Commit 7cf4a2e7 authored by Sujith's avatar Sujith Committed by John W. Linville
Browse files

ath9k: Wrap DMA dump function with PS wakeup/restore 



When dumping register contents, HW has to be awake.

Signed-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent b264c673

drivers/net/wireless/ath/ath9k/debug.c

+4 −0
Original line number Diff line number Diff line
@@ -93,6 +93,8 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf, 
	int i, qcuOffset = 0, dcuOffset = 0;

	u32 *qcuBase = &val[0], *dcuBase = &val[4];



	ath9k_ps_wakeup(sc);



	REG_WRITE(ah, AR_MACMISC,

		  ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |

		   (AR_MACMISC_MISC_OBS_BUS_1 <<
@@ -159,6 +161,8 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf, 
	len += snprintf(buf + len, sizeof(buf) - len,

			"AR_CR: 0x%x \n", REG_READ(ah, AR_CR));



	ath9k_ps_restore(sc);



	return simple_read_from_buffer(user_buf, count, ppos, buf, len);

}