diff options
Diffstat (limited to 'drivers/video/backlight/tdo24m.c')
| -rw-r--r-- | drivers/video/backlight/tdo24m.c | 94 |
1 files changed, 86 insertions, 8 deletions
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c index 8427669162ea..1dae7f8f3c6b 100644 --- a/drivers/video/backlight/tdo24m.c +++ b/drivers/video/backlight/tdo24m.c @@ -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)) { |