diff options
Diffstat (limited to 'target/linux/mediatek/patches-5.15/350-20-cpufreq-mediatek-Raise-proc-and-sram-max-voltage-for.patch')
| -rw-r--r-- | target/linux/mediatek/patches-5.15/350-20-cpufreq-mediatek-Raise-proc-and-sram-max-voltage-for.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-5.15/350-20-cpufreq-mediatek-Raise-proc-and-sram-max-voltage-for.patch b/target/linux/mediatek/patches-5.15/350-20-cpufreq-mediatek-Raise-proc-and-sram-max-voltage-for.patch new file mode 100644 index 0000000000..2de8eb6394 --- /dev/null +++ b/target/linux/mediatek/patches-5.15/350-20-cpufreq-mediatek-Raise-proc-and-sram-max-voltage-for.patch @@ -0,0 +1,58 @@ +From fe6ef09358dc0cfead9d383a8676fbe7a40fcef7 Mon Sep 17 00:00:00 2001 +From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> +Date: Fri, 24 Mar 2023 18:11:30 +0800 +Subject: [PATCH 20/21] cpufreq: mediatek: Raise proc and sram max voltage for + MT7622/7623 + +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 +6a17b3876bc8 ("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: ead858bd128d ("cpufreq: mediatek: Move voltage limits to platform data") +Fixes: 6a17b3876bc8 ("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> +--- + drivers/cpufreq/mediatek-cpufreq.c | 13 +++++++++++-- + 1 file changed, 11 insertions(+), 2 deletions(-) + +--- a/drivers/cpufreq/mediatek-cpufreq.c ++++ b/drivers/cpufreq/mediatek-cpufreq.c +@@ -693,6 +693,15 @@ static const struct mtk_cpufreq_platform + .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 + 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 }, |