Commit 022b5a3c authored by Stefan Wahren's avatar Stefan Wahren Committed by Greg Kroah-Hartman
Browse files

staging: vchiq_arm: Use define for doorbell irq 



The interrupt handler uses a magic number to check that the doorbell
was rung. Better replace this number with official Broadcom define.

Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1621105859-30215-9-git-send-email-stefan.wahren@i2se.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2f440843

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c

+3 −1
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ 
#define BELL0	0x00

#define BELL2	0x08



#define ARM_DS_ACTIVE	BIT(2)



struct vchiq_2835_state {

	int inited;

	struct vchiq_arm_state arm_state;
@@ -269,7 +271,7 @@ vchiq_doorbell_irq(int irq, void *dev_id) 
	/* Read (and clear) the doorbell */

	status = readl(g_regs + BELL0);



	if (status & 0x4) {  /* Was the doorbell rung? */

	if (status & ARM_DS_ACTIVE) {  /* Was the doorbell rung? */

		remote_event_pollall(state);

		ret = IRQ_HANDLED;

	}