linux-kernel - [PATCH v3 06/20] drivers/video/fbdev/core/fb_ddc.c: remove I2C_CLASS

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Date:   Sun, 19 Nov 2023 11:14:31 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Wolfram Sang <wsa@...nel.org>, Daniel Vetter <daniel@...ll.ch>
Cc:     linux-i2c@...r.kernel.org, Heiner Kallweit <hkallweit1@...il.com>,
        Helge Deller <deller@....de>, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 06/20] drivers/video/fbdev/core/fb_ddc.c: remove I2C_CLASS_DDC support

After removal of the legacy EEPROM driver and I2C_CLASS_DDC support in
olpc_dcon there's no i2c client driver left supporting I2C_CLASS_DDC.
Class-based device auto-detection is a legacy mechanism and shouldn't
be used in new code. So we can remove this class completely now.

Preferably this series should be applied via the i2c tree.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>

---
 drivers/video/fbdev/core/fb_ddc.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/fbdev/core/fb_ddc.c b/drivers/video/fbdev/core/fb_ddc.c
index 8bf5f2f54..e25143219 100644
--- a/drivers/video/fbdev/core/fb_ddc.c
+++ b/drivers/video/fbdev/core/fb_ddc.c
@@ -116,7 +116,6 @@ unsigned char *fb_ddc_read(struct i2c_adapter *adapter)
 	algo_data->setsda(algo_data->data, 1);
 	algo_data->setscl(algo_data->data, 1);
 
-	adapter->class |= I2C_CLASS_DDC;
 	return edid;
 }