[E3-hacking] [PATCH] OMAP: Fix broken omap-keypad

[Tony Lindgren]

* Janusz Krzysztofik <jkrzyszt at tis.icnet.pl> [091021 07:21]:
> Hi,
> Commit 4f5433324d1e29cf234d5b1b14782c0fc2948298 had made machines that use new 
> matrix_keypad based drivers happy while breaking those that still use old
> omap-keypad driver. The patch fixes omap-keypad device for my Amstrad Delta
> (tested) and probably 11 more OMAP1 based machines. It leaves a potential
> similiar problem on OMAP2 H4 machine not addressed.
> 
> I would say that those new, matrix_keypad based drivers should be corrected to
> simply not include arch/arm/plat-omap/include/mach/keypad.h, which should keep
> serving omap-keypad based machines until they are all upgraded to use 
> matrix_keypad.

Hmm, yeah let's try to do that instead.

 
> Created against linux-2.6.32-rc5
> 
> Signed-off-by: Janusz Krzysztofik <jkrzyszt at tis.icnet.pl>
> 
> ---
> --- linux-2.6.32-rc5/arch/arm/plat-omap/include/mach/keypad.h.orig	2009-10-16 02:41:50.000000000 +0200
> +++ linux-2.6.32-rc5/arch/arm/plat-omap/include/mach/keypad.h	2009-10-21 15:32:37.000000000 +0200
> @@ -10,7 +10,9 @@
>  #ifndef ASMARM_ARCH_KEYPAD_H
>  #define ASMARM_ARCH_KEYPAD_H
>  
> +#ifndef CONFIG_ARCH_OMAP1
>  #include <linux/input/matrix_keypad.h>
> +#endif
>  
>  struct omap_kp_platform_data {
>  	int rows;

I guess we only need to patch a few board-*.c files currently,
maybe only board-rx51.c?


> @@ -38,5 +40,11 @@ struct omap_kp_platform_data {
>  #define KEY_PERSISTENT		0x00800000
>  #define KEYNUM_MASK		0x00EFFFFF
>  
> +#ifdef CONFIG_ARCH_OMAP1
> +#define KEY(col, row, val) (((col) << 28) | ((row) << 24) | (val))
> +#define PERSISTENT_KEY(col, row) (((col) << 28) | ((row) << 24) | \
> +						KEY_PERSISTENT)
> +#endif
> +
>  #endif
>  

Maybe we should add:

#warning: Please update the board to use matrix_keypad.h instead

Regards,

Tony