[PATCH 03/16] phy: cdns-dphy: Allow setting mode
From: Pratyush Yadav <hidden>
Date: 2021-03-30 17:35:16
Also in:
dmaengine, linux-devicetree, linux-media, lkml
Subsystem:
generic phy framework, the rest · Maintainers:
Vinod Koul, Linus Torvalds
Allow callers to set the PHY mode. The main mode should always be PHY_MODE_MIPI_DPHY but the submode can either be PHY_MIPI_DPHY_SUBMODE_RX or PHY_MIPI_DPHY_SUBMODE_TX. Update the ops based on the requested submode. Signed-off-by: Pratyush Yadav <redacted> --- drivers/phy/cadence/cdns-dphy.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+)
diff --git a/drivers/phy/cadence/cdns-dphy.c b/drivers/phy/cadence/cdns-dphy.c
index 8656f2102a91..7d5f7b333893 100644
--- a/drivers/phy/cadence/cdns-dphy.c
+++ b/drivers/phy/cadence/cdns-dphy.c@@ -365,11 +365,41 @@ static int cdns_dphy_configure(struct phy *phy, union phy_configure_opts *opts) return 0; } +static int cdns_dphy_set_mode(struct phy *phy, enum phy_mode mode, int submode) +{ + struct cdns_dphy *dphy = phy_get_drvdata(phy); + const struct cdns_dphy_driver_data *ddata; + + ddata = of_device_get_match_data(dphy->dev); + if (!ddata) + return -EINVAL; + + if (mode != PHY_MODE_MIPI_DPHY) + return -EINVAL; + + if (submode == PHY_MIPI_DPHY_SUBMODE_TX) { + if (!ddata->tx) + return -EOPNOTSUPP; + + dphy->ops = ddata->tx; + } else if (submode == PHY_MIPI_DPHY_SUBMODE_RX) { + if (!ddata->rx) + return -EOPNOTSUPP; + + dphy->ops = ddata->rx; + } else { + return -EOPNOTSUPP; + } + + return 0; +} + static const struct phy_ops cdns_dphy_ops = { .configure = cdns_dphy_configure, .validate = cdns_dphy_validate, .power_on = cdns_dphy_power_on, .power_off = cdns_dphy_power_off, + .set_mode = cdns_dphy_set_mode, }; static int cdns_dphy_probe(struct platform_device *pdev)
--
2.30.0
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