From 18f2f88e93e47c05c79ad2a5b671f74b5ee9622c Mon Sep 17 00:00:00 2001
From: Aditya Swarup <aditya.swarup@intel.com>
Date: Fri, 5 Jun 2020 19:57:37 -0700
Subject: drm/i915/rkl: Don't try to read out DSI transcoders
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Git-commit: 617458cdc366c1c00e5934b6513f3d2b2c264c14
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
RKL doesn't have DSI outputs, so we shouldn't try to read out the DSI
transcoder registers.
v2(MattR):
- Just set the 'extra panel mask' to edp | dsi0 | dsi1 and then mask
against the platform's cpu_transcoder_mask to filter out the ones
that don't exist on a given platform. (Ville)
v3(MattR):
- Only include DSI transcoders on gen11+ again. (Ville)
- Use for_each_cpu_transcoder_masked() for loop. (Ville)
Cc: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200606025740.3308880-5-matthew.d.roper@intel.com
Reviewed-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_display.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b42b8b0597a8..70d3e168c85f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -10906,7 +10906,7 @@ static bool hsw_get_transcoder_state(struct intel_crtc *crtc,
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
enum intel_display_power_domain power_domain;
- unsigned long panel_transcoder_mask = 0;
+ unsigned long panel_transcoder_mask = BIT(TRANSCODER_EDP);
unsigned long enabled_panel_transcoders = 0;
enum transcoder panel_transcoder;
intel_wakeref_t wf;
@@ -10916,9 +10916,6 @@ static bool hsw_get_transcoder_state(struct intel_crtc *crtc,
panel_transcoder_mask |=
BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1);
- if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP))
- panel_transcoder_mask |= BIT(TRANSCODER_EDP);
-
/*
* The pipe->transcoder mapping is fixed with the exception of the eDP
* and DSI transcoders handled below.
@@ -10929,9 +10926,8 @@ static bool hsw_get_transcoder_state(struct intel_crtc *crtc,
* XXX: Do intel_display_power_get_if_enabled before reading this (for
* consistency and less surprising code; it's in always on power).
*/
- for_each_set_bit(panel_transcoder,
- &panel_transcoder_mask,
- ARRAY_SIZE(INTEL_INFO(dev_priv)->trans_offsets)) {
+ for_each_cpu_transcoder_masked(dev_priv, panel_transcoder,
+ panel_transcoder_mask) {
bool force_thru = false;
enum pipe trans_pipe;
--
2.29.2