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| author | Shashank Sharma <shashank.sharma@intel.com> | 2016-10-14 17:26:52 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-10-18 12:43:07 +0300 |
| commit | 910530c0630541aa5d2f20ea15f3108bfe2c1693 (patch) | |
| tree | 11cfb5d11b3ebdef556cd20898ede3c07fda1088 /drivers/gpu/drm/i915/intel_lspcon.c | |
| parent | ff66212415e3240cb4f79a09b00a03dd56d48b16 (diff) | |
| download | linux-910530c0630541aa5d2f20ea15f3108bfe2c1693.tar.xz | |
drm/i915: Add lspcon resume function
As per the software design, we are driving lspcon in
PCON mode. But while resuming from suspend, lspcon can go
in LS mode (which is its default operating mode on power on)
This patch adds a resume function for lspcon, which makes sure
its operating in PCON mode, post resume.
V2: Address review comments from Imre
- move lspcon_resume call to encoder->reset()
- use early returns
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476455212-27893-6-git-send-email-shashank.sharma@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lspcon.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lspcon.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c index 628ae6fbdcb1..d606f1a8f3b6 100644 --- a/drivers/gpu/drm/i915/intel_lspcon.c +++ b/drivers/gpu/drm/i915/intel_lspcon.c @@ -89,6 +89,14 @@ static bool lspcon_probe(struct intel_lspcon *lspcon) return true; } +void lspcon_resume(struct intel_lspcon *lspcon) +{ + if (lspcon_change_mode(lspcon, DRM_LSPCON_MODE_PCON, true)) + DRM_ERROR("LSPCON resume failed\n"); + else + DRM_DEBUG_KMS("LSPCON resume success\n"); +} + bool lspcon_init(struct intel_digital_port *intel_dig_port) { struct intel_dp *dp = &intel_dig_port->dp; |