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| author | André Draszik <andre.draszik@linaro.org> | 2025-03-25 12:46:08 +0300 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2025-04-07 09:21:57 +0300 |
| commit | 2d14c680e92f09d18b984cd1a8fae437f9ebc2ab (patch) | |
| tree | b22fdeb82fd87a7dd08c0dc9a98fd6723047260e | |
| parent | d2098981eb7b7d20edd294a8431908f8a0d2f9c0 (diff) | |
| download | linux-2d14c680e92f09d18b984cd1a8fae437f9ebc2ab.tar.xz | |
firmware: exynos-acpm: allow use during system shutdown
We need to access the PMIC during late system shutdown and at that time
we are not allowed to sleep anymore.
To make this case work, and since we can't detect this case in a
non-racy way, switch to using udelay() unconditionally, instead of
usleep_range().
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250325-acpm-atomic-v3-2-c66aae7df925@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
| -rw-r--r-- | drivers/firmware/samsung/exynos-acpm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/samsung/exynos-acpm.c b/drivers/firmware/samsung/exynos-acpm.c index 542eaff03f9e..379da420b9eb 100644 --- a/drivers/firmware/samsung/exynos-acpm.c +++ b/drivers/firmware/samsung/exynos-acpm.c @@ -300,7 +300,7 @@ static int acpm_dequeue_by_polling(struct acpm_chan *achan, return 0; /* Determined experimentally. */ - usleep_range(20, 30); + udelay(20); } while (ktime_before(ktime_get(), timeout)); dev_err(dev, "Timeout! ch:%u s:%u bitmap:%lx.\n", |