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OpenCloudOS-Kernel/drivers/clk/at91
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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
..
Makefile clk: at91: add sam9x60 pmc driver 2019-04-25 14:15:53 -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
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