linux: Enable CONFIG_I2C_BRCMSTB for proper HDMI I2C support

eigendude · agherzan · commit 836512c47b2b · 2024-12-04T21:28:39.000Z
This patch enables the CONFIG_I2C_BRCMSTB option in vc4graphics.cfg to
ensure proper support for the `brcm,bcm2711-hdmi-i2c` device node. Without
this configuration, the I2C bus associated with HDMI on Broadcom
BCM2711-based systems may fail to probe, causing issues with HDMI
communication and display initialization.

Additionally, this resolves potential deferred probe issues observed in
the kernel logs, ensuring the correct initialization of the HDMI I2C bus.

Signed-off-by: Garrett Brown &lt;garrett.brown@aclima.io&gt;
diff --git a/recipes-kernel/linux/files/vc4graphics.cfg b/recipes-kernel/linux/files/vc4graphics.cfg
@@ -1,4 +1,5 @@
 CONFIG_I2C_BCM2835=y
+CONFIG_I2C_BRCMSTB=y
 CONFIG_DRM=y
 CONFIG_DRM_FBDEV_EMULATION=y
 CONFIG_DRM_VC4=y

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`CONFIG_I2C_BCM2835=y`
	`2`	`+CONFIG_I2C_BRCMSTB=y`
`2`	`3`	`CONFIG_DRM=y`
`3`	`4`	`CONFIG_DRM_FBDEV_EMULATION=y`
`4`	`5`	`CONFIG_DRM_VC4=y`