From 41278511ffe4c4646a0fda588c1efc7486af09cd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 23 Feb 2022 15:13:07 +0200
Subject: drm/i915: Extract intel_splitter_adjust_timings()
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Git-commit: a8c0109c520092115fabdfa5dae340a7590b201a
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Let's not replicate the same piece of code to expand
the MSO segment timings to full width in many places.
Pull it into a helper
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220223131315.18016-6-ville.syrjala@linux.intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_display.c | 54 ++++++++++----------
1 file changed, 26 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e68f43ab88ce..51dc1f986465 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2724,6 +2724,30 @@ static void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state)
ilk_pipe_pixel_rate(crtc_state);
}
+static void intel_splitter_adjust_timings(const struct intel_crtc_state *crtc_state,
+ struct drm_display_mode *mode)
+{
+ int overlap = crtc_state->splitter.pixel_overlap;
+ int n = crtc_state->splitter.link_count;
+
+ if (!crtc_state->splitter.enable)
+ return;
+
+ /*
+ * eDP MSO uses segment timings from EDID for transcoder
+ * timings, but full mode for everything else.
+ *
+ * h_full = (h_segment - pixel_overlap) * link_count
+ */
+ mode->crtc_hdisplay = (mode->crtc_hdisplay - overlap) * n;
+ mode->crtc_hblank_start = (mode->crtc_hblank_start - overlap) * n;
+ mode->crtc_hblank_end = (mode->crtc_hblank_end - overlap) * n;
+ mode->crtc_hsync_start = (mode->crtc_hsync_start - overlap) * n;
+ mode->crtc_hsync_end = (mode->crtc_hsync_end - overlap) * n;
+ mode->crtc_htotal = (mode->crtc_htotal - overlap) * n;
+ mode->crtc_clock *= n;
+}
+
static void intel_crtc_readout_derived_state(struct intel_crtc_state *crtc_state)
{
struct drm_display_mode *mode = &crtc_state->hw.mode;
@@ -2747,22 +2771,7 @@ static void intel_crtc_readout_derived_state(struct intel_crtc_state *crtc_state
}
if (crtc_state->splitter.enable) {
- int n = crtc_state->splitter.link_count;
- int overlap = crtc_state->splitter.pixel_overlap;
-
- /*
- * eDP MSO uses segment timings from EDID for transcoder
- * timings, but full mode for everything else.
- *
- * h_full = (h_segment - pixel_overlap) * link_count
- */
- pipe_mode->crtc_hdisplay = (pipe_mode->crtc_hdisplay - overlap) * n;
- pipe_mode->crtc_hblank_start = (pipe_mode->crtc_hblank_start - overlap) * n;
- pipe_mode->crtc_hblank_end = (pipe_mode->crtc_hblank_end - overlap) * n;
- pipe_mode->crtc_hsync_start = (pipe_mode->crtc_hsync_start - overlap) * n;
- pipe_mode->crtc_hsync_end = (pipe_mode->crtc_hsync_end - overlap) * n;
- pipe_mode->crtc_htotal = (pipe_mode->crtc_htotal - overlap) * n;
- pipe_mode->crtc_clock *= n;
+ intel_splitter_adjust_timings(crtc_state, pipe_mode);
intel_mode_from_crtc_timings(pipe_mode, pipe_mode);
intel_mode_from_crtc_timings(adjusted_mode, pipe_mode);
@@ -2807,18 +2816,7 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
crtc_state->pipe_src_w /= 2;
}
- if (crtc_state->splitter.enable) {
- int n = crtc_state->splitter.link_count;
- int overlap = crtc_state->splitter.pixel_overlap;
-
- pipe_mode->crtc_hdisplay = (pipe_mode->crtc_hdisplay - overlap) * n;
- pipe_mode->crtc_hblank_start = (pipe_mode->crtc_hblank_start - overlap) * n;
- pipe_mode->crtc_hblank_end = (pipe_mode->crtc_hblank_end - overlap) * n;
- pipe_mode->crtc_hsync_start = (pipe_mode->crtc_hsync_start - overlap) * n;
- pipe_mode->crtc_hsync_end = (pipe_mode->crtc_hsync_end - overlap) * n;
- pipe_mode->crtc_htotal = (pipe_mode->crtc_htotal - overlap) * n;
- pipe_mode->crtc_clock *= n;
- }
+ intel_splitter_adjust_timings(crtc_state, pipe_mode);
intel_mode_from_crtc_timings(pipe_mode, pipe_mode);
--
2.38.1