tree 203fe72f2f30bc3524f5dc3ca64724e8b175d780
parent 62795a0d81970bfdd5866ffd87160c670a6b344c
author Ian Abbott <abbotti@mev.co.uk> 1404395199 +0100
committer Tomi Valkeinen <tomi.valkeinen@ti.com> 1409056611 +0300

video: da8xx-fb: preserve display width when changing HSYNC

When looking at this driver for a client, I noticed the code that
configures the HSYNC pulse clobbers the display width in the same
register.  It only preserves the MS part of the width in bit 3 and zeros
the LS part of the width in bits 9 to 4.  This doesn't matter during
initialization as the width is configured afterwards, but subsequent use
of the FBIPUT_HSYNC ioctl would clobber the width.

Preserve bits 9 to 0 of LCD_RASTER_TIMING_0_REG when configuring the
horizontal sync.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>