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27 March 2024, 02:37:15 UTC
Revision e715eb2e73918f4cefbba0b717ff8902e8030b39 authored by Catalin Marinas on 28 April 2014, 16:08:37 UTC, committed by Catalin Marinas on 04 May 2014, 10:35:29 UTC 
vexpress: Initialise the sysregs before setting up the clocks
 
Following arm64 commit bc3ee18a7a57 (arm64: init: Move of_clk_init to
time_init()), vexpress_osc_of_setup() is called via of_clk_init() long
before initcalls are issued. Initialising the vexpress oscillators
requires the vespress sysregs to be already initialised, so this patch
adds an explicit call to vexpress_sysreg_of_early_init() in vexpress
oscillator setup function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Cc: Mike Turquette <mturquette@linaro.org>
1 parent 7a8d1ec
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Tip revision: e715eb2e73918f4cefbba0b717ff8902e8030b39 authored by Catalin Marinas on 28 April 2014, 16:08:37 UTC
vexpress: Initialise the sysregs before setting up the clocks
Tip revision: e715eb2
w9966.txt 
W9966 Camera driver, written by Jakob Kemi (jakob.kemi@telia.com)

After a lot of work in softice & wdasm, reading .pdf-files and tiresome
trial-and-error work I've finally got everything to work. I needed vision for a
robotics project so I borrowed this camera from a friend and started hacking.
Anyway I've converted my original code from the AVR 8bit RISC C/ASM code into
a working Linux driver.

To get it working simply configure your kernel to support
parport, ieee1284, video4linux and w9966

If w9966 is statically linked it will always perform aggressive probing for
the camera. If built as a module you'll have more configuration options.

Options:
 modprobe w9966.o pardev=parport0(or whatever) parmode=0 (0=auto, 1=ecp, 2=epp)
voila!

you can also type 'modinfo -p w9966.o' for option usage
(or checkout w9966.c)

The only thing to keep in mind is that the image format is in Y-U-Y-V format
where every two pixels take 4 bytes. In SDL (www.libsdl.org) this format
is called VIDEO_PALETTE_YUV422 (16 bpp).

A minimal test application (with source) is available from:
  http://www.slackwaresupport.com/howtos/Webcam-HOWTO

The slow framerate is due to missing DMA ECP read support in the
parport drivers. I might add working EPP support later.

Good luck!
    /Jakob Kemi
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