kernel/drivers/hwtracing/intel_th/pti.c, branch linux-6.9.y

intel_th: Constify attribute_group structs

2021-04-16T05:26:50Z

The only usage of them is to pass their address to sysfs_create_group() and sysfs_remove_group(), both which have pointers to const attribute_group structs as input. Make them const to allow the compiler to put them in read-only memory. Signed-off-by: Rikard Falkeborn Signed-off-by: Alexander Shishkin Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210414171251.14672-5-alexander.shishkin@linux.intel.com Signed-off-by: Greg Kroah-Hartman

intel_th: pti: Use sysfs_match_string() helper

2019-02-21T13:04:36Z

Use sysfs_match_string() helper instead of open coded variant. Signed-off-by: Andy Shevchenko Signed-off-by: Alexander Shishkin

intel_th: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate

2018-03-28T15:47:19Z

This adds SPDX GPL-2.0 header to the Trace Hub driver and removes the GPLv2 boilerplate text. Signed-off-by: Alexander Shishkin

intel_th: pti: Support Low Power Path output port type

2017-08-25T15:47:57Z

The Low Power Path (LPP) output port type, looks mostly like PTI to the software, with a few additional bits in the control register. This extends the PTI driver to support LPP ports as well. Signed-off-by: Alexander Shishkin

intel_th: pti: Create sysfs attributes using core driver's facility

2016-04-08T13:11:57Z

The core intel_th driver allows subdevices to bring in their sysfs attributes. Use this instead of taking care of them in probe and remove. Signed-off-by: Alexander Shishkin Reviewed-by: Laurent Fert

intel_th: pti: Do remove sysfs group on device removal

2016-04-08T13:11:54Z

Right now, the PTI output driver forgets to clean up its sysfs group when it gets removed. Fix this. Reported-by: Alan Cox Signed-off-by: Alexander Shishkin Reviewed-by: Laurent Fert

intel_th: Check for NULL instead of ERR_PTR

2015-10-17T06:25:48Z

devm_ioremap() returns NULL on error, it doesn't return an ERR_PTR, which is what the current code does. This patch corrects these checks. Signed-off-by: Dan Carpenter Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: Add PTI output driver

2015-10-04T19:28:58Z

Parallel Trace Interface (PTI) unit is a trace output device that sends data over a PTI port. The driver provides interfaces to configure bus width, bus clock divider and mode. Tracing is enabled via output device's "active" attribute. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman