54 lines
2.2 KiB
Diff
54 lines
2.2 KiB
Diff
From e7697814c142c99f470c3458d49e41b25a575f23 Mon Sep 17 00:00:00 2001
|
|
From: Daniel Golle <daniel@makrotopia.org>
|
|
Date: Fri, 26 May 2023 10:31:40 +0100
|
|
Subject: [PATCH] cpufreq: mediatek: correct voltages for MT7622 and MT7623
|
|
|
|
The MT6380 regulator typically used together with MT7622 does not
|
|
support the current maximum processor and SRAM voltage in the cpufreq
|
|
driver (1360000uV).
|
|
For MT7622 limit processor and SRAM supply voltages to 1350000uV to
|
|
avoid having the tracking algorithm request unsupported voltages from
|
|
the regulator.
|
|
|
|
On MT7623 there is no separate SRAM supply and the maximum voltage used
|
|
is 1300000uV. Create dedicated platform data for MT7623 to cover that
|
|
case as well.
|
|
|
|
Fixes: 0883426fd07e3 ("cpufreq: mediatek: Raise proc and sram max voltage for MT7622/7623")
|
|
Suggested-by: Jia-wei Chang <Jia-wei.Chang@mediatek.com>
|
|
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
|
|
---
|
|
drivers/cpufreq/mediatek-cpufreq.c | 13 ++++++++++---
|
|
1 file changed, 10 insertions(+), 3 deletions(-)
|
|
|
|
--- a/drivers/cpufreq/mediatek-cpufreq.c
|
|
+++ b/drivers/cpufreq/mediatek-cpufreq.c
|
|
@@ -696,9 +696,16 @@ static const struct mtk_cpufreq_platform
|
|
static const struct mtk_cpufreq_platform_data mt7622_platform_data = {
|
|
.min_volt_shift = 100000,
|
|
.max_volt_shift = 200000,
|
|
- .proc_max_volt = 1360000,
|
|
+ .proc_max_volt = 1350000,
|
|
.sram_min_volt = 0,
|
|
- .sram_max_volt = 1360000,
|
|
+ .sram_max_volt = 1350000,
|
|
+ .ccifreq_supported = false,
|
|
+};
|
|
+
|
|
+static const struct mtk_cpufreq_platform_data mt7623_platform_data = {
|
|
+ .min_volt_shift = 100000,
|
|
+ .max_volt_shift = 200000,
|
|
+ .proc_max_volt = 1300000,
|
|
.ccifreq_supported = false,
|
|
};
|
|
|
|
@@ -743,7 +750,7 @@ static const struct of_device_id mtk_cpu
|
|
{ .compatible = "mediatek,mt2701", .data = &mt2701_platform_data },
|
|
{ .compatible = "mediatek,mt2712", .data = &mt2701_platform_data },
|
|
{ .compatible = "mediatek,mt7622", .data = &mt7622_platform_data },
|
|
- { .compatible = "mediatek,mt7623", .data = &mt7622_platform_data },
|
|
+ { .compatible = "mediatek,mt7623", .data = &mt7623_platform_data },
|
|
{ .compatible = "mediatek,mt7988", .data = &mt7988_platform_data },
|
|
{ .compatible = "mediatek,mt8167", .data = &mt8516_platform_data },
|
|
{ .compatible = "mediatek,mt817x", .data = &mt2701_platform_data },
|