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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-07-02 17:09:45 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-09-06 09:58:52 +0400 |
| commit | 732ce74f4adfcdac84862fb74c6897b4a152d5e1 (patch) | |
| tree | dd7f9c2f30d4038f113973c17bb81788ee96f319 /drivers/gpu/drm/i915/dvo_ivch.c | |
| parent | 4ac41f47f8f6ba1d05b39783ea0819435074ef37 (diff) | |
| download | linux-732ce74f4adfcdac84862fb74c6897b4a152d5e1.tar.xz | |
drm/i915/dvo: implement get_hw_state
Similar to the sdvo code we poke the dvo encoder whether the output is
active. Safe that dvo encoders are not standardized, so this requires
a new callback into the dvo chip driver.
Hence implement that for all 6 dvo drivers.
v2: With the newly added ns2501 we now have 6 dvo drivers instead of
just 5 ...
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/dvo_ivch.c')
| -rw-r--r-- | drivers/gpu/drm/i915/dvo_ivch.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/dvo_ivch.c b/drivers/gpu/drm/i915/dvo_ivch.c index fa8ff6b050fa..baaf65bf0bdd 100644 --- a/drivers/gpu/drm/i915/dvo_ivch.c +++ b/drivers/gpu/drm/i915/dvo_ivch.c @@ -323,6 +323,20 @@ static void ivch_dpms(struct intel_dvo_device *dvo, bool enable) udelay(16 * 1000); } +static bool ivch_get_hw_state(struct intel_dvo_device *dvo) +{ + uint16_t vr01; + + /* Set the new power state of the panel. */ + if (!ivch_read(dvo, VR01, &vr01)) + return false; + + if (vr01 & VR01_LCD_ENABLE) + return true; + else + return false; +} + static void ivch_mode_set(struct intel_dvo_device *dvo, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) @@ -413,6 +427,7 @@ static void ivch_destroy(struct intel_dvo_device *dvo) struct intel_dvo_dev_ops ivch_ops = { .init = ivch_init, .dpms = ivch_dpms, + .get_hw_state = ivch_get_hw_state, .mode_valid = ivch_mode_valid, .mode_set = ivch_mode_set, .detect = ivch_detect, |