[PATCH v7 05/11] iio: dac: mcp47feb02: Increase EEPROM Programming Write Cycle Time

[Ariana Lazar <ariana.lazar@microchip.com>]

Increase the EEPROM write polling timeout to prevent -ETIMEDOUT errors and
incomplete nonvolatile write cycle, according to the time specified in the
datasheets (11-16 ms).

Fixes: bf394cc80369 ("iio: dac: adding support for Microchip MCP47FEB02")
Reported-by: sashiko-bot@kernel.org
Closes: https://lore.kernel.org/all/20260819125300.6B9211F000E9@smtp.kernel.org/
Cc: stable@vger.kernel.org
Signed-off-by: Ariana Lazar <ariana.lazar@microchip.com>
---
 drivers/iio/dac/mcp47feb02.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/dac/mcp47feb02.c b/drivers/iio/dac/mcp47feb02.c
index 2bd2e1bd93db01f79122aaeda2ba4ff14320b404..9d4ba95da84ace639aaefe87262b7125def2a48e 100644
--- a/drivers/iio/dac/mcp47feb02.c
+++ b/drivers/iio/dac/mcp47feb02.c
@@ -447,7 +447,7 @@ static int mcp47feb02_write_to_eeprom(struct mcp47feb02_data *data, unsigned int
 	ret = regmap_read_poll_timeout(data->regmap, MCP47FEB02_GAIN_CTRL_STATUS_REG_ADDR,
 				       eewa_val,
 				       !(eewa_val & MCP47FEB02_GAIN_BIT_STATUS_EEWA_MASK),
-				       USEC_PER_MSEC, USEC_PER_MSEC * 5);
+				       1 * USEC_PER_MSEC, 150 * USEC_PER_MSEC);
 	if (ret)
 		return ret;
 
@@ -507,7 +507,7 @@ static ssize_t store_eeprom_store(struct device *dev, struct device_attribute *a
 
 	ret = regmap_read_poll_timeout(data->regmap, MCP47FEB02_GAIN_CTRL_STATUS_REG_ADDR, eewa_val,
 				       !(eewa_val & MCP47FEB02_GAIN_BIT_STATUS_EEWA_MASK),
-				       USEC_PER_MSEC, USEC_PER_MSEC * 5);
+				       1 * USEC_PER_MSEC, 150 * USEC_PER_MSEC);
 	if (ret)
 		return ret;
 

-- 
2.43.0