From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> To: Pratyush Yadav <p.yadav@ti.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>, Rob Herring <robh+dt@kernel.org>, Kishon Vijay Abraham I <kishon@ti.com>, Vinod Koul <vkoul@kernel.org>, Peter Ujfalusi <peter.ujfalusi@gmail.com>, Maxime Ripard <mripard@kernel.org>, Benoit Parrot <bparrot@ti.com>, Hans Verkuil <hverkuil-cisco@xs4all.nl>, Alexandre Courbot <acourbot@chromium.org>, Stanimir Varbanov <stanimir.varbanov@linaro.org>, Helen Koike <helen.koike@collabora.com>, Michael Tretter <m.tretter@pengutronix.de>, Peter Chen <peter.chen@nxp.com>, Chunfeng Yun <chunfeng.yun@mediatek.com>, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, dmaengine@vger.kernel.org, Vignesh Raghavendra <vigneshr@ti.com>, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Subject: Re: [PATCH 03/16] phy: cdns-dphy: Allow setting mode Date: Fri, 2 Apr 2021 13:38:13 +0300 [thread overview] Message-ID: <YGb0FSW5KRICftiK@pendragon.ideasonboard.com> (raw) In-Reply-To: <20210330173348.30135-4-p.yadav@ti.com> Hi Pratyush, Thank you for the patch. On Tue, Mar 30, 2021 at 11:03:35PM +0530, Pratyush Yadav wrote: > 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. Isn't a given DPHY instance always meant to work in one particular mode ? I can't really imagine a single instance of this IP core being integrated in a way that it can be used in either RX or TX mode. It seems better to select the mode through DT, by describing if the DPHY is an RX or TX (possibly through different compatible strings). > Signed-off-by: Pratyush Yadav <p.yadav@ti.com> > --- > 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) -- Regards, Laurent Pinchart
WARNING: multiple messages have this Message-ID (diff)
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> To: Pratyush Yadav <p.yadav@ti.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>, Rob Herring <robh+dt@kernel.org>, Kishon Vijay Abraham I <kishon@ti.com>, Vinod Koul <vkoul@kernel.org>, Peter Ujfalusi <peter.ujfalusi@gmail.com>, Maxime Ripard <mripard@kernel.org>, Benoit Parrot <bparrot@ti.com>, Hans Verkuil <hverkuil-cisco@xs4all.nl>, Alexandre Courbot <acourbot@chromium.org>, Stanimir Varbanov <stanimir.varbanov@linaro.org>, Helen Koike <helen.koike@collabora.com>, Michael Tretter <m.tretter@pengutronix.de>, Peter Chen <peter.chen@nxp.com>, Chunfeng Yun <chunfeng.yun@mediatek.com>, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, dmaengine@vger.kernel.org, Vignesh Raghavendra <vigneshr@ti.com>, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Subject: Re: [PATCH 03/16] phy: cdns-dphy: Allow setting mode Date: Fri, 2 Apr 2021 13:38:13 +0300 [thread overview] Message-ID: <YGb0FSW5KRICftiK@pendragon.ideasonboard.com> (raw) In-Reply-To: <20210330173348.30135-4-p.yadav@ti.com> Hi Pratyush, Thank you for the patch. On Tue, Mar 30, 2021 at 11:03:35PM +0530, Pratyush Yadav wrote: > 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. Isn't a given DPHY instance always meant to work in one particular mode ? I can't really imagine a single instance of this IP core being integrated in a way that it can be used in either RX or TX mode. It seems better to select the mode through DT, by describing if the DPHY is an RX or TX (possibly through different compatible strings). > Signed-off-by: Pratyush Yadav <p.yadav@ti.com> > --- > 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) -- Regards, Laurent Pinchart -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy
