mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 18:41:03 +00:00
eed2974218
Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> CC: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
144 lines
3.6 KiB
C
144 lines
3.6 KiB
C
/*
|
|
* ld9040 AMOLED LCD panel driver.
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* Donghwa Lee <dh09.lee@samsung.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <spi.h>
|
|
|
|
static const unsigned char SEQ_SWRESET[] = {
|
|
0x01,
|
|
};
|
|
|
|
static const unsigned char SEQ_USER_SETTING[] = {
|
|
0xF0, 0x5A, 0x5A
|
|
};
|
|
|
|
static const unsigned char SEQ_ELVSS_ON[] = {
|
|
0xB1, 0x0D, 0x00, 0x16,
|
|
};
|
|
|
|
static const unsigned char SEQ_TEMP_SWIRE[] = {
|
|
0xB2, 0x06, 0x06, 0x06, 0x06,
|
|
};
|
|
|
|
static const unsigned char SEQ_GTCON[] = {
|
|
0xF7, 0x09, 0x00, 0x00,
|
|
};
|
|
|
|
static const unsigned char SEQ_PANEL_CONDITION[] = {
|
|
0xF8, 0x05, 0x65, 0x96, 0x71, 0x7D, 0x19, 0x3B,
|
|
0x0D, 0x19, 0x7E, 0x0D, 0xE2, 0x00, 0x00, 0x7E,
|
|
0x7D, 0x07, 0x07, 0x20, 0x20, 0x20, 0x02, 0x02,
|
|
};
|
|
|
|
static const unsigned char SEQ_GAMMA_SET1[] = {
|
|
0xF9, 0x00, 0xA7, 0xB4, 0xAE, 0xBF, 0x00, 0x91,
|
|
0x00, 0xB2, 0xB4, 0xAA, 0xBB, 0x00, 0xAC, 0x00,
|
|
0xB3, 0xB1, 0xAA, 0xBC, 0x00, 0xB3,
|
|
};
|
|
|
|
static const unsigned char SEQ_GAMMA_CTRL[] = {
|
|
0xFB, 0x02, 0x5A,
|
|
};
|
|
|
|
static const unsigned char SEQ_APON[] = {
|
|
0xF3, 0x00, 0x00, 0x00, 0x0A, 0x02,
|
|
};
|
|
|
|
static const unsigned char SEQ_DISPCTL[] = {
|
|
0xF2, 0x02, 0x08, 0x08, 0x10, 0x10,
|
|
};
|
|
|
|
static const unsigned char SEQ_MANPWR[] = {
|
|
0xB0, 0x04,
|
|
};
|
|
|
|
static const unsigned char SEQ_PWR_CTRL[] = {
|
|
0xF4, 0x0A, 0x87, 0x25, 0x6A, 0x44, 0x02, 0x88,
|
|
};
|
|
|
|
static const unsigned char SEQ_SLPOUT[] = {
|
|
0x11,
|
|
};
|
|
|
|
static const unsigned char SEQ_SLPIN[] = {
|
|
0x10,
|
|
};
|
|
|
|
static const unsigned char SEQ_DISPON[] = {
|
|
0x29,
|
|
};
|
|
|
|
static const unsigned char SEQ_DISPOFF[] = {
|
|
0x28,
|
|
};
|
|
|
|
static void ld9040_spi_write(const unsigned char *wbuf, unsigned int size_cmd)
|
|
{
|
|
int i = 0;
|
|
|
|
/*
|
|
* Data are transmitted in 9-bit words:
|
|
* the first bit is command/parameter, the other are the value.
|
|
* The value's LSB is shifted to MSB position, to be sent as 9th bit
|
|
*/
|
|
|
|
unsigned int data_out = 0, data_in = 0;
|
|
for (i = 0; i < size_cmd; i++) {
|
|
data_out = wbuf[i] >> 1;
|
|
if (i != 0)
|
|
data_out += 0x0080;
|
|
if (wbuf[i] & 0x01)
|
|
data_out += 0x8000;
|
|
spi_xfer(NULL, 9, &data_out, &data_in, SPI_XFER_BEGIN);
|
|
}
|
|
}
|
|
|
|
void ld9040_cfg_ldo(void)
|
|
{
|
|
udelay(10);
|
|
|
|
ld9040_spi_write(SEQ_USER_SETTING,
|
|
ARRAY_SIZE(SEQ_USER_SETTING));
|
|
ld9040_spi_write(SEQ_PANEL_CONDITION,
|
|
ARRAY_SIZE(SEQ_PANEL_CONDITION));
|
|
ld9040_spi_write(SEQ_DISPCTL, ARRAY_SIZE(SEQ_DISPCTL));
|
|
ld9040_spi_write(SEQ_MANPWR, ARRAY_SIZE(SEQ_MANPWR));
|
|
ld9040_spi_write(SEQ_PWR_CTRL, ARRAY_SIZE(SEQ_PWR_CTRL));
|
|
ld9040_spi_write(SEQ_ELVSS_ON, ARRAY_SIZE(SEQ_ELVSS_ON));
|
|
ld9040_spi_write(SEQ_GTCON, ARRAY_SIZE(SEQ_GTCON));
|
|
ld9040_spi_write(SEQ_GAMMA_SET1, ARRAY_SIZE(SEQ_GAMMA_SET1));
|
|
ld9040_spi_write(SEQ_GAMMA_CTRL, ARRAY_SIZE(SEQ_GAMMA_CTRL));
|
|
ld9040_spi_write(SEQ_SLPOUT, ARRAY_SIZE(SEQ_SLPOUT));
|
|
|
|
udelay(120);
|
|
}
|
|
|
|
void ld9040_enable_ldo(unsigned int onoff)
|
|
{
|
|
if (onoff)
|
|
ld9040_spi_write(SEQ_DISPON, ARRAY_SIZE(SEQ_DISPON));
|
|
else
|
|
ld9040_spi_write(SEQ_DISPOFF, ARRAY_SIZE(SEQ_DISPOFF));
|
|
}
|