AM3358: How to interface Keypad to am3358

Hello,

We would need some more information on this:

1. what interface are you using for the keypad?

2. which OS is your SW running on?

3. what exact problems are you having?

Thanks and regards,

Jianzhong

Hi Jianzhong Xu  Thanks for the replay actually i have an idea how to interface keypad with am5728 board.but i want to know how it can be done for am3358 board and i had a snippet shown in below for am5728 in which it is done in dra7.dtsi but for am3358 in which file it has to be done.

keypad: keypad@4ae1c000 {
                        compatible = "ti,omap4-keypad";
                        reg = <0x4ae1c000 0x80>;
                        keypad,num-rows = <3>;
                        keypad,num-columns = <4>;
                        interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
                        ti,hwmods = "kbd";
                        linux,keymap = <0x00000041 0x00010042 0x00020043 0x00030044
                        0x01000045 0x01010046 0x01020047 0x01030048
                        0x02000049 0x0201004a 0x0202004b 0x0203004c>;
        };

&keypad {
    status = "okay";
}

and coming to OS i am using ti-processor generated zimage and dts files

Thanks in advance

So are you using the SPI interface for your keypad?

Yes I am using spi but unable to do it with am3358.need some help

Ok. Let me loop in the SPI subject owner.

Hey Raj,

I am the SPI subject owner, more than happy to assist you with this!  I am currently getting up to speed on your issue and researching to see if I can find if any others have encountered something similar.  In the meantime, may I ask have there been any developments or changes to the problem your facing on your end?

Best regards,

Andrew

Hi Andrew Shutzberg Thanks for your replay .I been trying to resolve the issue but i can't find any resources regarding my issue .it could be more helpful if you can guide me to resolve the issue.please just tell me if you find any resource.

Thanks in Advance

Hi Ti forum i am struggling  with this issue and i still cannot able resolve the issue .please can anyone help me.i am in trouble.

Hello Raj,

I apologize for the delay, I was out of office.  Upon investigating this issue I have found this E2E thread that describes a similar issue with AM5728: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/634114/linux-am5728-keypad-driver-not-working . Please review the two suggested (green highlighted) answers.  Let me know if this helps, or if there are any additional developments on your end.

-Andrew

Hi Andrew

Thanks for the replay I have gone through the link and my doubt is the above link is for am57xx board.but my board is am335x beaglebone black both are different boards.can I apply the same procedure which is given for am57xx to my board am335x.please answer i am in doubt.

Thanks in Advance