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Message-ID: <20201030134135.28730-1-lokeshvutla@ti.com> Date: Fri, 30 Oct 2020 19:11:35 +0530 From: Lokesh Vutla <lokeshvutla@...com> To: Thierry Reding <thierry.reding@...il.com>, <u.kleine-koenig@...gutronix.de> CC: Lee Jones <lee.jones@...aro.org>, <linux-pwm@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Lokesh Vutla <lokeshvutla@...com>, Sekhar Nori <nsekhar@...com> Subject: [PATCH] pwm: lp3943: Dynamically allocate pwm chip base 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 controller is probed first and assigned pwmchip 0 and pwm-lp3943 is requesting for 0 again. In order to avoid this, assign the chip base with -1, so that id is dynamically allocated. Fixes: af66b3c0934e ("pwm: Add LP3943 PWM driver") Signed-off-by: Lokesh Vutla <lokeshvutla@...com> --- 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 7551253ada32..bf3f14fb5f24 100644 --- a/drivers/pwm/pwm-lp3943.c +++ b/drivers/pwm/pwm-lp3943.c @@ -275,6 +275,7 @@ 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); -- 2.28.0
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