diff options
Diffstat (limited to 'drivers/gpu/drm/bridge/ti-tfp410.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/ti-tfp410.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c index e3eb6364c0f7..dfde811f3411 100644 --- a/drivers/gpu/drm/bridge/ti-tfp410.c +++ b/drivers/gpu/drm/bridge/ti-tfp410.c @@ -220,7 +220,7 @@ static int tfp410_parse_timings(struct tfp410 *dvi, bool i2c) struct device_node *ep; u32 pclk_sample = 0; u32 bus_width = 24; - s32 deskew = 0; + u32 deskew = 0; /* Start with defaults. */ *timings = tfp410_default_timings; @@ -274,12 +274,12 @@ static int tfp410_parse_timings(struct tfp410 *dvi, bool i2c) } /* Get the setup and hold time from vendor-specific properties. */ - of_property_read_u32(dvi->dev->of_node, "ti,deskew", (u32 *)&deskew); - if (deskew < -4 || deskew > 3) + of_property_read_u32(dvi->dev->of_node, "ti,deskew", &deskew); + if (deskew > 7) return -EINVAL; - timings->setup_time_ps = min(0, 1200 - 350 * deskew); - timings->hold_time_ps = min(0, 1300 + 350 * deskew); + timings->setup_time_ps = min(0, 1200 - 350 * ((s32)deskew - 4)); + timings->hold_time_ps = min(0, 1300 + 350 * ((s32)deskew - 4)); return 0; } |