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drivers: video: Add ld9040 video driver

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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>
This commit is contained in:
Piotr Wilczek 2012-10-19 05:34:05 +00:00 committed by Minkyu Kang
parent 9e26d8a4a0
commit eed2974218
3 changed files with 177 additions and 0 deletions
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1
drivers/video/Makefile
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@ -37,6 +37,7 @@ COBJS-$(CONFIG_EXYNOS_PWM_BL) += exynos_pwm_bl.o
COBJS-$(CONFIG_FSL_DIU_FB) += fsl_diu_fb.o videomodes.o
COBJS-$(CONFIG_S6E8AX0) += s6e8ax0.o
COBJS-$(CONFIG_S6E63D6) += s6e63d6.o
COBJS-$(CONFIG_LD9040) += ld9040.o
COBJS-$(CONFIG_SED156X) += sed156x.o
COBJS-$(CONFIG_VIDEO_AMBA) += amba.o
COBJS-$(CONFIG_VIDEO_CT69000) += ct69000.o videomodes.o

144
drivers/video/ld9040.c Normal file
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@ -0,0 +1,144 @@
/*
* 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));
}

32
include/ld9040.h Normal file
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@ -0,0 +1,32 @@
/*
* 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
*/
#ifndef __LD9040_H_
#define __LD9040_H_
void ld9040_cfg_ldo(void);
void ld9040_enable_ldo(unsigned int onoff);
#endif /* __LD9040_H_ */