diff options
Diffstat (limited to 'drivers/gpu/drm/i915/dvo_sil164.c')
| -rw-r--r-- | drivers/gpu/drm/i915/dvo_sil164.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/dvo_sil164.c b/drivers/gpu/drm/i915/dvo_sil164.c index cc24c1cabec..4debd32e3e4 100644 --- a/drivers/gpu/drm/i915/dvo_sil164.c +++ b/drivers/gpu/drm/i915/dvo_sil164.c @@ -226,6 +226,21 @@ static void sil164_dpms(struct intel_dvo_device *dvo, bool enable) return; } +static bool sil164_get_hw_state(struct intel_dvo_device *dvo) +{ + int ret; + unsigned char ch; + + ret = sil164_readb(dvo, SIL164_REG8, &ch); + if (ret == false) + return false; + + if (ch & SIL164_8_PD) + return true; + else + return false; +} + static void sil164_dump_regs(struct intel_dvo_device *dvo) { uint8_t val; @@ -258,6 +273,7 @@ struct intel_dvo_dev_ops sil164_ops = { .mode_valid = sil164_mode_valid, .mode_set = sil164_mode_set, .dpms = sil164_dpms, + .get_hw_state = sil164_get_hw_state, .dump_regs = sil164_dump_regs, .destroy = sil164_destroy, }; |