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Diffstat (limited to 'include/linux/serial_sci.h')
-rw-r--r--include/linux/serial_sci.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index 4ca130a90ea5..8bffe9ae2ca0 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -56,6 +56,8 @@ enum {
SCIx_TXI_IRQ,
SCIx_BRI_IRQ,
SCIx_NR_IRQS,
+
+ SCIx_MUX_IRQ = SCIx_NR_IRQS, /* special case */
};
enum {
@@ -82,6 +84,11 @@ enum {
[SCIx_BRI_IRQ] = (irq), \
}
+#define SCIx_IRQ_IS_MUXED(port) \
+ ((port)->cfg->irqs[SCIx_ERI_IRQ] == \
+ (port)->cfg->irqs[SCIx_RXI_IRQ]) || \
+ ((port)->cfg->irqs[SCIx_ERI_IRQ] && \
+ !(port)->cfg->irqs[SCIx_RXI_IRQ])
/*
* SCI register subset common for all port types.
* Not all registers will exist on all parts.