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    Subject[PATCH V3 08/20] soc/tegra: Add comment over devm_pm_opp_set_clkname()
    Date
    Explain why special handling was required here, it isn't obvious at all.

    Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
    Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
    ---
    drivers/soc/tegra/common.c | 7 +++++++
    1 file changed, 7 insertions(+)

    diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c
    index 32c346b72635..9f3fdeb1a11c 100644
    --- a/drivers/soc/tegra/common.c
    +++ b/drivers/soc/tegra/common.c
    @@ -108,6 +108,13 @@ int devm_tegra_core_dev_init_opp_table(struct device *dev,
    u32 hw_version;
    int err;

    + /*
    + * For some devices we don't have any OPP table in the DT, and in order
    + * to use the same code path for all the devices, we create a dummy OPP
    + * table for them via this call. The dummy OPP table is only capable of
    + * doing clk_set_rate() on invocation of dev_pm_opp_set_rate() and
    + * doesn't provide any other functionality.
    + */
    err = devm_pm_opp_set_clkname(dev, NULL);
    if (err) {
    dev_err(dev, "failed to set OPP clk: %d\n", err);
    --
    2.31.1.272.g89b43f80a514
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