linux-kernel - [PATCHv4 0/4] pwm: imx: support output polarity inversion

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Date:	Thu, 12 Jun 2014 14:52:44 +0200
From:	Lothar Waßmann <LW@...O-electronics.de>
To:	Thierry Reding <thierry.reding@...il.com>,
	linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org,
	Lothar Waßmann <LW@...O-electronics.de>,
	Shawn Guo <shawn.guo@...aro.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Arnd Bergmann <arnd@...db.de>,
	Tony Prisk <linux@...sktech.co.nz>,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCHv4 0/4] pwm: imx: support output polarity inversion

This patch series adds support for polarity inversion to the pwm-imx
driver. The patches have been tested on i.MX6, i.MX53 and with the
ti-ehrpwm.c driver.

Changes wrt. v2:
- make the use of '#pwm-cells = <3>' optional, so that the change does
  not break existing DT blobs as suggested by Arnd Bergmann and Sascha
  Hauer.

Changes wrt. v3:
- implemented the approach suggested by Sascha Hauer 
- don't modify struct pwm_ops in the imx_pwm probe function

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