From: Sujith <Sujith.Manoharan@atheros.com>
To: <linville@tuxdriver.com>
Cc: <linux-wireless@vger.kernel.org>
Subject: [PATCH] ath9k: Wrap DMA dump function with PS wakeup/restore
Date: Wed, 26 Aug 2009 11:11:57 +0530 [thread overview]
Message-ID: <19092.52005.977714.645846@gargle.gargle.HOWL> (raw)
When dumping register contents, HW has to be awake.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
---
drivers/net/wireless/ath/ath9k/debug.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 9e36920..2be4c22 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);
}
--
1.6.4
reply other threads:[~2009-08-26 5:41 UTC|newest]
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