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authorTero Kristo <t-kristo@ti.com>2014-10-27 15:39:26 (GMT)
committerTony Lindgren <tony@atomide.com>2014-10-27 15:39:26 (GMT)
commit4984eeaf71f033d1ca6b644e4fcdef4b3e6a97b4 (patch)
treec907d6f5a185dbf0df3af720d2b0acc3b2716977 /arch/arm/mach-omap2/prm_common.c
parent28db51f428bf284dc12a60a0c0a12fa522a530f5 (diff)
downloadlinux-4984eeaf71f033d1ca6b644e4fcdef4b3e6a97b4.tar.xz
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 <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> [tony@atomide.com: updated for recent omap3 prcm fixes] Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/prm_common.c')
-rw-r--r--arch/arm/mach-omap2/prm_common.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index ce0434a..be40824 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -487,6 +487,22 @@ int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 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
*