backlight: fix pwm_bl.c when multiple PWM backlights exist
When multiple PWMs are used as backlights, the current code uses pdev->name as the backlight name when registering, which will be conflicting, use dev_name() instead. Signed-off-by: Peter Edwards <sweetlilmre@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
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@ -3,7 +3,7 @@
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*
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* simple PWM based backlight control, board code has to setup
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* 1) pin configuration so PWM waveforms can output
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* 2) platform_data casts to the PWM id (0/1/2/3 on PXA)
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* 2) platform_data being correctly configured
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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@ -97,7 +97,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
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} else
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dev_dbg(&pdev->dev, "got pwm for backlight\n");
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bl = backlight_device_register(pdev->name, &pdev->dev,
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bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
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pb, &pwm_backlight_ops);
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if (IS_ERR(bl)) {
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dev_err(&pdev->dev, "failed to register backlight\n");
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