From 29ef3c3b2c099efed925cb274c93661a5060d4ca Mon Sep 17 00:00:00 2001
From: Simon Xue <xxm@rock-chips.com>
Date: Wed, 26 Mar 2025 10:38:57 +0800
Subject: [PATCH] iio: adc: rockchip_saradc: support raw read in test mode

Change-Id: Ic19240bfdc05865e395c91b83fdadd8cfb4d8eac
Signed-off-by: Simon Xue <xxm@rock-chips.com>
---
 drivers/iio/adc/rockchip_saradc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
index e3e9cda5cb11..340ba2f7b8f5 100644
--- a/drivers/iio/adc/rockchip_saradc.c
+++ b/drivers/iio/adc/rockchip_saradc.c
@@ -151,7 +151,10 @@ static int rockchip_saradc_read_v2(struct rockchip_saradc *info)
 	writel_relaxed(0x1, info->regs + SARADC2_END_INT_ST);
 
 #ifdef CONFIG_ROCKCHIP_SARADC_TEST_CHN
-	channel = info->test_chn;
+	if (info->test)
+		channel = info->test_chn;
+	else
+		channel = info->last_chan->channel;
 #else
 	channel = info->last_chan->channel;
 #endif