[PATCH 04/18] ARM: at91: make ST (System Timer) soc independent

On 14:16 Mon 20 Feb     , Ryan Mallon wrote:

On 20/02/12 14:02, Jean-Christophe PLAGNIOL-VILLARD wrote:

quoted

On 12:52 Mon 20 Feb     , Ryan Mallon wrote:

quoted

On 20/02/12 12:38, Jean-Christophe PLAGNIOL-VILLARD wrote:

quoted

On 11:22 Mon 20 Feb     , Ryan Mallon wrote:

quoted

On 18/02/12 04:49, Nicolas Ferre wrote:

quoted

From: Jean-Christophe PLAGNIOL-VILLARD <redacted>

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <redacted>
Acked-by: Nicolas Ferre <redacted>
---
 arch/arm/mach-at91/at91rm9200.c              |    4 +-
 arch/arm/mach-at91/at91rm9200_time.c         |   37 ++++++++++++++++----------
 arch/arm/mach-at91/generic.h                 |    1 +
 arch/arm/mach-at91/include/mach/at91_st.h    |   32 +++++++++++++++-------
 arch/arm/mach-at91/include/mach/at91rm9200.h |    2 +-
 drivers/watchdog/at91rm9200_wdt.c            |    8 +++---
 6 files changed, 53 insertions(+), 31 deletions(-)

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c

Hi Jean, Nicolas,

Patch looks mostly good, couple of points below.

~Ryan

<snip>

quoted

 	/* Cancel any pending alarm; flush any pending IRQ */
-	at91_sys_write(AT91_ST_RTAR, alm);
-	(void) at91_sys_read(AT91_ST_SR);
+	at91_st_write(AT91_ST_RTAR, alm);
+	(void) at91_st_read(AT91_ST_SR);

Can we please remove the (void) casting of the return value when making
this change, especially since at91_st_read is now a macro which doesn't
even have a return value. Same in a few other places.

modification done by script and it's no the scope of this patch

That isn't an excuse to leave incorrect code there. It is a simple fix.

no (void) in c means you don't care of the return so basically it's right

Because of the way the __raw_writel is defined you are casting the
result of an assignment, basically you are doing this:

   int foo, bar;

  (void)(foo = bar);

Which is pointless. Don't make excuses for silly, redundant code. Fix
it, please.

except it's a read it has nothing to do with that

Best Regards,
J.