Re: [RFC PATCH v5 6/9] media: tegra: Add Tegra210 Video input driver

Dmitry Osipenko
2020-03-25T00:34:15Z

23.03.2020 20:52, Sowjanya Komatineni пишет:
> +static void tegra_channel_vi_soft_reset(struct tegra_vi_channel *chan)
> +{
> + /* disable clock gating to enable continuous clock */
> + tegra_vi_write(chan, TEGRA_VI_CFG_CG_CTRL, 0);
> + /*
> + * Soft reset memory client interface, pixel format logic, sensor
> + * control logic, and a shadow copy logic to bring VI to clean state.
> + */
> + vi_csi_write(chan, TEGRA_VI_CSI_SW_RESET, 0xf);
> + usleep_range(100, 200);
> + vi_csi_write(chan, TEGRA_VI_CSI_SW_RESET, 0x0);

Is it safe to reset MCCIF without blocking and flushing memory requests
at first?