linux-kernel - [PATCH] iio: adc: ti-ads1015: Use correct pga upper bound

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Date: Sat,  6 Jan 2024 12:48:35 -0500
From: Mohammed Billoo <mab.kernel@...il.com>
To: mab.kernel@...il.com
Cc: Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Marek Vasut <marex@...x.de>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Biju Das <biju.das.jz@...renesas.com>,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] iio: adc: ti-ads1015: Use correct pga upper bound

The devicetree binding and datasheets (for both the ADS1015 and
ADS1115) show that the PGA index should have a maximum value of 5,
and not 6.

Signed-off-by: Mohammed Billoo <mab.kernel@...il.com>
---
 drivers/iio/adc/ti-ads1015.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c
index 6799ea49dbc7..6ae967e4d8fa 100644
--- a/drivers/iio/adc/ti-ads1015.c
+++ b/drivers/iio/adc/ti-ads1015.c
@@ -925,7 +925,7 @@ static int ads1015_client_get_channels_config(struct i2c_client *client)
 
 		if (!fwnode_property_read_u32(node, "ti,gain", &pval)) {
 			pga = pval;
-			if (pga > 6) {
+			if (pga > 5) {
 				dev_err(dev, "invalid gain on %pfw\n", node);
 				fwnode_handle_put(node);
 				return -EINVAL;
-- 
2.34.1