From 4984eeaf71f033d1ca6b644e4fcdef4b3e6a97b4 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 27 Oct 2014 08:39:26 -0700 Subject: ARM: OMAP3+: PRM: add generic API for reconfiguring I/O chain This adds a generic API for reconfiguring the I/O chain. The implementation will call the SoC specific function registered during init time. The SoC specific reconfigure functions are also made static, as they don't need to be accessed outside the PRM driver itself. Signed-off-by: Tero Kristo Acked-by: Paul Walmsley Tested-by: Nishanth Menon [tony@atomide.com: updated for recent omap3 prcm fixes] Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/prm_common.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'arch/arm/mach-omap2/prm_common.c') diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index ce0434a16ad6..be40824acf5f 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -486,6 +486,22 @@ int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset) return prm_ll_data->is_hardreset_asserted(shift, part, prm_mod, offset); } +/** + * omap_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain + * + * Clear any previously-latched I/O wakeup events and ensure that the + * I/O wakeup gates are aligned with the current mux settings. + * Calls SoC specific I/O chain reconfigure function if available, + * otherwise does nothing. + */ +void omap_prm_reconfigure_io_chain(void) +{ + if (!prcm_irq_setup || !prcm_irq_setup->reconfigure_io_chain) + return; + + prcm_irq_setup->reconfigure_io_chain(); +} + /** * prm_register - register per-SoC low-level data with the PRM * @pld: low-level per-SoC OMAP PRM data & function pointers to register -- cgit v1.2.3