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78c00ccc52
Now that the SPDX tag is in all fbtft files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* FB driver for the ILI9481 LCD Controller
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*
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* Copyright (c) 2014 Petr Olivka
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* Copyright (c) 2013 Noralf Tronnes
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <video/mipi_display.h>
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#include "fbtft.h"
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#define DRVNAME "fb_ili9481"
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#define WIDTH 320
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#define HEIGHT 480
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static const s16 default_init_sequence[] = {
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/* SLP_OUT - Sleep out */
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-1, MIPI_DCS_EXIT_SLEEP_MODE,
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-2, 50,
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/* Power setting */
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-1, 0xD0, 0x07, 0x42, 0x18,
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/* VCOM */
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-1, 0xD1, 0x00, 0x07, 0x10,
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/* Power setting for norm. mode */
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-1, 0xD2, 0x01, 0x02,
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/* Panel driving setting */
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-1, 0xC0, 0x10, 0x3B, 0x00, 0x02, 0x11,
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/* Frame rate & inv. */
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-1, 0xC5, 0x03,
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/* Pixel format */
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-1, MIPI_DCS_SET_PIXEL_FORMAT, 0x55,
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/* Gamma */
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-1, 0xC8, 0x00, 0x32, 0x36, 0x45, 0x06, 0x16,
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0x37, 0x75, 0x77, 0x54, 0x0C, 0x00,
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/* DISP_ON */
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-1, MIPI_DCS_SET_DISPLAY_ON,
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-3
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};
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static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
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{
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write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
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xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
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write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
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ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
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write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
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}
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#define HFLIP 0x01
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#define VFLIP 0x02
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#define ROW_X_COL 0x20
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static int set_var(struct fbtft_par *par)
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{
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switch (par->info->var.rotate) {
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case 270:
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write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
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ROW_X_COL | HFLIP | VFLIP | (par->bgr << 3));
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break;
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case 180:
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write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
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VFLIP | (par->bgr << 3));
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break;
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case 90:
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write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
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ROW_X_COL | (par->bgr << 3));
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break;
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default:
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write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
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HFLIP | (par->bgr << 3));
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break;
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}
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return 0;
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}
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static struct fbtft_display display = {
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.regwidth = 8,
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.width = WIDTH,
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.height = HEIGHT,
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.init_sequence = default_init_sequence,
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.fbtftops = {
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.set_addr_win = set_addr_win,
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.set_var = set_var,
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},
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};
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FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9481", &display);
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MODULE_ALIAS("spi:" DRVNAME);
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MODULE_ALIAS("platform:" DRVNAME);
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MODULE_ALIAS("spi:ili9481");
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MODULE_ALIAS("platform:ili9481");
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MODULE_DESCRIPTION("FB driver for the ILI9481 LCD Controller");
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MODULE_AUTHOR("Petr Olivka");
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MODULE_LICENSE("GPL");
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