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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2022-05-16 23:40:32 +0200 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2022-05-17 15:11:22 +0200 |
commit | 20ea6adbf199097c4f5f591ffee088340630dae4 (patch) | |
tree | d6719d95e136611a1c25bbf7789652d6d402779d /target/linux/bcm27xx/patches-5.15/950-0852-clk-Remove-redundant-clk_core_init_rate_req-call.patch | |
parent | bca05bd072180dc38ef740b37ded9572a6db1981 (diff) | |
download | upstream-20ea6adbf199097c4f5f591ffee088340630dae4.tar.gz upstream-20ea6adbf199097c4f5f591ffee088340630dae4.tar.bz2 upstream-20ea6adbf199097c4f5f591ffee088340630dae4.zip |
bcm27xx: add support for linux v5.15
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0852-clk-Remove-redundant-clk_core_init_rate_req-call.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0852-clk-Remove-redundant-clk_core_init_rate_req-call.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0852-clk-Remove-redundant-clk_core_init_rate_req-call.patch b/target/linux/bcm27xx/patches-5.15/950-0852-clk-Remove-redundant-clk_core_init_rate_req-call.patch new file mode 100644 index 0000000000..cfc272d194 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0852-clk-Remove-redundant-clk_core_init_rate_req-call.patch @@ -0,0 +1,34 @@ +From 62bc67ade6e30b4a578f105d8bb18de0ffc45a88 Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime@cerno.tech> +Date: Sat, 2 Apr 2022 14:06:53 +0200 +Subject: [PATCH] clk: Remove redundant clk_core_init_rate_req() call + +Since all the users of clk_core_round_rate_nolock() will now properly +initialize, there's no need for it to initialize the request itself. + +This is even dangerous, as if the clock cannot change its rate by itself +and has CLK_SET_RATE_PARENT, clk_core_round_rate_nolock() will call +itself with the parent clock but the client clk_rate_request structure. + +We will then reinitialize the child request with the parent context +(parent, boundaries, etc.), which is an issue if the parent ever changes +its own parent or parent rate. + +Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com> # imx8mp +Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> # exynos4210, meson g12b +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + drivers/clk/clk.c | 2 -- + 1 file changed, 2 deletions(-) + +--- a/drivers/clk/clk.c ++++ b/drivers/clk/clk.c +@@ -1430,8 +1430,6 @@ static int clk_core_round_rate_nolock(st + return 0; + } + +- clk_core_init_rate_req(core, req, req->rate); +- + if (clk_core_can_round(core)) + return clk_core_determine_round_nolock(core, req); + else if (core->flags & CLK_SET_RATE_PARENT) |