From 7cf4a2e778ab18c66cd8dd4785aceb2800d49f79 Mon Sep 17 00:00:00 2001 From: Sujith Date: Wed, 26 Aug 2009 11:11:57 +0530 Subject: [PATCH] ath9k: Wrap DMA dump function with PS wakeup/restore When dumping register contents, HW has to be awake. Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/debug.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 9e369208f7dc..2be4c2252047 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -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); } -- 2.11.0