tdo24m.c revision 97d9655c7fcc8e408d06ac6fb4cdffecd51cf5e8
1dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao/* 2dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * tdo24m - SPI-based drivers for Toppoly TDO24M series LCD panels 3dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * 4dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * Copyright (C) 2008 Marvell International Ltd. 597d9655c7fcc8e408d06ac6fb4cdffecd51cf5e8Jingoo Han * Eric Miao <eric.miao@marvell.com> 6dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * 7dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * This program is free software; you can redistribute it and/or modify 8dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * it under the terms of the GNU General Public License version 2 as 9dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao * publishhed by the Free Software Foundation. 10dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao */ 11dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 12dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/module.h> 13dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/kernel.h> 14dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/init.h> 15dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/device.h> 16dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/spi/spi.h> 17f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport#include <linux/spi/tdo24m.h> 18dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/fb.h> 19dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#include <linux/lcd.h> 205a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 21dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 22dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) 23dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 24dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define TDO24M_SPI_BUFF_SIZE (4) 25dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define MODE_QVGA 0 26dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define MODE_VGA 1 27dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 28dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostruct tdo24m { 29dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct spi_device *spi_dev; 30dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct lcd_device *lcd_dev; 31dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 32dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct spi_message msg; 33dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct spi_transfer xfer; 34dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao uint8_t *buf; 35dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 36f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport int (*adj_mode)(struct tdo24m *lcd, int mode); 37f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport int color_invert; 38f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 39dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int power; 40dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int mode; 41dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 42dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 43dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao/* use bit 30, 31 as the indicator of command parameter number */ 44dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define CMD0(x) ((0 << 30) | (x)) 45dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define CMD1(x, x1) ((1 << 30) | ((x) << 9) | 0x100 | (x1)) 46dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define CMD2(x, x1, x2) ((2 << 30) | ((x) << 18) | 0x20000 |\ 47dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao ((x1) << 9) | 0x100 | (x2)) 48dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define CMD_NULL (-1) 49dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 50dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic uint32_t lcd_panel_reset[] = { 51dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x1), /* reset */ 52dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x0), /* nop */ 53dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x0), /* nop */ 54dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x0), /* nop */ 55dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 56dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 57dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 58dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic uint32_t lcd_panel_on[] = { 59dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x29), /* Display ON */ 60dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xB8, 0xFF, 0xF9), /* Output Control */ 61dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x11), /* Sleep out */ 62dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xB0, 0x16), /* Wake */ 63dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 64dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 65dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 66dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic uint32_t lcd_panel_off[] = { 67dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x28), /* Display OFF */ 68dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xB8, 0x80, 0x02), /* Output Control */ 69dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x10), /* Sleep in */ 70dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xB0, 0x00), /* Deep stand by in */ 71dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 72dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 73dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 74f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic uint32_t lcd_vga_pass_through_tdo24m[] = { 75dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xB0, 0x16), 76dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xBC, 0x80), 77dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xE1, 0x00), 78dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0x36, 0x50), 79dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0x3B, 0x00), 80dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 81dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 82dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 83f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic uint32_t lcd_qvga_pass_through_tdo24m[] = { 84dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xB0, 0x16), 85dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xBC, 0x81), 86dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xE1, 0x00), 87dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0x36, 0x50), 88dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0x3B, 0x22), 89dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 90dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 91dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 92f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic uint32_t lcd_vga_transfer_tdo24m[] = { 9397d9655c7fcc8e408d06ac6fb4cdffecd51cf5e8Jingoo Han CMD1(0xcf, 0x02), /* Blanking period control (1) */ 94dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */ 95dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xd1, 0x01), /* CKV timing control on/off */ 96dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xd2, 0x14, 0x00), /* CKV 1,2 timing control */ 97dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xd3, 0x1a, 0x0f), /* OEV timing control */ 98dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xd4, 0x1f, 0xaf), /* ASW timing control (1) */ 99dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xd5, 0x14), /* ASW timing control (2) */ 100dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x21), /* Invert for normally black display */ 101dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x29), /* Display on */ 102dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 103dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 104dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 105dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic uint32_t lcd_qvga_transfer[] = { 106dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xd6, 0x02), /* Blanking period control (1) */ 107dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xd7, 0x08, 0x04), /* Blanking period control (2) */ 108dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xd8, 0x01), /* CKV timing control on/off */ 109dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xd9, 0x00, 0x08), /* CKV 1,2 timing control */ 110dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xde, 0x05, 0x0a), /* OEV timing control */ 111dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xdf, 0x0a, 0x19), /* ASW timing control (1) */ 112dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xe0, 0x0a), /* ASW timing control (2) */ 113dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x21), /* Invert for normally black display */ 114dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x29), /* Display on */ 115dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 116dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 117dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 118f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic uint32_t lcd_vga_pass_through_tdo35s[] = { 119f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xB0, 0x16), 120f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xBC, 0x80), 121f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xE1, 0x00), 122f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0x3B, 0x00), 123f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD_NULL, 124f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport}; 125f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 126f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic uint32_t lcd_qvga_pass_through_tdo35s[] = { 127f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xB0, 0x16), 128f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xBC, 0x81), 129f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xE1, 0x00), 130f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0x3B, 0x22), 131f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD_NULL, 132f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport}; 133f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 134f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic uint32_t lcd_vga_transfer_tdo35s[] = { 13597d9655c7fcc8e408d06ac6fb4cdffecd51cf5e8Jingoo Han CMD1(0xcf, 0x02), /* Blanking period control (1) */ 136f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */ 137f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xd1, 0x01), /* CKV timing control on/off */ 138f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD2(0xd2, 0x00, 0x1e), /* CKV 1,2 timing control */ 139f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD2(0xd3, 0x14, 0x28), /* OEV timing control */ 140f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD2(0xd4, 0x28, 0x64), /* ASW timing control (1) */ 141f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD1(0xd5, 0x28), /* ASW timing control (2) */ 142f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD0(0x21), /* Invert for normally black display */ 143f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD0(0x29), /* Display on */ 144f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport CMD_NULL, 145f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport}; 146f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 147dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic uint32_t lcd_panel_config[] = { 148dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xb8, 0xff, 0xf9), /* Output control */ 149dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD0(0x11), /* sleep out */ 150dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xba, 0x01), /* Display mode (1) */ 151dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xbb, 0x00), /* Display mode (2) */ 152dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0x3a, 0x60), /* Display mode 18-bit RGB */ 153dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xbf, 0x10), /* Drive system change control */ 154dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb1, 0x56), /* Booster operation setup */ 155dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb2, 0x33), /* Booster mode setup */ 156dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb3, 0x11), /* Booster frequency setup */ 157dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb4, 0x02), /* Op amp/system clock */ 158dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb5, 0x35), /* VCS voltage */ 159dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb6, 0x40), /* VCOM voltage */ 160dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xb7, 0x03), /* External display signal */ 161dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xbd, 0x00), /* ASW slew rate */ 162dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xbe, 0x00), /* Dummy data for QuadData operation */ 163dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xc0, 0x11), /* Sleep out FR count (A) */ 164dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xc1, 0x11), /* Sleep out FR count (B) */ 165dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xc2, 0x11), /* Sleep out FR count (C) */ 166dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xc3, 0x20, 0x40), /* Sleep out FR count (D) */ 167dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xc4, 0x60, 0xc0), /* Sleep out FR count (E) */ 168dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xc5, 0x10, 0x20), /* Sleep out FR count (F) */ 169dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xc6, 0xc0), /* Sleep out FR count (G) */ 170dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xc7, 0x33, 0x43), /* Gamma 1 fine tuning (1) */ 171dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xc8, 0x44), /* Gamma 1 fine tuning (2) */ 172dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xc9, 0x33), /* Gamma 1 inclination adjustment */ 173dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD1(0xca, 0x00), /* Gamma 1 blue offset adjustment */ 174dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD2(0xec, 0x01, 0xf0), /* Horizontal clock cycles */ 175dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao CMD_NULL, 176dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 177dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 178dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_writes(struct tdo24m *lcd, uint32_t *array) 179dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 180dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct spi_transfer *x = &lcd->xfer; 181dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao uint32_t data, *p = array; 182dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int nparams, err = 0; 183dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 184dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao for (; *p != CMD_NULL; p++) { 185f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport if (!lcd->color_invert && *p == CMD0(0x21)) 186f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport continue; 187dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 188dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao nparams = (*p >> 30) & 0x3; 189dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 190dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao data = *p << (7 - nparams); 191dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao switch (nparams) { 192dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao case 0: 193dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[0] = (data >> 8) & 0xff; 194dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[1] = data & 0xff; 195dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao break; 196dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao case 1: 197dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[0] = (data >> 16) & 0xff; 198dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[1] = (data >> 8) & 0xff; 199dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[2] = data & 0xff; 200dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao break; 201dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao case 2: 202dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[0] = (data >> 24) & 0xff; 203dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[1] = (data >> 16) & 0xff; 204dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[2] = (data >> 8) & 0xff; 205dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->buf[3] = data & 0xff; 206dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao break; 207dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao default: 208dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao continue; 209dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao } 210dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao x->len = nparams + 2; 211dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao err = spi_sync(lcd->spi_dev, &lcd->msg); 212dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (err) 213dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao break; 214dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao } 215dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 216dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return err; 217dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 218dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 219dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_adj_mode(struct tdo24m *lcd, int mode) 220dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 221dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao switch (mode) { 222dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao case MODE_VGA: 