From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit 2c25b07e5ec119cab609e41407a1fb3fa61442f5 ]
The newer 2711 and 7211 chips have two PWM controllers and failure to dynamically allocate the PWM base would prevent the second PWM controller instance being probed for succeeding with an -EEXIST error from alloc_pwms().
Fixes: e5a06dc5ac1f ("pwm: Add BCM2835 PWM driver") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Acked-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Reviewed-by: Nicolas Saenz Julienne nsaenzjulienne@suse.de Signed-off-by: Thierry Reding thierry.reding@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pwm/pwm-bcm2835.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c index b4c7f956b6fa6..388a9fa5c1d24 100644 --- a/drivers/pwm/pwm-bcm2835.c +++ b/drivers/pwm/pwm-bcm2835.c @@ -160,6 +160,7 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
pc->chip.dev = &pdev->dev; pc->chip.ops = &bcm2835_pwm_ops; + pc->chip.base = -1; pc->chip.npwm = 2;
platform_set_drvdata(pdev, pc);