linux-kernel - [PATCH v2] fbdev: aty: SPARC64 requires FB_ATY

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Date:   Thu, 26 Nov 2020 19:17:52 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        "David S. Miller" <davem@...emloft.net>,
        sparclinux@...r.kernel.org, Tomi Valkeinen <tomi.valkeinen@...com>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v2] fbdev: aty: SPARC64 requires FB_ATY_CT

It looks like SPARC64 requires FB_ATY_CT to build without errors,
so have FB_ATY select FB_ATY_CT if both SPARC64 and PCI are enabled
instead of using "default y if SPARC64 && PCI", which is not strong
enough to prevent build errors.

As it currently is, FB_ATY_CT can be disabled, resulting in build
errors:

ERROR: modpost: "aty_postdividers" [drivers/video/fbdev/aty/atyfb.ko] undefined!
ERROR: modpost: "aty_ld_pll_ct" [drivers/video/fbdev/aty/atyfb.ko] undefined!

Fixes: f7018c213502 ("video: move fbdev to drivers/video/fbdev")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: sparclinux@...r.kernel.org
Cc: Tomi Valkeinen <tomi.valkeinen@...com>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-fbdev@...r.kernel.org
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: David Airlie <airlied@...ux.ie>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
---
v2: use select (suggested by Geert)

 drivers/video/fbdev/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20201124.orig/drivers/video/fbdev/Kconfig
+++ linux-next-20201124/drivers/video/fbdev/Kconfig
@@ -1269,6 +1269,7 @@ config FB_ATY
 	select FB_CFB_IMAGEBLIT
 	select FB_BACKLIGHT if FB_ATY_BACKLIGHT
 	select FB_MACMODES if PPC
+	select FB_ATY_CT if SPARC64 && PCI
 	help
 	  This driver supports graphics boards with the ATI Mach64 chips.
 	  Say Y if you have such a graphics board.
@@ -1279,7 +1280,6 @@ config FB_ATY
 config FB_ATY_CT
 	bool "Mach64 CT/VT/GT/LT (incl. 3D RAGE) support"
 	depends on PCI && FB_ATY
-	default y if SPARC64 && PCI
 	help
 	  Say Y here to support use of ATI's 64-bit Rage boards (or other
 	  boards based on the Mach64 CT, VT, GT, and LT chipsets) as a