drm/omap: remove rfbi

The RFBI driver has not worked nor compiled for many years. There are
very few boards out there that use RFBI, and no one has stepped up to
fix it.

So let's remove the RFBI code that doesn't even compile.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

drivers/gpu/drm/omapdrm/dss/Kconfig

@@ -49,19 +49,6 @@ config OMAP2_DSS_DPI
 	help
 	  DPI Interface. This is the Parallel Display Interface.
 
-config OMAP2_DSS_RFBI
-	bool "RFBI support"
-	depends on BROKEN
-        default n
-	help
-	  MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
-	  Instrument's terminology).
-
-	  DBI is a bus between the host processor and a peripheral,
-	  such as a display or a framebuffer chip.
-
-	  See http://www.mipi.org/ for DBI specifications.
-
 config OMAP2_DSS_VENC
 	bool "VENC support"
         default y

drivers/gpu/drm/omapdrm/dss/Makefile

@@ -8,7 +8,6 @@ obj-$(CONFIG_OMAP2_DSS) += omapdss.o
 omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o \
 	pll.o video-pll.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
-omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o

drivers/gpu/drm/omapdrm/dss/core.c

@@ -208,9 +208,6 @@ static int (*dss_output_drv_reg_funcs[])(void) __initdata = {
 #ifdef CONFIG_OMAP2_DSS_DSI
 	dsi_init_platform_driver,
 #endif
-#ifdef CONFIG_OMAP2_DSS_RFBI
-	rfbi_init_platform_driver,
-#endif
 #ifdef CONFIG_OMAP2_DSS_VENC
 	venc_init_platform_driver,
 #endif
@@ -232,9 +229,6 @@ static void (*dss_output_drv_unreg_funcs[])(void) = {
 #ifdef CONFIG_OMAP2_DSS_VENC
 	venc_uninit_platform_driver,
 #endif
-#ifdef CONFIG_OMAP2_DSS_RFBI
-	rfbi_uninit_platform_driver,
-#endif
 #ifdef CONFIG_OMAP2_DSS_DSI
 	dsi_uninit_platform_driver,
 #endif

drivers/gpu/drm/omapdrm/dss/dss.h

@@ -382,10 +382,6 @@ void hdmi4_uninit_platform_driver(void);
 int hdmi5_init_platform_driver(void) __init;
 void hdmi5_uninit_platform_driver(void);
 
-/* RFBI */
-int rfbi_init_platform_driver(void) __init;
-void rfbi_uninit_platform_driver(void);
-
 
 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
 static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)

drivers/gpu/drm/omapdrm/dss/omapdss.h

@@ -126,11 +126,6 @@ enum omap_dss_trans_key_type {
 	OMAP_DSS_COLOR_KEY_VID_SRC = 1,
 };
 
-enum omap_rfbi_te_mode {
-	OMAP_DSS_RFBI_TE_MODE_1 = 1,
-	OMAP_DSS_RFBI_TE_MODE_2 = 2,
-};
-
 enum omap_dss_signal_level {
 	OMAPDSS_SIG_ACTIVE_LOW,
 	OMAPDSS_SIG_ACTIVE_HIGH,
@@ -220,27 +215,6 @@ enum omap_dss_output_id {
 	OMAP_DSS_OUTPUT_HDMI	= 1 << 6,
 };
 
-/* RFBI */
-
-struct rfbi_timings {
-	int cs_on_time;
-	int cs_off_time;
-	int we_on_time;
-	int we_off_time;
-	int re_on_time;
-	int re_off_time;
-	int we_cycle_time;
-	int re_cycle_time;
-	int cs_pulse_width;
-	int access_time;
-
-	int clk_div;
-
-	u32 tim[5];             /* set by rfbi_convert_timings() */
-
-	int converted;
-};
-
 /* DSI */
 
 enum omap_dss_dsi_trans_mode {
@@ -623,11 +597,6 @@ struct omap_dss_device {
 	enum omap_display_type output_type;
 
 	union {
-		struct {
-			u8 channel;
-			u8 data_lines;
-		} rfbi;
-
 		struct {
 			int module;
 		} dsi;
@@ -642,7 +611,6 @@ struct omap_dss_device {
 
 	struct {
 		u8 pixel_size;
-		struct rfbi_timings rfbi_timings;
 	} ctrl;
 
 	const char *name;