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pwm: bcm2835: Support for polarity setting via DT

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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>
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Stefan Wahren 2017-08-12 12:19:44 +02:00 committed by Thierry Reding
parent 46421d9d8e
commit 8a88b2a201
1 changed files with 2 additions and 0 deletions
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drivers/pwm/pwm-bcm2835.c
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@ -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);