diff options
| author | Vandita Kulkarni <vandita.kulkarni@intel.com> | 2019-11-19 12:50:04 +0530 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2019-11-19 17:49:28 +0200 |
| commit | 6d73af2767bb4855a3761a602c6cdde62640a185 (patch) | |
| tree | f34cd107ce88d318aa6a5bb5a5dcc09b7c497a14 /drivers/gpu/drm/i915/display/intel_display.c | |
| parent | 530197795fac4e0cc0364a52c22791bfd03b625d (diff) | |
drm/i915/dsi: Do not read the transcoder register.
As per the Bspec, port mapping is fixed for mipi dsi.
v2: Reuse the existing function (Jani)
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191119072004.4093-1-vandita.kulkarni@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 1558aefc2fd9..a7e55c9dc40e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -10577,16 +10577,21 @@ static void haswell_get_ddi_port_state(struct intel_crtc *crtc, struct intel_crtc_state *pipe_config) { struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; struct intel_shared_dpll *pll; enum port port; u32 tmp; - tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); - - if (INTEL_GEN(dev_priv) >= 12) - port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp); - else - port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp); + if (transcoder_is_dsi(cpu_transcoder)) { + port = (cpu_transcoder == TRANSCODER_DSI_A) ? + PORT_A : PORT_B; + } else { + tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); + if (INTEL_GEN(dev_priv) >= 12) + port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp); + else + port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp); + } if (INTEL_GEN(dev_priv) >= 11) icelake_get_ddi_pll(dev_priv, port, pipe_config); |