- 14 8月, 2021 3 次提交
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由 Jani Nikula 提交于
We use encoder->get_buf_trans() in many places, for example intel_ddi_dp_voltage_max(), and the hook was set to some old platform's function for DG2 SNPS PHY. Convert SNPS PHY to use the same translation mechanisms as everything else. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210813115151.19290-2-jani.nikula@intel.com
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由 Jani Nikula 提交于
Needed in the future. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210813115151.19290-1-jani.nikula@intel.com
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由 Jani Nikula 提交于
Less is more, fewer lines to wonder about. Cc: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210813115610.20010-1-jani.nikula@intel.com
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- 13 8月, 2021 2 次提交
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由 Jani Nikula 提交于
ADL-P supports stream splitter on pipe B in addition to pipe A. Update the sanity check in intel_ddi_mso_get_config() to reflect this, and remove the check in intel_ddi_mso_configure() as redundant with encoder->pipe_mask. Abstract the splitter pipe mask to a single point of truth while at it to avoid similar mistakes in the future. Fixes: 7bc188cc ("drm/i915/adl_p: enable MSO on pipe B") Cc: Uma Shankar <uma.shankar@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: NSwati Sharma <swati2.sharma@intel.com> Tested-by: NSwati Sharma <swati2.sharma@intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210812132354.10885-1-jani.nikula@intel.com
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由 Imre Deak 提交于
Atm the EFI FB platform driver gets a runtime PM reference for the associated GFX PCI device during probing the EFI FB platform device and releases it only when the platform device gets unbound. When fbcon switches to the FB provided by the PCI device's driver (for instance i915/drmfb), the EFI FB will get only unregistered without the EFI FB platform device getting unbound, keeping the runtime PM reference acquired during the platform device probing. This reference will prevent the PCI driver from runtime suspending the device. Fix this by releasing the RPM reference from the EFI FB's destroy hook, called when the FB gets unregistered. While at it assert that pm_runtime_get_sync() didn't fail. v2: - Move pm_runtime_get_sync() before register_framebuffer() to avoid its race wrt. efifb_destroy()->pm_runtime_put(). (Daniel) - Assert that pm_runtime_get_sync() didn't fail. - Clarify commit message wrt. platform/PCI device/driver and driver removal vs. device unbinding. Fixes: a6c0fd3d ("efifb: Ensure graphics device for efifb stays at PCI D0") Cc: Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1) Acked-by: NAlex Deucher <alexander.deucher@amd.com> Acked-by: NKai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: NImre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210809133146.2478382-1-imre.deak@intel.com
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- 12 8月, 2021 2 次提交
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由 Anshuman Gupta 提交于
dispcnlunit1_cp_xosc_clkreq clock observed to be active on TGL-H platform despite Wa_14010685332 original sequence, thus blocks entry to deeper s0ix state. The Tweaked Wa_14010685332 sequence fixes this issue, therefore use tweaked Wa_14010685332 sequence for every PCH since PCH_CNP. v2: - removed RKL from comment and simplified condition. [Rodrigo] Fixes: b896898c ("drm/i915: Tweaked Wa_14010685332 for PCHs used on gen11 platforms") Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: NAnshuman Gupta <anshuman.gupta@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210810113112.31739-2-anshuman.gupta@intel.com
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由 Matt Roper 提交于
The SFC_DONE register lives within the corresponding VD0/VD2/VD4/VD6 forcewake domain and is not accessible if the vdbox in that domain is fused off and the forcewake is not initialized. This mistake went unnoticed because until recently we were using the wrong register offset for the SFC_DONE register; once the register offset was corrected, we started hitting errors like <4> [544.989065] i915 0000:cc:00.0: Uninitialized forcewake domain(s) 0x80 accessed at 0x1ce000 on parts with fused-off vdbox engines. Fixes: e50dbdbf ("drm/i915/tgl: Add SFC instdone to error state") Fixes: 82929a21 ("drm/i915: Correct SFC_DONE register offset") Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210806174130.1058960-1-matthew.d.roper@intel.comReviewed-by: NJosé Roberto de Souza <jose.souza@intel.com>
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- 11 8月, 2021 2 次提交
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由 Ankit Nautiyal 提交于
Add the functions to configure HDMI2.1 pcon for DG2, before DP link training. Signed-off-by: NAnkit Nautiyal <ankit.k.nautiyal@intel.com> Signed-off-by: NMatt Roper <matthew.d.roper@intel.com> Reviewed-by: NJosé Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210805163647.801064-10-matthew.d.roper@intel.com
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由 Ankit Nautiyal 提交于
Till DISPLAY12 the PIPE_MISC bits 5-7 are used to set the Dithering BPC, with valid values of 6, 8, 10 BPC. For ADLP+ these bits are used to set the PORT OUTPUT BPC, with valid values of: 6, 8, 10, 12 BPC, and need to be programmed whether dithering is enabled or not. This patch: -corrects the bits 5-7 for PIPE MISC register for 12 BPC. -renames the bits and mask to have generic names for these bits for dithering bpc and port output bpc. v3: Added a note for MIPI DSI which uses the PIPE_MISC for readout for pipe_bpp. (Uma Shankar) v2: Added 'display' to the subject and fixes tag. (Uma Shankar) Fixes: 756f85cf ("drm/i915/bdw: Broadwell has PIPEMISC") Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> (v1) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: intel-gfx@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v3.13+ Signed-off-by: NAnkit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: NUma Shankar <uma.shankar@intel.com> Signed-off-by: NUma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210811051857.109723-1-ankit.k.nautiyal@intel.com
