Re: [beagleboard] LCD4 Cape Overlay Goof?
On 12/4/2014 5:47 PM, Robert Nelson wrote: On Thu, Dec 4, 2014 at 5:35 PM, Charles Steinkuehler char...@steinkuehler.net wrote: There seems to be a problem with the LCD4-00A1 cape overlay. The overlay includes support for four buttons, while the actual board seems to have five, and one of the four GPIO pins configured in the overlay is *NOT* actually used by the hardware (per the schematic). Before I send in a patch, it seems like this would have been identified and fixed before now. Am I just missing the proper overlay somehow? I am building the kernel using the scripts from (tag 3.8.13-bone68): It's 5 key's, when i redid this for v3.14.x and tested lcd4-01-00a1/4dcape-43(t)... https://github.com/RobertCNelson/dtb-rebuilder/blob/3.14-ti/src/arm/am335x-bone-common-pinmux.dtsi#L355 That matches what I expect based on the schematic, and differs from the 3.8.13 overlay. It's a travel day for me, but I'll format a patch for 3.8.13 and send it out soonish. -- Charles Steinkuehler char...@steinkuehler.net -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] LCD4 Cape Overlay Goof?
There seems to be a problem with the LCD4-00A1 cape overlay. The
overlay includes support for four buttons, while the actual board seems
to have five, and one of the four GPIO pins configured in the overlay is
*NOT* actually used by the hardware (per the schematic).
Before I send in a patch, it seems like this would have been identified
and fixed before now. Am I just missing the proper overlay somehow? I
am building the kernel using the scripts from (tag 3.8.13-bone68):
https://github.com/RobertCNelson/bb-kernel/tree/am33x-v3.8
Details:
Per the schematic
https://github.com/CircuitCo/BeagleBone-LCD4-RevA1/blob/master/BeagleBone-LCD4-RevA1-schematic.pdf
The hardware buttons are:
Button : Pin : GPIO
---+---+-
Left : P9.15 : GPIO1_16
Right : P9.23 : GPIO1_17
Up : P9.16 : GPIO1_19
Enter : P9.24 : GPIO0_15
Down : P9.30 : GPIO3_16
...but in the DTS (from tag 3.8.13-bone68) I see:
exclusive-use =
Only 4 GPIO pins for buttons, and one of them is wrong
(P9.21, gpio0_3)
bone_lcd4_cape_keys_00A2_pins:
Same as above (only 4 pins, and one of them is wrong)
gpio_keys {
Is correct...lists 5 buttons with the proper gpio pins
--
Charles Steinkuehler
char...@steinkuehler.net
--
For more options, visit http://beagleboard.org/discuss
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Re: [beagleboard] LCD4 Cape Overlay Goof?
On Thu, Dec 4, 2014 at 5:35 PM, Charles Steinkuehler char...@steinkuehler.net wrote: There seems to be a problem with the LCD4-00A1 cape overlay. The overlay includes support for four buttons, while the actual board seems to have five, and one of the four GPIO pins configured in the overlay is *NOT* actually used by the hardware (per the schematic). Before I send in a patch, it seems like this would have been identified and fixed before now. Am I just missing the proper overlay somehow? I am building the kernel using the scripts from (tag 3.8.13-bone68): It's 5 key's, when i redid this for v3.14.x and tested lcd4-01-00a1/4dcape-43(t)... https://github.com/RobertCNelson/dtb-rebuilder/blob/3.14-ti/src/arm/am335x-bone-common-pinmux.dtsi#L355 Regards, -- Robert Nelson http://www.rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
