Messages in this thread | | | Date | Wed, 21 Nov 2012 15:04:42 +0100 | From | roman@hodek ... |
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Hi,
I've found your discussion about a gma500 Atom E6xx graphics device with PCI ID 0x4108. I'm currently working on such a box, too.
There are two variants of my hardware, one with LVDS output for smaller panels, and one with a Chrontel 7308 SDVO->LVDS converter for larger ones. My HW developer says the platform is called "Little Bay" and similar to Queens Bay.
Anyway, the small LVDS one works fine so far, at least when I hardcode the panel resolution (there's no VBT etc. in BIOS yet). However, the SDVO one stays black. No wonder, as there's no SDVO code in the Oaktrail part of the driver.
So I tried to add this... and simply started with adding a call to psb_intel_sdvo_init() in oaktrail_output_init(), to see what happens. The result: it doesn't find anything :-( I could track problems down to the point that the SDVO i2c registers seem to be the wrong ones.
At the known offsets for i2c regs (0x5100 and on) I see only 0xffffffff, so probably these registers are not present or somewhere else on my platform.
Does anybody of you have any infos on this? How can I get further? Thanks for any help in advance!
Roman
PS: Please keep me in Cc:, I'm not subscribed to LKML.
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