From 572afd43c959f44b59a5ba268c57125f09d2fbe5 Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Fri, 31 May 2024 11:19:14 +0200
Subject: i2c: at91: Fix the functionality flags of the slave-only interface

[ Upstream commit d6d5645e5fc1233a7ba950de4a72981c394a2557 ]

When an I2C adapter acts only as a slave, it should not claim to
support I2C master capabilities.

Fixes: 9d3ca54b550c ("i2c: at91: added slave mode support")
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Juergen Fitschen <me@jue.yt>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Cc: Andi Shyti <andi.shyti@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-at91-slave.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/i2c/busses/i2c-at91-slave.c b/drivers/i2c/busses/i2c-at91-slave.c
index d6eeea5166c0..131a67d9d4a6 100644
--- a/drivers/i2c/busses/i2c-at91-slave.c
+++ b/drivers/i2c/busses/i2c-at91-slave.c
@@ -106,8 +106,7 @@ static int at91_unreg_slave(struct i2c_client *slave)
 
 static u32 at91_twi_func(struct i2c_adapter *adapter)
 {
-	return I2C_FUNC_SLAVE | I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL
-		| I2C_FUNC_SMBUS_READ_BLOCK_DATA;
+	return I2C_FUNC_SLAVE;
 }
 
 static const struct i2c_algorithm at91_twi_algorithm_slave = {
-- 
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