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authorZhenyu Wang <zhenyuw@linux.intel.com>2016-11-14 10:32:58 +0800
committerZhenyu Wang <zhenyuw@linux.intel.com>2016-11-14 18:06:44 +0800
commitee145f66e77ac89cc8d98550a14b9972daf22925 (patch)
tree1b970773e0f8c068484ae6a9aae340099e447d93 /drivers/gpu/drm/i915
parentf4b0c2860b530e06ddaa5b5df31ab4171ac6e9eb (diff)
downloadlinux-ee145f66e77ac89cc8d98550a14b9972daf22925.tar.bz2
drm/i915/gvt: Fix static checker warning on intel_gvt_i2c_handle_aux_ch_write()
Static checker gave warning on: drivers/gpu/drm/i915/gvt/edid.c:506 intel_gvt_i2c_handle_aux_ch_write() warn: odd binop '0x0 & 0xff' We try to return ACK for I2C reply which is defined with 0. Remove bit shift which caused misleading bit op. Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/gvt/edid.c3
-rw-r--r--drivers/gpu/drm/i915/gvt/edid.h2
2 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c
index 7e1da1c563ca..bda85dff7b2a 100644
--- a/drivers/gpu/drm/i915/gvt/edid.c
+++ b/drivers/gpu/drm/i915/gvt/edid.c
@@ -502,8 +502,7 @@ void intel_gvt_i2c_handle_aux_ch_write(struct intel_vgpu *vgpu,
* ACK of I2C_WRITE
* returned byte if it is READ
*/
-
- aux_data_for_write |= (GVT_AUX_I2C_REPLY_ACK & 0xff) << 24;
+ aux_data_for_write |= GVT_AUX_I2C_REPLY_ACK << 24;
vgpu_vreg(vgpu, offset + 4) = aux_data_for_write;
}
diff --git a/drivers/gpu/drm/i915/gvt/edid.h b/drivers/gpu/drm/i915/gvt/edid.h
index de366b1d5196..f6dfc8b795ec 100644
--- a/drivers/gpu/drm/i915/gvt/edid.h
+++ b/drivers/gpu/drm/i915/gvt/edid.h
@@ -44,7 +44,7 @@
#define GVT_AUX_I2C_READ 0x1
#define GVT_AUX_I2C_STATUS 0x2
#define GVT_AUX_I2C_MOT 0x4
-#define GVT_AUX_I2C_REPLY_ACK (0x0 << 6)
+#define GVT_AUX_I2C_REPLY_ACK 0x0
struct intel_vgpu_edid_data {
bool data_valid;