This is a note to let you know that I've just added the patch titled
cpufreq: mediatek: correct voltages for MT7622 and MT7623
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-mediatek-correct-voltages-for-mt7622-and-mt7.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d59a194336b295fae2e3afc1547791ca8de1bd1b
Author: Daniel Golle <daniel@xxxxxxxxxxxxxx>
Date: Mon Jun 5 15:18:12 2023 +0100
cpufreq: mediatek: correct voltages for MT7622 and MT7623
[ Upstream commit f85534113f5ae90a52521cdb9e9977a43ee42626 ]
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@xxxxxxxxxxxx>
Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
index 9a39a7ccfae96..fef68cb2b38f7 100644
--- a/drivers/cpufreq/mediatek-cpufreq.c
+++ b/drivers/cpufreq/mediatek-cpufreq.c
@@ -696,9 +696,16 @@ static const struct mtk_cpufreq_platform_data mt2701_platform_data = {
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,
};
@@ -734,7 +741,7 @@ 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 = &mt7622_platform_data },
- { .compatible = "mediatek,mt7623", .data = &mt7622_platform_data },
+ { .compatible = "mediatek,mt7623", .data = &mt7623_platform_data },
{ .compatible = "mediatek,mt8167", .data = &mt8516_platform_data },
{ .compatible = "mediatek,mt817x", .data = &mt2701_platform_data },
{ .compatible = "mediatek,mt8173", .data = &mt2701_platform_data },
