[PATCH 00/34] CPUFreq: Move freq change notifications out of drivers

From: Viresh Kumar
Date: Thu Aug 15 2013 - 22:25:56 EST

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Another 452 lines gone :)

Total stats upto now for all the 5 patchsets:
Viresh Kumar (186):
...
69 files changed, 700 insertions(+), 2451 deletions(-)

Net: 1751 lines gone..

-----x-------------x----------------

Most of the drivers do following in their ->target_index() routines:

struct cpufreq_freqs freqs;
freqs.old = old freq...
freqs.new = new freq...

cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

/* Change rate here */

cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

This is replicated over all cpufreq drivers today and there doesn't exists a
good enough reason why this shouldn't be moved to cpufreq core instead.

There are few special cases though, like exynos5440, which doesn't do everything
on the call to ->target_index() routine and call some kind of bottom halves for
doing this work, work/tasklet/etc..

They may continue doing notification from their own code and so this patch
introduces another flag: CPUFREQ_NO_NOTIFICATION, which will be set by such
drivers.

This is Fifth part of my cleanup work for CPUFreq, first three are (And
obviously its rebased over them):

1: cpufreq: Introduce cpufreq_table_validate_and_show()
https://lkml.org/lkml/2013/8/8/263

2: cpufreq: define generic routines for cpufreq drivers
https://lkml.org/lkml/2013/8/10/48

3. CPUFreq: Implement light weight ->target(): for 3.13
https://lkml.org/lkml/2013/8/13/349

4. CPUFreq: set policy->cur in cpufreq core instead of drivers
https://lkml.org/lkml/2013/8/14/288

All these are pushed here:
https://git.linaro.org/gitweb?p=people/vireshk/linux.git;a=shortlog;h=refs/heads/for-v3.13

--
viresh

Cc: Andrew Lunn <andrew@xxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@xxxxxxxxx>
Cc: Eric Miao <eric.y.miao@xxxxxxxxx>
Cc: Hans-Christian Egtvedt <egtvedt@xxxxxxxxxxxx>
Cc: Jesper Nilsson <jesper.nilsson@xxxxxxxx>
Cc: John Crispin <blogic@xxxxxxxxxxx>
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: linux-cris-kernel@xxxxxxxx
Cc: Mikael Starvik <starvik@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Cc: Sekhar Nori <nsekhar@xxxxxx>
Cc: Shawn Guo <shawn.guo@xxxxxxxxxx>
Cc: sparclinux@xxxxxxxxxxxxxxx
Cc: spear-devel@xxxxxxxxxxx
Cc: Stephen Warren <swarren@xxxxxxxxxx>
Cc: Steven Miao <realmz6@xxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>

Viresh Kumar (34):
cpufreq: move freq change notifications to cpufreq core
cpufreq: acpi: remove calls to cpufreq_notify_transition()
cpufreq: arm_big_little: remove calls to cpufreq_notify_transition()
cpufreq: at32ap: remove calls to cpufreq_notify_transition()
cpufreq: blackfin: remove calls to cpufreq_notify_transition()
cpufreq: cpu0: remove calls to cpufreq_notify_transition()
cpufreq: cris: remove calls to cpufreq_notify_transition()
cpufreq: davinci: remove calls to cpufreq_notify_transition()
cpufreq: dbx500: remove calls to cpufreq_notify_transition()
cpufreq: e_powersaver: remove calls to cpufreq_notify_transition()
cpufreq: elanfreq: remove calls to cpufreq_notify_transition()
cpufreq: exynos: remove calls to cpufreq_notify_transition()
cpufreq: exynos5440: set CPUFREQ_NO_NOTIFICATION flag
cpufreq: ia64-acpi: remove calls to cpufreq_notify_transition()
cpufreq: imx6q: remove calls to cpufreq_notify_transition()
cpufreq: kirkwood: remove calls to cpufreq_notify_transition()
cpufreq: longhaul: set CPUFREQ_NO_NOTIFICATION flag
cpufreq: loongson2: remove calls to cpufreq_notify_transition()
cpufreq: maple: remove calls to cpufreq_notify_transition()
cpufreq: omap: remove calls to cpufreq_notify_transition()
cpufreq: p4-clockmod: remove calls to cpufreq_notify_transition()
cpufreq: pasemi: remove calls to cpufreq_notify_transition()
cpufreq: pmac: remove calls to cpufreq_notify_transition()
cpufreq: powernow: remove calls to cpufreq_notify_transition()
cpufreq: ppc: remove calls to cpufreq_notify_transition()
cpufreq: pxa: remove calls to cpufreq_notify_transition()
cpufreq: s3c: remove calls to cpufreq_notify_transition()
cpufreq: s5pv210: remove calls to cpufreq_notify_transition()
cpufreq: sa11x0: remove calls to cpufreq_notify_transition()
cpufreq: sc520: remove calls to cpufreq_notify_transition()
cpufreq: sparc: remove calls to cpufreq_notify_transition()
cpufreq: SPEAr: remove calls to cpufreq_notify_transition()
cpufreq: speedstep: remove calls to cpufreq_notify_transition()
cpufreq: tegra: remove calls to cpufreq_notify_transition()

