diff options
Diffstat (limited to 'drivers/gpu/drm/i915/dvo_ch7017.c')
| -rw-r--r-- | drivers/gpu/drm/i915/dvo_ch7017.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/dvo_ch7017.c b/drivers/gpu/drm/i915/dvo_ch7017.c index 71e7650a2994..86b27d1d90c2 100644 --- a/drivers/gpu/drm/i915/dvo_ch7017.c +++ b/drivers/gpu/drm/i915/dvo_ch7017.c @@ -359,6 +359,18 @@ static void ch7017_dpms(struct intel_dvo_device *dvo, bool enable) msleep(20); } +static bool ch7017_get_hw_state(struct intel_dvo_device *dvo) +{ + uint8_t val; + + ch7017_read(dvo, CH7017_LVDS_POWER_DOWN, &val); + + if (val & CH7017_LVDS_POWER_DOWN_EN) + return false; + else + return true; +} + static void ch7017_dump_regs(struct intel_dvo_device *dvo) { uint8_t val; @@ -396,6 +408,7 @@ struct intel_dvo_dev_ops ch7017_ops = { .mode_valid = ch7017_mode_valid, .mode_set = ch7017_mode_set, .dpms = ch7017_dpms, + .get_hw_state = ch7017_get_hw_state, .dump_regs = ch7017_dump_regs, .destroy = ch7017_destroy, }; |