powerpc/fsl: remove extraneous DIU platform functions

The Freescale DIU driver was recently updated to not require every DIU
platform function, so now we can remove the unneeded functions from
some boards.

Signed-off-by: Timur Tabi <[e-mail]>
Signed-off-by: Kumar Gala <[e-mail]>

arch/powerpc/platforms/512x/mpc512x_shared.c

···
 	bool		in_use;
 };
 
-void mpc512x_set_monitor_port(enum fsl_diu_monitor_port port)
-{
-}
-
 #define DIU_DIV_MASK	0x000000ff
 void mpc512x_set_pixel_clock(unsigned int pixclock)
 {
···
 		}
 	}
 
-	diu_ops.set_monitor_port	= mpc512x_set_monitor_port;
 	diu_ops.set_pixel_clock		= mpc512x_set_pixel_clock;
 	diu_ops.valid_monitor_port	= mpc512x_valid_monitor_port;
 	diu_ops.release_bootmem		= mpc512x_release_bootmem;

arch/powerpc/platforms/85xx/p1022_ds.c

···
 	(c2 << AD_COMP_2_SHIFT) | (c1 << AD_COMP_1_SHIFT) | \
 	(c0 << AD_COMP_0_SHIFT) | (size << AD_PIXEL_S_SHIFT))
 
-/**
- * p1022ds_get_pixel_format: return the Area Descriptor for a given pixel depth
- *
- * The Area Descriptor is a 32-bit value that determine which bits in each
- * pixel are to be used for each color.
- */
-static u32 p1022ds_get_pixel_format(enum fsl_diu_monitor_port port,
-				    unsigned int bits_per_pixel)
-{
-	switch (bits_per_pixel) {
-	case 32:
-		/* 0x88883316 */
-		return MAKE_AD(3, 2, 0, 1, 3, 8, 8, 8, 8);
-	case 24:
-		/* 0x88082219 */
-		return MAKE_AD(4, 0, 1, 2, 2, 0, 8, 8, 8);
-	case 16:
-		/* 0x65053118 */
-		return MAKE_AD(4, 2, 1, 0, 1, 5, 6, 5, 0);
-	default:
-		pr_err("fsl-diu: unsupported pixel depth %u\n", bits_per_pixel);
-		return 0;
-	}
-}
-
-/**
- * p1022ds_set_gamma_table: update the gamma table, if necessary
- *
- * On some boards, the gamma table for some ports may need to be modified.
- * This is not the case on the P1022DS, so we do nothing.
-*/
-static void p1022ds_set_gamma_table(enum fsl_diu_monitor_port port,
-				    char *gamma_table_base)
-{
-}
-
 struct fsl_law {
 	u32	lawbar;
 	u32	reserved1;
···
 		ppc_md.progress("p1022_ds_setup_arch()", 0);
 
 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-	diu_ops.get_pixel_format	= p1022ds_get_pixel_format;
-	diu_ops.set_gamma_table		= p1022ds_set_gamma_table;
 	diu_ops.set_monitor_port	= p1022ds_set_monitor_port;
 	diu_ops.set_pixel_clock		= p1022ds_set_pixel_clock;
 	diu_ops.valid_monitor_port	= p1022ds_valid_monitor_port;

arch/powerpc/platforms/85xx/p1022_rdk.c

···
 #define CLKDVDR_PXCLK_MASK	0x00FF0000
 
 /**
- * p1022rdk_set_monitor_port: switch the output to a different monitor port
- */
-static void p1022rdk_set_monitor_port(enum fsl_diu_monitor_port port)
-{
-	if (port != FSL_DIU_PORT_DVI) {
-		pr_err("p1022rdk: unsupported monitor port %i\n", port);
-		return;
-	}
-}
-
-/**
  * p1022rdk_set_pixel_clock: program the DIU's clock
  *
  * @pixclock: the wavelength, in picoseconds, of the clock
···
 		ppc_md.progress("p1022_rdk_setup_arch()", 0);
 
 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-	diu_ops.set_monitor_port	= p1022rdk_set_monitor_port;
 	diu_ops.set_pixel_clock		= p1022rdk_set_pixel_clock;
 	diu_ops.valid_monitor_port	= p1022rdk_valid_monitor_port;
 #endif