223f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_vga_pass_through_tdo24m); 224dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao tdo24m_writes(lcd, lcd_panel_config); 225f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_vga_transfer_tdo24m); 226dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao break; 227dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao case MODE_QVGA: 228f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_qvga_pass_through_tdo24m); 229f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_panel_config); 230f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_qvga_transfer); 231f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport break; 232f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport default: 233f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport return -EINVAL; 234f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport } 235f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 236f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport lcd->mode = mode; 237f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport return 0; 238f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport} 239f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 240f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoportstatic int tdo35s_adj_mode(struct tdo24m *lcd, int mode) 241f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport{ 242f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport switch (mode) { 243f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport case MODE_VGA: 244f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_vga_pass_through_tdo35s); 245f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_panel_config); 246f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_vga_transfer_tdo35s); 247f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport break; 248f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport case MODE_QVGA: 249f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport tdo24m_writes(lcd, lcd_qvga_pass_through_tdo35s); 250dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao tdo24m_writes(lcd, lcd_panel_config); 251dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao tdo24m_writes(lcd, lcd_qvga_transfer); 252dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao break; 253dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao default: 254dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return -EINVAL; 255dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao } 256dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 257dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->mode = mode; 258dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return 0; 259dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 260dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 261dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_power_on(struct tdo24m *lcd) 262dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 263dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int err; 264dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 265dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao err = tdo24m_writes(lcd, lcd_panel_on); 266dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (err) 267dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao goto out; 268dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 269dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao err = tdo24m_writes(lcd, lcd_panel_reset); 270dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (err) 271dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao goto out; 272dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 273f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport err = lcd->adj_mode(lcd, lcd->mode); 274dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaoout: 275dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return err; 276dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 277dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 278dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_power_off(struct tdo24m *lcd) 279dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 280dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return tdo24m_writes(lcd, lcd_panel_off); 281dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 282dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 283dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_power(struct tdo24m *lcd, int power) 284dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 285dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int ret = 0; 286dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 287dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power)) 288dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao ret = tdo24m_power_on(lcd); 289dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power)) 290dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao ret = tdo24m_power_off(lcd); 291dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 292dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (!ret) 293dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->power = power; 294dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 295dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return ret; 296dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 297dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 298dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 299dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_set_power(struct lcd_device *ld, int power) 300dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 301dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = lcd_get_data(ld); 302dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return tdo24m_power(lcd, power); 303dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 304dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 305dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_get_power(struct lcd_device *ld) 306dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 307dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = lcd_get_data(ld); 308dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return lcd->power; 309dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 310dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 311dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_set_mode(struct lcd_device *ld, struct fb_videomode *m) 312dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 313dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = lcd_get_data(ld); 314dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int mode = MODE_QVGA; 315dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 316dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (m->xres == 640 || m->xres == 480) 317dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao mode = MODE_VGA; 318dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 319dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (lcd->mode == mode) 320dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return 0; 321dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 322f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport return lcd->adj_mode(lcd, mode); 323dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 324dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 325dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic struct lcd_ops tdo24m_ops = { 326dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .get_power = tdo24m_get_power, 327dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .set_power = tdo24m_set_power, 328dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .set_mode = tdo24m_set_mode, 329dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 330dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 3311b9e450de105c1429a15f4e2566695f4f425672aBill Pembertonstatic int tdo24m_probe(struct spi_device *spi) 332dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 333dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd; 334dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct spi_message *m; 335dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct spi_transfer *x; 336f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport struct tdo24m_platform_data *pdata; 337f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport enum tdo24m_model model; 338dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao int err; 339dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 340f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport pdata = spi->dev.platform_data; 341f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport if (pdata) 342f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport model = pdata->model; 343f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport else 344f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport