From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932686AbaCQSix (ORCPT ); Mon, 17 Mar 2014 14:38:53 -0400 Received: from top.free-electrons.com ([176.31.233.9]:60095 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932214AbaCQSiu (ORCPT ); Mon, 17 Mar 2014 14:38:50 -0400 From: Alexandre Belloni To: Bryan Wu Cc: Richard Purdie , linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH] leds: pwm: set polarity on non DT platforms Date: Mon, 17 Mar 2014 19:38:41 +0100 Message-Id: <1395081521-16568-1-git-send-email-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 1.8.3.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Set inversed polarity when .active_low is set in the platform_data. With device tree, this is taken care of by of_pwm_xlate_with_flags(), called from of_pwm_get(). Signed-off-by: Alexandre Belloni --- drivers/leds/leds-pwm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 605047428b5a..09681556a6aa 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -180,6 +180,11 @@ static int led_pwm_probe(struct platform_device *pdev) led_dat->cdev.max_brightness = cur_led->max_brightness; led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; + if (led_dat->active_low) + if (pwm_set_polarity(led_dat->pwm, + PWM_POLARITY_INVERSED)) + dev_err(&pdev->dev, "impossible to change polarity"); + led_dat->can_sleep = pwm_can_sleep(led_dat->pwm); if (led_dat->can_sleep) INIT_WORK(&led_dat->work, led_pwm_work); -- 1.8.3.2