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Date:   Sun, 21 Feb 2021 19:28:53 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Jani Nikula <jani.nikula@...ux.intel.com>
Subject: [PATCH] fbdev: atyfb: add stubs for aty_{ld,st}_lcd()

Fix build errors when these functions are not defined.

../drivers/video/fbdev/aty/atyfb_base.c: In function 'aty_power_mgmt':
../drivers/video/fbdev/aty/atyfb_base.c:2002:7: error: implicit declaration of function 'aty_ld_lcd'; did you mean 'aty_ld_8'? [-Werror=implicit-function-declaration]
 2002 |  pm = aty_ld_lcd(POWER_MANAGEMENT, par);
../drivers/video/fbdev/aty/atyfb_base.c:2004:2: error: implicit declaration of function 'aty_st_lcd'; did you mean 'aty_st_8'? [-Werror=implicit-function-declaration]
 2004 |  aty_st_lcd(POWER_MANAGEMENT, pm, par);

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: linux-fbdev@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: Daniel Vetter <daniel@...ll.ch>
Cc: David Airlie <airlied@...ux.ie>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>
---
 drivers/video/fbdev/aty/atyfb_base.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- linux-next-20210219.orig/drivers/video/fbdev/aty/atyfb_base.c
+++ linux-next-20210219/drivers/video/fbdev/aty/atyfb_base.c
@@ -175,6 +175,15 @@ u32 aty_ld_lcd(int index, const struct a
 		return aty_ld_le32(LCD_DATA, par);
 	}
 }
+#else /* defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_BACKLIGHT) \
+	 defined(CONFIG_FB_ATY_GENERIC_LCD) */
+void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
+{ }
+
+u32 aty_ld_lcd(int index, const struct atyfb_par *par)
+{
+	return 0;
+}
 #endif /* defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD) */
 
 #ifdef CONFIG_FB_ATY_GENERIC_LCD

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