system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-04 10:26:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

cpufreq: mediatek: Raise proc and sram max voltage for MT7622/7623

Browse source 
During the addition of SRAM voltage tracking for CCI scaling, this
driver got some voltage limits set for the vtrack algorithm: these
were moved to platform data first, then enforced in a later commit
6a17b3876b ("cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking()")
using these as max values for the regulator_set_voltage() calls.

In this case, the vsram/vproc constraints for MT7622 and MT7623
were supposed to be the same as MT2701 (and a number of other SoCs),
but that turned out to be a mistake because the aforementioned two
SoCs' maximum voltage for both VPROC and VPROC_SRAM is 1.36V.

Fix that by adding new platform data for MT7622/7623 declaring the
right {proc,sram}_max_volt parameter.

Fixes: ead858bd12 ("cpufreq: mediatek: Move voltage limits to platform data")
Fixes: 6a17b3876b ("cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking()")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
AngeloGioacchino Del Regno 2023-03-24 18:11:30 +08:00 committed by Viresh Kumar
parent d3296bb4ca
commit 0883426fd0
1 changed files with 11 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
drivers/cpufreq/mediatek-cpufreq.c
View file

@ -693,6 +693,15 @@ static const struct mtk_cpufreq_platform_data mt2701_platform_data = {
.ccifreq_supported = false,
};
static const struct mtk_cpufreq_platform_data mt7622_platform_data = {
.min_volt_shift = 100000,
.max_volt_shift = 200000,
.proc_max_volt = 1360000,
.sram_min_volt = 0,
.sram_max_volt = 1360000,
.ccifreq_supported = false,
};
static const struct mtk_cpufreq_platform_data mt8183_platform_data = {
.min_volt_shift = 100000,
.max_volt_shift = 200000,
@ -724,8 +733,8 @@ static const struct mtk_cpufreq_platform_data mt8516_platform_data = {
static const struct of_device_id mtk_cpufreq_machines[] __initconst = {
{ .compatible = "mediatek,mt2701", .data = &mt2701_platform_data },
{ .compatible = "mediatek,mt2712", .data = &mt2701_platform_data },
{ .compatible = "mediatek,mt7622", .data = &mt2701_platform_data },
{ .compatible = "mediatek,mt7623", .data = &mt2701_platform_data },
{ .compatible = "mediatek,mt7622", .data = &mt7622_platform_data },
{ .compatible = "mediatek,mt7623", .data = &mt7622_platform_data },
{ .compatible = "mediatek,mt8167", .data = &mt8516_platform_data },
{ .compatible = "mediatek,mt817x", .data = &mt2701_platform_data },
{ .compatible = "mediatek,mt8173", .data = &mt2701_platform_data },