[RESEND PATCH v2 1/2] soc: amlogic: add Meson GX VPU Domains driver
Neil Armstrong
narmstrong at baylibre.com
Mon Oct 30 09:47:46 PDT 2017
On 30/10/2017 16:40, Ulf Hansson wrote:
> Hi Neil,
>
> [...]
>
>> +
>> + pm_genpd_init(&vpu_hdmi_pd.genpd, &simple_qos_governor,
>> + meson_gx_pwrc_vpu_get_power(&vpu_hdmi_pd));
>> +
>
> This means that you may initialize the genpd in powered on state.
>
> For that scenario, I think you will hit a clock unprepare/disable
> in-balance issue when genpd calls your ->power_off() callback, simply
> because you didn't call clk_prepare_enable() for the clocks first.
>
> [...]
>
> Kind regards
> Uffe
>
Hi,
I added a "powered" attribute to trace if power-on was done by the driver, but I only protected the shutdown call.... I should indeed protect it in the power_off call instead.
Neil
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