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| author | Julien Panis <jpanis@baylibre.com> | 2023-08-21 16:24:18 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2023-09-11 06:04:17 +0300 |
| commit | d929b2b7464f95ec01e47f560b1e687482ba8929 (patch) | |
| tree | 181c0a986f948b0512e0e1c131cb2cf96a9fd41b /kernel/groups.c | |
| parent | 0bb80ecc33a8fb5a682236443c1e740d5c917d1d (diff) | |
| download | linux-d929b2b7464f95ec01e47f560b1e687482ba8929.tar.gz linux-d929b2b7464f95ec01e47f560b1e687482ba8929.tar.bz2 linux-d929b2b7464f95ec01e47f560b1e687482ba8929.zip | |
bus: ti-sysc: Use fsleep() instead of usleep_range() in sysc_reset()
The am335x-evm started producing boot errors because of subtle timing
changes:
Unhandled fault: external abort on non-linefetch (0x1008) at 0xf03c1010
...
sysc_reset from sysc_probe+0xf60/0x1514
sysc_probe from platform_probe+0x5c/0xbc
...
The fix consists in using the appropriate sleep function in sysc reset.
For flexible sleeping, fsleep is recommended. Here, sysc delay parameter
can take any value in [0 - 255] us range. As a result, fsleep() should
be used, calling udelay() for a sysc delay lower than 10 us.
Signed-off-by: Julien Panis <jpanis@baylibre.com>
Fixes: e709ed70d122 ("bus: ti-sysc: Fix missing reset delay handling")
Message-ID: <20230821-fix-ti-sysc-reset-v1-1-5a0a5d8fae55@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'kernel/groups.c')
0 files changed, 0 insertions, 0 deletions