From 7e77a39265293ea4f05e20fff180755503c49918 Mon Sep 17 00:00:00 2001
From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Mon, 18 Dec 2023 17:02:06 +0100
Subject: [PATCH] clk: qcom: gcc-sm8550: use collapse-voting for PCIe GDSCs
The PCIe GDSCs can be shared with other masters and should use the APCS
collapse-vote register when updating the power state.
This is specifically also needed to be able to disable power domains
that have been enabled by boot firmware using the vote register.
Following other recent Qualcomm platforms, describe this register and
the corresponding mask for the PCIe (and _phy) GDSCs.
Fixes: 955f2ea3b9e9 ("clk: qcom: Add GCC driver for SM8550")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231218-topic-8550_fixes-v1-5-ce1272d77540@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
drivers/clk/qcom/gcc-sm8550.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/clk/qcom/gcc-sm8550.c b/drivers/clk/qcom/gcc-sm8550.c
index a16d07426b711..73bda0d03aa78 100644
--- a/drivers/clk/qcom/gcc-sm8550.c
+++ b/drivers/clk/qcom/gcc-sm8550.c
@@ -2998,6 +2998,8 @@ static struct clk_branch gcc_video_axi1_clk = {
static struct gdsc pcie_0_gdsc = {
.gdscr = 0x6b004,
+ .collapse_ctrl = 0x52020,
+ .collapse_mask = BIT(0),
.pd = {
.name = "pcie_0_gdsc",
},
@@ -3007,6 +3009,8 @@ static struct gdsc pcie_0_gdsc = {
static struct gdsc pcie_0_phy_gdsc = {
.gdscr = 0x6c000,
+ .collapse_ctrl = 0x52020,
+ .collapse_mask = BIT(3),
.pd = {
.name = "pcie_0_phy_gdsc",
},
@@ -3016,6 +3020,8 @@ static struct gdsc pcie_0_phy_gdsc = {
static struct gdsc pcie_1_gdsc = {
.gdscr = 0x8d004,
+ .collapse_ctrl = 0x52020,
+ .collapse_mask = BIT(1),
.pd = {
.name = "pcie_1_gdsc",
},
@@ -3025,6 +3031,8 @@ static struct gdsc pcie_1_gdsc = {
static struct gdsc pcie_1_phy_gdsc = {
.gdscr = 0x8e000,
+ .collapse_ctrl = 0x52020,
+ .collapse_mask = BIT(4),
.pd = {
.name = "pcie_1_phy_gdsc",
},
--
2.30.2