From 1cdd8705c7acad7a49d0546d0f22fcde3ad8dcb9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 12 Aug 2019 10:54:05 -0700
Subject: drm/i915/tgl: Fix missing parentheses on
TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT
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Git-commit: 1cdd8705c7acad7a49d0546d0f22fcde3ad8dcb9
Patch-mainline: v5.4-rc1
References: bsc#1152489
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>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190812175405.14479-1-jose.souza@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
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)
--
2.28.0