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authorJani Nikula <jani.nikula@intel.com>2018-04-26 11:25:25 +0300
committerJani Nikula <jani.nikula@intel.com>2018-04-26 18:21:02 +0300
commitdd519418f5130ce9ca08256b3383bf0e529dbf81 (patch)
tree5fcdc56d189a2cb438a0aac31af3dbfdd17290d0 /drivers/gpu/drm
parent87251120553c82eda4ea109a8a52efe6c8ee0cc4 (diff)
drm/i915/dp: move link_bw and rate_select debugging where used
We call intel_dp_compute_rate() in intel_dp_compute_config() only to be able to debug log the link_bw and rate_select parameters; we don't use the parameters here for anything else. We call intel_dp_compute_rate() again during link training where we actually need and use the parameters. Move the debug logging of link_bw and rate_select to intel_dp_link_training_clock_recovery(), and clean up the extra intel_dp_compute_rate() call and extra clutter from the already overcrowded intel_dp_compute_config(). v2: Rewrote commit message (Rodrigo, Manasi) Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/c5cf6a179e2d244eceb6bb80a792765d9efbee4f.1524730974.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c9
-rw-r--r--drivers/gpu/drm/i915/intel_dp_link_training.c5
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 5f4b30faf6a2..81cf363e71af 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1706,7 +1706,6 @@ intel_dp_compute_config(struct intel_encoder *encoder,
int bpp, mode_rate;
int link_avail, link_clock;
int common_len;
- uint8_t link_bw, rate_select;
bool reduce_m_n = drm_dp_has_quirk(&intel_dp->desc,
DP_DPCD_QUIRK_LIMITED_M_N);
@@ -1852,12 +1851,8 @@ found:
pipe_config->pipe_bpp = bpp;
pipe_config->port_clock = intel_dp->common_rates[clock];
- intel_dp_compute_rate(intel_dp, pipe_config->port_clock,
- &link_bw, &rate_select);
-
- DRM_DEBUG_KMS("DP link bw %02x rate select %02x lane count %d clock %d bpp %d\n",
- link_bw, rate_select, pipe_config->lane_count,
- pipe_config->port_clock, bpp);
+ DRM_DEBUG_KMS("DP lane count %d clock %d bpp %d\n",
+ pipe_config->lane_count, pipe_config->port_clock, bpp);
DRM_DEBUG_KMS("DP link bw required %i available %i\n",
mode_rate, link_avail);
diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
index f59b59bb0a21..3fcaa98b9055 100644
--- a/drivers/gpu/drm/i915/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
@@ -139,6 +139,11 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
intel_dp_compute_rate(intel_dp, intel_dp->link_rate,
&link_bw, &rate_select);
+ if (link_bw)
+ DRM_DEBUG_KMS("Using LINK_BW_SET value %02x\n", link_bw);
+ else
+ DRM_DEBUG_KMS("Using LINK_RATE_SET value %02x\n", rate_select);
+
/* Write the link configuration data */
link_config[0] = link_bw;
link_config[1] = intel_dp->lane_count;