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>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/platform_data/at91_adc.h b/include/linux/platform_data/at91_adc.h
index e15745b4f3a5..b3ca1e94e0c8 100644
--- a/include/linux/platform_data/at91_adc.h
+++ b/include/linux/platform_data/at91_adc.h
@@ -14,12 +14,16 @@
                         (Interruptions registers mostly)
  * @status_register:    Offset of the Interrupt Status Register
  * @trigger_register:   Offset of the Trigger setup register
+ * @mr_prescal_mask:    Mask of the PRESCAL field in the adc MR register
+ * @mr_startup_mask:    Mask of the STARTUP field in the adc MR register
  */
 struct at91_adc_reg_desc {
         u8      channel_base;
         u32     drdy_mask;
         u8      status_register;
         u8      trigger_register;
+        u32     mr_prescal_mask;
+        u32     mr_startup_mask;
 };
 
 /**