivers/clk/qcom/gcc-sm8350.c
@@ -16,6 +16,7 @@
#include "clk-regmap.h"
#include "clk-regmap-divider.h"
#include "clk-regmap-mux.h"
+#include "clk-regmap-phy-mux.h"
#include "gdsc.h"
#include "reset.h"
@@ -166,26 +167,6 @@ static const struct clk_parent_data gcc_parent_data_3[] = {
{ .fw_name = "core_bi_pll_test_se" },
};
-static const struct parent_map gcc_parent_map_4[] = {
- { P_PCIE_0_PIPE_CLK, 0 },
- { P_BI_TCXO, 2 },
-};
-
-static const struct clk_parent_data gcc_parent_data_4[] = {
- { .fw_name = "pcie_0_pipe_clk", },
- { .fw_name = "bi_tcxo" },
-};
-
-static const struct parent_map gcc_parent_map_5[] = {
- { P_PCIE_1_PIPE_CLK, 0 },
- { P_BI_TCXO, 2 },
-};
-
-static const struct clk_parent_data gcc_parent_data_5[] = {
- { .fw_name = "pcie_1_pipe_clk" },
- { .fw_name = "bi_tcxo" },
-};
-
static const struct parent_map gcc_parent_map_6[] = {
{ P_BI_TCXO, 0 },
{ P_GCC_GPLL0_OUT_MAIN, 1 },
@@ -288,32 +269,30 @@ static const struct clk_parent_data gcc_parent_data_14[] = {
{ .fw_name = "bi_tcxo" },
};
-static struct clk_regmap_mux gcc_pcie_0_pipe_clk_src = {
+static struct clk_regmap_phy_mux gcc_pcie_0_pipe_clk_src = {
.reg = 0x6b054,
- .shift = 0,
- .width = 2,
- .parent_map = gcc_parent_map_4,
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "gcc_pcie_0_pipe_clk_src",
- .parent_data = gcc_parent_data_4,
- .num_parents = ARRAY_SIZE(gcc_parent_data_4),
- .ops = &clk_regmap_mux_closest_ops,
+ .parent_data = &(const struct clk_parent_data){
+ .fw_name = "pcie_0_pipe_clk",
+ },
+ .num_parents = 1,
+ .ops = &clk_regmap_phy_mux_ops,
},
},
};
-static struct clk_regmap_mux gcc_pcie_1_pipe_clk_src = {
+static struct clk_regmap_phy_mux gcc_pcie_1_pipe_clk_src = {
.reg = 0x8d054,
- .shift = 0,
- .width = 2,
- .parent_map = gcc_parent_map_5,
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "gcc_pcie_1_pipe_clk_src",
- .parent_data = gcc_parent_data_5,
- .num_parents = ARRAY_SIZE(gcc_parent_data_5),
- .ops = &clk_regmap_mux_closest_ops,
+ .parent_data = &(const struct clk_parent_data){
+ .fw_name = "pcie_1_pipe_clk",
+ },
+ .num_parents = 1,
+ .ops = &clk_regmap_phy_mux_ops,
},
},
};
