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From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Jani Nikula" <jani.nikula@linux.intel.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,
	Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro
Date: Thu, 15 Aug 2019 08:33:36 +0000	[thread overview]
Message-ID: <20190815083336.GE27238@mwanda> (raw)

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>
---
 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)
-- 
2.20.1

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Jani Nikula" <jani.nikula@linux.intel.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,
	Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro
Date: Thu, 15 Aug 2019 11:33:36 +0300	[thread overview]
Message-ID: <20190815083336.GE27238@mwanda> (raw)

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>
---
 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)
-- 
2.20.1

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             reply	other threads:[~2019-08-15  8:33 UTC|newest]

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

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