Release 4.11 drivers/staging/fbtft/fb_ili9481.c
/*
* FB driver for the ILI9481 LCD Controller
*
* Copyright (c) 2014 Petr Olivka
* Copyright (c) 2013 Noralf Tronnes
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <video/mipi_display.h>
#include "fbtft.h"
#define DRVNAME "fb_ili9481"
#define WIDTH 320
#define HEIGHT 480
static s16 default_init_sequence[] = {
/* SLP_OUT - Sleep out */
-1, MIPI_DCS_EXIT_SLEEP_MODE,
-2, 50,
/* Power setting */
-1, 0xD0, 0x07, 0x42, 0x18,
/* VCOM */
-1, 0xD1, 0x00, 0x07, 0x10,
/* Power setting for norm. mode */
-1, 0xD2, 0x01, 0x02,
/* Panel driving setting */
-1, 0xC0, 0x10, 0x3B, 0x00, 0x02, 0x11,
/* Frame rate & inv. */
-1, 0xC5, 0x03,
/* Pixel format */
-1, MIPI_DCS_SET_PIXEL_FORMAT, 0x55,
/* Gamma */
-1, 0xC8, 0x00, 0x32, 0x36, 0x45, 0x06, 0x16,
0x37, 0x75, 0x77, 0x54, 0x0C, 0x00,
/* DISP_ON */
-1, MIPI_DCS_SET_DISPLAY_ON,
-3
};
static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
{
write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Petazzoni | 73 | 96.05% | 1 | 50.00% |
| Priit Laes | 3 | 3.95% | 1 | 50.00% |
| Total | 76 | 100.00% | 2 | 100.00% |
#define HFLIP 0x01
#define VFLIP 0x02
#define ROW_X_COL 0x20
static int set_var(struct fbtft_par *par)
{
switch (par->info->var.rotate) {
case 270:
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
ROW_X_COL | HFLIP | VFLIP | (par->bgr << 3));
break;
case 180:
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
VFLIP | (par->bgr << 3));
break;
case 90:
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
ROW_X_COL | (par->bgr << 3));
break;
default:
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
HFLIP | (par->bgr << 3));
break;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Petazzoni | 106 | 94.64% | 1 | 33.33% |
| Priit Laes | 4 | 3.57% | 1 | 33.33% |
| Eva Rachel Retuya | 2 | 1.79% | 1 | 33.33% |
| Total | 112 | 100.00% | 3 | 100.00% |
static struct fbtft_display display = {
.regwidth = 8,
.width = WIDTH,
.height = HEIGHT,
.init_sequence = default_init_sequence,
.fbtftops = {
.set_addr_win = set_addr_win,
.set_var = set_var,
},
};
FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9481", &display);
MODULE_ALIAS("spi:" DRVNAME);
MODULE_ALIAS("platform:" DRVNAME);
MODULE_ALIAS("spi:ili9481");
MODULE_ALIAS("platform:ili9481");
MODULE_DESCRIPTION("FB driver for the ILI9481 LCD Controller");
MODULE_AUTHOR("Petr Olivka");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Petazzoni | 425 | 95.94% | 1 | 20.00% |
| Priit Laes | 13 | 2.93% | 1 | 20.00% |
| Eva Rachel Retuya | 3 | 0.68% | 1 | 20.00% |
| Anish Bhatt | 1 | 0.23% | 1 | 20.00% |
| Joe Perches | 1 | 0.23% | 1 | 20.00% |
| Total | 443 | 100.00% | 5 | 100.00% |
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