linux-kernel - [PATCH 4/4 v2] i2c: i801: Instantiate SPD EEPROMs automatically

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Message-ID: <20191118102848.4fdadeb7@endymion>
Date:   Mon, 18 Nov 2019 10:28:48 +0100
From:   Jean Delvare <jdelvare@...e.de>
To:     Linux I2C <linux-i2c@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Wolfram Sang <wsa@...-dreams.de>
Subject: [PATCH 4/4 v2] i2c: i801: Instantiate SPD EEPROMs automatically

Call the function to instantiate SPD EEPROMs automatically on the
main SMBus controller.

Multiplexed SMBus systems are excluded for now as they are more
complex to handle.

Signed-off-by: Jean Delvare <jdelvare@...e.de>
---
Changes since v1:
 * Fixed build error reported by kbuild test robot

 drivers/i2c/busses/i2c-i801.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- linux-5.4-rc7.orig/drivers/i2c/busses/i2c-i801.c	2019-11-18 10:21:39.688372006 +0100
+++ linux-5.4-rc7/drivers/i2c/busses/i2c-i801.c	2019-11-18 10:21:41.928402933 +0100
@@ -1320,6 +1320,12 @@ static void i801_probe_optional_slaves(s
 
 	if (is_dell_system_with_lis3lv02d())
 		register_dell_lis3lv02d_i2c_device(priv);
+
+	/* Instantiate SPD EEPROMs unless the SMBus is multiplexed */
+#if IS_ENABLED(CONFIG_I2C_MUX_GPIO)
+	if (!priv->mux_drvdata)
+#endif
+		i2c_register_spd(&priv->adapter);
 }
 #else
 static void __init input_apanel_init(void) {}

-- 
Jean Delvare
SUSE L3 Support