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From: "José Roberto de Souza" <jose.souza@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Subject: [PATCH] drm/i915/tgl: Fix missing parentheses on TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT
Date: Mon, 12 Aug 2019 10:54:05 -0700	[thread overview]
Message-ID: <20190812175405.14479-1-jose.souza@intel.com> (raw)

In this case we want to apply the mask and then shift so the
parentheses is needed.

SPANK! SPANK! SPANK! Naughty programmer!

Fixes: 9749a5b6c09f ("drm/i915/tgl: Fix the read of the DDI that transcoder is attached to")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: José Roberto de Souza <jose.souza@intel.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)
-- 
2.22.0

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             reply	other threads:[~2019-08-12 17:54 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-12 17:54 José Roberto de Souza [this message]
2019-08-12 18:13 ` [PATCH] drm/i915/tgl: Fix missing parentheses on TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT Chris Wilson
2019-08-12 18:35 ` ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2019-08-12 18:47 ` [PATCH] " Lucas De Marchi
2019-08-12 18:58 ` ✓ Fi.CI.BAT: success for " Patchwork
2019-08-13  4:45 ` ✗ Fi.CI.IGT: failure " Patchwork
2019-08-13 17:13   ` Souza, Jose

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