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7e91ed763d
linux-stable/drivers/clk/sunxi-ng
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Jernej Skrabec 7e91ed763d clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change 
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: 524353ea48 ("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>
2024-04-15 23:04:22 +02:00
..
ccu_common.c clk: sunxi-ng: Add helper function to find closest rate 2023-08-09 23:33:58 +08:00
ccu_common.h clk: sunxi-ng: Add helper function to find closest rate 2023-08-09 23:33:58 +08:00
ccu_div.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
ccu_div.h clk: sunxi-ng: div: Support finding closest rate 2023-08-09 23:33:59 +08:00
ccu_frac.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
ccu_frac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ccu_gate.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
ccu_gate.h clk: sunxi-ng: gate: Add macros for gates with fixed dividers 2021-11-23 10:29:05 +01:00
ccu_mmc_timing.c clk: sunxi-ng: Modify mismatched function name 2023-07-31 00:52:36 +02:00
ccu_mp.c clk: sunxi-ng: Avoid computing the rate twice 2023-01-08 21:55:17 +01:00
ccu_mp.h clk: sunxi-ng: mp: Add macros using clk_parent_data and clk_hw 2021-11-23 10:29:05 +01:00
ccu_mult.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
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 clk: sunxi-ng: mux: Support finding closest rate 2023-08-09 23:33:59 +08:00
ccu_mux.h clk: sunxi-ng: mux: Support finding closest rate 2023-08-09 23:33:59 +08:00
ccu_nk.c clk: sunxi-ng: Avoid computing the rate twice 2023-01-08 21:55:17 +01:00
ccu_nk.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ccu_nkm.c clk: sunxi-ng: nkm: remove redundant initialization of tmp_parent 2023-11-18 23:20:34 +01:00
ccu_nkm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ccu_nkmp.c clk: sunxi-ng: Avoid computing the rate twice 2023-01-08 21:55:17 +01:00
ccu_nkmp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ccu_nm.c clk: sunxi-ng: nm: Support finding closest rate 2023-08-09 23:33:58 +08:00
ccu_nm.h clk: sunxi-ng: nm: Support finding closest rate 2023-08-09 23:33:58 +08:00
ccu_phase.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
ccu_phase.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ccu_reset.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
ccu_reset.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ccu_sdm.c clk: sunxi-ng: Export symbols used by CCU drivers 2021-11-22 10:02:21 +01:00
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: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
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 2021-09-13 09:03:20 +02:00
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: Convert early providers to platform drivers 2021-11-23 10:29:05 +01:00
ccu-sun6i-a31.h clk: sunxi: a31: Export the MIPI PLL 2020-01-04 09:45:09 +01:00
ccu-sun6i-rtc.c clk: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
ccu-sun6i-rtc.h clk: sunxi-ng: Add support for the sun6i RTC clocks 2022-03-23 19:58:38 +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: Convert early providers to platform drivers 2021-11-23 10:29:05 +01:00
ccu-sun8i-a33.c clk: sunxi-ng: Convert early providers to platform drivers 2021-11-23 10:29:05 +01:00
ccu-sun8i-a83t.c clk: sunxi-ng: Allow drivers to be built as modules 2021-11-22 10:02:21 +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: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
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: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
ccu-sun8i-h3.h dt-bindings: clock: sunxi: Export CLK_DRAM for devfreq 2021-11-23 11:29:35 +01:00
ccu-sun8i-r40.c clk: sunxi-ng: Allow drivers to be built as modules 2021-11-22 10:02:21 +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: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
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: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
ccu-sun8i-v3s.h clk: sunxi-ng: v3s: Correct the header guard of ccu-sun8i-v3s.h 2022-11-16 19:45:53 +01:00
ccu-sun9i-a80-de.c clk: sunxi-ng: ccu-sun9i-a80-de: Use dev_err_probe() helper 2022-09-08 21:59:01 +02:00
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: ccu-sun9i-a80-usb: Use dev_err_probe() helper 2022-09-08 21:59:01 +02:00
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: Allow drivers to be built as modules 2021-11-22 10:02:21 +01:00
ccu-sun9i-a80.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ccu-sun20i-d1-r.c clk: sunxi-ng: Add support for the D1 SoC clocks 2021-11-23 10:29:05 +01:00
ccu-sun20i-d1-r.h clk: sunxi-ng: Add support for the D1 SoC clocks 2021-11-23 10:29:05 +01:00
ccu-sun20i-d1.c clk: sunxi-ng: d1: Add CAN bus gates and resets 2023-01-08 22:06:10 +01:00
ccu-sun20i-d1.h clk: sunxi-ng: d1: Add CAN bus gates and resets 2023-01-08 22:06:10 +01:00
ccu-sun50i-a64.c clk: sunxi-ng: a64: select closest rate for pll-video0 2023-08-09 23:41:44 +08:00
ccu-sun50i-a64.h dt-bindings: clock: sunxi: Export CLK_DRAM for devfreq 2021-11-23 11:29:35 +01:00
ccu-sun50i-a100-r.c clk: sunxi-ng: Allow drivers to be built as modules 2021-11-22 10:02:21 +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: Allow drivers to be built as modules 2021-11-22 10:02:21 +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: Explicitly include correct DT includes 2023-07-19 13:13:16 -07:00
ccu-sun50i-h6-r.h clk: sunxi-ng: h6-r: Add RTC gate clock 2022-05-06 18:02:40 +02:00
ccu-sun50i-h6.c clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change 2024-04-15 23:04:22 +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: h616: Add PLL derived 32KHz clock 2022-05-06 18:03:52 +02:00
ccu-sun50i-h616.h clk: sunxi-ng: h616: Add PLL derived 32KHz clock 2022-05-06 18:03:52 +02:00
ccu-suniv-f1c100s.c clk: sunxi-ng: f1c100s: Add IR mod clock 2022-11-16 19:49:18 +01:00
ccu-suniv-f1c100s.h clk: sunxi-ng: f1c100s: Add IR mod clock 2022-11-16 19:49:18 +01:00
Kconfig clk: sunxi-ng: d1: Allow building for R528/T113 2023-01-08 22:06:10 +01:00
Makefile clk: sunxi-ng: Add support for the sun6i RTC clocks 2022-03-23 19:58:38 +01:00