Platform PWM backlight data provided by board's device tree should be complete enough to successfully request a pwm device using pwm_get() API.
Based on initial implementation done by Dmitry Eremin-Solenikov. Reported-by: Dmitry Eremin-Solenikov <[email protected]> Signed-off-by: Vladimir Zapolskiy <[email protected]> Cc: Thierry Reding <[email protected]> Cc: Jingoo Han <[email protected]> Cc: Bryan Wu <[email protected]> Cc: Lee Jones <[email protected]> --- drivers/video/backlight/pwm_bl.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index cb5ae4c..dd7aaf7 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -272,15 +272,15 @@ static int pwm_backlight_probe(struct platform_device *pdev) } pb->pwm = devm_pwm_get(&pdev->dev, NULL); - if (IS_ERR(pb->pwm)) { + if (IS_ERR(pb->pwm) && !pdev->dev.of_node) { dev_err(&pdev->dev, "unable to request PWM, trying legacy API\n"); - pb->pwm = pwm_request(data->pwm_id, "pwm-backlight"); - if (IS_ERR(pb->pwm)) { - dev_err(&pdev->dev, "unable to request legacy PWM\n"); - ret = PTR_ERR(pb->pwm); - goto err_alloc; - } + } + + if (IS_ERR(pb->pwm)) { + dev_err(&pdev->dev, "unable to request PWM\n"); + ret = PTR_ERR(pb->pwm); + goto err_alloc; } dev_dbg(&pdev->dev, "got pwm for backlight\n"); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
