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authorJosh Wu <josh.wu@atmel.com>2013-08-27 12:28:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-08-29 21:49:28 +0100
commit9120c0bea999cc26c3493486828d34138a7ac901 (patch)
tree36c7f48edfc9ca1b5e9a74186c4490faba7dd457 /drivers/iio
parente1811f97ba985fef3f703f55aeb5d23660c919ef (diff)
iio: at91: Use different prescal, startup mask in MR for different IP
For at91 boards, there are different IPs for adc. Different IPs has different STARTUP & PRESCAL mask in ADC_MR. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/at91_adc.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index ed5eebc93bb..84be63bdf03 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -672,8 +672,8 @@ static int at91_adc_probe(struct platform_device *pdev)
shtim = round_up((st->sample_hold_time * adc_clk /
1000000) - 1, 1);
- reg = AT91_ADC_PRESCAL_(prsc) & AT91_ADC_PRESCAL;
- reg |= AT91_ADC_STARTUP_(ticks) & AT91_ADC_STARTUP;
+ reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask;
+ reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask;
if (st->low_res)
reg |= AT91_ADC_LOWRES;
if (st->sleep_mode)
@@ -746,6 +746,8 @@ static struct at91_adc_caps at91sam9260_caps = {
.drdy_mask = AT91_ADC_DRDY,
.status_register = AT91_ADC_SR,
.trigger_register = AT91_ADC_TRGR_9260,
+ .mr_prescal_mask = AT91_ADC_PRESCAL_9260,
+ .mr_startup_mask = AT91_ADC_STARTUP_9260,
},
};
@@ -755,6 +757,8 @@ static struct at91_adc_caps at91sam9g45_caps = {
.drdy_mask = AT91_ADC_DRDY,
.status_register = AT91_ADC_SR,
.trigger_register = AT91_ADC_TRGR_9G45,
+ .mr_prescal_mask = AT91_ADC_PRESCAL_9G45,
+ .mr_startup_mask = AT91_ADC_STARTUP_9G45,
},
};
@@ -764,6 +768,9 @@ static struct at91_adc_caps at91sam9x5_caps = {
.drdy_mask = AT91_ADC_SR_DRDY_9X5,
.status_register = AT91_ADC_SR_9X5,
.trigger_register = AT91_ADC_TRGR_9X5,
+ /* prescal mask is same as 9G45 */
+ .mr_prescal_mask = AT91_ADC_PRESCAL_9G45,
+ .mr_startup_mask = AT91_ADC_STARTUP_9X5,
},
};