[PATCH 04/12] drm/i915/icl_dsi: Move helpers to configure dsi dual link to intel_dss
Ankit Nautiyal
ankit.k.nautiyal at intel.com
Mon Aug 26 05:12:59 UTC 2024
Move the function to configure dss_ctl for dual_link dsi to intel_dss
files. While at it, use struct intel_display wherever possible.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/icl_dsi.c | 55 ++----------------------
drivers/gpu/drm/i915/display/intel_dss.c | 51 ++++++++++++++++++++++
drivers/gpu/drm/i915/display/intel_dss.h | 3 ++
3 files changed, 58 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 5ad5011e1fee..ab59638a8c6c 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -44,7 +44,7 @@
#include "intel_de.h"
#include "intel_dsi.h"
#include "intel_dsi_vbt.h"
-#include "intel_dss_regs.h"
+#include "intel_dss.h"
#include "intel_panel.h"
#include "intel_vdsc.h"
#include "skl_scaler.h"
@@ -274,55 +274,6 @@ static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder)
}
}
-static void configure_dual_link_mode(struct intel_encoder *encoder,
- const struct intel_crtc_state *pipe_config)
-{
- struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
- struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
- i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
- u32 dss_ctl1;
-
- /* FIXME: Move all DSS handling to intel_vdsc.c */
- if (DISPLAY_VER(dev_priv) >= 12) {
- struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
-
- dss_ctl1_reg = ICL_PIPE_DSS_CTL1(crtc->pipe);
- dss_ctl2_reg = ICL_PIPE_DSS_CTL2(crtc->pipe);
- } else {
- dss_ctl1_reg = DSS_CTL1;
- dss_ctl2_reg = DSS_CTL2;
- }
-
- dss_ctl1 = intel_de_read(dev_priv, dss_ctl1_reg);
- dss_ctl1 |= SPLITTER_ENABLE;
- dss_ctl1 &= ~OVERLAP_PIXELS_MASK;
- dss_ctl1 |= OVERLAP_PIXELS(intel_dsi->pixel_overlap);
-
- if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) {
- const struct drm_display_mode *adjusted_mode =
- &pipe_config->hw.adjusted_mode;
- u16 hactive = adjusted_mode->crtc_hdisplay;
- u16 dl_buffer_depth;
-
- dss_ctl1 &= ~DUAL_LINK_MODE_INTERLEAVE;
- dl_buffer_depth = hactive / 2 + intel_dsi->pixel_overlap;
-
- if (dl_buffer_depth > MAX_DL_BUFFER_TARGET_DEPTH)
- drm_err(&dev_priv->drm,
- "DL buffer depth exceed max value\n");
-
- dss_ctl1 &= ~LEFT_DL_BUF_TARGET_DEPTH_MASK;
- dss_ctl1 |= LEFT_DL_BUF_TARGET_DEPTH(dl_buffer_depth);
- intel_de_rmw(dev_priv, dss_ctl2_reg, RIGHT_DL_BUF_TARGET_DEPTH_MASK,
- RIGHT_DL_BUF_TARGET_DEPTH(dl_buffer_depth));
- } else {
- /* Interleave */
- dss_ctl1 |= DUAL_LINK_MODE_INTERLEAVE;
- }
-
- intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1);
-}
-
/* aka DSI 8X clock */
static int afe_clk(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state)
@@ -791,7 +742,9 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder,
}
/* configure stream splitting */
- configure_dual_link_mode(encoder, pipe_config);
+ intel_dss_configure_dsi_dual_link_mode(encoder, pipe_config,
+ intel_dsi->dual_link,
