6.6-stable review patch. If anyone has any objections, please let me know.
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From: Konrad Dybcio konrad.dybcio@linaro.org
[ Upstream commit 7e77a39265293ea4f05e20fff180755503c49918 ]
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... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@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 a16d07426b71..73bda0d03aa7 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", },