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From 4f9790e0119297717e266fef6cd57f116c518f24 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Sat, 4 Mar 2017 20:56:46 -0500
Subject: [PATCH 0320/4131] drm/amd/display: Fix i2c write flag.
I2C_M_RD was translated to write instead of read.
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +-
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 5d45c0f..ca4fa5c 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -422,7 +422,7 @@ bool dm_helpers_submit_i2c(
return false;
for (i = 0; i < num; i++) {
- msgs[i].flags = cmd->payloads[i].write ? I2C_M_RD : 0;
+ msgs[i].flags = cmd->payloads[i].write ? 0 : I2C_M_RD;
msgs[i].addr = cmd->payloads[i].address;
msgs[i].len = cmd->payloads[i].length;
msgs[i].buf = cmd->payloads[i].data;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
index bf38bdd..4fba5ad 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
@@ -2119,7 +2119,7 @@ int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
cmd.speed = 100;
for (i = 0; i < num; i++) {
- cmd.payloads[i].write = (msgs[i].flags & I2C_M_RD);
+ cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD);
cmd.payloads[i].address = msgs[i].addr;
cmd.payloads[i].length = msgs[i].len;
cmd.payloads[i].data = msgs[i].buf;
--
2.7.4
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