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staging: olpc_dcon: drop support for DCON v1 

The v1 DCONs only existed for XO-1 prototypes (and even then, very very
early prototypes).  Drop support for v1 DCON.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andres Salomon 2011-07-21 20:37:55 -07:00 committed by Greg Kroah-Hartman
parent 24e2617050
commit 1b995ac22b
1 changed files with 10 additions and 21 deletions
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31
drivers/staging/olpc_dcon/olpc_dcon.c
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@ -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 |