From: Lokesh Vutla lokeshvutla@ti.com
[ Upstream commit 1f0f1e80fdd3aa9631f6c22cda4f8550cfcfcc3e ]
When there are other PWM controllers enabled along with pwm-lp3943, pwm-lp3942 is failing to probe with -EEXIST error. This is because other PWM controllers are probed first and assigned PWM base 0 and pwm-lp3943 is requesting for 0 again.
In order to avoid this, assign the chip base with -1, so that it is dynamically allocated.
Fixes: af66b3c0934e ("pwm: Add LP3943 PWM driver") Signed-off-by: Lokesh Vutla lokeshvutla@ti.com Reviewed-by: Uwe Kleine-König <u.kleine-könig@pengutronix.de> Signed-off-by: Thierry Reding thierry.reding@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pwm/pwm-lp3943.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/pwm/pwm-lp3943.c b/drivers/pwm/pwm-lp3943.c index 15b40a8bc4fb..5055ba2c6c94 100644 --- a/drivers/pwm/pwm-lp3943.c +++ b/drivers/pwm/pwm-lp3943.c @@ -278,6 +278,7 @@ static int lp3943_pwm_probe(struct platform_device *pdev) lp3943_pwm->chip.dev = &pdev->dev; lp3943_pwm->chip.ops = &lp3943_pwm_ops; lp3943_pwm->chip.npwm = LP3943_NUM_PWMS; + lp3943_pwm->chip.base = -1;
platform_set_drvdata(pdev, lp3943_pwm);