linux-kernel - [RFC PATCH] drm: rcar-du: make all sub-symbols depend on DRM_RCAR

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Date:   Thu, 5 Mar 2020 19:17:49 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     dri-devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Kieran Bingham <kieran.bingham@...asonboard.com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Koji Matsuoka <koji.matsuoka.xm@...esas.com>,
        David Airlie <airlied@...ux.ie>
Subject: [RFC PATCH] drm: rcar-du: make all sub-symbols depend on DRM_RCAR_DU

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

DRM_RCAR_CMM depends on DRM_RCAR_DU. Since the following Kconfig
symbols do not depend on DRM_RCAR_DU, the menu presentation is
broken for these and following non-R-Car Kconfig symbols.

Is it safe/appropriate to make all of these symbols depend on
DRM_RCAR_DU?  It make the kconfig menu presentation much cleaner.

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-renesas-soc@...r.kernel.org
Cc: Koji Matsuoka <koji.matsuoka.xm@...esas.com>
Cc: Dave Airlie <airlied@...ux.ie>
---
 drivers/gpu/drm/rcar-du/Kconfig |    3 +++
 1 file changed, 3 insertions(+)

--- linux-next-20200305.orig/drivers/gpu/drm/rcar-du/Kconfig
+++ linux-next-20200305/drivers/gpu/drm/rcar-du/Kconfig
@@ -24,6 +24,7 @@ config DRM_RCAR_CMM
 config DRM_RCAR_DW_HDMI
 	tristate "R-Car DU Gen3 HDMI Encoder Support"
 	depends on DRM && OF
+	depends on DRM_RCAR_DU
 	select DRM_DW_HDMI
 	help
 	  Enable support for R-Car Gen3 internal HDMI encoder.
@@ -31,6 +32,7 @@ config DRM_RCAR_DW_HDMI
 config DRM_RCAR_LVDS
 	tristate "R-Car DU LVDS Encoder Support"
 	depends on DRM && DRM_BRIDGE && OF
+	depends on DRM_RCAR_DU
 	select DRM_PANEL
 	select OF_FLATTREE
 	select OF_OVERLAY
@@ -47,4 +49,5 @@ config DRM_RCAR_VSP
 
 config DRM_RCAR_WRITEBACK
 	bool
+	depends on DRM_RCAR_DU
 	default y if ARM64