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| author | Yogesh Ashok Powar <yogeshp@marvell.com> | 2012-03-12 19:35:11 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-03-13 14:54:18 -0400 |
| commit | e7891ba2de9a67f22e5fd2a137f98d89cfb71348 (patch) | |
| tree | 8a974aaedf751fc37fd719b9575b11a492bc2bb1 | |
| parent | 6685d109f4b60604fd206cff01355094a2e3b419 (diff) | |
| download | lwn-e7891ba2de9a67f22e5fd2a137f98d89cfb71348.tar.gz lwn-e7891ba2de9a67f22e5fd2a137f98d89cfb71348.zip | |
mwifiex: use usleep_range instead of udelay
For the delay of 10 uSec or more usleep_range is prefered.
Unlike udelay, sleep_range avoids large number of undesired
interrupts.
Ref Documentation/timers/timers-howto.txt
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/mwifiex/pcie.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/sdio.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index 405350940a45..1033f00a775f 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -288,7 +288,7 @@ static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) while (mwifiex_pcie_ok_to_access_hw(adapter)) { i++; - udelay(10); + usleep_range(10, 20); /* 50ms max wait */ if (i == 50000) break; @@ -1088,7 +1088,7 @@ static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter) card->cmdrsp_buf->len); while (mwifiex_pcie_ok_to_access_hw(adapter) && (count++ < 10)) - udelay(50); + usleep_range(50, 60); } else { dev_err(adapter->dev, "There is no command but " "got cmdrsp\n"); @@ -1337,7 +1337,7 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, } if (len) break; - udelay(10); + usleep_range(10, 20); } if (!len) { diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index d39d8457f252..fe6fbc123b2e 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -583,7 +583,7 @@ mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) else if ((cs & bits) == bits) return 0; - udelay(10); + usleep_range(10, 20); } dev_err(adapter->dev, "poll card status failed, tries = %d\n", @@ -761,7 +761,7 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, if (len) break; - udelay(10); + usleep_range(10, 20); } if (!len) { |