Alexandre Belloni 658fd65cf0 clk: at91: avoid sleeping early ...

It is not allowed to sleep to early in the boot process and this may lead
to kernel issues if the bootloader didn't prepare the slow clock and main
clock.

This results in the following error and dump stack on the AriettaG25:
   bad: scheduling from the idle thread!

Ensure it is possible to sleep, else simply have a delay.

Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lkml.kernel.org/r/20190920153906.20887-1-alexandre.belloni@bootlin.com
Fixes: 80eded6ce8 ("clk: at91: add slow clks driver")
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

2019-10-28 07:55:01 -07:00

..

at91sam9rl.c

clk: at91: Mark struct clk_range as const

2019-04-25 14:16:26 -07:00

at91sam9x5.c

clk: at91: Mark struct clk_range as const

2019-04-25 14:16:26 -07:00

at91sam9260.c

clk: at91: Mark struct clk_range as const

2019-04-25 14:16:26 -07:00

clk-audio-pll.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-generated.c

clk: at91: generated: Truncate divisor to GENERATED_MAX_DIV + 1

2019-07-22 14:32:08 -07:00

clk-h32mx.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-i2s-mux.c

clk: at91: move DT compatibility code to its own file

2018-10-17 10:45:39 -07:00

clk-main.c

clk: at91: avoid sleeping early

2019-10-28 07:55:01 -07:00

clk-master.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-peripheral.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-pll.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-plldiv.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-programmable.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-sam9x60-pll.c

clk: at91: add sam9x60 PLL driver

2019-04-25 12:34:06 -07:00

clk-slow.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-smd.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-system.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-usb.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

clk-utmi.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

dt-compat.c

clk: at91: allow configuring generated PCR layout

2019-04-25 12:34:03 -07:00

Makefile

clk: at91: add sam9x60 pmc driver

2019-04-25 14:15:53 -07:00

pmc.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

pmc.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

sam9x60.c

clk: at91: sam9x60: fix programmable clock

2019-10-03 13:59:07 -07:00

sama5d2.c

clk: at91: allow 24 Mhz clock as input for PLL

2019-09-17 22:00:31 -07:00

sama5d4.c

clk: at91: Mark struct clk_range as const

2019-04-25 14:16:26 -07:00

sckc.c

clk: at91: avoid sleeping early

2019-10-28 07:55:01 -07:00