From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Mon, 15 Feb 2016 22:12:07 +0000 (-0600)
Subject: rtlwifi: Change long delays to sleeps
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=49f86ec21c01;p=linux-beck.git

rtlwifi: Change long delays to sleeps

Routine rtl_addr_delay() uses delay statements in code that can
sleep. To improve system responsiveness, the various delay statements
are changed.

In addition, routines rtl_rfreg_delay() and rtl_bb_delay() are
rewritten to use the code in rtl_addr_delay() for most of their
input values.

Suggested-by: Byeoungwook Kim <quddnr145@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 16bb57ccf90e..0f48048b8654 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -54,59 +54,39 @@ EXPORT_SYMBOL(channel5g_80m);
 void rtl_addr_delay(u32 addr)
 {
 	if (addr == 0xfe)
-		mdelay(50);
+		msleep(50);
 	else if (addr == 0xfd)
-		mdelay(5);
+		msleep(5);
 	else if (addr == 0xfc)
-		mdelay(1);
+		msleep(1);
 	else if (addr == 0xfb)
-		udelay(50);
+		usleep_range(50, 100);
 	else if (addr == 0xfa)
-		udelay(5);
+		usleep_range(5, 10);
 	else if (addr == 0xf9)
-		udelay(1);
+		usleep_range(1, 2);
 }
 EXPORT_SYMBOL(rtl_addr_delay);
 
 void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
 		     u32 mask, u32 data)
 {
-	if (addr == 0xfe) {
-		mdelay(50);
-	} else if (addr == 0xfd) {
-		mdelay(5);
-	} else if (addr == 0xfc) {
-		mdelay(1);
-	} else if (addr == 0xfb) {
-		udelay(50);
-	} else if (addr == 0xfa) {
-		udelay(5);
-	} else if (addr == 0xf9) {
-		udelay(1);
+	if (addr >= 0xf9 && addr <= 0xfe) {
+		rtl_addr_delay(addr);
 	} else {
 		rtl_set_rfreg(hw, rfpath, addr, mask, data);
-		udelay(1);
+		usleep_range(1, 2);
 	}
 }
 EXPORT_SYMBOL(rtl_rfreg_delay);
 
 void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
 {
-	if (addr == 0xfe) {
-		mdelay(50);
-	} else if (addr == 0xfd) {
-		mdelay(5);
-	} else if (addr == 0xfc) {
-		mdelay(1);
-	} else if (addr == 0xfb) {
-		udelay(50);
-	} else if (addr == 0xfa) {
-		udelay(5);
-	} else if (addr == 0xf9) {
-		udelay(1);
+	if (addr >= 0xf9 && addr <= 0xfe) {
+		rtl_addr_delay(addr);
 	} else {
 		rtl_set_bbreg(hw, addr, MASKDWORD, data);
-		udelay(1);
+		usleep_range(1, 2);
 	}
 }
 EXPORT_SYMBOL(rtl_bb_delay);