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Commit afbac60b authored by Illia Smyrnov's avatar Illia Smyrnov Committed by Dmitry Torokhov
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Input: omap-keypad - clear interrupts on open 



According to TRM, the recommended way for keyboard controller
initialization is clear the interrupt-status register, then set up
certain keyboard events for generating an interrupt request and
set up expected source of wake-up event that generates a wake-up
request.

Signed-off-by: default avatarIllia Smyrnov <illia.smyrnov@ti.com>
Reviewed-by: default avatarFelipe Balbi <balbi@ti.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent c683da3e

drivers/input/keyboard/omap4-keypad.c

+2 −1
Original line number Diff line number Diff line
@@ -185,8 +185,9 @@ static int omap4_keypad_open(struct input_dev *input) 
			(OMAP4_VAL_PVT << OMAP4_DEF_CTRL_PTV_SHIFT));

	kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,

			OMAP4_VAL_DEBOUNCINGTIME);

	/* clear pending interrupts */

	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,

			OMAP4_VAL_IRQDISABLE);

			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));

	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,

			OMAP4_DEF_IRQENABLE_EVENTEN |

				OMAP4_DEF_IRQENABLE_LONGKEY);