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spi: Remove check for controller idling in spi sync path
author
David Jander
<david@protonic.nl>
Tue, 21 Jun 2022 06:12:28 +0000
(08:12 +0200)
committer
Mark Brown
<broonie@kernel.org>
Mon, 27 Jun 2022 12:27:20 +0000
(13:27 +0100)
Now that the idling flag is wholly behind the io_mutex, this broken piece
of code can be safely removed.
Signed-off-by: David Jander <david@protonic.nl>
Link:
https://lore.kernel.org/r/20220621061234.3626638-6-david@protonic.nl
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi.c
patch
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diff --git
a/drivers/spi/spi.c
b/drivers/spi/spi.c
index
fa2d091
..
d8d2b7a
100644
(file)
--- a/
drivers/spi/spi.c
+++ b/
drivers/spi/spi.c
@@
-3964,10
+3964,6
@@
static void __spi_transfer_message_noqueue(struct spi_controller *ctlr, struct s
mutex_lock(&ctlr->io_mutex);
- /* If another context is idling the device then wait */
- while (ctlr->idling)
- usleep_range(10000, 11000);
-
was_busy = READ_ONCE(ctlr->busy);
ret = __spi_pump_transfer_message(ctlr, msg, was_busy);