linux-kernel - [RFC PATCH 02/15] clocksource: samsung_pwm

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Message-Id: <20160608183110.13851-3-matthew@mattleach.net>
Date:	Wed,  8 Jun 2016 19:30:57 +0100
From:	Matthew Leach <matthew@...tleach.net>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Ben Dooks <ben.dooks@...ethink.co.uk>
Cc:	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Matthew Leach <matthew@...tleach.net>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [RFC PATCH 02/15] clocksource: samsung_pwm_timer: fix endian accessors

Fix the Samsung pwm timer access code to deal with kernels built for big
endian operation.

Signed-off-by: Matthew Leach <matthew@...tleach.net>
---
CC: Daniel Lezcano <daniel.lezcano@...aro.org>
CC: Thomas Gleixner <tglx@...utronix.de>
CC: linux-kernel@...r.kernel.org
---
 drivers/clocksource/samsung_pwm_timer.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index 9502bc4..47e0515 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -130,9 +130,9 @@ static void samsung_time_stop(unsigned int channel)
 
 	spin_lock_irqsave(&samsung_pwm_lock, flags);
 
-	tcon = __raw_readl(pwm.base + REG_TCON);
+	tcon = readl_relaxed(pwm.base + REG_TCON);
 	tcon &= ~TCON_START(channel);
-	__raw_writel(tcon, pwm.base + REG_TCON);
+	writel_relaxed(tcon, pwm.base + REG_TCON);
 
 	spin_unlock_irqrestore(&samsung_pwm_lock, flags);
 }
@@ -148,14 +148,14 @@ static void samsung_time_setup(unsigned int channel, unsigned long tcnt)
 
 	spin_lock_irqsave(&samsung_pwm_lock, flags);
 
-	tcon = __raw_readl(pwm.base + REG_TCON);
+	tcon = readl_relaxed(pwm.base + REG_TCON);
 
 	tcon &= ~(TCON_START(tcon_chan) | TCON_AUTORELOAD(tcon_chan));
 	tcon |= TCON_MANUALUPDATE(tcon_chan);
 
-	__raw_writel(tcnt, pwm.base + REG_TCNTB(channel));
-	__raw_writel(tcnt, pwm.base + REG_TCMPB(channel));
-	__raw_writel(tcon, pwm.base + REG_TCON);
+	writel_relaxed(tcnt, pwm.base + REG_TCNTB(channel));
+	writel_relaxed(tcnt, pwm.base + REG_TCMPB(channel));
+	writel_relaxed(tcon, pwm.base + REG_TCON);
 
 	spin_unlock_irqrestore(&samsung_pwm_lock, flags);
 }
@@ -170,7 +170,7 @@ static void samsung_time_start(unsigned int channel, bool periodic)
 
 	spin_lock_irqsave(&samsung_pwm_lock, flags);
 
-	tcon = __raw_readl(pwm.base + REG_TCON);
+	tcon = readl_relaxed(pwm.base + REG_TCON);
 
 	tcon &= ~TCON_MANUALUPDATE(channel);
 	tcon |= TCON_START(channel);
@@ -180,7 +180,7 @@ static void samsung_time_start(unsigned int channel, bool periodic)
 	else
 		tcon &= ~TCON_AUTORELOAD(channel);
 
-	__raw_writel(tcon, pwm.base + REG_TCON);
+	writel_relaxed(tcon, pwm.base + REG_TCON);
 
 	spin_unlock_irqrestore(&samsung_pwm_lock, flags);
 }
-- 
2.8.3