• Douglas Anderson's avatar
    arm64: dts: qcom: sc7280: Clean up sdc1 / sdc2 pinctrl · f9800dde
    Douglas Anderson authored
    This patch makes a few improvements to the way that sdc1 / sdc2
    pinctrl is specified on sc7280:
    
    1. There's no reason to "group" the sdc pins into one overarching node
    and there's a downside: we have to replicate the hierarchy in the
    board device tree files. Let's clean this up.
    
    2. There's really not a lot of reason not to list the "pinctrl" for
    sdc1 (eMMC) in the SoC dtsi file. These aren't GPIO pins and
    everyone's going to specify the same pins.
    
    3. Even though it's likely that boards will need to override pinctrl
    for sdc2 (SD card) to add the card detect GPIO, we can be symmetric
    and add it to the SoC dsti file.
    
    4. Let's get rid of the word "on" from the normal config and add a
    "sleep" suffix to the sleep config. This looks cleaner to me.
    
    This is intended to be a no-op change but it could plausibly change
    behavior depending on how the pinctrl code parses things. One thing to
    note is that "SD card detect" is explicitly listed now as keeping its
    pull enabled in sleep since we still want to detect card insertions
    even if the controller is suspended (because no card is inserted). The
    pinctrl framework likely did this anyway, but it's nice to see it
    explicit.
    Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
    Reviewed-by: default avatarStephen Boyd <swboyd@chromium.org>
    Reviewed-by: default avatarMatthias Kaehlcke <mka@chromium.org>
    Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
    Link: https://lore.kernel.org/r/20220202132301.v3.4.I79baad7f52351aafb470f8b21a9fa79d7031ad6a@changeid
    f9800dde
sc7280-herobrine-herobrine-r0.dts 26.1 KB