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linux/drivers/clk/sunxi-ng
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Jernej Skrabec f1fa9a9816 clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change 
[ Upstream commit 7e91ed763dc07437777bd012af7a2bd4493731ff ]

While PLL CPUX clock rate change when CPU is running from it works in
vast majority of cases, now and then it causes instability. This leads
to system crashes and other undefined behaviour. After a lot of testing
(30+ hours) while also doing a lot of frequency switches, we can't
observe any instability issues anymore when doing reparenting to stable
clock like 24 MHz oscillator.

Fixes: 524353ea480b ("clk: sunxi-ng: add support for the Allwinner H6 CCU")
Reported-by: Chad Wagner <wagnerch42@gmail.com>
Link: https://forum.libreelec.tv/thread/27295-orange-pi-3-lts-freezes/
Tested-by: Chad Wagner <wagnerch42@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20231013181712.2128037-1-jernej.skrabec@gmail.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-17 11:50:51 +02:00
..
ccu_common.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu_common.h
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu_div.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_div.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_frac.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_frac.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_gate.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_gate.h
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
ccu_mmc_timing.c
clk: sunxi-ng: Modify mismatched function name
2023-09-19 12:22:40 +02:00
ccu_mp.c
clk: sunxi-ng: mp: fix parent rate change flag check
2021-02-11 19:02:24 -08:00
ccu_mp.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_mult.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_mult.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ccu_mux.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_mux.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ccu_nk.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_nk.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_nkm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_nkm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_nkmp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_nkmp.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_nm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_nm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_phase.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_phase.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_reset.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_reset.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu_sdm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ccu_sdm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
ccu-sun4i-a10.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun4i-a10.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun5i.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun5i.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun6i-a31.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun6i-a31.h
clk: sunxi: a31: Export the MIPI PLL
2020-01-04 09:45:09 +01:00
ccu-sun8i-a23-a33.h
clk: sunxi: a23/a33: Export the MIPI PLL
2020-01-04 09:45:19 +01:00
ccu-sun8i-a23.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-a33.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-a83t.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-a83t.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun8i-de2.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-de2.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun8i-h3.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-h3.h
clk: sunxi-ng: h3: Export MBUS clock
2019-11-05 11:34:41 +01:00
ccu-sun8i-r40.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-r40.h
clk: sunxi-ng: r40: Export MBUS clock
2020-01-03 10:37:14 +01:00
ccu-sun8i-r.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-r.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun8i-v3s.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun8i-v3s.h
clk: sunxi-ng: v3s: Fix incorrect number of hw_clks.
2019-12-09 08:49:31 +01:00
ccu-sun9i-a80-de.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun9i-a80-de.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun9i-a80-usb.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun9i-a80-usb.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun9i-a80.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun9i-a80.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ccu-sun50i-a64.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun50i-a64.h
clk: sunxi-ng: a64: Export MBUS clock
2020-02-11 07:49:14 +01:00
ccu-sun50i-a100-r.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun50i-a100-r.h
clk: sunxi-ng: add support for the Allwinner A100 CCU
2020-08-25 10:52:18 +02:00
ccu-sun50i-a100.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun50i-a100.h
clk: sunxi-ng: add support for the Allwinner A100 CCU
2020-08-25 10:52:18 +02:00
ccu-sun50i-h6-r.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun50i-h6-r.h
clk: sunxi-ng: h6-r: Add R_APB2_RSB clock and reset
2021-01-06 19:34:29 +08:00
ccu-sun50i-h6.c
clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change
2024-05-17 11:50:51 +02:00
ccu-sun50i-h6.h
clk: sunxi-ng: Use the correct style for SPDX License Identifier
2019-05-01 13:01:26 -07:00
ccu-sun50i-h616.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-sun50i-h616.h
clk: sunxi-ng: Add support for the Allwinner H616 CCU
2021-01-28 11:14:35 +01:00
ccu-suniv-f1c100s.c
clk: sunxi-ng: Unregister clocks/resets when unbinding
2021-11-25 09:48:23 +01:00
ccu-suniv-f1c100s.h
clk: sunxi-ng: Use the correct style for SPDX License Identifier
2019-05-01 13:01:26 -07:00
Kconfig
clk: sunxi-ng: Add support for the Allwinner H616 CCU
2021-01-28 11:14:35 +01:00
Makefile
clk: sunxi-ng: Add support for the Allwinner H616 CCU
2021-01-28 11:14:35 +01:00