diff options
| author |   Jean-Francois Moine <moinejf@free.fr> | 2014-01-25 18:14:41 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-02-13 19:41:50 +0000 |
| commit | 0d44ea190387e21a7e6f6d7c9dd44df2e85d007a (patch) | |
| tree | 5e3fb264d71c37539a44261ea3c93414c5571d49 | |
| parent | drm/i2c: tda998x: don't read write-only registers (diff) | |
| download | linux-dev-0d44ea190387e21a7e6f6d7c9dd44df2e85d007a.tar.xz linux-dev-0d44ea190387e21a7e6f6d7c9dd44df2e85d007a.zip | |
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>
| -rw-r--r-- | drivers/gpu/drm/i2c/tda998x_drv.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index d31e1c170bb6..1ea4d43781f2 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -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, }, |