iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX

[ Upstream commit bb73d5d9164c57c4bb916739a98e5cd8e0a5ed8c ]

All ADC HW versions handled by this driver (SAMA5D2, SAM9X60, SAMA7G5)
have MR.TRACKTIM on 4 bits. Fix AT91_SAMA5D2_MR_TRACKTIM_MAX to reflect
this.

Fixes: 27e177190891 ("iio:adc:at91_adc8xx: introduce new atmel adc driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-2-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index c4de706..92e2e74 100644 (file)
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -74,7 +74,7 @@
 #define        AT91_SAMA5D2_MR_ANACH           BIT(23)
 /* Tracking Time */
 #define        AT91_SAMA5D2_MR_TRACKTIM(v)     ((v) << 24)
-#define        AT91_SAMA5D2_MR_TRACKTIM_MAX    0xff
+#define        AT91_SAMA5D2_MR_TRACKTIM_MAX    0xf
 /* Transfer Time */
 #define        AT91_SAMA5D2_MR_TRANSFER(v)     ((v) << 28)
 #define        AT91_SAMA5D2_MR_TRANSFER_MAX    0x3