From 8314f532ebd55f1d6dc23b143cda3c1714ffe201 Mon Sep 17 00:00:00 2001 From: Shiraz Hashim Date: Fri, 13 Jul 2012 00:11:10 -0700 Subject: Input: spear_keyboard - reconfigure operating frequency on suspend On some platform it may happen that the input clock to keyboard may change during suspend, thus impacting its wakeup capability. There is no means for keyboard driver to know this frequency before hand. Hence introduce a platform data 'suspended_rate' which indicates the frequency during suspend at which keyboard operates. Accordingly reprogram keyboard while going into suspend and restore original configuration at the time of resume. Signed-off-by: Shiraz Hashim Signed-off-by: Dmitry Torokhov --- arch/arm/plat-spear/include/plat/keyboard.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/plat-spear') diff --git a/arch/arm/plat-spear/include/plat/keyboard.h b/arch/arm/plat-spear/include/plat/keyboard.h index 0562f134621d..9248e3a7e333 100644 --- a/arch/arm/plat-spear/include/plat/keyboard.h +++ b/arch/arm/plat-spear/include/plat/keyboard.h @@ -149,6 +149,7 @@ int _name[] = { \ * keymap: pointer to keymap data (table and size) * rep: enables key autorepeat * mode: choose keyboard support(9x9, 6x6, 2x2) + * suspended_rate: rate at which keyboard would operate in suspended mode * * This structure is supposed to be used by platform code to supply * keymaps to drivers that implement keyboards. @@ -157,6 +158,7 @@ struct kbd_platform_data { const struct matrix_keymap_data *keymap; bool rep; unsigned int mode; + unsigned int suspended_rate; }; #endif /* __PLAT_KEYBOARD_H */ -- cgit v1.2.3