From: "Ville Syrjälä" <ville.syrjala@linux.intel.com> To: Jani Nikula <jani.nikula@intel.com> Cc: intel-gfx@lists.freedesktop.org Subject: Re: [PATCH] drm/i915/bios: use a flag for vbt hdmi level shift presence Date: Thu, 7 Nov 2019 12:47:51 +0200 [thread overview] Message-ID: <20191107104751.GZ1208@intel.com> (raw) In-Reply-To: <20191107103230.19118-1-jani.nikula@intel.com> On Thu, Nov 07, 2019 at 12:32:30PM +0200, Jani Nikula wrote: > The pre-initialized magic value is a bit silly, switch to a flag > instead. > > v2: Reduce paranoia to a single sanity check (Ville) > > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> > Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> stands > --- > drivers/gpu/drm/i915/display/intel_bios.c | 10 +--------- > drivers/gpu/drm/i915/display/intel_ddi.c | 13 +++++++------ > drivers/gpu/drm/i915/i915_drv.h | 8 ++------ > 3 files changed, 10 insertions(+), 21 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c > index a03f56b7b4ef..c19b234bebe6 100644 > --- a/drivers/gpu/drm/i915/display/intel_bios.c > +++ b/drivers/gpu/drm/i915/display/intel_bios.c > @@ -1509,6 +1509,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, > port_name(port), > hdmi_level_shift); > info->hdmi_level_shift = hdmi_level_shift; > + info->hdmi_level_shift_set = true; > } > > if (bdb_version >= 204) { > @@ -1692,8 +1693,6 @@ parse_general_definitions(struct drm_i915_private *dev_priv, > static void > init_vbt_defaults(struct drm_i915_private *dev_priv) > { > - enum port port; > - > dev_priv->vbt.crt_ddc_pin = GMBUS_PIN_VGADDC; > > /* Default to having backlight */ > @@ -1721,13 +1720,6 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) > dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev_priv, > !HAS_PCH_SPLIT(dev_priv)); > DRM_DEBUG_KMS("Set default to SSC at %d kHz\n", dev_priv->vbt.lvds_ssc_freq); > - > - for_each_port(port) { > - struct ddi_vbt_port_info *info = > - &dev_priv->vbt.ddi_port_info[port]; > - > - info->hdmi_level_shift = HDMI_LEVEL_SHIFT_UNKNOWN; > - } > } > > /* Defaults to initialize only if there is no VBT. */ > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c > index 398c6f054a6e..4018c2e2a6fc 100644 > --- a/drivers/gpu/drm/i915/display/intel_ddi.c > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c > @@ -888,11 +888,10 @@ icl_get_combo_buf_trans(struct drm_i915_private *dev_priv, int type, int rate, > > static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port port) > { > + struct ddi_vbt_port_info *port_info = &dev_priv->vbt.ddi_port_info[port]; > int n_entries, level, default_entry; > enum phy phy = intel_port_to_phy(dev_priv, port); > > - level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; > - > if (INTEL_GEN(dev_priv) >= 12) { > if (intel_phy_is_combo(dev_priv, phy)) > icl_get_combo_buf_trans(dev_priv, INTEL_OUTPUT_HDMI, > @@ -927,12 +926,14 @@ static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port por > return 0; > } > > - /* Choose a good default if VBT is badly populated */ > - if (level == HDMI_LEVEL_SHIFT_UNKNOWN || level >= n_entries) > - level = default_entry; > - > if (WARN_ON_ONCE(n_entries == 0)) > return 0; > + > + if (port_info->hdmi_level_shift_set) > + level = port_info->hdmi_level_shift; > + else > + level = default_entry; > + > if (WARN_ON_ONCE(level >= n_entries)) > level = n_entries - 1; > > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index 7e0f67babe20..67bdfe6de3fa 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -627,13 +627,9 @@ struct ddi_vbt_port_info { > > int max_tmds_clock; > > - /* > - * This is an index in the HDMI/DVI DDI buffer translation table. > - * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't > - * populate this field. > - */ > -#define HDMI_LEVEL_SHIFT_UNKNOWN 0xff > + /* This is an index in the HDMI/DVI DDI buffer translation table. */ > u8 hdmi_level_shift; > + u8 hdmi_level_shift_set:1; > > u8 supports_dvi:1; > u8 supports_hdmi:1; > -- > 2.20.1 -- Ville Syrjälä Intel _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
WARNING: multiple messages have this Message-ID (diff)
