linux-toradex.git/drivers/devfreq/event/exynos-ppmu.c, branch v5.6-rc5

PM / devfreq: exynos: Rename Exynos to lowercase

2020-01-06T01:50:09+00:00

Fix up inconsistent usage of upper and lowercase letters in "Exynos"
name.

"EXYNOS" is not an abbreviation but a regular trademarked name.
Therefore it should be written with lowercase letters starting with
capital letter.

The lowercase "Exynos" name is promoted by its manufacturer Samsung
Electronics Co., Ltd., in advertisement materials and on website.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-ppmu: Fix excessive stack usage

2019-12-30T00:59:04+00:00

Putting a 'struct devfreq_event_dev' object on the stack is generally
a bad idea and here it leads to a warnig about potential stack overflow:

drivers/devfreq/event/exynos-ppmu.c:643:12: error: stack frame size of 1040 bytes in function 'exynos_ppmu_probe' [-Werror,-Wframe-larger-than=]

There is no real need for the device structure, only the string inside
it, so add an internal helper function that simply takes the string
as its argument and remove the device structure.

Fixes: 1dd62c66d345 ("PM / devfreq: events: extend events by type of counted data")
Signed-off-by: Arnd Bergmann 
[cw00.choi: Fix the issue from 'desc->name' to 'desc[j].name']
Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-ppmu: remove useless assignment

2019-11-06T03:04:00+00:00

The error code is propagated to the caller, so there is no need to keep
it additionally in the unused variable.

Signed-off-by: Marek Szyprowski 
Acked-by: Chanwoo Choi 
Signed-off-by: Chanwoo Choi

PM / devfreq: events: extend events by type of counted data

2019-08-25T03:44:38+00:00

This patch adds posibility to choose what type of data should be counted
by the PPMU counter. Now the type comes from DT where the event has been
defined. When there is no 'event-data-type' the default value is used,
which is 'read+write data in bytes'.
It is needed when you want to know not only read+write data bytes but
i.e. only write data in byte, or number of read requests, etc.

Signed-off-by: Lukasz Luba 
Acked-by: Chanwoo Choi 
[Updated property by MyungJoo. data_type --> event_type]
Signed-off-by: MyungJoo Ham

PM / devfreq: exynos-events: change matching code during probe

2019-08-25T03:36:47+00:00

The patch changes the way how the 'ops' gets populated for different
device versions. The matching function now uses 'of_device_id' in order
to identify the device type.

Signed-off-by: Lukasz Luba 
Signed-off-by: Chanwoo Choi 
Signed-off-by: MyungJoo Ham

PM / devfreq: events: add Exynos PPMU new events

2019-08-24T11:11:12+00:00

Define new performance events supported by Exynos5422 SoC counters.
The counters are built-in in Dynamic Memory Controller and provide
information regarding memory utilization.

Signed-off-by: Lukasz Luba 
Acked-by: Chanwoo Choi 
Signed-off-by: MyungJoo Ham

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

PM / devfreq: Use of_node_name_eq for node name comparisons

2019-04-16T00:29:18+00:00

Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

For instances using of_node_cmp, this has the side effect of now using
case sensitive comparisons. This should not matter for any FDT based
system which all of these are.

Cc: Chanwoo Choi 
Cc: MyungJoo Ham 
Cc: Kyungmin Park 
Cc: Kukjin Kim 
Cc: Krzysztof Kozlowski 
Cc: linux-pm@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Rob Herring 
Signed-off-by: MyungJoo Ham

PM / devfreq: Convert to using %pOFn instead of device_node.name

2018-10-02T01:16:41+00:00

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Signed-off-by: Rob Herring 
Acked-by: Chanwoo Choi 
Signed-off-by: MyungJoo Ham

PM / devfreq: exynos-ppmu: Delete an error message for a failed memory allocation in exynos_ppmu_probe()

2018-07-18T04:56:46+00:00

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Acked-by: Chanwoo Choi 
Signed-off-by: MyungJoo Ham