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- 07 8月, 2021 1 次提交
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由 Matt Roper 提交于
The bspec has been updated with a new revision 0x5 that translates to B1 GT stepping and C0 display stepping. Bspec: 44477 Signed-off-by: NMatt Roper <matthew.d.roper@intel.com> Reviewed-by: NLucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210805163647.801064-2-matthew.d.roper@intel.com
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- 04 8月, 2021 1 次提交
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由 José Roberto de Souza 提交于
Alderlake-P have different values for MBUS DBOX A credits depending if MBUS join is enabled or not. BSpec: 50343 BSpec: 54369 Cc: Matt Atwood <matthew.s.atwood@intel.com> Signed-off-by: NJosé Roberto de Souza <jose.souza@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210708211827.288601-6-jose.souza@intel.com
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- 03 8月, 2021 1 次提交
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由 Imre Deak 提交于
CI test results/further experiments show that the workaround added in commit 573d7ce4 ("drm/i915/adlp: Add workaround to disable CMTG clock gating") can be applied only while DPLL0 is enabled. If it's disabled the TRANS_CMTG_CHICKEN register is not accessible. Accordingly move the WA to DPLL0 HW state sanitization and enabling. This fixes an issue where the WA won't get applied (and a WARN is thrown due to an unexpected value in TRANS_CMTG_CHICKEN) if the driver is loaded without DPLL0 being enabled: booting without BIOS enabling an output with this PLL, or reloading the driver. While at it also add a debug print for the unexpected register value. Cc: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: NImre Deak <imre.deak@intel.com> Reviewed-by: NJosé Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210802190148.2099625-1-imre.deak@intel.com
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- 02 8月, 2021 2 次提交
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由 Matt Roper 提交于
The register offset for SFC_DONE was missing a '0' at the end, causing us to read from a non-existent register address. We only use this register in error state dumps so the mistake hasn't caused any real problems, but fixing it will hopefully make the error state dumps a bit more useful for debugging. Fixes: e50dbdbf ("drm/i915/tgl: Add SFC instdone to error state") Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728233411.2365788-1-matthew.d.roper@intel.comReviewed-by: NMika Kuoppala <mika.kuoppala@linux.intel.com>
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由 Anshuman Gupta 提交于
DG1 and XE_PLD platforms has Audio MMIO/VERBS lies in PG0 power well. Adjusting the power domain accordingly to POWER_DOMAIN_AUDIO_MMIO for audio detection and POWER_DOMAIN_AUDIO_PLAYBACK for audio playback. While doing this it requires to use POWER_DOMAIN_AUDIO_MMIO power domain instead of POWER_DOMAIN_AUDIO in crtc power domain mask and POWER_DOMAIN_AUDIO_PLAYBACK with intel_display_power_{get, put} to enable/disable display audio codec power. It will save the power in use cases when DP/HDMI connectors configured with PIPE_A without any audio playback. v1: Changes since RFC - changed power domain names. [Imre] - Removed TC{3,6}, AUX_USBC{3,6} and TBT from DG1 power well and PW_3 power domains. [Imre] - Fixed the order of powe wells , power domains and its registration. [Imre] v2: - Not allowe DC states when AUDIO_MMIO domain enabled. [Imre] v3: - Squashes the commits of series to avoid build failure. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Uma Shankar <uma.shankar@intel.com> Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: NImre Deak <imre.deak@intel.com> Signed-off-by: NAnshuman Gupta <anshuman.gupta@intel.com> [Fix typo in commit message and in AUDIO_PLAYBACK domain name] Signed-off-by: NImre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210729121858.16897-2-anshuman.gupta@intel.com
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- 31 7月, 2021 25 次提交
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由 Lucas De Marchi 提交于
With all the users removed, finish removing the CNL platform definitions. We will leave the PCI IDs around as those are exposed to userspace. Even if mesa doesn't support CNL anymore, let's avoid build breakages due to changing the headers. Also, due to drm/i915/gt still using IS_CANNONLAKE() let's just redefine it instead of removing. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-26-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Remove registers that are not used anymore due to CNL removal and rename those that are. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-25-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Replace all remaining handling of GRAPHICS_VER {==,>=} 10 with {==,>=} 11. With the removal of CNL, there is no platform with graphics version equals 10. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-24-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The numbers of scalers and sprites depend on the display version, so use it instead of GRAPHICS_VER. We were mixing both, which let me confused while removing CNL and GRAPHICS_VER == 10. v2 (Rodrigo): Switch IS_GEMINILAKE to DISPLAY_VER == 10 v3 (Lucas): Change check to DISPLAY_VER >= 9, to cover the GLK's num_scalers, otherwise it remains set to 0. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-23-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Cleanup remaining cases that we find CNL in the codebase. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-22-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
