diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-5.15/320-ARM-dts-BCM5301X-Switch-back-to-old-clock-nodes-name.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-5.15/320-ARM-dts-BCM5301X-Switch-back-to-old-clock-nodes-name.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-5.15/320-ARM-dts-BCM5301X-Switch-back-to-old-clock-nodes-name.patch b/target/linux/bcm53xx/patches-5.15/320-ARM-dts-BCM5301X-Switch-back-to-old-clock-nodes-name.patch new file mode 100644 index 0000000000..cee37732ab --- /dev/null +++ b/target/linux/bcm53xx/patches-5.15/320-ARM-dts-BCM5301X-Switch-back-to-old-clock-nodes-name.patch @@ -0,0 +1,62 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 23 Nov 2021 13:13:05 +0100 +Subject: [PATCH] ARM: dts: BCM5301X: Switch back to old clock nodes names +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +First of all using the same node name prefix resulted in trying to +register 2 clocks under the same "clock-controller" name: + +[ 0.000000] __clk_core_init: clk clock-controller already initialized +[ 0.000000] ------------[ cut here ]------------ +[ 0.000000] WARNING: CPU: 0 PID: 0 at drivers/clk/bcm/clk-iproc-pll.c:802 iproc_pll_clk_setup+0x4c8/0x4f4 +[ 0.000000] Modules linked in: +[ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.80 #0 +[ 0.000000] Hardware name: BCM5301X +[ 0.000000] [<c0108410>] (unwind_backtrace) from [<c0104bc4>] (show_stack+0x10/0x14) +[ 0.000000] [<c0104bc4>] (show_stack) from [<c03dca28>] (dump_stack+0x94/0xa8) +[ 0.000000] [<c03dca28>] (dump_stack) from [<c0118440>] (__warn+0xb8/0x114) +[ 0.000000] [<c0118440>] (__warn) from [<c0118504>] (warn_slowpath_fmt+0x68/0x78) +[ 0.000000] [<c0118504>] (warn_slowpath_fmt) from [<c043281c>] (iproc_pll_clk_setup+0x4c8/0x4f4) +[ 0.000000] [<c043281c>] (iproc_pll_clk_setup) from [<c0818c04>] (nsp_genpll_clk_init+0x30/0x38) +[ 0.000000] [<c0818c04>] (nsp_genpll_clk_init) from [<c0818634>] (of_clk_init+0x118/0x1f8) +[ 0.000000] [<c0818634>] (of_clk_init) from [<c08039b0>] (time_init+0x24/0x30) +[ 0.000000] [<c08039b0>] (time_init) from [<c0800d14>] (start_kernel+0x398/0x50c) +[ 0.000000] [<c0800d14>] (start_kernel) from [<00000000>] (0x0) +[ 0.000000] ---[ end trace fe236bfe9559ee50 ]--- + +Secondly using any other names than "lcpll0" and "genpll" breaks output +clocks: + +$ cat /sys/kernel/debug/clk/usbclk/clk_rate +0 + +For some reason iproc_clk_recalc_rate() gets called with "parent_rate" +argument 0 whenever clocks aren't named "lcpll0" and "genpll". + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + arch/arm/boot/dts/bcm5301x.dtsi | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/arch/arm/boot/dts/bcm5301x.dtsi ++++ b/arch/arm/boot/dts/bcm5301x.dtsi +@@ -421,7 +421,7 @@ + #address-cells = <1>; + #size-cells = <1>; + +- lcpll0: clock-controller@100 { ++ lcpll0: lcpll0@100 { + #clock-cells = <1>; + compatible = "brcm,nsp-lcpll0"; + reg = <0x100 0x14>; +@@ -430,7 +430,7 @@ + "sdio", "ddr_phy"; + }; + +- genpll: clock-controller@140 { ++ genpll: genpll@140 { + #clock-cells = <1>; + compatible = "brcm,nsp-genpll"; + reg = <0x140 0x24>; |