linux-kernel - [PATCH] drm/bridge: DRM_CROS_EC_ANX7688 should depend on I2C_CROS_EC

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Message-Id: <d107d1840b83607baee8571cc5d88973fc32b519.1622015323.git.geert+renesas@glider.be>
Date:   Wed, 26 May 2021 09:50:58 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Robert Foss <robert.foss@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH] drm/bridge: DRM_CROS_EC_ANX7688 should depend on I2C_CROS_EC_TUNNEL

The ChromeOS EC ANX7688 bridge is connected to a ChromeOS Embedded
Controller, and is accessed using I2C tunneling through the Embedded
Controller.  Hence add a dependency on I2C_CROS_EC_TUNNEL, to prevent
asking the user about this driver when configuring a kernel without
support for the ChromeOS EC tunnel I2C bus.

Fixes: 44602b10d7f2a5f7 ("drm/bridge: Add ChromeOS EC ANX7688 bridge driver support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 drivers/gpu/drm/bridge/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 7e7f28eb954661e2..c96e4b38d1d34ee6 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -53,6 +53,7 @@ config DRM_CHRONTEL_CH7033
 config DRM_CROS_EC_ANX7688
 	tristate "ChromeOS EC ANX7688 bridge"
 	depends on OF
+	depends on I2C_CROS_EC_TUNNEL || COMPILE_TEST
 	select DRM_KMS_HELPER
 	select REGMAP_I2C
 	help
-- 
2.25.1