linux-kernel - [PATCH] ARM PXA: invalid clocks settings.

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Date:	Mon, 25 Jun 2007 12:53:58 +0200
From:	Rodolfo Giometti <giometti@...eenne.com>
To:	linux-arm-kernel@...ts.arm.linux.org.uk
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] ARM PXA: invalid clocks settings.

This patch fixes some bugs in the CPU clocks settings entered by commit
7053acbd78336abf5d4bc3d8a875a03624cfb83f. These bugs also prevent the system
in going to sleep correctly leaving it into a non consistent status.

The clocks enable/disable defines was changed from:

	#define CKEN_CAMERA  (1 << 24)

to:

	#define CKEN_CAMERA  (24)

so direct access to the CKEN register should be now in the form:

	CKEN |= (1 << CKEN_CAMERA)

Signed-off-by: Rodolfo Giometti <giometti@...ux.it>
---
 arch/arm/mach-pxa/pxa27x.c  |    5 +++--
 sound/arm/pxa2xx-ac97.c     |    2 +-
 sound/soc/pxa/pxa2xx-ac97.c |    2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index c64bab4..7be8a74 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -140,9 +140,10 @@ void pxa_cpu_pm_enter(suspend_state_t state)
 	extern void pxa_cpu_resume(void);
 
 	if (state == PM_SUSPEND_STANDBY)
-		CKEN = CKEN_MEMC | CKEN_OSTIMER | CKEN_LCD | CKEN_PWM0;
+		CKEN = (1 << CKEN_MEMC) | (1 << CKEN_OSTIMER) | \
+			(1 << CKEN_LCD) | (1 << CKEN_PWM0);
 	else
-		CKEN = CKEN_MEMC | CKEN_OSTIMER;
+		CKEN = (1 << CKEN_MEMC) | (1 << CKEN_OSTIMER);
 
 	/* ensure voltage-change sequencer not initiated, which hangs */
 	PCFR &= ~PCFR_FVC;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 19c65a8..7bc2767 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -361,7 +361,7 @@ static int __devinit pxa2xx_ac97_probe(struct platform_device *dev)
  err:
 	if (card)
 		snd_card_free(card);
-	if (CKEN & CKEN_AC97) {
+	if (CKEN & (1 << CKEN_AC97)) {
 		GCR |= GCR_ACLINK_OFF;
 		free_irq(IRQ_AC97, NULL);
 		pxa_set_cken(CKEN_AC97, 0);
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index b222755..129d851 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -300,7 +300,7 @@ static int pxa2xx_ac97_probe(struct platform_device *pdev)
 	return 0;
 
  err:
-	if (CKEN & CKEN_AC97) {
+	if (CKEN & (1 << CKEN_AC97)) {
 		GCR |= GCR_ACLINK_OFF;
 		free_irq(IRQ_AC97, NULL);
 		pxa_set_cken(CKEN_AC97, 0);
-- 
1.5.2.2


-- 

GNU/Linux Solutions                  e-mail:    giometti@...eenne.com
Linux Device Driver                             giometti@...dd.com
Embedded Systems                     		giometti@...ux.it
UNIX programming                     phone:     +39 349 2432127
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