mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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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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#include <common.h>
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#include <spi.h>
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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_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_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_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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}
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