Patch "clk: thead: Add CLK_IGNORE_UNUSED to fix TH1520 boot" has been added to the 6.13-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    clk: thead: Add CLK_IGNORE_UNUSED to fix TH1520 boot

to the 6.13-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-thead-add-clk_ignore_unused-to-fix-th1520-boot.patch
and it can be found in the queue-6.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 23f19921f6e7b2d9214c7f635b00291f2c7915fc
Author: Drew Fustini <dfustini@xxxxxxxxxxxxxxx>
Date:   Mon Jan 13 12:31:25 2025 -0800

    clk: thead: Add CLK_IGNORE_UNUSED to fix TH1520 boot
    
    [ Upstream commit 037705e94bf6e1810b7f9dc077d0e23292229e74 ]
    
    Add the CLK_IGNORE_UNUSED flag to apb_pclk, cpu2peri_x2h_clk,
    perisys_apb2_hclk and perisys_apb3_hclk.
    
    Without this flag, the boot hangs after "clk: Disabling unused clocks"
    unless clk_ignore_unused is in the kernel cmdline.
    
    Fixes: ae81b69fd2b1 ("clk: thead: Add support for T-Head TH1520 AP_SUBSYS clocks")
    Signed-off-by: Drew Fustini <dfustini@xxxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20250113-th1520-clk_ignore_unused-v1-2-0b08fb813438@xxxxxxxxxxxxxxx
    Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/clk/thead/clk-th1520-ap.c b/drivers/clk/thead/clk-th1520-ap.c
index c95b6e26ca531..d02a18fed8a85 100644
--- a/drivers/clk/thead/clk-th1520-ap.c
+++ b/drivers/clk/thead/clk-th1520-ap.c
@@ -657,7 +657,7 @@ static struct ccu_div apb_pclk = {
 		.hw.init	= CLK_HW_INIT_PARENTS_DATA("apb-pclk",
 						      apb_parents,
 						      &ccu_div_ops,
-						      0),
+						      CLK_IGNORE_UNUSED),
 	},
 };
 
@@ -794,13 +794,13 @@ static CCU_GATE(CLK_X2X_CPUSYS, x2x_cpusys_clk, "x2x-cpusys", axi4_cpusys2_aclk_
 		0x134, BIT(7), 0);
 static CCU_GATE(CLK_CPU2AON_X2H, cpu2aon_x2h_clk, "cpu2aon-x2h", axi_aclk_pd, 0x138, BIT(8), 0);
 static CCU_GATE(CLK_CPU2PERI_X2H, cpu2peri_x2h_clk, "cpu2peri-x2h", axi4_cpusys2_aclk_pd,
-		0x140, BIT(9), 0);
+		0x140, BIT(9), CLK_IGNORE_UNUSED);
 static CCU_GATE(CLK_PERISYS_APB1_HCLK, perisys_apb1_hclk, "perisys-apb1-hclk", perisys_ahb_hclk_pd,
 		0x150, BIT(9), 0);
 static CCU_GATE(CLK_PERISYS_APB2_HCLK, perisys_apb2_hclk, "perisys-apb2-hclk", perisys_ahb_hclk_pd,
-		0x150, BIT(10), 0);
+		0x150, BIT(10), CLK_IGNORE_UNUSED);
 static CCU_GATE(CLK_PERISYS_APB3_HCLK, perisys_apb3_hclk, "perisys-apb3-hclk", perisys_ahb_hclk_pd,
-		0x150, BIT(11), 0);
+		0x150, BIT(11), CLK_IGNORE_UNUSED);
 static CCU_GATE(CLK_PERISYS_APB4_HCLK, perisys_apb4_hclk, "perisys-apb4-hclk", perisys_ahb_hclk_pd,
 		0x150, BIT(12), 0);
 static CCU_GATE(CLK_NPU_AXI, npu_axi_clk, "npu-axi", axi_aclk_pd, 0x1c8, BIT(5), 0);