diff mbox series

drm/i915/bios: Fix ports mask

Message ID 20210721220023.268194-1-rodrigo.vivi@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/bios: Fix ports mask | expand

Commit Message

Rodrigo Vivi July 21, 2021, 10 p.m. UTC
PORT_A to PORT_F are regular integers defined in the enum port,
while for_each_port_masked requires a bit mask for the ports.

Current given mask: 0b111
Desired mask: 0b111111

I noticed this while Christoph was reporting a bug found on headless
GVT configuration which bisect blamed commit 3ae04c0c7e63 ("drm/i915/bios:
limit default outputs to ports A through F")

Cc: Christoph Hellwig <hch@infradead.org>
Fixes: 3ae04c0c7e63 ("drm/i915/bios: limit default outputs to ports A through F")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/display/intel_bios.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Souza, Jose July 22, 2021, 5:47 a.m. UTC | #1
On Wed, 2021-07-21 at 18:00 -0400, Rodrigo Vivi wrote:
> PORT_A to PORT_F are regular integers defined in the enum port,
> while for_each_port_masked requires a bit mask for the ports.
> 
> Current given mask: 0b111
> Desired mask: 0b111111
> 
> I noticed this while Christoph was reporting a bug found on headless
> GVT configuration which bisect blamed commit 3ae04c0c7e63 ("drm/i915/bios:
> limit default outputs to ports A through F")
> 

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

> Cc: Christoph Hellwig <hch@infradead.org>
> Fixes: 3ae04c0c7e63 ("drm/i915/bios: limit default outputs to ports A through F")
> Cc: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Jani Nikula <jani.nikula@intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_bios.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
> index 5b6922e28ef2..8bbeb5978bf7 100644
> --- a/drivers/gpu/drm/i915/display/intel_bios.c
> +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> @@ -2166,7 +2166,8 @@ static void
>  init_vbt_missing_defaults(struct drm_i915_private *i915)
>  {
>  	enum port port;
> -	int ports = PORT_A | PORT_B | PORT_C | PORT_D | PORT_E | PORT_F;
> +	int ports = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | \
> +		    BIT(PORT_D) | BIT(PORT_E) | BIT(PORT_F);
>  
>  	if (!HAS_DDI(i915) && !IS_CHERRYVIEW(i915))
>  		return;
Lucas De Marchi July 22, 2021, 6:05 a.m. UTC | #2
On Wed, Jul 21, 2021 at 06:00:23PM -0400, Rodrigo Vivi wrote:
>PORT_A to PORT_F are regular integers defined in the enum port,
>while for_each_port_masked requires a bit mask for the ports.
>
>Current given mask: 0b111
>Desired mask: 0b111111
>
>I noticed this while Christoph was reporting a bug found on headless
>GVT configuration which bisect blamed commit 3ae04c0c7e63 ("drm/i915/bios:
>limit default outputs to ports A through F")
>
>Cc: Christoph Hellwig <hch@infradead.org>
>Fixes: 3ae04c0c7e63 ("drm/i915/bios: limit default outputs to ports A through F")
>Cc: Lucas De Marchi <lucas.demarchi@intel.com>
>Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
>Cc: Jani Nikula <jani.nikula@intel.com>

humn.. something wrong with your git setup (maybe you have --suppress-cc
set?). Because people mentioned here were not actually Cc'ed. Adding
them.

> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>

thanks
Lucas De Marchi


>---
> drivers/gpu/drm/i915/display/intel_bios.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
>index 5b6922e28ef2..8bbeb5978bf7 100644
>--- a/drivers/gpu/drm/i915/display/intel_bios.c
>+++ b/drivers/gpu/drm/i915/display/intel_bios.c
>@@ -2166,7 +2166,8 @@ static void
> init_vbt_missing_defaults(struct drm_i915_private *i915)
> {
> 	enum port port;
>-	int ports = PORT_A | PORT_B | PORT_C | PORT_D | PORT_E | PORT_F;
>+	int ports = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | \
>+		    BIT(PORT_D) | BIT(PORT_E) | BIT(PORT_F);
>
> 	if (!HAS_DDI(i915) && !IS_CHERRYVIEW(i915))
> 		return;
>-- 
>2.31.1
>
>_______________________________________________
>Intel-gfx mailing list
>Intel-gfx@lists.freedesktop.org
>https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Christoph Hellwig July 22, 2021, 7:22 a.m. UTC | #3
> > init_vbt_missing_defaults(struct drm_i915_private *i915)
> > {
> > 	enum port port;
> > -	int ports = PORT_A | PORT_B | PORT_C | PORT_D | PORT_E | PORT_F;
> > +	int ports = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | \
> > +		    BIT(PORT_D) | BIT(PORT_E) | BIT(PORT_F);

No need for the \, this isn't a macro.
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 5b6922e28ef2..8bbeb5978bf7 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2166,7 +2166,8 @@  static void
 init_vbt_missing_defaults(struct drm_i915_private *i915)
 {
 	enum port port;
-	int ports = PORT_A | PORT_B | PORT_C | PORT_D | PORT_E | PORT_F;
+	int ports = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | \
+		    BIT(PORT_D) | BIT(PORT_E) | BIT(PORT_F);
 
 	if (!HAS_DDI(i915) && !IS_CHERRYVIEW(i915))
 		return;