[PATCH] clk: rockchip: rk3568: Add PCIe pipe clock gates

[Alexander Shiyan]

From: Shawn Lin <shawn.lin at rock-chips.com>

The PCIe pipe clocks are currently left as orphan clocks and remain
enabled indefinitely, which is suboptimal. Add the missing clock gates
so the PCIe driver can explicitly manage them when not in use. In order
not to break compatibility with old DTB, mark them as CLK_IGNORE_UNUSED.

Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
Link: https://patch.msgid.link/1772799641-32164-1-git-send-email-shawn.lin@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko at sntech.de>
Signed-off-by: Alexander Shiyan <eagle.alexander923 at gmail.com>
---
 drivers/clk/rockchip/clk-rk3568.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/clk/rockchip/clk-rk3568.c b/drivers/clk/rockchip/clk-rk3568.c
index 3b0cfdb865..12b3514afb 100644
--- a/drivers/clk/rockchip/clk-rk3568.c
+++ b/drivers/clk/rockchip/clk-rk3568.c
@@ -830,6 +830,8 @@ static struct rockchip_clk_branch rk3568_clk_branches[] __initdata = {
 			RK3568_CLKGATE_CON(12), 3, GFLAGS),
 	GATE(CLK_PCIE20_AUX_NDFT, "clk_pcie20_aux_ndft", "xin24m", 0,
 			RK3568_CLKGATE_CON(12), 4, GFLAGS),
+	GATE(CLK_PCIE20_PIPE_DFT, "clk_pcie20_pipe_dft", "aclk_pipe", CLK_IGNORE_UNUSED,
+			RK3568_CLKGATE_CON(12), 5, GFLAGS),
 	GATE(ACLK_PCIE30X1_MST, "aclk_pcie30x1_mst", "aclk_pipe", 0,
 			RK3568_CLKGATE_CON(12), 8, GFLAGS),
 	GATE(ACLK_PCIE30X1_SLV, "aclk_pcie30x1_slv", "aclk_pipe", 0,
@@ -840,6 +842,8 @@ static struct rockchip_clk_branch rk3568_clk_branches[] __initdata = {
 			RK3568_CLKGATE_CON(12), 11, GFLAGS),
 	GATE(CLK_PCIE30X1_AUX_NDFT, "clk_pcie30x1_aux_ndft", "xin24m", 0,
 			RK3568_CLKGATE_CON(12), 12, GFLAGS),
+	GATE(CLK_PCIE30X1_PIPE_DFT, "clk_pcie30x1_pipe_dft", "aclk_pipe", CLK_IGNORE_UNUSED,
+			RK3568_CLKGATE_CON(12), 13, GFLAGS),
 	GATE(ACLK_PCIE30X2_MST, "aclk_pcie30x2_mst", "aclk_pipe", 0,
 			RK3568_CLKGATE_CON(13), 0, GFLAGS),
 	GATE(ACLK_PCIE30X2_SLV, "aclk_pcie30x2_slv", "aclk_pipe", 0,
@@ -850,6 +854,8 @@ static struct rockchip_clk_branch rk3568_clk_branches[] __initdata = {
 			RK3568_CLKGATE_CON(13), 3, GFLAGS),
 	GATE(CLK_PCIE30X2_AUX_NDFT, "clk_pcie30x2_aux_ndft", "xin24m", 0,
 			RK3568_CLKGATE_CON(13), 4, GFLAGS),
+	GATE(CLK_PCIE30X2_PIPE_DFT, "clk_pcie30x2_pipe_dft", "aclk_pipe", CLK_IGNORE_UNUSED,
+			RK3568_CLKGATE_CON(13), 5, GFLAGS),
 	GATE(ACLK_SATA0, "aclk_sata0", "aclk_pipe", 0,
 			RK3568_CLKGATE_CON(11), 0, GFLAGS),
 	GATE(CLK_SATA0_PMALIVE, "clk_sata0_pmalive", "gpll_20m", 0,
-- 
2.52.0