model = TDO24M; 345f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 346dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao spi->bits_per_word = 8; 347dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao spi->mode = SPI_MODE_3; 348dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao err = spi_setup(spi); 349dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (err) 350dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return err; 351dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 352d073adc5caf03a928a230baf2d8a86b1f9a03710Jingoo Han lcd = devm_kzalloc(&spi->dev, sizeof(struct tdo24m), GFP_KERNEL); 353dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (!lcd) 354dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return -ENOMEM; 355dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 356dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->spi_dev = spi; 357dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->power = FB_BLANK_POWERDOWN; 358dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->mode = MODE_VGA; /* default to VGA */ 359dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 360d073adc5caf03a928a230baf2d8a86b1f9a03710Jingoo Han lcd->buf = devm_kzalloc(&spi->dev, TDO24M_SPI_BUFF_SIZE, GFP_KERNEL); 361d073adc5caf03a928a230baf2d8a86b1f9a03710Jingoo Han if (lcd->buf == NULL) 362dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return -ENOMEM; 363dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 364dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao m = &lcd->msg; 365dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao x = &lcd->xfer; 366dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 367dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao spi_message_init(m); 368dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 369f64dcac0b1247842db2530959cbe3df1cb1947c4Mike Rapoport x->cs_change = 1; 370dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao x->tx_buf = &lcd->buf[0]; 371dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao spi_message_add_tail(x, m); 372dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 373f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport switch (model) { 374f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport case TDO24M: 375f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport lcd->color_invert = 1; 376f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport lcd->adj_mode = tdo24m_adj_mode; 377f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport break; 378f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport case TDO35S: 379f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport lcd->adj_mode = tdo35s_adj_mode; 380f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport lcd->color_invert = 0; 381f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport break; 382f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport default: 383f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport dev_err(&spi->dev, "Unsupported model"); 384d073adc5caf03a928a230baf2d8a86b1f9a03710Jingoo Han return -EINVAL; 385f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport } 386f4f6bda00fc6bf995a35d8246db45aacaa9b3f09Mike Rapoport 387dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd->lcd_dev = lcd_device_register("tdo24m", &spi->dev, 388dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd, &tdo24m_ops); 389d073adc5caf03a928a230baf2d8a86b1f9a03710Jingoo Han if (IS_ERR(lcd->lcd_dev)) 390d073adc5caf03a928a230baf2d8a86b1f9a03710Jingoo Han return PTR_ERR(lcd->lcd_dev); 391dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 392dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao dev_set_drvdata(&spi->dev, lcd); 393dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao err = tdo24m_power(lcd, FB_BLANK_UNBLANK); 394dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao if (err) 395dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao goto out_unregister; 396dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 397dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return 0; 398dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 399dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaoout_unregister: 400dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd_device_unregister(lcd->lcd_dev); 401dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return err; 402dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 403dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 4047e4b9d0bb2a6464e541d51a1e59ba73470c7c453Bill Pembertonstatic int tdo24m_remove(struct spi_device *spi) 405dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 406dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = dev_get_drvdata(&spi->dev); 407dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 408dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao tdo24m_power(lcd, FB_BLANK_POWERDOWN); 409dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao lcd_device_unregister(lcd->lcd_dev); 410dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 411dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return 0; 412dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 413dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 414dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#ifdef CONFIG_PM 415dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_suspend(struct spi_device *spi, pm_message_t state) 416dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 417dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = dev_get_drvdata(&spi->dev); 418dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 419dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return tdo24m_power(lcd, FB_BLANK_POWERDOWN); 420dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 421dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 422dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic int tdo24m_resume(struct spi_device *spi) 423dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 424dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = dev_get_drvdata(&spi->dev); 425dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 426dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao return tdo24m_power(lcd, FB_BLANK_UNBLANK); 427dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 428dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#else 429dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define tdo24m_suspend NULL 430dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#define tdo24m_resume NULL 431dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao#endif 432dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 433dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao/* Power down all displays on reboot, poweroff or halt */ 434dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic void tdo24m_shutdown(struct spi_device *spi) 435dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao{ 436dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao struct tdo24m *lcd = dev_get_drvdata(&spi->dev); 437dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 438dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao tdo24m_power(lcd, FB_BLANK_POWERDOWN); 439dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao} 440dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 441dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miaostatic struct spi_driver tdo24m_driver = { 442dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .driver = { 443dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .name = "tdo24m", 444dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .owner = THIS_MODULE, 445dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao }, 446dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .probe = tdo24m_probe, 447d1723fa266aff677571cad0bac7203ed2e424823Bill Pemberton .remove = tdo24m_remove, 448dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .shutdown = tdo24m_shutdown, 449dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .suspend = tdo24m_suspend, 450dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao .resume = tdo24m_resume, 451dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao}; 452dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 453462dd83833065a6b3add3f102f4fe69efa1422e9Axel Linmodule_spi_driver(tdo24m_driver); 454dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric Miao 455dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric MiaoMODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"); 456dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric MiaoMODULE_DESCRIPTION("Driver for Toppoly TDO24M LCD Panel"); 457dd89ccb23a718a25dd989a27b04bf52871c9fb23Eric MiaoMODULE_LICENSE("GPL"); 458e0626e3844e8f430fc1a4417f523a00797df7ca6Anton VorontsovMODULE_ALIAS("spi:tdo24m"); 459