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Viewing changes to roms/u-boot/drivers/video/ld9040.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/drivers/video/ld9040.c
 
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/*
 
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 * ld9040 AMOLED LCD panel driver.
 
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 *
 
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 * Copyright (C) 2012 Samsung Electronics
 
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 * Donghwa Lee <dh09.lee@samsung.com>
 
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 *
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 */
 
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#include <common.h>
 
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#include <spi.h>
 
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static const unsigned char SEQ_SWRESET[] = {
 
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        0x01,
 
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};
 
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static const unsigned char SEQ_USER_SETTING[] = {
 
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        0xF0, 0x5A, 0x5A
 
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};
 
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static const unsigned char SEQ_ELVSS_ON[] = {
 
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        0xB1, 0x0D, 0x00, 0x16,
 
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};
 
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static const unsigned char SEQ_TEMP_SWIRE[] = {
 
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        0xB2, 0x06, 0x06, 0x06, 0x06,
 
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};
 
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static const unsigned char SEQ_GTCON[] = {
 
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        0xF7, 0x09, 0x00, 0x00,
 
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};
 
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static const unsigned char SEQ_PANEL_CONDITION[] = {
 
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        0xF8, 0x05, 0x65, 0x96, 0x71, 0x7D, 0x19, 0x3B,
 
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        0x0D, 0x19, 0x7E, 0x0D, 0xE2, 0x00, 0x00, 0x7E,
 
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        0x7D, 0x07, 0x07, 0x20, 0x20, 0x20, 0x02, 0x02,
 
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};
 
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static const unsigned char SEQ_GAMMA_SET1[] = {
 
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        0xF9, 0x00, 0xA7, 0xB4, 0xAE, 0xBF, 0x00, 0x91,
 
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        0x00, 0xB2, 0xB4, 0xAA, 0xBB, 0x00, 0xAC, 0x00,
 
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        0xB3, 0xB1, 0xAA, 0xBC, 0x00, 0xB3,
 
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};
 
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static const unsigned char SEQ_GAMMA_CTRL[] = {
 
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        0xFB, 0x02, 0x5A,
 
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};
 
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static const unsigned char SEQ_APON[] = {
 
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        0xF3, 0x00, 0x00, 0x00, 0x0A, 0x02,
 
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};
 
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static const unsigned char SEQ_DISPCTL[] = {
 
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        0xF2, 0x02, 0x08, 0x08, 0x10, 0x10,
 
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};
 
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static const unsigned char SEQ_MANPWR[] = {
 
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        0xB0, 0x04,
 
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};
 
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static const unsigned char SEQ_PWR_CTRL[] = {
 
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        0xF4, 0x0A, 0x87, 0x25, 0x6A, 0x44, 0x02, 0x88,
 
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};
 
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static const unsigned char SEQ_SLPOUT[] = {
 
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        0x11,
 
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};
 
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static const unsigned char SEQ_SLPIN[] = {
 
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        0x10,
 
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};
 
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static const unsigned char SEQ_DISPON[] = {
 
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        0x29,
 
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};
 
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static const unsigned char SEQ_DISPOFF[] = {
 
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        0x28,
 
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};
 
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static void ld9040_spi_write(const unsigned char *wbuf, unsigned int size_cmd)
 
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{
 
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        int i = 0;
 
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        /*
 
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         * Data are transmitted in 9-bit words:
 
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         * the first bit is command/parameter, the other are the value.
 
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         * The value's LSB is shifted to MSB position, to be sent as 9th bit
 
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         */
 
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        unsigned int data_out = 0, data_in = 0;
 
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        for (i = 0; i < size_cmd; i++) {
 
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                data_out = wbuf[i] >> 1;
 
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                if (i != 0)
 
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                        data_out += 0x0080;
 
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                if (wbuf[i] & 0x01)
 
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                        data_out += 0x8000;
 
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                spi_xfer(NULL, 9, &data_out, &data_in, SPI_XFER_BEGIN);
 
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        }
 
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}
 
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void ld9040_cfg_ldo(void)
 
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{
 
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        udelay(10);
 
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        ld9040_spi_write(SEQ_USER_SETTING,
 
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                                        ARRAY_SIZE(SEQ_USER_SETTING));
 
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        ld9040_spi_write(SEQ_PANEL_CONDITION,
 
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                                        ARRAY_SIZE(SEQ_PANEL_CONDITION));
 
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        ld9040_spi_write(SEQ_DISPCTL, ARRAY_SIZE(SEQ_DISPCTL));
 
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        ld9040_spi_write(SEQ_MANPWR, ARRAY_SIZE(SEQ_MANPWR));
 
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        ld9040_spi_write(SEQ_PWR_CTRL, ARRAY_SIZE(SEQ_PWR_CTRL));
 
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        ld9040_spi_write(SEQ_ELVSS_ON, ARRAY_SIZE(SEQ_ELVSS_ON));
 
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        ld9040_spi_write(SEQ_GTCON, ARRAY_SIZE(SEQ_GTCON));
 
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        ld9040_spi_write(SEQ_GAMMA_SET1, ARRAY_SIZE(SEQ_GAMMA_SET1));
 
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        ld9040_spi_write(SEQ_GAMMA_CTRL, ARRAY_SIZE(SEQ_GAMMA_CTRL));
 
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        ld9040_spi_write(SEQ_SLPOUT, ARRAY_SIZE(SEQ_SLPOUT));
 
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        udelay(120);
 
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}
 
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void ld9040_enable_ldo(unsigned int onoff)
 
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{
 
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        if (onoff)
 
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                ld9040_spi_write(SEQ_DISPON, ARRAY_SIZE(SEQ_DISPON));
 
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        else
 
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                ld9040_spi_write(SEQ_DISPOFF, ARRAY_SIZE(SEQ_DISPOFF));
 
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}