> On Feb 22, 2018, at 1:41 PM, Drew Fustini wrote:
>
> Hi, it looks like the ra8875 driver is included, at least for the
> kernel I'm running:
>
> debian@beaglebone:~$ modinfo
> /lib/modules/4.16.0-rc2-bone3/kernel/drivers/staging/fbtft/fb_ra8875.ko.xz
> filename:
> /lib/modules/4.16.0-rc2-bone3/kernel/drivers/staging/fbtft/fb_ra8875.ko.xz
> license:GPL
> author: Pf@nne
> description:FB driver for the RA8875 LCD Controller
> alias: platform:ra8875
> alias: spi:ra8875
> alias: platform:fb_ra8875
> alias: spi:fb_ra8875
> alias: of:N*T*Craio,ra8875C*
> alias: of:N*T*Craio,ra8875
> depends:fbtft
> staging:Y
> intree: Y
> name: fb_ra8875
> vermagic: 4.16.0-rc2-bone3 mod_unload modversions ARMv7 p2v8
>
> fyi - I installed that kernel with this command:
> sudo /opt/scripts/tools/update_kernel.sh --bone-channel --exp
>
> This page from the fbtft wiki might be of interest:
> https://github.com/notro/fbtft/wiki/fbtft_device#parameters
>
> Here is example of the parameters one person uses:
> https://github.com/notro/fbtft/issues/476
>
> I'm curious which RA8875 display do you have?
>
> I do support for Adafruit so I could request this one to try it out:
> https://www.adafruit.com/product/1590
>
> thanks,
> drew
>
>> On Wed, Feb 21, 2018 at 9:48 PM, evilwulfie wrote:
>> How would one know if if a particular driver is already build in the bone
>> kernel fb_ra8875.c
To know before installing, the last commit on any of the beagleboard kernels is
the defconfig. Pick the kernel branch on github and go to the last commit.
https://github.com/beagleboard/linux/commit/960d4b4bc998942d0642df2246a79c6cd5e9eb5d
Search for RA8875.
>>
>>
>> https://git.kernel.org/cgit/linux/kernel/git/gregkh/staging.git/tree/drivers/staging/fbtft?h=staging-testing
>>
>> root@bone:/home/debian# modinfo fbtft
>> filename:
>> /lib/modules/4.9.78-ti-r94/kernel/drivers/staging/fbtft/fbtft.ko
>> license:GPL
>> depends:
>> staging:Y
>> intree: Y
>> vermagic: 4.9.78-ti-r94 SMP preempt mod_unload modversions ARMv7 p2v8
>> parm: debug:override device debug level (ulong)
>>
>>
>> If the driver is already compiled in how would one add it to a device tree
>> file for use
>>
>> spi driven device but no dc pin, first command byte upper bits select either
>> a command or data and w/r
>>
>> kinda a different animal than most tft displays
>>
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