+ intel_dsi->pixel_overlap);
}
for_each_dsi_port(port, intel_dsi->ports) {
diff --git a/drivers/gpu/drm/i915/display/intel_dss.c b/drivers/gpu/drm/i915/display/intel_dss.c
index 9cb89fe656cb..f44dcac84aa4 100644
--- a/drivers/gpu/drm/i915/display/intel_dss.c
+++ b/drivers/gpu/drm/i915/display/intel_dss.c
@@ -7,6 +7,7 @@
#include "i915_reg_defs.h"
#include "intel_de.h"
#include "intel_display_types.h"
+#include "intel_dsi.h"
#include "intel_dss.h"
#include "intel_dss_regs.h"
@@ -85,3 +86,53 @@ void intel_dss_configure_mso(const struct intel_crtc_state *crtc_state)
SPLITTER_ENABLE | SPLITTER_CONFIGURATION_MASK |
OVERLAP_PIXELS_MASK, dss1);
}
+
+void intel_dss_configure_dsi_dual_link_mode(struct intel_encoder *encoder,
+ const struct intel_crtc_state *pipe_config,
+ u8 dual_link,
+ u8 pixel_overlap)
+{
+ struct intel_display *display = to_intel_display(encoder);
+ i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
+ u32 dss_ctl1;
+
+ if (DISPLAY_VER(display) >= 12) {
+ struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
+
+ dss_ctl1_reg = ICL_PIPE_DSS_CTL1(crtc->pipe);
+ dss_ctl2_reg = ICL_PIPE_DSS_CTL2(crtc->pipe);
+ } else {
+ dss_ctl1_reg = DSS_CTL1;
+ dss_ctl2_reg = DSS_CTL2;
+ }
+
+ dss_ctl1 = intel_de_read(display, dss_ctl1_reg);
+ dss_ctl1 |= SPLITTER_ENABLE;
+ dss_ctl1 &= ~OVERLAP_PIXELS_MASK;
+ dss_ctl1 |= OVERLAP_PIXELS(pixel_overlap);
+
+ if (dual_link == DSI_DUAL_LINK_FRONT_BACK) {
+ struct drm_i915_private *i915 = to_i915(display->drm);
+ const struct drm_display_mode *adjusted_mode =
+ &pipe_config->hw.adjusted_mode;
+ u16 hactive = adjusted_mode->crtc_hdisplay;
+ u16 dl_buffer_depth;
+
+ dss_ctl1 &= ~DUAL_LINK_MODE_INTERLEAVE;
+ dl_buffer_depth = hactive / 2 + pixel_overlap;
+
+ if (dl_buffer_depth > MAX_DL_BUFFER_TARGET_DEPTH)
+ drm_err(&i915->drm,
+ "DL buffer depth exceed max value\n");
+
+ dss_ctl1 &= ~LEFT_DL_BUF_TARGET_DEPTH_MASK;
+ dss_ctl1 |= LEFT_DL_BUF_TARGET_DEPTH(dl_buffer_depth);
+ intel_de_rmw(display, dss_ctl2_reg, RIGHT_DL_BUF_TARGET_DEPTH_MASK,
+ RIGHT_DL_BUF_TARGET_DEPTH(dl_buffer_depth));
+ } else {
+ /* Interleave */
+ dss_ctl1 |= DUAL_LINK_MODE_INTERLEAVE;
+ }
+
+ intel_de_write(display, dss_ctl1_reg, dss_ctl1);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_dss.h b/drivers/gpu/drm/i915/display/intel_dss.h
index 48f5d71254ee..8f8c62d0a963 100644
--- a/drivers/gpu/drm/i915/display/intel_dss.h
+++ b/drivers/gpu/drm/i915/display/intel_dss.h
@@ -16,6 +16,9 @@ u8 intel_dss_splitter_pipe_mask(struct intel_display *display);
void intel_dss_get_mso_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config);
void intel_dss_configure_mso(const struct intel_crtc_state *crtc_state);
+void intel_dss_configure_dsi_dual_link_mode(struct intel_encoder *encoder,
+ const struct intel_crtc_state *pipe_config,
+ u8 dual_link, u8 pixel_overlap);
#endif /* __INTEL_DSS_H__ */
--
2.45.2
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