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authorPeter Zijlstra <peterz@infradead.org>2019-08-01 13:13:53 +0200
committerMark Brown <broonie@kernel.org>2019-08-02 13:15:24 +0200
commit4ff13d00ebd5533947b083c66d44da3243a2d559 (patch)
treeb56d260b0aac8e4500b479ad5504b9b0af7e5c03 /drivers/platform
parentspi: core: Use DEVICE_ATTR_RW() for SPI slave control sysfs attribute (diff)
downloadlinux-4ff13d00ebd5533947b083c66d44da3243a2d559.tar.xz
linux-4ff13d00ebd5533947b083c66d44da3243a2d559.zip
spi: Reduce kthread priority
The SPI thingies request FIFO-99 by default, reduce this to FIFO-50. FIFO-99 is the very highest priority available to SCHED_FIFO and it not a suitable default; it would indicate the SPI work is the most important work on the machine. Cc: Benson Leung <bleung@chromium.org> Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com> Cc: Guenter Roeck <groeck@chromium.org> Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20190801111541.917256884@infradead.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/chrome/cros_ec_spi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/platform/chrome/cros_ec_spi.c b/drivers/platform/chrome/cros_ec_spi.c
index 006a8ff64057..714306bc3f79 100644
--- a/drivers/platform/chrome/cros_ec_spi.c
+++ b/drivers/platform/chrome/cros_ec_spi.c
@@ -706,7 +706,7 @@ static int cros_ec_spi_devm_high_pri_alloc(struct device *dev,
struct cros_ec_spi *ec_spi)
{
struct sched_param sched_priority = {
- .sched_priority = MAX_RT_PRIO - 1,
+ .sched_priority = MAX_RT_PRIO / 2,
};
int err;