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drm/i2c: tda998x: add DT support 

This patch adds DT support to the tda998x.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Jean-Francois Moine 2014-01-25 18:14:41 +01:00 committed by Russell King
parent 81b53a166f
commit 0d44ea1903
1 changed files with 22 additions and 0 deletions
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22
drivers/gpu/drm/i2c/tda998x_drv.c
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@ -1172,6 +1172,8 @@ tda998x_encoder_init(struct i2c_client *client,
struct drm_encoder_slave *encoder_slave)
{
struct tda998x_priv *priv;
struct device_node *np = client->dev.of_node;
u32 video;
int rev_lo, rev_hi, ret;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@ -1245,6 +1247,17 @@ tda998x_encoder_init(struct i2c_client *client,
cec_write(priv, REG_CEC_FRO_IM_CLK_CTRL,
CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
if (!np)
return 0; /* non-DT */
/* get the optional video properties */
ret = of_property_read_u32(np, "video-ports", &video);
if (ret == 0) {
priv->vip_cntrl_0 = video >> 16;
priv->vip_cntrl_1 = video >> 8;
priv->vip_cntrl_2 = video;
}
return 0;
fail:
@ -1259,6 +1272,14 @@ fail:
return -ENXIO;
}
#ifdef CONFIG_OF
static const struct of_device_id tda998x_dt_ids[] = {
{ .compatible = "nxp,tda998x", },
{ }
};
MODULE_DEVICE_TABLE(of, tda998x_dt_ids);
#endif
static struct i2c_device_id tda998x_ids[] = {
{ "tda998x", 0 },
{ }
@ -1271,6 +1292,7 @@ static struct drm_i2c_encoder_driver tda998x_driver = {
.remove = tda998x_remove,
.driver = {
.name = "tda998x",
.of_match_table = of_match_ptr(tda998x_dt_ids),
},
.id_table = tda998x_ids,
},