fbdev: sh_mobile_lcdc: Don't acknowlege interrupts unintentionally

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The LDINTR register caries both interrupt enable and interrupt status
bits. When setting or clearing interrupt enable bits, write all status
bits to 1 to avoid acknowledging interrupts by mistake.

When acknowledging interrupts, write 1 to all non-triggered interrupt
bits to avoid losing interrupts.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

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Laurent Pinchart 2011-07-13 12:13:47 +02:00

parent ce1c0b0873

commit dc48665fae

1 changed files with 8 additions and 12 deletions

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drivers/video/sh_mobile_lcdcfb.c

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