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From: Jani Nikula <jani.nikula@linux.intel.com>
To: "Dan Carpenter" <dan.carpenter@oracle.com>,
	"José Roberto de Souza" <jose.souza@intel.com>
Cc: David Airlie <airlied@linux.ie>,
	intel-gfx@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro
Date: Thu, 15 Aug 2019 09:08:53 +0000	[thread overview]
Message-ID: <87lfvug5i2.fsf@intel.com> (raw)
In-Reply-To: <20190815083336.GE27238@mwanda>

On Thu, 15 Aug 2019, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> This macro doesn't work because the right shift has higher precedence
> than bitwise AND.
>
> Fixes: 9749a5b6c09f ("drm/i915/tgl: Fix the read of the DDI that transcoder is attached to")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Thanks, already fixed by 1cdd8705c7ac ("drm/i915/tgl: Fix missing
parentheses on TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT").

BR,
Jani.

> ---
>  drivers/gpu/drm/i915/i915_reg.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 4a947bd0a294..def6dbdc7e2e 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9433,7 +9433,7 @@ enum skl_power_gate {
>  #define  TRANS_DDI_SELECT_PORT(x)	((x) << TRANS_DDI_PORT_SHIFT)
>  #define  TGL_TRANS_DDI_SELECT_PORT(x)	(((x) + 1) << TGL_TRANS_DDI_PORT_SHIFT)
>  #define  TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val)	 (((val) & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT)
> -#define  TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) (((val) & TGL_TRANS_DDI_PORT_MASK >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
> +#define  TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) ((((val) & TGL_TRANS_DDI_PORT_MASK) >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
>  #define  TRANS_DDI_MODE_SELECT_MASK	(7 << 24)
>  #define  TRANS_DDI_MODE_SELECT_HDMI	(0 << 24)
>  #define  TRANS_DDI_MODE_SELECT_DVI	(1 << 24)

-- 
Jani Nikula, Intel Open Source Graphics Center

WARNING: multiple messages have this Message-ID (diff)
From: Jani Nikula <jani.nikula@linux.intel.com>
To: "Dan Carpenter" <dan.carpenter@oracle.com>,
	"José Roberto de Souza" <jose.souza@intel.com>
Cc: David Airlie <airlied@linux.ie>,
	intel-gfx@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro
Date: Thu, 15 Aug 2019 12:08:53 +0300	[thread overview]
Message-ID: <87lfvug5i2.fsf@intel.com> (raw)
In-Reply-To: <20190815083336.GE27238@mwanda>

On Thu, 15 Aug 2019, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> This macro doesn't work because the right shift has higher precedence
> than bitwise AND.
>
> Fixes: 9749a5b6c09f ("drm/i915/tgl: Fix the read of the DDI that transcoder is attached to")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Thanks, already fixed by 1cdd8705c7ac ("drm/i915/tgl: Fix missing
parentheses on TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT").

BR,
Jani.

> ---
>  drivers/gpu/drm/i915/i915_reg.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 4a947bd0a294..def6dbdc7e2e 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9433,7 +9433,7 @@ enum skl_power_gate {
>  #define  TRANS_DDI_SELECT_PORT(x)	((x) << TRANS_DDI_PORT_SHIFT)
>  #define  TGL_TRANS_DDI_SELECT_PORT(x)	(((x) + 1) << TGL_TRANS_DDI_PORT_SHIFT)
>  #define  TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val)	 (((val) & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT)
> -#define  TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) (((val) & TGL_TRANS_DDI_PORT_MASK >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
> +#define  TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) ((((val) & TGL_TRANS_DDI_PORT_MASK) >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
>  #define  TRANS_DDI_MODE_SELECT_MASK	(7 << 24)
>  #define  TRANS_DDI_MODE_SELECT_HDMI	(0 << 24)
>  #define  TRANS_DDI_MODE_SELECT_DVI	(1 << 24)

-- 
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2019-08-15  9:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-15  8:33 [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro Dan Carpenter
2019-08-15  8:33 ` Dan Carpenter
2019-08-15  9:04 ` ✗ Fi.CI.BAT: failure for " Patchwork
2019-08-15  9:08 ` Jani Nikula [this message]
2019-08-15  9:08   ` [PATCH] " Jani Nikula

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