drm/amd/powerplay/hwmgr: prevent VDDC from exceeding 2V (c790f873) · Commits · 戴 / test

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

+1 −2

Original line number	Diff line number	Diff line
		@@ -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) {

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