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From 3a81868dcafd1b133fe5136440da80eac463a3b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Moritz=20K=C3=BChner?= <kuehner.moritz@gmail.com>
Date: Sun, 17 Apr 2016 16:15:23 +0200
Subject: [PATCH 1041/1110] drm/amd/powerplay/hwmgr: prevent VDDC from
exceeding 2V
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
If the tonga gpu is controlled by SVID2 tonga_get_evv_voltage will only print
an error if the voltage exceeds 2V although a comment clearly states that it
needs be less than 2V.
v2: added signed of by
Signed-off-by: Moritz Kühner <kuehner.moritz@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index 28f5c65..59dd78c 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -458,8 +458,7 @@ int tonga_get_evv_voltage(struct pp_hwmgr *hwmgr)
"Error retrieving EVV voltage value!", continue);
/* need to make sure vddc is less than 2v or else, it could burn the ASIC. */
- if (vddc > 2000)
- printk(KERN_ERR "[ powerplay ] Invalid VDDC value! \n");
+ PP_ASSERT_WITH_CODE(vddc < 2000, "Invalid VDDC value!", return -1);
/* the voltage should not be zero nor equal to leakage ID */
if (vddc != 0 && vddc != virtual_voltage_id) {
--
2.7.4
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