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| author | Shashank Sharma <shashank.sharma@intel.com> | 2015-09-01 19:41:45 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-10-02 14:45:25 +0200 |
| commit | baeac68a82f07f7c37bfc3d9624127b813a8d8b4 (patch) | |
| tree | 970da644b731b654ff82badc2628c450601f7b8b /drivers/gpu/drm/i915/intel_dsi.c | |
| parent | b389a45c6b2f9b310ddf631d23b9e3e045cf747b (diff) | |
| download | op-kernel-dev-baeac68a82f07f7c37bfc3d9624127b813a8d8b4.zip op-kernel-dev-baeac68a82f07f7c37bfc3d9624127b813a8d8b4.tar.gz | |
drm/i915/bxt: get_hw_state for BXT
Pick appropriate port control register (BXT or VLV), based on device.
Get the current hw state wrt Mipi port.
v2: Rebased on latest drm nightly branch.
v3: Removed the GET_DSI_PORT_CTRL Macro for consistency with earlier
implementations as per Jani's suggestion.
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 505501e..6591106 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -656,7 +656,7 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder, struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base); struct drm_device *dev = encoder->base.dev; enum intel_display_power_domain power_domain; - u32 dpi_enabled, func; + u32 dpi_enabled, func, ctrl_reg; enum port port; DRM_DEBUG_KMS("\n"); @@ -668,8 +668,9 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder, /* XXX: this only works for one DSI output */ for_each_dsi_port(port, intel_dsi->ports) { func = I915_READ(MIPI_DSI_FUNC_PRG(port)); - dpi_enabled = I915_READ(MIPI_PORT_CTRL(port)) & - DPI_ENABLE; + ctrl_reg = IS_BROXTON(dev) ? BXT_MIPI_PORT_CTRL(port) : + MIPI_PORT_CTRL(port); + dpi_enabled = I915_READ(ctrl_reg) & DPI_ENABLE; /* Due to some hardware limitations on BYT, MIPI Port C DPI * Enable bit does not get set. To check whether DSI Port C |
