tracing: Fix hwlat kthread migration

The hwlat tracer creates a kernel thread at start of the tracer. It is
pinned to a single CPU and will move to the next CPU after each period of
running. If the user modifies the migration thread's affinity, it will not
change after that happens.

The original code created the thread at the first instance it was called,
but later was changed to destroy the thread after the tracer was finished,
and would not be created until the next instance of the tracer was
established. The code that initialized the affinity was only called on the
initial instantiation of the tracer. After that, it was not initialized, and
the previous affinity did not match the current newly created one, making
it appear that the user modified the thread's affinity when it did not, and
the thread failed to migrate again.

Cc: stable@vger.kernel.org
Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

path: root/include/dt-bindings/sound/tas2552.h

#ifndef __DT_TAS2552_H
#define __DT_TAS2552_H

#define TAS2552_PLL_CLKIN		(0)
#define TAS2552_PDM_CLK			(1)
#define TAS2552_CLK_TARGET_MASK		(1)

#define TAS2552_PLL_CLKIN_MCLK		((0 << 1) | TAS2552_PLL_CLKIN)
#define TAS2552_PLL_CLKIN_BCLK		((1 << 1) | TAS2552_PLL_CLKIN)
#define TAS2552_PLL_CLKIN_IVCLKIN	((2 << 1) | TAS2552_PLL_CLKIN)
#define TAS2552_PLL_CLKIN_1_8_FIXED	((3 << 1) | TAS2552_PLL_CLKIN)

#define TAS2552_PDM_CLK_PLL		((0 << 1) | TAS2552_PDM_CLK)
#define TAS2552_PDM_CLK_IVCLKIN		((1 << 1) | TAS2552_PDM_CLK)
#define TAS2552_PDM_CLK_BCLK		((2 << 1) | TAS2552_PDM_CLK)
#define TAS2552_PDM_CLK_MCLK		((3 << 1) | TAS2552_PDM_CLK)

#endif /* __DT_TAS2552_H */