[PATCH 11/14] iio: adc: at91-sama5d2_adc: optimize scan index for diff channels
STALE3184d
From: Eugen Hristev <hidden>
Date: 2017-12-22 15:10:28
Also in:
linux-devicetree, linux-iio, linux-input, lkml
Subsystem:
iio subsystem and drivers, microchip sama5d2-compatible adc driver, the rest · Maintainers:
Jonathan Cameron, Eugen Hristev, Linus Torvalds
Optimize the scan index for the differential channels. Before, it was single channel count + index of the first single channel number of the differential pair. (e.g. 11+0, +2, +4, etc.) Divide that number by two (since it's always even), and add it up as a scan index to have consecutive numbered channels in the index. Signed-off-by: Eugen Hristev <redacted> --- drivers/iio/adc/at91-sama5d2_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index 7b9febc..9610393 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c@@ -209,7 +209,7 @@ .channel = num, \ .channel2 = num2, \ .address = addr, \ - .scan_index = num + AT91_SAMA5D2_SINGLE_CHAN_CNT, \ + .scan_index = (num >> 1) + AT91_SAMA5D2_SINGLE_CHAN_CNT,\ .scan_type = { \ .sign = 's', \ .realbits = 12, \
--
2.7.4