mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
![Eva Rachel Retuya](/assets/img/avatar_default.png)
Fix alignment issues by properly indenting function parameters in accordance to the kernel coding style. Checkpatch pointed out this issue. CHECK: Alignment should match open parenthesis Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
210 lines
4.4 KiB
C
210 lines
4.4 KiB
C
/*
|
|
* FB driver for the HX8357D LCD Controller
|
|
* Copyright (C) 2015 Adafruit Industries
|
|
*
|
|
* Based on the HX8347D FB driver
|
|
* Copyright (C) 2013 Christian Vogelgsang
|
|
*
|
|
* Based on driver code found here: https://github.com/watterott/r61505u-Adapter
|
|
*
|
|
* 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"
|
|
#include "fb_hx8357d.h"
|
|
|
|
#define DRVNAME "fb_hx8357d"
|
|
#define WIDTH 320
|
|
#define HEIGHT 480
|
|
|
|
static int init_display(struct fbtft_par *par)
|
|
{
|
|
par->fbtftops.reset(par);
|
|
|
|
/* Reset things like Gamma */
|
|
write_reg(par, MIPI_DCS_SOFT_RESET);
|
|
usleep_range(5000, 7000);
|
|
|
|
/* setextc */
|
|
write_reg(par, HX8357D_SETC, 0xFF, 0x83, 0x57);
|
|
msleep(150);
|
|
|
|
/* setRGB which also enables SDO */
|
|
write_reg(par, HX8357_SETRGB, 0x00, 0x00, 0x06, 0x06);
|
|
|
|
/* -1.52V */
|
|
write_reg(par, HX8357D_SETCOM, 0x25);
|
|
|
|
/* Normal mode 70Hz, Idle mode 55 Hz */
|
|
write_reg(par, HX8357_SETOSC, 0x68);
|
|
|
|
/* Set Panel - BGR, Gate direction swapped */
|
|
write_reg(par, HX8357_SETPANEL, 0x05);
|
|
|
|
write_reg(par, HX8357_SETPWR1,
|
|
0x00, /* Not deep standby */
|
|
0x15, /* BT */
|
|
0x1C, /* VSPR */
|
|
0x1C, /* VSNR */
|
|
0x83, /* AP */
|
|
0xAA); /* FS */
|
|
|
|
write_reg(par, HX8357D_SETSTBA,
|
|
0x50, /* OPON normal */
|
|
0x50, /* OPON idle */
|
|
0x01, /* STBA */
|
|
0x3C, /* STBA */
|
|
0x1E, /* STBA */
|
|
0x08); /* GEN */
|
|
|
|
write_reg(par, HX8357D_SETCYC,
|
|
0x02, /* NW 0x02 */
|
|
0x40, /* RTN */
|
|
0x00, /* DIV */
|
|
0x2A, /* DUM */
|
|
0x2A, /* DUM */
|
|
0x0D, /* GDON */
|
|
0x78); /* GDOFF */
|
|
|
|
write_reg(par, HX8357D_SETGAMMA,
|
|
0x02,
|
|
0x0A,
|
|
0x11,
|
|
0x1d,
|
|
0x23,
|
|
0x35,
|
|
0x41,
|
|
0x4b,
|
|
0x4b,
|
|
0x42,
|
|
0x3A,
|
|
0x27,
|
|
0x1B,
|
|
0x08,
|
|
0x09,
|
|
0x03,
|
|
0x02,
|
|
0x0A,
|
|
0x11,
|
|
0x1d,
|
|
0x23,
|
|
0x35,
|
|
0x41,
|
|
0x4b,
|
|
0x4b,
|
|
0x42,
|
|
0x3A,
|
|
0x27,
|
|
0x1B,
|
|
0x08,
|
|
0x09,
|
|
0x03,
|
|
0x00,
|
|
0x01);
|
|
|
|
/* 16 bit */
|
|
write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
|
|
|
|
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0xC0);
|
|
|
|
/* TE off */
|
|
write_reg(par, MIPI_DCS_SET_TEAR_ON, 0x00);
|
|
|
|
/* tear line */
|
|
write_reg(par, MIPI_DCS_SET_TEAR_SCANLINE, 0x00, 0x02);
|
|
|
|
/* Exit Sleep */
|
|
write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
|
|
msleep(150);
|
|
|
|
/* display on */
|
|
write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
|
|
usleep_range(5000, 7000);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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, /* XSTART */
|
|
xe >> 8, xe & 0xff); /* XEND */
|
|
|
|
write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
|
|
ys >> 8, ys & 0xff, /* YSTART */
|
|
ye >> 8, ye & 0xff); /* YEND */
|
|
|
|
write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
|
|
}
|
|
|
|
#define HX8357D_MADCTL_MY 0x80
|
|
#define HX8357D_MADCTL_MX 0x40
|
|
#define HX8357D_MADCTL_MV 0x20
|
|
#define HX8357D_MADCTL_ML 0x10
|
|
#define HX8357D_MADCTL_RGB 0x00
|
|
#define HX8357D_MADCTL_BGR 0x08
|
|
#define HX8357D_MADCTL_MH 0x04
|
|
static int set_var(struct fbtft_par *par)
|
|
{
|
|
u8 val;
|
|
|
|
switch (par->info->var.rotate) {
|
|
case 270:
|
|
val = HX8357D_MADCTL_MV | HX8357D_MADCTL_MX;
|
|
break;
|
|
case 180:
|
|
val = 0;
|
|
break;
|
|
case 90:
|
|
val = HX8357D_MADCTL_MV | HX8357D_MADCTL_MY;
|
|
break;
|
|
default:
|
|
val = HX8357D_MADCTL_MX | HX8357D_MADCTL_MY;
|
|
break;
|
|
}
|
|
|
|
val |= (par->bgr ? HX8357D_MADCTL_RGB : HX8357D_MADCTL_BGR);
|
|
|
|
/* Memory Access Control */
|
|
write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct fbtft_display display = {
|
|
.regwidth = 8,
|
|
.width = WIDTH,
|
|
.height = HEIGHT,
|
|
.gamma_num = 2,
|
|
.gamma_len = 14,
|
|
.fbtftops = {
|
|
.init_display = init_display,
|
|
.set_addr_win = set_addr_win,
|
|
.set_var = set_var,
|
|
},
|
|
};
|
|
|
|
FBTFT_REGISTER_DRIVER(DRVNAME, "himax,hx8357d", &display);
|
|
|
|
MODULE_ALIAS("spi:" DRVNAME);
|
|
MODULE_ALIAS("platform:" DRVNAME);
|
|
MODULE_ALIAS("spi:hx8357d");
|
|
MODULE_ALIAS("platform:hx8357d");
|
|
|
|
MODULE_DESCRIPTION("FB driver for the HX8357D LCD Controller");
|
|
MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
|
|
MODULE_LICENSE("GPL");
|