With the removal of CNL, let's consider ICL as the first platform using those constants. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-21-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Consider the new WOPCM size as starting in ICL rather than CNL since the latter is being removed from the driver. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-20-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Remove references for CNL from pch detection. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-19-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Remove support for CNL as it's highly untested, probably broken, and there is no real platform that requires this code. This is part of CNL removal from i915. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-18-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Remove special handling of PORT_F in i915_irq.c and only do it for DISPLAY_VER == 11. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-17-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
With the removal of CNL, let's consider GLK as the first platform using those constants since GLK has DISPLAY_VER == 10. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-16-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210729162332.1774275-1-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly in intel_display_power.c. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-14-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly in skl_universal_plane.c. Remove code and rename functions/macros accordingly to use ICL prefix. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-13-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Only one reference to CNL that is not needed, but code is the same for DISPLAY_VER >= 11, so leave the code around and just remove the special case for CNL. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-12-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly in intel_ddi.c. A lot of special code for CNL can be removed. There were some __cnl.*() functions that were created to share the implementation between ICL and CNL. Those are now embedded in the only caller, in ICL. Remove code and rename functions/macros accordingly to use ICL prefix for those that are still needed. Verified with: make EXTRA_CFLAGS=-Wunused drivers/gpu/drm/i915/display/intel_dpll_mgr.o Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210729233934.2059489-1-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly in intel_dp.c. Remove code and rename functions/macros accordingly to use ICL prefix. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-10-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Remove DMC firmware for CNL. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-9-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Only one reference to CNL that is not needed, but code is the same for DISPLAY_VER >= 11, so leave the code around and just remove the special case for CNL. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-8-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly in intel_ddi.c. Remove code and rename functions/macros accordingly to use ICL prefix. There's one leftover reference to cnl that comes from the struct intel_ddi_buf_trans. This will be renamed later when we get rid of the additional CNL tables. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-7-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
No need for special CNL handling as there is no real platform with that configuration. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-6-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK, that doesn't have combo phys. We don't need to handle CNL explicitly in intel_combo_phy.c. Remove code and rename functions/macros accordingly to use ICL prefix. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-5-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK, so we don't need any checks and supporting code for CNL. For DISPLAY_VER >= 11, ilk_load_csc_matrix() is not used, so make it handle GLK only. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-4-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
The only real platform with DISPLAY_VER == 10 is GLK, so we don't need any checks and supporting code for CNL. Remove code and rename functions/macros accordingly. Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-3-lucas.demarchi@intel.com
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由 Lucas De Marchi 提交于
Explicit support for CNL is being removed from the driver as it's not expected to work. Remove the workaround for PORT_F from display/intel_bios.c so we can also remove the generic DISPLAY_VER == 10 calls to intel_ddi_init(): the only platform with that display version is already handled separately (GLK). Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-2-lucas.demarchi@intel.com
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- 30 7月, 2021 1 次提交
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由 Khaled Almahallawy 提交于
Source needs to write DPCD 103-106 after receiving a PHY request to change swing/pre-emphasis after reading DPCD 206-207. This is especially needed if there is a retimer between source and sink and the retimer implements AUX_CH interception scheme to manage DP PHY settings (e.g. adjusting Swing/Pre-emphasis equalization level) for DP output channel. If the source doesn't write to DPCD 103-106, the retimer may not output the requested swing/pre-emphasis and eventually we fail compliance. v2: Rebase and use crtc->lane_count (Imre) Signed-off-by: NKhaled Almahallawy <khaled.almahallawy@intel.com> Signed-off-by: NImre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210226081554.984307-1-khaled.almahallawy@intel.comReviewed-by: NImre Deak <imre.deak@intel.com> Signed-off-by: NImre Deak <imre.deak@intel.com>
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