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backlight: add support for Toppoly TDO35S series to tdo24m lcd driver

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Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Mike Rapoport 2008-12-03 08:48:52 +00:00 committed by Richard Purdie
parent c835ee7f41
commit f4f6bda00f
3 changed files with 101 additions and 10 deletions
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4
drivers/video/backlight/Kconfig
View File

@ -52,11 +52,11 @@ config LCD_ILI9320
then say y to include a power driver for it.
config LCD_TDO24M
tristate "Toppoly TDO24M LCD Panels support"
tristate "Toppoly TDO24M and TDO35S LCD Panels support"
depends on LCD_CLASS_DEVICE && SPI_MASTER
default n
help
If you have a Toppoly TDO24M series LCD panel, say y here to
If you have a Toppoly TDO24M/TDO35S series LCD panel, say y here to
include the support for it.
config LCD_VGG2432A4

94
drivers/video/backlight/tdo24m.c
View File

@ -14,6 +14,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/spi/spi.h>
#include <linux/spi/tdo24m.h>
#include <linux/fb.h>
#include <linux/lcd.h>
@ -31,6 +32,9 @@ struct tdo24m {
struct spi_transfer xfer;
uint8_t *buf;
int (*adj_mode)(struct tdo24m *lcd, int mode);
int color_invert;
int power;
int mode;
};
@ -66,7 +70,7 @@ static uint32_t lcd_panel_off[] = {
CMD_NULL,
};
static uint32_t lcd_vga_pass_through[] = {
static uint32_t lcd_vga_pass_through_tdo24m[] = {
CMD1(0xB0, 0x16),
CMD1(0xBC, 0x80),
CMD1(0xE1, 0x00),
@ -75,7 +79,7 @@ static uint32_t lcd_vga_pass_through[] = {
CMD_NULL,
};
static uint32_t lcd_qvga_pass_through[] = {
static uint32_t lcd_qvga_pass_through_tdo24m[] = {
CMD1(0xB0, 0x16),
CMD1(0xBC, 0x81),
CMD1(0xE1, 0x00),
@ -84,7 +88,7 @@ static uint32_t lcd_qvga_pass_through[] = {
CMD_NULL,
};
static uint32_t lcd_vga_transfer[] = {
static uint32_t lcd_vga_transfer_tdo24m[] = {
CMD1(0xcf, 0x02), /* Blanking period control (1) */
CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */
CMD1(0xd1, 0x01), /* CKV timing control on/off */
@ -110,6 +114,35 @@ static uint32_t lcd_qvga_transfer[] = {
CMD_NULL,
};
static uint32_t lcd_vga_pass_through_tdo35s[] = {
CMD1(0xB0, 0x16),
CMD1(0xBC, 0x80),
CMD1(0xE1, 0x00),
CMD1(0x3B, 0x00),
CMD_NULL,
};
static uint32_t lcd_qvga_pass_through_tdo35s[] = {
CMD1(0xB0, 0x16),
CMD1(0xBC, 0x81),
CMD1(0xE1, 0x00),
CMD1(0x3B, 0x22),
CMD_NULL,
};
static uint32_t lcd_vga_transfer_tdo35s[] = {
CMD1(0xcf, 0x02), /* Blanking period control (1) */
CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */
CMD1(0xd1, 0x01), /* CKV timing control on/off */
CMD2(0xd2, 0x00, 0x1e), /* CKV 1,2 timing control */
CMD2(0xd3, 0x14, 0x28), /* OEV timing control */
CMD2(0xd4, 0x28, 0x64), /* ASW timing control (1) */
CMD1(0xd5, 0x28), /* ASW timing control (2) */
CMD0(0x21), /* Invert for normally black display */
