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| author | José Roberto de Souza <jose.souza@intel.com> | 2020-05-20 14:27:56 -0700 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2020-06-04 19:36:48 -0700 |
| commit | 2d3879950f8ac1eb5638958a01ff0abeba5427d9 (patch) | |
| tree | efa3ab31f8eab18eaba3b57d7406ab10f4d1f68e /drivers/gpu/drm/i915/i915_params.c | |
| parent | 24d2fc3d530e779c0a7a3dc00d58746cba93e5c8 (diff) | |
| download | linux-2d3879950f8ac1eb5638958a01ff0abeba5427d9.tar.gz linux-2d3879950f8ac1eb5638958a01ff0abeba5427d9.tar.bz2 linux-2d3879950f8ac1eb5638958a01ff0abeba5427d9.zip | |
drm/i915: Add psr_safest_params
This parameter is meant to be used when PSR issues are found as some
issues in the past was due wrong values set in VBT so this would be
a quick and easy way to ask users or for us to check if the issue is
due VBT values.
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200520212756.354623-1-jose.souza@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index fd3b14caf4ce..a7b61e6ec508 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -97,6 +97,11 @@ i915_param_named_unsafe(enable_psr, int, 0400, "(0=disabled, 1=enabled) " "Default: -1 (use per-chip default)"); +i915_param_named(psr_safest_params, bool, 0400, + "Replace PSR VBT parameters by the safest and not optimal ones. This " + "is helpfull to detect if PSR issues are related to bad values set in " + " VBT. (0=use VBT paramters, 1=use safest parameters)"); + i915_param_named_unsafe(force_probe, charp, 0400, "Force probe the driver for specified devices. " "See CONFIG_DRM_I915_FORCE_PROBE for details."); |