Re: [PATCH v3 14/18] phy: cadence-torrent: add suspend and resume support

Andy Shevchenko
2024-02-15T15:47:06Z

On Thu, Feb 15, 2024 at 04:17:59PM +0100, Thomas Richard wrote:
> Add suspend and resume support.
>
> The already_configured flag is cleared during the suspend stage to force
> the PHY initialization during the resume stage.

> Based on the work of Théo Lebrun <theo.lebrun@bootlin.com>

SoB/Co-developed-by ?

...

> +static int cdns_torrent_phy_suspend_noirq(struct device *dev)
> +{
> + struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(dev);
> + int i;

Why signed?

> + reset_control_assert(cdns_phy->phy_rst);
> + reset_control_assert(cdns_phy->apb_rst);
> + for (i = 0; i < cdns_phy->nsubnodes; i++)
> + reset_control_assert(cdns_phy->phys[i].lnk_rst);
> +
> + if (cdns_phy->already_configured)
> + cdns_phy->already_configured = 0;
> + else
> + clk_disable_unprepare(cdns_phy->clk);
> +
> + return 0;
> +}
> +
> +static int cdns_torrent_phy_resume_noirq(struct device *dev)
> +{
> + struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(dev);
> + int node = cdns_phy->nsubnodes;
> + int ret, i;

Ditto.

> + ret = cdns_torrent_clk(cdns_phy);
> + if (ret)
> + goto clk_cleanup;
> +
> + /* Enable APB */
> + reset_control_deassert(cdns_phy->apb_rst);
> +
> + if (cdns_phy->nsubnodes > 1) {
> + ret = cdns_torrent_phy_configure_multilink(cdns_phy);
> + if (ret)
> + goto put_lnk_rst;
> + }
> +
> + return 0;
> +
> +put_lnk_rst:
> + for (i = 0; i < node; i++)
> + reset_control_assert(cdns_phy->phys[i].lnk_rst);
> + reset_control_assert(cdns_phy->apb_rst);
> + clk_disable_unprepare(cdns_phy->clk);
> +clk_cleanup:
> + cdns_torrent_clk_cleanup(cdns_phy);
> + return ret;
> +}

--
With Best Regards,
Andy Shevchenko