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Commit 9debc26b authored by Mao Jinlong's avatar Mao Jinlong
Browse files

byte-cntr: Configure byte-cntr irq as a wake up irq 



Configure byte-cntr irq as a wake up irq to ensure that device can
wake up from suspend when the etr data reaches to block_size.

Change-Id: I526069e582329954cc65b5711645423356e4c69a
Signed-off-by: default avatarMao Jinlong <jinlmao@codeaurora.org>
parent 32339e54

drivers/hwtracing/coresight/coresight-byte-cntr.c

+3 −0
Original line number Diff line number Diff line
@@ -233,6 +233,8 @@ static int tmc_etr_byte_cntr_release(struct inode *in, struct file *fp) 


	if (byte_cntr_data->enable)

		coresight_csr_set_byte_cntr(byte_cntr_data->csr, 0);



	disable_irq_wake(byte_cntr_data->byte_cntr_irq);

	mutex_unlock(&byte_cntr_data->byte_cntr_lock);



	return 0;
@@ -329,6 +331,7 @@ static int tmc_etr_byte_cntr_open(struct inode *in, struct file *fp) 
		return -EINVAL;

	}



	enable_irq_wake(byte_cntr_data->byte_cntr_irq);

	/* IRQ is a '8- byte' counter and to observe interrupt at

	 * 'block_size' bytes of data

	 */