diff options
| author | Vasily Khoruzhick <anarsoul@gmail.com> | 2009-10-24 03:04:55 -0500 |
|---|---|---|
| committer | Lars-Peter Clausen <lars@metafoo.de> | 2009-12-15 18:29:31 +0100 |
| commit | fb49c8b3238fec0f79535303e90e909ccc058059 (patch) | |
| tree | 00acb35a43e144129b6bd54be53c2b7f1b1d2337 | |
| parent | 22763c5cf3690a681551162c15d34d935308c8d7 (diff) | |
s3c24xx: introduce s3c-adc delay
Without this patch we cannot make the s3c2410/s3c2440 touchscreen
driver work. This will be done in a different way in upstream kernel.
We specify the delay value (S3C2410_ADCDLY).
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
| -rw-r--r-- | arch/arm/plat-s3c24xx/adc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c index df47322492d..a1dbd0ce59e 100644 --- a/arch/arm/plat-s3c24xx/adc.c +++ b/arch/arm/plat-s3c24xx/adc.c @@ -62,6 +62,7 @@ struct adc_device { void __iomem *regs; unsigned int prescale; + unsigned int delay; int irq; }; @@ -307,6 +308,7 @@ static int s3c_adc_probe(struct platform_device *pdev) adc->pdev = pdev; adc->prescale = S3C2410_ADCCON_PRSCVL(49); + adc->delay = 0x2710; adc->irq = platform_get_irq(pdev, 1); if (adc->irq <= 0) { @@ -346,6 +348,7 @@ static int s3c_adc_probe(struct platform_device *pdev) writel(adc->prescale | S3C2410_ADCCON_PRSCEN, adc->regs + S3C2410_ADCCON); + writel(adc->delay, adc->regs + S3C2410_ADCDLY); dev_info(dev, "attached adc driver\n"); @@ -401,6 +404,7 @@ static int s3c_adc_resume(struct platform_device *pdev) writel(adc->prescale | S3C2410_ADCCON_PRSCEN, adc->regs + S3C2410_ADCCON); + writel(adc->delay, adc->regs + S3C2410_ADCDLY); return 0; } |