Commit be634345 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Yingbao Jia
Browse files

platform/x86: ISST: Allow level 0 to be not present 

mainline inclusion
from mainline-v6.7-rc1
commit a22d36eb5b150913325640cb793e13e08d1bd715
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8WOEO

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a22d36eb5b150913325640cb793e13e08d1bd715



-------------------------------------

It is possible that SST level 0 or base level is not present in some
configurations. So don't set level 0 mask in level_en_mask by default.

Intel-SIG: commit a22d36eb5b15 platform/x86: ISST: Allow level 0 to be not present.
Backport Intel speed select ISST driver support on TPMI.

Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231003163234.1856669-3-srinivas.pandruvada@linux.intel.com


Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
[ Yingbao Jia: amend commit log ]
Signed-off-by: default avatarYingbao Jia <yingbao.jia@intel.com>
parent 9a251ada

drivers/platform/x86/intel_speed_select_if/isst_tpmi_core.c

+0 −3
Original line number Diff line number Diff line
@@ -364,9 +364,6 @@ static int sst_main(struct auxiliary_device *auxdev, struct tpmi_per_power_domai 
	/* Read PP header */

	*((u64 *)&pd_info->pp_header) = readq(pd_info->sst_base + pd_info->sst_header.pp_offset);



	/* Force level_en_mask level 0 */

	pd_info->pp_header.level_en_mask |= 0x01;



	mask = 0x01;

	levels = 0;

	for (i = 0; i < 8; ++i) {