drivers/cpufreq/acpi-cpufreq.c | 14 ++-------
drivers/cpufreq/arm_big_little.c | 25 ++--------------
drivers/cpufreq/at32ap-cpufreq.c | 22 ++++++--------
drivers/cpufreq/blackfin-cpufreq.c | 22 +++++---------
drivers/cpufreq/cpufreq-cpu0.c | 33 ++++++++-------------
drivers/cpufreq/cpufreq.c | 34 +++++++++++++++++++++
drivers/cpufreq/cris-artpec3-cpufreq.c | 8 -----
drivers/cpufreq/cris-etraxfs-cpufreq.c | 8 -----
drivers/cpufreq/davinci-cpufreq.c | 30 +++++++------------
drivers/cpufreq/dbx500-cpufreq.c | 22 +-------------
drivers/cpufreq/e_powersaver.c | 23 ++-------------
drivers/cpufreq/elanfreq.c | 13 --------
drivers/cpufreq/exynos-cpufreq.c | 28 +++++-------------
drivers/cpufreq/exynos5440-cpufreq.c | 2 +-
drivers/cpufreq/ia64-acpi-cpufreq.c | 19 ------------
drivers/cpufreq/imx6q-cpufreq.c | 39 ++++++++++--------------
drivers/cpufreq/kirkwood-cpufreq.c | 54 +++++++++++++---------------------
drivers/cpufreq/longhaul.c | 1 +
drivers/cpufreq/loongson2_cpufreq.c | 16 ----------
drivers/cpufreq/maple-cpufreq.c | 18 +-----------
drivers/cpufreq/omap-cpufreq.c | 39 +++++++++---------------
drivers/cpufreq/p4-clockmod.c | 10 -------
drivers/cpufreq/pasemi-cpufreq.c | 14 +--------
drivers/cpufreq/pmac32-cpufreq.c | 20 +++----------
drivers/cpufreq/pmac64-cpufreq.c | 18 +-----------
drivers/cpufreq/powernow-k6.c | 8 -----
drivers/cpufreq/powernow-k7.c | 11 +------
drivers/cpufreq/powernow-k8.c | 15 +---------
drivers/cpufreq/ppc-corenet-cpufreq.c | 19 +-----------
drivers/cpufreq/ppc_cbe_cpufreq.c | 19 +-----------
drivers/cpufreq/pxa2xx-cpufreq.c | 27 ++++-------------
drivers/cpufreq/pxa3xx-cpufreq.c | 12 --------
drivers/cpufreq/s3c2416-cpufreq.c | 21 +++----------
drivers/cpufreq/s3c64xx-cpufreq.c | 48 ++++++++++--------------------
drivers/cpufreq/s5pv210-cpufreq.c | 16 ++++------
drivers/cpufreq/sa1100-cpufreq.c | 17 ++++-------
drivers/cpufreq/sa1110-cpufreq.c | 12 ++------
drivers/cpufreq/sc520_freq.c | 11 -------
drivers/cpufreq/sparc-us2e-cpufreq.c | 7 -----
drivers/cpufreq/sparc-us3-cpufreq.c | 7 -----
drivers/cpufreq/spear-cpufreq.c | 13 +-------
drivers/cpufreq/speedstep-centrino.c | 20 +------------
drivers/cpufreq/speedstep-ich.c | 9 ------
drivers/cpufreq/speedstep-smi.c | 7 -----
drivers/cpufreq/tegra-cpufreq.c | 25 ++++------------
include/linux/cpufreq.h | 6 ++++
46 files changed, 205 insertions(+), 657 deletions(-)

--
1.7.12.rc2.18.g61b472e

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Next message: Viresh Kumar: "[PATCH 01/34] cpufreq: move freq change notifications to cpufreq core"
Previous message: Richard Yao: "Why are BSD-licensed LZ4 symbols GPL exported?"
Next in thread: Viresh Kumar: "[PATCH 01/34] cpufreq: move freq change notifications to cpufreq core"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]