linux-kernel - [PATCH 5.12 078/677] drm: bridge: fix ANX7625 use of mipi_dsi

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Date:   Wed, 12 May 2021 16:42:04 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Robert Foss <robert.foss@...aro.org>,
        Xin Ji <xji@...logixsemi.com>, Sam Ravnborg <sam@...nborg.org>,
        dri-devel@...ts.freedesktop.org,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH 5.12 078/677] drm: bridge: fix ANX7625 use of mipi_dsi_() functions

From: Randy Dunlap <rdunlap@...radead.org>

commit ed01fca38717169fcb61bd45ad1c3750d9c40d59 upstream.

The Analogix DRM ANX7625 bridge driver uses mips_dsi_() function
interfaces so it should select DRM_MIPI_DSI to prevent build errors.

ERROR: modpost: "mipi_dsi_attach" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined!
ERROR: modpost: "mipi_dsi_device_register_full" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined!
ERROR: modpost: "of_find_mipi_dsi_host_by_node" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined!
ERROR: modpost: "mipi_dsi_device_unregister" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined!
ERROR: modpost: "mipi_dsi_detach" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined!

Fixes: 8bdfc5dae4e3 ("drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reviewed-by: Robert Foss <robert.foss@...aro.org>
Cc: Xin Ji <xji@...logixsemi.com>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: dri-devel@...ts.freedesktop.org
Cc: Andrzej Hajda <a.hajda@...sung.com>
Cc: Neil Armstrong <narmstrong@...libre.com>
Cc: Robert Foss <robert.foss@...aro.org>
Cc: stable@...r.kernel.org
Signed-off-by: Robert Foss <robert.foss@...aro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210415183619.1431-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/bridge/analogix/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/bridge/analogix/Kconfig
+++ b/drivers/gpu/drm/bridge/analogix/Kconfig
@@ -30,6 +30,7 @@ config DRM_ANALOGIX_ANX7625
 	tristate "Analogix Anx7625 MIPI to DP interface support"
 	depends on DRM
 	depends on OF
+	select DRM_MIPI_DSI
 	help
 	  ANX7625 is an ultra-low power 4K mobile HD transmitter
 	  designed for portable devices. It converts MIPI/DPI to