Hi,
Originally sent on Apr 14th, note that this series is blocking another 16
patches series, I would like it to be taken in 3.16 if we can agree on this
implementation.
A patch set as suggested by Thierry to make lookup with the lookup table
instead of device tree behave more like when using device tree.
The first patch adds a period and a polarity member to the lookup table and use
those to set period and polarity.
Patch 2, 4 and 5 are making use of those new members from the board files.
Patch 3 removes useless code since setting the polarity is now handled by the
PWM core.
I couldn't decide on a good name for the extended PWM_LOOKUP macro and I believe
we won't have to add members to that structure soon so:
Patch 6 modifies the PWM_LOOKUP macro to also initialize period and polarity
and
Patch 7-9 are making use of the new PWM_LOOKUP macro in the board files
Patch 10 and 11 are making the leds-pwm and pwm_bl drivers get the period from
the PWM before using pwm_period_ns if it is not already set.
Patch 10 will obviously conflict with the series of Russell reworking the
leds-pwm probing. I can rebase if necessary
The final goal would be to get rid of .pwm_period_ns in leds-pwm and pwm_bl
after moving all the remaining users (still around 25) to pwm_lookup.
Changes in v2:
- correctly unlock the pwm_lookup_lock mutex before returning.
- don't change PWM_LOOKUP atomically
- remove tpu_pwm_platform_data and the associated header file
- make the leds-pwm and pwm_bl drivers get the period from the PWM
Alexandre Belloni (11):
pwm: add period and polarity to struct pwm_lookup
ARM: shmobile: Armadillo 800 EVA: initialize all struct pwm_lookup
members
pwm: renesas-tpu: remove useless struct tpu_pwm_platform_data
ARM: OMAP3: Beagle: initialize all the struct pwm_lookup members
ARM: pxa: hx4700: initialize all the struct pwm_lookup members
pwm: modify PWM_LOOKUP to initialize all struct pwm_lookup members
ARM: OMAP3: Beagle: use PWM_LOOKUP to initialize struct pwm_lookup
ARM: shmobile: Armadillo 800 EVA: use PWM_LOOKUP to initialize struct
pwm_lookup
ARM: pxa: hx4700: use PWM_LOOKUP to initialize struct pwm_lookup
leds: leds-pwm: retrieve configured pwm period
backlight: pwm_bl: retrieve configured pwm period
Documentation/pwm.txt | 3 ++-
arch/arm/mach-omap2/board-omap3beagle.c | 3 ++-
arch/arm/mach-pxa/hx4700.c | 3 ++-
arch/arm/mach-shmobile/board-armadillo800eva.c | 14 +++-----------
drivers/leds/leds-pwm.c | 5 ++++-
drivers/pwm/core.c | 8 +++++++-
drivers/pwm/pwm-renesas-tpu.c | 19 +++----------------
drivers/video/backlight/pwm_bl.c | 8 +++++---
include/linux/platform_data/pwm-renesas-tpu.h | 16 ----------------
include/linux/pwm.h | 6 +++++-
10 files changed, 33 insertions(+), 52 deletions(-)
delete mode 100644 include/linux/platform_data/pwm-renesas-tpu.h
--
1.9.1
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