CMD0(0x29), /* Display on */
CMD_NULL,
};
static uint32_t lcd_panel_config[] = {
CMD2(0xb8, 0xff, 0xf9), /* Output control */
CMD0(0x11), /* sleep out */
@ -148,6 +181,8 @@ static int tdo24m_writes(struct tdo24m *lcd, uint32_t *array)
int nparams, err = 0;
for (; *p != CMD_NULL; p++) {
if (!lcd->color_invert && *p == CMD0(0x21))
continue;
nparams = (*p >> 30) & 0x3;
@ -184,12 +219,33 @@ static int tdo24m_adj_mode(struct tdo24m *lcd, int mode)
{
switch (mode) {
case MODE_VGA:
tdo24m_writes(lcd, lcd_vga_pass_through);
tdo24m_writes(lcd, lcd_vga_pass_through_tdo24m);
tdo24m_writes(lcd, lcd_panel_config);
tdo24m_writes(lcd, lcd_vga_transfer);
tdo24m_writes(lcd, lcd_vga_transfer_tdo24m);
break;
case MODE_QVGA:
tdo24m_writes(lcd, lcd_qvga_pass_through);
tdo24m_writes(lcd, lcd_qvga_pass_through_tdo24m);
tdo24m_writes(lcd, lcd_panel_config);
tdo24m_writes(lcd, lcd_qvga_transfer);
break;
default:
return -EINVAL;
}
lcd->mode = mode;
return 0;
}
static int tdo35s_adj_mode(struct tdo24m *lcd, int mode)
{
switch (mode) {
case MODE_VGA:
tdo24m_writes(lcd, lcd_vga_pass_through_tdo35s);
tdo24m_writes(lcd, lcd_panel_config);
tdo24m_writes(lcd, lcd_vga_transfer_tdo35s);
break;
case MODE_QVGA:
tdo24m_writes(lcd, lcd_qvga_pass_through_tdo35s);
tdo24m_writes(lcd, lcd_panel_config);
tdo24m_writes(lcd, lcd_qvga_transfer);
break;
@ -213,7 +269,7 @@ static int tdo24m_power_on(struct tdo24m *lcd)
if (err)
goto out;
err = tdo24m_adj_mode(lcd, lcd->mode);
err = lcd->adj_mode(lcd, lcd->mode);
out:
return err;
}
@ -262,7 +318,7 @@ static int tdo24m_set_mode(struct lcd_device *ld, struct fb_videomode *m)
if (lcd->mode == mode)
return 0;
return tdo24m_adj_mode(lcd, mode);
return lcd->adj_mode(lcd, mode);
}
static struct lcd_ops tdo24m_ops = {
@ -276,8 +332,16 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
struct tdo24m *lcd;
struct spi_message *m;
struct spi_transfer *x;
struct tdo24m_platform_data *pdata;
enum tdo24m_model model;
int err;
pdata = spi->dev.platform_data;
if (pdata)
model = pdata->model;
else
model = TDO24M;
spi->bits_per_word = 8;
spi->mode = SPI_MODE_3;
err = spi_setup(spi);
@ -306,6 +370,20 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
x->tx_buf = &lcd->buf[0];
spi_message_add_tail(x, m);
switch (model) {
case TDO24M:
lcd->color_invert = 1;
lcd->adj_mode = tdo24m_adj_mode;
break;
case TDO35S:
lcd->adj_mode = tdo35s_adj_mode;
lcd->color_invert = 0;
break;
default:
dev_err(&spi->dev, "Unsupported model");
goto out_free;
}
lcd->lcd_dev = lcd_device_register("tdo24m", &spi->dev,
lcd, &tdo24m_ops);
if (IS_ERR(lcd->lcd_dev)) {

13
include/linux/spi/tdo24m.h Normal file
View File

@ -0,0 +1,13 @@
#ifndef __TDO24M_H__
#define __TDO24M_H__
enum tdo24m_model {
TDO24M,
TDO35S,
};
struct tdo24m_platform_data {
enum tdo24m_model model;
};
#endif /* __TDO24M_H__ */