video/omap: fix modular build

The framebuffer layer can be a loadable module, which forces
omapfb to be a module as well. However, this breaks the lcd
drivers, which are linked into the omapfb driver but each
have their own module_init() function. To solve this,
we split out the lcd drivers into separate modules and
export omapfb_register_panel, which is the only interface
required between the main omapfb driver and the lcd panel
drivers.

We also have to introduce a new Kconfig symbol for H3, since
that lcd driver has a dependency on TPS65010, which we can
express better in Kconfig than Makefile syntax.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

3 files changed, 22 insertions, 11 deletions

diff --git a/drivers/video/fbdev/omap/Kconfig b/drivers/video/fbdev/omap/Kconfig
index 0bc3a936ce2b..18c4cb0d5690 100644
--- a/drivers/video/fbdev/omap/Kconfig
+++ b/drivers/video/fbdev/omap/Kconfig
@@ -39,6 +39,15 @@ config FB_OMAP_LCD_MIPID
           the Mobile Industry Processor Interface DBI-C/DCS
           specification. (Supported LCDs: Philips LPH8923, Sharp LS041Y3)
 
+config FB_OMAP_LCD_H3
+        bool "TPS65010 LCD controller on OMAP-H3"
+        depends on MACH_OMAP_H3
+        depends on TPS65010
+        default y
+        help
+          Say Y here if you want to have support for the LCD on the
+          H3 board.
+
 config FB_OMAP_DMA_TUNE
         bool "Set DMA SDRAM access priority high"
         depends on FB_OMAP
diff --git a/drivers/video/fbdev/omap/Makefile b/drivers/video/fbdev/omap/Makefile
index 1927faffb5bc..732e0718be53 100644
--- a/drivers/video/fbdev/omap/Makefile
+++ b/drivers/video/fbdev/omap/Makefile
@@ -10,17 +10,18 @@ objs-y$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += sossi.o
 
 objs-y$(CONFIG_FB_OMAP_LCDC_HWA742) += hwa742.o
 
-objs-y$(CONFIG_MACH_AMS_DELTA) += lcd_ams_delta.o
-objs-y$(CONFIG_MACH_OMAP_H3) += lcd_h3.o
-objs-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o
-objs-y$(CONFIG_MACH_OMAP_PALMTT) += lcd_palmtt.o
-objs-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o
-objs-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o
-objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o
-objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o
-
-objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
-objs-y$(CONFIG_MACH_HERALD) += lcd_htcherald.o
+lcds-y$(CONFIG_MACH_AMS_DELTA) += lcd_ams_delta.o
+lcds-y$(CONFIG_FB_OMAP_LCD_H3) += lcd_h3.o
+lcds-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o
+lcds-y$(CONFIG_MACH_OMAP_PALMTT) += lcd_palmtt.o
+lcds-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o
+lcds-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o
+lcds-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o
+lcds-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o
+
+lcds-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
+lcds-y$(CONFIG_MACH_HERALD) += lcd_htcherald.o
 
 omapfb-objs := $(objs-yy)
 
+obj-$(CONFIG_FB_OMAP) += $(lcds-yy)
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index e4fc6d9b5371..d8d028d98711 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -1823,6 +1823,7 @@ void omapfb_register_panel(struct lcd_panel *panel)
         if (fbdev_pdev != NULL)
                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
 }
+EXPORT_SYMBOL_GPL(omapfb_register_panel);
 
 /* Called when the device is being detached from the driver */
 static int omapfb_remove(struct platform_device *pdev)