Messages in this thread |  | | Date | Thu, 17 Oct 2013 14:49:57 +0800 | From | Mark Zhang <> | Subject | How to set fops in "struct platform_pwm_backlight_data"? |
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Hi,
This is the first time I send mail to linux-pwm, I didn't read through the mails in this list, so if somebody already asked this question, I'm sorry about that.
I wanna set some fops in "struct platform_pwm_backlight_data". But the currrent probe function in pwm_bl.c says:
------- if (!data) { ret = pwm_backlight_parse_dt(&pdev->dev, &defdata); if (ret < 0) { dev_err(&pdev->dev, "failed to find platform data\n"); return ret; }
data = &defdata; } -------
This looks like if we set the platform data for pwm backlight device, "pwm_backlight_parse_dt" will never have a chance to be called, which means the stuffs I defined in backlight DT node will be ignored.
If I don't set the platform data for pwm backlight device, according to the pwm_backlight_probe, I will never have a chance to set some fops which I need(like "notify", "check_fb"...).
So, what I suppose to do now? Maybe there is a way to set function pointers in DT?
Mark
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