target/linux/mediatek/patches-5.15/351-cpufreq-mediatek-don-t-request-unsupported-voltage.patch

   1 From 20aad28ba5d62f1618408c264384d0b2ad7417db Mon Sep 17 00:00:00 2001
   2 From: Daniel Golle <daniel@makrotopia.org>
   3 Date: Mon, 22 May 2023 23:25:48 +0100
   4 Subject: [PATCH] cpufreq: mediatek: don't request unsupported voltage
   5
   6 PMICs on MT7622 and MT7623 boards only support up to 1350000uV despite
   7 the SoC's processor and SRAM voltage can be up to 1360000uV. As a
   8 work-around specify max. processor and SRAM voltage as 1350000uV to
   9 avoid requesting an unsupported voltage from the regulator.
  10
  11 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  12 ---
  13  drivers/cpufreq/mediatek-cpufreq.c | 4 ++--
  14  1 file changed, 2 insertions(+), 2 deletions(-)
  15
  16 --- a/drivers/cpufreq/mediatek-cpufreq.c
  17 +++ b/drivers/cpufreq/mediatek-cpufreq.c
  18 @@ -696,9 +696,9 @@ static const struct mtk_cpufreq_platform
  19  static const struct mtk_cpufreq_platform_data mt7622_platform_data = {
  20         .min_volt_shift = 100000,
  21         .max_volt_shift = 200000,
  22 -       .proc_max_volt = 1360000,
  23 +       .proc_max_volt = 1350000,
  24         .sram_min_volt = 0,
  25 -       .sram_max_volt = 1360000,
  26 +       .sram_max_volt = 1350000,
  27         .ccifreq_supported = false,
  28  };
  29