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drm/amd/powerplay/hwmgr: prevent VDDC from exceeding 2V 

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>
This commit is contained in:
Moritz Kühner 2016-04-17 16:15:23 +02:00 committed by Alex Deucher
parent 74c97375e5
commit c790f87318
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
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@ -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) {