serial: bfin_5xx: split uart RX lock from uart port lock to avoid deadlock

[sfrench/cifs-2.6.git] / arch / blackfin / include / asm / bfin_serial.h

diff --git a/arch/blackfin/include/asm/bfin_serial.h b/arch/blackfin/include/asm/bfin_serial.h
index 1ff9f1468c02fd70c2929b90145daafeb59a0831..7dbc664eab1e2925baf95b8cc949cff65b4a4091 100644 (file)
--- a/arch/blackfin/include/asm/bfin_serial.h
+++ b/arch/blackfin/include/asm/bfin_serial.h
@@ -10,6 +10,7 @@
 #define __BFIN_ASM_SERIAL_H__
 
 #include <linux/serial_core.h>
+#include <linux/spinlock.h>
 #include <mach/anomaly.h>
 #include <mach/bfin_serial.h>
 
@@ -41,6 +42,7 @@ struct bfin_serial_port {
        struct circ_buf rx_dma_buf;
        struct timer_list rx_dma_timer;
        int rx_dma_nrows;
+       spinlock_t rx_lock;
        unsigned int tx_dma_channel;
        unsigned int rx_dma_channel;
        struct work_struct tx_dma_workqueue;