пт, 18 лип. 2025 р. о 12:11 Mikko Perttunen <mperttu...@nvidia.com> пише:
>
> On Thursday, July 17, 2025 11:21 PM Svyatoslav Ryhel wrote:
> > ...
> > @@ -311,6 +330,43 @@ int tegra_mipi_finish_calibration(struct
> > tegra_mipi_device *device) }
> > EXPORT_SYMBOL(tegra_mipi_finish_calibration);
> >
> > +static int tegra20_mipi_calibration(struct tegra_mipi_device *device)
> > +{
> > + struct tegra_mipi *mipi = device->mipi;
> > + const struct tegra_mipi_soc *soc = mipi->soc;
> > + u32 value;
> > + int err;
> > +
> > + err = clk_enable(mipi->csi_clk);
> > + if (err < 0)
> > + return err;
> > +
> > + mutex_lock(&mipi->lock);
> > +
> > + value = MIPI_CAL_CONFIG_TERMOS(soc->termos);
> > + tegra_mipi_writel(mipi, value, CSI_CILA_MIPI_CAL_CONFIG);
> > +
> > + value = MIPI_CAL_CONFIG_TERMOS(soc->termos);
> > + tegra_mipi_writel(mipi, value, CSI_CILB_MIPI_CAL_CONFIG);
> > +
> > + value = MIPI_CAL_CONFIG_HSPDOS(soc->hspdos) |
> > + MIPI_CAL_CONFIG_HSPUOS(soc->hspuos);
> > + tegra_mipi_writel(mipi, value, CSI_DSI_MIPI_CAL_CONFIG);
> > +
> > + value = MIPI_CAL_BIAS_PAD_DRV_DN_REF(soc->pad_drive_down_ref) |
> > + MIPI_CAL_BIAS_PAD_DRV_UP_REF(soc->pad_drive_up_ref);
> > + tegra_mipi_writel(mipi, value, CSI_MIPIBIAS_PAD_CONFIG);
> > +
> > + tegra_mipi_writel(mipi, 0x0, CSI_CIL_PAD_CONFIG);
> > +
> > + mutex_unlock(&mipi->lock);
> > +
> > + clk_disable(mipi->csi_clk);
> > + clk_disable(mipi->clk);
> > +
> > + return 0;
> > +}
> > +
>
> Where does this sequence come from? It looks a bit strange to me, since it
> doesn't trigger calibration at all. It would be useful to mention the source
> in the commit message.
>
> Mikko
Downstream nvidia sources, 3.1.10 and 3.4, dsi driver, function
tegra_dsi_pad_calibration
>
>
>
