Messages in this thread |  | | From | Lukasz Majewski <> | Subject | [PATCH v3 00/11] pwm: imx: Provide atomic operation for IMX PWM driver | Date | Tue, 1 Nov 2016 08:10:19 +0100 |
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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:
- Remove ipg clock enable/disable code (as proposed by Sascha Hauer) - this is the most notable change for v3
- Provide different pwm ops for PWMv1 and PWMv2
- 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 v4.9-rc3 kernel SHA1: a909d3e636995ba7c349e2ca5dbb528154d4ac30
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
Sascha Hauer (1): pwm: imx: remove ipg clock
Documentation/devicetree/bindings/pwm/imx-pwm.txt | 6 +- drivers/pwm/core.c | 26 +-- drivers/pwm/pwm-imx.c | 247 ++++++++++------------ 3 files changed, 134 insertions(+), 145 deletions(-)
-- 2.1.4
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