diff options
Diffstat (limited to 'drivers/gpu/drm/imx/imx-tve.c')
| -rw-r--r-- | drivers/gpu/drm/imx/imx-tve.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/gpu/drm/imx/imx-tve.c b/drivers/gpu/drm/imx/imx-tve.c index b63601d04601..4216e479a9be 100644 --- a/drivers/gpu/drm/imx/imx-tve.c +++ b/drivers/gpu/drm/imx/imx-tve.c @@ -191,10 +191,18 @@ static int tve_setup_vga(struct imx_tve *tve) /* set gain to (1 + 10/128) to provide 0.7V peak-to-peak amplitude */ ret = regmap_update_bits(tve->regmap, TVE_TVDAC0_CONT_REG, TVE_TVDAC_GAIN_MASK, 0x0a); + if (ret) + return ret; + ret = regmap_update_bits(tve->regmap, TVE_TVDAC1_CONT_REG, TVE_TVDAC_GAIN_MASK, 0x0a); + if (ret) + return ret; + ret = regmap_update_bits(tve->regmap, TVE_TVDAC2_CONT_REG, TVE_TVDAC_GAIN_MASK, 0x0a); + if (ret) + return ret; /* set configuration register */ mask = TVE_DATA_SOURCE_MASK | TVE_INP_VIDEO_FORM; @@ -204,16 +212,12 @@ static int tve_setup_vga(struct imx_tve *tve) mask |= TVE_TV_OUT_MODE_MASK | TVE_SYNC_CH_0_EN; val |= TVE_TV_OUT_RGB | TVE_SYNC_CH_0_EN; ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, mask, val); - if (ret < 0) { - dev_err(tve->dev, "failed to set configuration: %d\n", ret); + if (ret) return ret; - } /* set test mode (as documented) */ - ret = regmap_update_bits(tve->regmap, TVE_TST_MODE_REG, + return regmap_update_bits(tve->regmap, TVE_TST_MODE_REG, TVE_TVDAC_TEST_MODE_MASK, 1); - - return 0; } static enum drm_connector_status imx_tve_connector_detect( @@ -335,9 +339,11 @@ static void imx_tve_encoder_mode_set(struct drm_encoder *encoder, } if (tve->mode == TVE_MODE_VGA) - tve_setup_vga(tve); + ret = tve_setup_vga(tve); else - tve_setup_tvout(tve); + ret = tve_setup_tvout(tve); + if (ret) + dev_err(tve->dev, "failed to set configuration: %d\n", ret); } static void imx_tve_encoder_commit(struct drm_encoder *encoder) @@ -671,6 +677,8 @@ static int imx_tve_bind(struct device *dev, struct device *master, void *data) /* disable cable detection for VGA mode */ ret = regmap_write(tve->regmap, TVE_CD_CONT_REG, 0); + if (ret) + return ret; ret = imx_tve_register(drm, tve); if (ret) |