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Commit f910043c authored by Kevin Hilman's avatar Kevin Hilman Committed by Tony Lindgren
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OMAP: UART: don't resume UARTs that are not enabled. 



Add additional check to omap_uart_resume_idle() so that only
enabled (specifically, idle-enabled) UARTs are allowed to resume.
This matches the existing check in prepare idle.

Without this patch, the system will hang if a board is
configured to register only some uarts instead of all of
them and PM is enabled.

Cc: Govindraj R. <govindraj.raja@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
[tony@atomide.com: updated description]
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 0b9466cc

arch/arm/mach-omap2/serial.c

+1 −1
Original line number Diff line number Diff line
@@ -406,7 +406,7 @@ void omap_uart_resume_idle(int num) 
	struct omap_uart_state *uart;



	list_for_each_entry(uart, &uart_list, node) {

		if (num == uart->num) {

		if (num == uart->num && uart->can_sleep) {

			omap_uart_enable_clocks(uart);



			/* Check for IO pad wakeup */