diff mbox

[06/13] ARM: at91: PIT: make IO endian agnostic

Message ID 1426693992-31163-7-git-send-email-ben.dooks@codethink.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Ben Dooks March 18, 2015, 3:53 p.m. UTC
Fix the use of __raw IO accessor with the readl/writel_relaxed versions
to allow the code to be used on a system running in big endian.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
--
CC: Daniel Lezcano <daniel.lezcano@linaro.org>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Linux Kernel <linux-kernel@vger.kernel.org>
CC: Linux ARM Kernel <linux-arm-kernel@lists.infradead.org>
CC: Andrew Victor <linux@maxim.org.za>
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
---
 drivers/clocksource/timer-atmel-pit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Nicolas Ferre March 23, 2015, 11:27 a.m. UTC | #1
Le 18/03/2015 16:53, Ben Dooks a écrit :
> Fix the use of __raw IO accessor with the readl/writel_relaxed versions
> to allow the code to be used on a system running in big endian.
> 
> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
> --
> CC: Daniel Lezcano <daniel.lezcano@linaro.org>
> CC: Thomas Gleixner <tglx@linutronix.de>
> CC: Linux Kernel <linux-kernel@vger.kernel.org>
> CC: Linux ARM Kernel <linux-arm-kernel@lists.infradead.org>
> CC: Andrew Victor <linux@maxim.org.za>
> CC: Nicolas Ferre <nicolas.ferre@atmel.com>

Yes:
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

Daniel, do you want to take it?


> CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> ---
>  drivers/clocksource/timer-atmel-pit.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clocksource/timer-atmel-pit.c b/drivers/clocksource/timer-atmel-pit.c
> index b5b4d45..c0304ff 100644
> --- a/drivers/clocksource/timer-atmel-pit.c
> +++ b/drivers/clocksource/timer-atmel-pit.c
> @@ -61,12 +61,12 @@ static inline struct pit_data *clkevt_to_pit_data(struct clock_event_device *clk
>  
>  static inline unsigned int pit_read(void __iomem *base, unsigned int reg_offset)
>  {
> -	return __raw_readl(base + reg_offset);
> +	return readl_relaxed(base + reg_offset);
>  }
>  
>  static inline void pit_write(void __iomem *base, unsigned int reg_offset, unsigned long value)
>  {
> -	__raw_writel(value, base + reg_offset);
> +	writel_relaxed(value, base + reg_offset);
>  }
>  
>  /*
>
Daniel Lezcano March 26, 2015, 9:54 a.m. UTC | #2
On 03/23/2015 12:27 PM, Nicolas Ferre wrote:
> Le 18/03/2015 16:53, Ben Dooks a écrit :
>> Fix the use of __raw IO accessor with the readl/writel_relaxed versions
>> to allow the code to be used on a system running in big endian.
>>
>> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
>> --
>> CC: Daniel Lezcano <daniel.lezcano@linaro.org>
>> CC: Thomas Gleixner <tglx@linutronix.de>
>> CC: Linux Kernel <linux-kernel@vger.kernel.org>
>> CC: Linux ARM Kernel <linux-arm-kernel@lists.infradead.org>
>> CC: Andrew Victor <linux@maxim.org.za>
>> CC: Nicolas Ferre <nicolas.ferre@atmel.com>
>
> Yes:
> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
>
> Daniel, do you want to take it?

Yep.

>> CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
>> ---
>>   drivers/clocksource/timer-atmel-pit.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/clocksource/timer-atmel-pit.c b/drivers/clocksource/timer-atmel-pit.c
>> index b5b4d45..c0304ff 100644
>> --- a/drivers/clocksource/timer-atmel-pit.c
>> +++ b/drivers/clocksource/timer-atmel-pit.c
>> @@ -61,12 +61,12 @@ static inline struct pit_data *clkevt_to_pit_data(struct clock_event_device *clk
>>
>>   static inline unsigned int pit_read(void __iomem *base, unsigned int reg_offset)
>>   {
>> -	return __raw_readl(base + reg_offset);
>> +	return readl_relaxed(base + reg_offset);
>>   }
>>
>>   static inline void pit_write(void __iomem *base, unsigned int reg_offset, unsigned long value)
>>   {
>> -	__raw_writel(value, base + reg_offset);
>> +	writel_relaxed(value, base + reg_offset);
>>   }
>>
>>   /*
>>
>
>
diff mbox

Patch

diff --git a/drivers/clocksource/timer-atmel-pit.c b/drivers/clocksource/timer-atmel-pit.c
index b5b4d45..c0304ff 100644
--- a/drivers/clocksource/timer-atmel-pit.c
+++ b/drivers/clocksource/timer-atmel-pit.c
@@ -61,12 +61,12 @@  static inline struct pit_data *clkevt_to_pit_data(struct clock_event_device *clk
 
 static inline unsigned int pit_read(void __iomem *base, unsigned int reg_offset)
 {
-	return __raw_readl(base + reg_offset);
+	return readl_relaxed(base + reg_offset);
 }
 
 static inline void pit_write(void __iomem *base, unsigned int reg_offset, unsigned long value)
 {
-	__raw_writel(value, base + reg_offset);
+	writel_relaxed(value, base + reg_offset);
 }
 
 /*