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linux/drivers/clk/sunxi-ng
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Vasily Khoruzhick 210eb21986 clk: sunxi-ng: a64: stop force-selecting PLL-MIPI as TCON0 parent 
[ Upstream commit 383ca7bee8 ]

Stop force-selecting PLL-MIPI as TCON0 parent, since it breaks video
output on Pinebook that uses RGB to eDP bridge.

Partially revert commit ca1170b699 ("clk: sunxi-ng: a64: force
select PLL_MIPI in TCON0 mux"), while still leaving
CLK_SET_RATE_NO_REPARENT flag set, since we do not want the clock to
be reparented.

The issue is that apparently different TCON0 outputs require a different
clock, or the mux might be selecting the output type.

I did an experiment: I manually configured PLL_MIPI and PLL_VIDEO0_2X
to the same clock rate and flipped the switch with devmem. Experiment
clearly showed that whenever PLL_MIPI is selected as TCON0 clock parent,
the video output stops working.

Therefore, TCON0 clock parent corresponding to the output type must be
assigned in the device tree.

Fixes: ca1170b699 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Frank Oltmanns <frank@oltmanns.dev> # on PinePhone
Tested-by: Stuart Gathman <stuart@gathman.org> # on OG Pinebook
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Link: https://patch.msgid.link/20250104074035.1611136-5-anarsoul@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-02-08 09:57:10 +01:00
..
ccu-sun4i-a10.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
ccu-sun6i-a31.h clk: sunxi: a31: Export the MIPI PLL 2020-01-04 09:45:09 +01:00
ccu-sun6i-rtc.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
ccu-sun8i-a33.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
ccu-sun8i-a83t.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
ccu-sun8i-h3.h dt-bindings: clock: sunxi: Export CLK_DRAM for devfreq 2021-11-23 11:29:35 +01:00
ccu-sun8i-r.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
ccu-sun8i-r.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ccu-sun8i-r40.c clk: sunxi-ng r40: Constify struct regmap_config 2024-07-10 12:47:20 -07:00
ccu-sun8i-r40.h clk: sunxi-ng: r40: Export MBUS clock 2020-01-03 10:37:14 +01:00
ccu-sun8i-v3s.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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 missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: Fix PLL_AUDIO0 preset 2024-12-05 14:02:07 +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: stop force-selecting PLL-MIPI as TCON0 parent 2025-02-08 09:57:10 +01:00
ccu-sun50i-a64.h clk: sunxi-ng: a64: drop redundant CLK_PLL_VIDEO0_2X and CLK_PLL_MIPI 2025-02-08 09:57:09 +01:00
ccu-sun50i-a100-r.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
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 clock/reset for GPADC 2024-06-22 20:09:20 +08:00
ccu-sun50i-h616.h clk: sunxi-ng: h616: Add clock/reset for GPADC 2024-06-22 20:09:20 +08:00
ccu-suniv-f1c100s.c clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros 2024-06-04 20:46:43 +08:00
ccu-suniv-f1c100s.h clk: sunxi-ng: f1c100s: Add IR mod clock 2022-11-16 19:49:18 +01:00
ccu_common.c This a large collection of clk driver updates and a handful of new SoC 2024-07-19 12:16:28 -07:00
ccu_common.h clk: sunxi-ng: common: Support minimum and maximum rate 2024-04-15 23:21:45 +02:00
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: Support constraints on m/n ratio and parent rate 2024-04-15 23:23:09 +02:00
ccu_nkm.h clk: sunxi-ng: nkm: Support constraints on m/n ratio and parent rate 2024-04-15 23:23:09 +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
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