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Commit 44017631 authored by Priit Laes's avatar Priit Laes Committed by Greg Kroah-Hartman
Browse files

staging: fbtft: Use standard MIPI DCS command defines for tinylcd 



This patch makes use of the standard MIPI Display Command Set to remove
some of the magic constants found in source code.

Signed-off-by: default avatarPriit Laes <plaes@plaes.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a79cb390

drivers/staging/fbtft/fb_tinylcd.c

+14 −14
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/delay.h>

#include <video/mipi_display.h>



#include "fbtft.h"
@@ -38,7 +39,7 @@ static int init_display(struct fbtft_par *par) 
	write_reg(par, 0xB4, 0x02);

	write_reg(par, 0xB6, 0x00, 0x22, 0x3B);

	write_reg(par, 0xB7, 0x07);

	write_reg(par, 0x36, 0x58);

	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x58);

	write_reg(par, 0xF0, 0x36, 0xA5, 0xD3);

	write_reg(par, 0xE5, 0x80);

	write_reg(par, 0xE5, 0x01);
@@ -47,24 +48,23 @@ static int init_display(struct fbtft_par *par) 
	write_reg(par, 0xF0, 0x36, 0xA5, 0x53);

	write_reg(par, 0xE0, 0x00, 0x35, 0x33, 0x00, 0x00, 0x00,

			     0x00, 0x35, 0x33, 0x00, 0x00, 0x00);

	write_reg(par, 0x3A, 0x55);

	write_reg(par, 0x11);

	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);

	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);

	udelay(250);

	write_reg(par, 0x29);

	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);



	return 0;

}



static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)

{

	/* Column address */

	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);

	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,

		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);



	/* Row address */

	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);

	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,

		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);



	/* Memory write */

	write_reg(par, 0x2C);

	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);

}



static int set_var(struct fbtft_par *par)
@@ -72,19 +72,19 @@ static int set_var(struct fbtft_par *par) 
	switch (par->info->var.rotate) {

	case 270:

		write_reg(par, 0xB6, 0x00, 0x02, 0x3B);

		write_reg(par, 0x36, 0x28);

		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x28);

		break;

	case 180:

		write_reg(par, 0xB6, 0x00, 0x22, 0x3B);

		write_reg(par, 0x36, 0x58);

		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x58);

		break;

	case 90:

		write_reg(par, 0xB6, 0x00, 0x22, 0x3B);

		write_reg(par, 0x36, 0x38);

		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x38);

		break;

	default:

		write_reg(par, 0xB6, 0x00, 0x22, 0x3B);

		write_reg(par, 0x36, 0x08);

		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x08);

		break;

	}