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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2022-06-24 05:58:56 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2022-07-08 11:27:33 +0530 |
| commit | a6db3b92323a0005b8685864be74262729780d5e (patch) | |
| tree | f0086250a4fc03bcd3a5d3d77705e778d9b91786 /drivers/soc/tegra/common.c | |
| parent | d8c32d3971e4c4f9e81c28031c46b755c17192d2 (diff) | |
| download | linux-a6db3b92323a0005b8685864be74262729780d5e.tar.gz | |
soc/tegra: Add comment over devm_pm_opp_set_clkname()
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>
Diffstat (limited to 'drivers/soc/tegra/common.c')
| -rw-r--r-- | drivers/soc/tegra/common.c | 7 |
1 files changed, 7 insertions, 0 deletions
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); |