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Groups > linux.kernel > #1510075
| From | Lukasz Majewski <l.majewski@majess.pl> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 00/10] pwm: imx: Provide atomic operation for IMX PWM driver |
| Date | 2016-10-27 08:40 +0200 |
| Message-ID | <swMw2-6AV-11@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
This patch set brings atomic operation to i.MX's PWMv2 driver.
This work has been supported and suggested by Boris Brezillon [1] and
Stefan Agner, by showing how simple the transition could be :-).
It has been divided into several steps:
- Provide different pwm ops for PWMv1 and PWM v2
- Separate PWMv1 commits from "generic" and non atomic PWM code.
NOTE: Since I do not have board with PWMv1, I would like to ask somebody
for testing
- Move some imx_config_v2 code to separate functions
- Provide PWM atomic implementation (the ->apply() driver) for PWMv2 in a
single patch for better readability.
- Remove redundant PWM code (disable, enable, config callbacks)
- Update proper documentation entries
- Provide support for polarity inversion on top of atomic PWM rework
Test HW:
--------
This patch set has been tested on i.MX6q board with vanilla 4.7, 4.8 and
v4.9-rc2 kernel SHA1: 07d9a380680d1c0eb51ef87ff2eab5c994949e69
The PWM operation has been tested with pwm_bl backlight driver by changing
its brightness.
[1]: http://patchwork.ozlabs.org/patch/685402/
Lothar Wassmann (2):
pwm: print error messages with pr_err() instead of pr_debug()
pwm: core: make the PWM_POLARITY flag in DTB optional
Lukasz Majewski (8):
pwm: imx: Add separate set of pwm ops for PWMv1 and PWMv2
pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm
operation
pwm: imx: Move PWMv2 software reset code to a separate function
pwm: imx: Move PWMv2 wait for fifo slot code to a separate function
pwm: imx: Provide atomic PWM support for i.MX PWMv2
pwm: imx: Remove redundant i.MX PWMv2 code
pwm: imx: doc: Update imx-pwm.txt documentation entry
pwm: imx: Add polarity inversion support to i.MX's PWMv2
Documentation/devicetree/bindings/pwm/imx-pwm.txt | 6 +-
drivers/pwm/core.c | 26 ++-
drivers/pwm/pwm-imx.c | 255 ++++++++++++----------
3 files changed, 152 insertions(+), 135 deletions(-)
--
2.1.4
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[PATCH v2 00/10] pwm: imx: Provide atomic operation for IMX PWM driver Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:40 +0200
[PATCH v2 06/10] pwm: imx: Provide atomic PWM support for i.MX PWMv2 Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:40 +0200
[PATCH v2 04/10] pwm: imx: Move PWMv2 software reset code to a separate function Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:40 +0200
Re: [PATCH v2 04/10] pwm: imx: Move PWMv2 software reset code to a separate function Philipp Zabel <p.zabel@pengutronix.de> - 2016-11-03 10:40 +0100
[PATCH v2 02/10] pwm: imx: Add separate set of pwm ops for PWMv1 and PWMv2 Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:40 +0200
[PATCH v2 05/10] pwm: imx: Move PWMv2 wait for fifo slot code to a separate function Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:50 +0200
[PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:50 +0200
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-10-27 09:50 +0200
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 16:40 +0200
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-10-31 07:10 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lukasz Majewski <l.majewski@majess.pl> - 2016-10-31 09:20 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-10-31 10:30 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-10-31 10:40 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lukasz Majewski <l.majewski@majess.pl> - 2016-10-31 13:00 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lukasz Majewski <l.majewski@majess.pl> - 2016-11-01 07:00 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-11-01 08:20 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lukasz Majewski <l.majewski@majess.pl> - 2016-11-01 09:30 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-11-01 10:00 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lothar Waßmann <LW@KARO-electronics.de> - 2016-11-02 08:40 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-11-02 08:40 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lothar Waßmann <LW@KARO-electronics.de> - 2016-11-02 09:00 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Sascha Hauer <s.hauer@pengutronix.de> - 2016-11-02 09:10 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Lothar Waßmann <LW@KARO-electronics.de> - 2016-11-02 10:00 +0100
Re: [PATCH v2 03/10] pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation Philipp Zabel <p.zabel@pengutronix.de> - 2016-11-02 10:40 +0100
[PATCH v2 08/10] pwm: core: make the PWM_POLARITY flag in DTB optional Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:50 +0200
[PATCH v2 10/10] pwm: imx: Add polarity inversion support to i.MX's PWMv2 Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:50 +0200
[PATCH v2 07/10] pwm: imx: Remove redundant i.MX PWMv2 code Lukasz Majewski <l.majewski@majess.pl> - 2016-10-27 08:50 +0200
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