diff mbox series

[3/3] clk: qcom: gcc-sc8280xp: use collapse-voting for PCIe GDSCs

Message ID 20220520100948.19622-4-johan+linaro@kernel.org
State Accepted
Commit 8d114b94fc39210b88b203b57aaf04836a87a4f0
Headers show
Series clk: qcom: gdsc: add support for collapse-vote registers | expand

Commit Message

Johan Hovold May 20, 2022, 10:09 a.m. UTC 
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.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/clk/qcom/gcc-sc8280xp.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
diff mbox series

Patch

diff --git a/drivers/clk/qcom/gcc-sc8280xp.c b/drivers/clk/qcom/gcc-sc8280xp.c
index 887db5324ab8..4d7db13ed708 100644
--- a/drivers/clk/qcom/gcc-sc8280xp.c
+++ b/drivers/clk/qcom/gcc-sc8280xp.c
@@ -6778,58 +6778,79 @@  static struct clk_branch gcc_video_vcodec_throttle_clk = {
 
 static struct gdsc pcie_0_tunnel_gdsc = {
 	.gdscr = 0xa4004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(0),
 	.pd = {
 		.name = "pcie_0_tunnel_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc pcie_1_tunnel_gdsc = {
 	.gdscr = 0x8d004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(1),
 	.pd = {
 		.name = "pcie_1_tunnel_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc pcie_2a_gdsc = {
 	.gdscr = 0x9d004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(2),
 	.pd = {
 		.name = "pcie_2a_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc pcie_2b_gdsc = {
 	.gdscr = 0x9e004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(3),
 	.pd = {
 		.name = "pcie_2b_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc pcie_3a_gdsc = {
 	.gdscr = 0xa0004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(4),
 	.pd = {
 		.name = "pcie_3a_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc pcie_3b_gdsc = {
 	.gdscr = 0xa2004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(5),
 	.pd = {
 		.name = "pcie_3b_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc pcie_4_gdsc = {
 	.gdscr = 0x6b004,
+	.collapse_ctrl = 0x52128,
+	.collapse_mask = BIT(6),
 	.pd = {
 		.name = "pcie_4_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
 };
 
 static struct gdsc ufs_card_gdsc = {