diff options
| 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_tfp410.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_tfp410.c')
| -rw-r--r-- | drivers/gpu/drm/i915/dvo_tfp410.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/dvo_tfp410.c b/drivers/gpu/drm/i915/dvo_tfp410.c index 097b3e82b00f..e17f1b07e915 100644 --- a/drivers/gpu/drm/i915/dvo_tfp410.c +++ b/drivers/gpu/drm/i915/dvo_tfp410.c @@ -249,6 +249,19 @@ static void tfp410_dpms(struct intel_dvo_device *dvo, bool enable) tfp410_writeb(dvo, TFP410_CTL_1, ctl1); } +static bool tfp410_get_hw_state(struct intel_dvo_device *dvo) +{ + uint8_t ctl1; + + if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1)) + return false; + + if (ctl1 & TFP410_CTL_1_PD) + return true; + else + return false; +} + static void tfp410_dump_regs(struct intel_dvo_device *dvo) { uint8_t val, val2; @@ -299,6 +312,7 @@ struct intel_dvo_dev_ops tfp410_ops = { .mode_valid = tfp410_mode_valid, .mode_set = tfp410_mode_set, .dpms = tfp410_dpms, + .get_hw_state = tfp410_get_hw_state, .dump_regs = tfp410_dump_regs, .destroy = tfp410_destroy, }; |