diff options
| -rw-r--r-- | drivers/staging/olpc_dcon/olpc_dcon.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c index cf4b45440f67..ae18cd455fd9 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon.c +++ b/drivers/staging/olpc_dcon/olpc_dcon.c @@ -88,29 +88,18 @@ static int dcon_hw_init(struct dcon_priv *dcon, int is_init) } if (ver < 0xdc02) { - /* Initialize the DCON registers */ - - /* Start with work-arounds for DCON ASIC */ - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x0b, 0x007a); - i2c_smbus_write_word_data(client, 0x36, 0x025c); - i2c_smbus_write_word_data(client, 0x37, 0x025e); - - /* Initialise SDRAM */ - - i2c_smbus_write_word_data(client, 0x3b, 0x002b); - i2c_smbus_write_word_data(client, 0x41, 0x0101); - i2c_smbus_write_word_data(client, 0x42, 0x0101); - } else { - /* SDRAM setup/hold time */ - i2c_smbus_write_word_data(client, 0x3a, 0xc040); - i2c_smbus_write_word_data(client, 0x41, 0x0000); - i2c_smbus_write_word_data(client, 0x41, 0x0101); - i2c_smbus_write_word_data(client, 0x42, 0x0101); + dev_err(&dcon->client->dev, + "DCON v1 is unsupported, giving up..\n"); + rc = -ENODEV; + goto err; } + /* SDRAM setup/hold time */ + i2c_smbus_write_word_data(client, 0x3a, 0xc040); + i2c_smbus_write_word_data(client, 0x41, 0x0000); + i2c_smbus_write_word_data(client, 0x41, 0x0101); + i2c_smbus_write_word_data(client, 0x42, 0x0101); + /* Colour swizzle, AA, no passthrough, backlight */ if (is_init) { dcon->disp_mode = MODE_PASSTHRU | MODE_BL_ENABLE | |