From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Sat, 12 Aug 2017 10:19:44 +0000 (+0200)
Subject: pwm: bcm2835: Support for polarity setting via DT
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8a88b2a2017d1e7e80db53080baff591fd454722;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

pwm: bcm2835: Support for polarity setting via DT

This adds support for the third (optional) pwm cell to specify the
polarity, which is needed by display backlights for example.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index c5dbf16d810b..db001cba937f 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -167,6 +167,8 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &bcm2835_pwm_ops;
 	pc->chip.npwm = 2;
+	pc->chip.of_xlate = of_pwm_xlate_with_flags;
+	pc->chip.of_pwm_n_cells = 3;
 
 	platform_set_drvdata(pdev, pc);