From: "Ville Syrjälä" <ville.syrjala@linux.intel.com> To: Jani Nikula <jani.nikula@intel.com> Cc: intel-gfx@lists.freedesktop.org Subject: Re: [Intel-gfx] [PATCH] drm/i915/bios: use a flag for vbt hdmi level shift presence Date: Thu, 7 Nov 2019 12:47:51 +0200 [thread overview] Message-ID: <20191107104751.GZ1208@intel.com> (raw) Message-ID: <20191107104751.utnUyncNoNrRMGuvs5cLFXkIS0MZcjwCcU_3TKPq-eY@z> (raw) In-Reply-To: <20191107103230.19118-1-jani.nikula@intel.com> On Thu, Nov 07, 2019 at 12:32:30PM +0200, Jani Nikula wrote: > The pre-initialized magic value is a bit silly, switch to a flag > instead. > > v2: Reduce paranoia to a single sanity check (Ville) > > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> > Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> stands > --- > drivers/gpu/drm/i915/display/intel_bios.c | 10 +--------- > drivers/gpu/drm/i915/display/intel_ddi.c | 13 +++++++------ > drivers/gpu/drm/i915/i915_drv.h | 8 ++------ > 3 files changed, 10 insertions(+), 21 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c > index a03f56b7b4ef..c19b234bebe6 100644 > --- a/drivers/gpu/drm/i915/display/intel_bios.c > +++ b/drivers/gpu/drm/i915/display/intel_bios.c > @@ -1509,6 +1509,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, > port_name(port), > hdmi_level_shift); > info->hdmi_level_shift = hdmi_level_shift; > + info->hdmi_level_shift_set = true; > } > > if (bdb_version >= 204) { > @@ -1692,8 +1693,6 @@ parse_general_definitions(struct drm_i915_private *dev_priv, > static void > init_vbt_defaults(struct drm_i915_private *dev_priv) > { > - enum port port; > - > dev_priv->vbt.crt_ddc_pin = GMBUS_PIN_VGADDC; > > /* Default to having backlight */ > @@ -1721,13 +1720,6 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) > dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev_priv, > !HAS_PCH_SPLIT(dev_priv)); > DRM_DEBUG_KMS("Set default to SSC at %d kHz\n", dev_priv->vbt.lvds_ssc_freq); > - > - for_each_port(port) { > - struct ddi_vbt_port_info *info = > - &dev_priv->vbt.ddi_port_info[port]; > - > - info->hdmi_level_shift = HDMI_LEVEL_SHIFT_UNKNOWN; > - } > } > > /* Defaults to initialize only if there is no VBT. */ > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c > index 398c6f054a6e..4018c2e2a6fc 100644 > --- a/drivers/gpu/drm/i915/display/intel_ddi.c > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c > @@ -888,11 +888,10 @@ icl_get_combo_buf_trans(struct drm_i915_private *dev_priv, int type, int rate, > > static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port port) > { > + struct ddi_vbt_port_info *port_info = &dev_priv->vbt.ddi_port_info[port]; > int n_entries, level, default_entry; > enum phy phy = intel_port_to_phy(dev_priv, port); > > - level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; > - > if (INTEL_GEN(dev_priv) >= 12) { > if (intel_phy_is_combo(dev_priv, phy)) > icl_get_combo_buf_trans(dev_priv, INTEL_OUTPUT_HDMI, > @@ -927,12 +926,14 @@ static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port por > return 0; > } > > - /* Choose a good default if VBT is badly populated */ > - if (level == HDMI_LEVEL_SHIFT_UNKNOWN || level >= n_entries) > - level = default_entry; > - > if (WARN_ON_ONCE(n_entries == 0)) > return 0; > + > + if (port_info->hdmi_level_shift_set) > + level = port_info->hdmi_level_shift; > + else > + level = default_entry; > + > if (WARN_ON_ONCE(level >= n_entries)) > level = n_entries - 1; > > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index 7e0f67babe20..67bdfe6de3fa 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -627,13 +627,9 @@ struct ddi_vbt_port_info { > > int max_tmds_clock; > > - /* > - * This is an index in the HDMI/DVI DDI buffer translation table. > - * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't > - * populate this field. > - */ > -#define HDMI_LEVEL_SHIFT_UNKNOWN 0xff > + /* This is an index in the HDMI/DVI DDI buffer translation table. */ > u8 hdmi_level_shift; > + u8 hdmi_level_shift_set:1; > > u8 supports_dvi:1; > u8 supports_hdmi:1; > -- > 2.20.1 -- Ville Syrjälä Intel _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2019-11-07 10:47 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-11-07 10:32 [PATCH] drm/i915/bios: use a flag for vbt hdmi level shift presence Jani Nikula 2019-11-07 10:32 ` [Intel-gfx] " Jani Nikula 2019-11-07 10:47 ` Ville Syrjälä [this message] 2019-11-07 10:47 ` Ville Syrjälä 2019-11-07 13:03 ` ✓ Fi.CI.BAT: success for drm/i915/bios: use a flag for vbt hdmi level shift presence (rev2) Patchwork 2019-11-07 13:03 ` [Intel-gfx] " Patchwork 2019-11-08 14:25 ` ✗ Fi.CI.IGT: failure " Patchwork 2019-11-08 14:25 ` [Intel-gfx] " Patchwork 2019-11-12 14:09 ` ✗ Fi.CI.BAT: failure for drm/i915/bios: use a flag for vbt hdmi level shift presence (rev3) Patchwork 2019-11-12 14:09 ` [Intel-gfx] " Patchwork 2019-11-12 20:02 ` ✗ Fi.CI.BAT: failure for drm/i915/bios: use a flag for vbt hdmi level shift presence (rev4) Patchwork 2019-11-12 20:02 ` [Intel-gfx] " Patchwork -- strict thread matches above, loose matches on Subject: below -- 2019-11-05 13:39 [PATCH] drm/i915/bios: use a flag for vbt hdmi level shift presence Jani Nikula 2019-11-05 13:50 ` Ville Syrjälä 2019-11-05 13:59 ` Jani Nikula 2019-11-05 15:21 ` Ville Syrjälä 2019-11-05 15:37 ` Ville Syrjälä
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