Attention is currently required from: David Wu, Dinesh Gehlot, Eran Mitrani, Jakub Czapiga, Kapil Porwal, Paul Menzel, Tarun.

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2 comments:

• Commit Message:

  • Patch Set #5, Line 8:

    Please start by mentioning that the touchscreen does not work.

    No, the touchscreen can work. But the default setting of SOC_TCHSCR_RST is native function 1. Set SOC_TCHSCR_RST to output low to prevent it pull high unexpectedly.

  • Patch Set #5, Line 10: Set SOC_TCHSCR_RST to output low in bootblock.

    Why in bootblock? So, the delay can be reduced?

    It's related to CB:79571. The reason of set EN_TCHSCR_PWR to output high in bootblock is because the delay time between EN_TCHSCR_PWR high --> SOC_TCHSCR_RST high is too short to meet spec. To extend the delay time, set EN_TCHSCR_PWR to output high from romstage_gpio_table to early_gpio_table.

    Set SOC_TCHSCR_RST to output low in early_gpio_table is because the default setting of SOC_TCHSCR_RST is native function 1. To prevent it pull high unexpectedly, set it to output low in early_gpio_table.

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