On 06/19/12 09:47, the mail apparently from Scott Bambrough included:
- Andy
Hi -
Sorry for the delayed reply.
We only test the kernel configured with omap4plus defconfig (ie, make ARCH=arm omap4plus_defconfig to create .config), which works on omap4430, 4460 Panda and omap5432 dev boards.
We don't have access to any Blaze devices, so we neither target compatibility with that nor could test against it.
Having said that, you sure do pretty well from your log... edid is coming, both Alsa cards are probed.
We did work on HDMI hpd since your mail, removing the enable / disable imbalance that provokes the gpio error. It might be worth trying again with tilt-3.4 branch we created since then. The divide by zero just seems to be coming in the HDMI error path.
-Andy
On 12-06-15 12:44 AM, Ramakrishnan Muthukrishnan wrote:
Hi,
I am trying to boot the tilt-tracking branch of the TI OMAP kernel git repository. The silicon is OMAP4430 ES2.1 on TI Blaze platform. I see a kernel crash while booting. The logs also show that the HDMI GPIOs requests are not successful.
What I am looking for is a fairly recent kernel on which I can base the rest of the userspace (media) application on. Any help on which branch to look for, will be greatly appreciated.
Thanks Ramakrishnan
[ 4.836944] Console: switching to colour frame buffer device 240x67 [ 4.892089] sdp4430_panel_enable_hdmi: Cannot request HDMI GPIOs [ 4.898437] omapdss HDMI error: failed to enable GPIO's [ 4.903991] omapdss error: failed to power on [ 4.908599] omapfb omapfb: Failed to enable display 'hdmi' [ 4.914398] omapfb omapfb: failed to initialize default display [ 4.921325] omapfb omapfb: failed to setup omapfb [ 4.926330] omapfb: probe of omapfb failed with error -16 [ 4.932586] VANA: incomplete constraints, leaving on [ 4.938934] VDAC: incomplete constraints, leaving on [ 4.945983] twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:03 UTC (946684803) [ 4.954620] ALSA device list: [ 4.957733] #0: SDP4430 [ 4.960540] #1: OMAPHDMI [ 4.997589] Division by zero in kernel. [ 4.997619] Backtrace: [ 4.997650] [<c0012d4c>] (dump_backtrace+0x0/0x118) from [<c04ec94c>] (dump_stack+0x20/0x24) [ 4.997650] r6:00000000 r5:f0800000 r4:ee21dd80 r3:00000000 [ 4.997680] [<c04ec92c>] (dump_stack+0x0/0x24) from [<c0012ea8>] (__div0+0x20/0x28) [ 4.997711] [<c0012e88>] (__div0+0x0/0x28) from [<c0259b14>] (Ldiv0+0x8/0x10) [ 4.997772] [<c0287348>] (cfb_imageblit+0x0/0x46c) from [<c0280828>] (soft_cursor+0x1b8/0x1c4) [ 4.997772] [<c0280670>] (soft_cursor+0x0/0x1c4) from [<c02801b0>] (bit_cursor+0x43c/0x44c) [ 4.997802] [<c027fd74>] (bit_cursor+0x0/0x44c) from [<c027a920>] (fb_flashcursor+0x108/0x124) [ 4.997802] [<c027a818>] (fb_flashcursor+0x0/0x124) from [<c00562e4>] (process_one_work+0x274/0x420) [ 4.997833] [<c0056070>] (process_one_work+0x0/0x420) from [<c005681c>] (worker_thread+0x1bc/0x2bc) [ 4.997863] [<c0056660>] (worker_thread+0x0/0x2bc) from [<c005c93c>] (kthread+0x98/0xa4) [ 4.997863] [<c005c8a4>] (kthread+0x0/0xa4) from [<c0041300>] (do_exit+0x0/0x790) [ 4.997894] r7:00000013 r6:c0041300 r5:c005c8a4 r4:ee093ed8 [ 5.192901] Division by zero in kernel. [ 5.192901] Backtrace:
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