next prev parent reply other threads:[~2021-04-02 10:39 UTC|newest] Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-30 17:33 [PATCH 00/16] CSI2RX support on J721E Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 01/16] phy: Distinguish between Rx and Tx for MIPI D-PHY with submodes Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 02/16] phy: cdns-dphy: Prepare for Rx support Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 03/16] phy: cdns-dphy: Allow setting mode Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-04-02 10:38 ` Laurent Pinchart [this message] 2021-04-02 10:38 ` Laurent Pinchart 2021-04-06 18:22 ` Pratyush Yadav 2021-04-06 18:22 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 04/16] phy: cdns-dphy: Add Rx support Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 05/16] media: cadence: csi2rx: Add external DPHY support Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-31 9:24 ` Chunfeng Yun 2021-03-31 9:24 ` Chunfeng Yun 2021-04-06 18:54 ` Pratyush Yadav 2021-04-06 18:54 ` Pratyush Yadav 2021-04-08 8:13 ` Chunfeng Yun 2021-04-08 8:13 ` Chunfeng Yun 2021-04-08 8:22 ` Tomi Valkeinen 2021-04-08 8:22 ` Tomi Valkeinen 2021-03-30 17:33 ` [PATCH 06/16] media: cadence: csi2rx: Soft reset the streams before starting capture Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 07/16] media: cadence: csi2rx: Set the STOP bit when stopping a stream Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 08/16] media: cadence: csi2rx: Fix stream data configuration Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 09/16] media: cadence: csi2rx: Turn subdev power on before starting stream Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-04-02 10:55 ` Laurent Pinchart 2021-04-02 10:55 ` Laurent Pinchart 2021-04-06 17:53 ` Pratyush Yadav 2021-04-06 17:53 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 10/16] media: cadence: csi2rx: Add wrappers for subdev calls Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-04-02 10:47 ` Laurent Pinchart 2021-04-02 10:47 ` Laurent Pinchart 2021-04-06 15:11 ` Pratyush Yadav 2021-04-06 15:11 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 11/16] dmaengine: ti: k3-psil-j721e: Add entry for CSI2RX Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-04-04 13:24 ` Péter Ujfalusi 2021-04-04 13:24 ` Péter Ujfalusi 2021-04-06 15:09 ` Pratyush Yadav 2021-04-06 15:09 ` Pratyush Yadav 2021-04-06 15:33 ` Péter Ujfalusi 2021-04-06 15:33 ` Péter Ujfalusi 2021-04-06 16:55 ` Pratyush Yadav 2021-04-06 16:55 ` Pratyush Yadav 2021-04-06 17:10 ` Pratyush Yadav 2021-04-06 17:10 ` Pratyush Yadav 2021-04-06 19:13 ` Péter Ujfalusi 2021-04-06 19:13 ` Péter Ujfalusi 2021-03-30 17:33 ` [PATCH 12/16] dt-bindings: media: Add DT bindings for TI CSI2RX driver Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-31 13:40 ` Rob Herring 2021-03-31 13:40 ` Rob Herring 2021-04-01 15:52 ` Rob Herring 2021-04-01 15:52 ` Rob Herring 2021-04-02 10:01 ` Laurent Pinchart 2021-04-02 10:01 ` Laurent Pinchart 2021-04-02 10:53 ` Laurent Pinchart 2021-04-02 10:53 ` Laurent Pinchart 2021-04-06 18:15 ` Pratyush Yadav 2021-04-06 18:15 ` Pratyush Yadav 2021-04-06 18:13 ` Pratyush Yadav 2021-04-06 18:13 ` Pratyush Yadav 2021-04-06 18:00 ` Pratyush Yadav 2021-04-06 18:00 ` Pratyush Yadav 2021-04-01 15:52 ` Rob Herring 2021-04-01 15:52 ` Rob Herring 2021-03-30 17:33 ` [PATCH 13/16] media: ti-vpe: csi2rx: Add CSI2RX support Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-03-31 6:06 ` Tomi Valkeinen 2021-03-31 6:06 ` Tomi Valkeinen 2021-03-31 15:44 ` Benoit Parrot 2021-03-31 15:44 ` Benoit Parrot 2021-03-31 15:50 ` Laurent Pinchart 2021-03-31 15:50 ` Laurent Pinchart 2021-04-06 15:05 ` Pratyush Yadav 2021-04-06 15:05 ` Pratyush Yadav 2021-04-04 13:38 ` Péter Ujfalusi 2021-04-04 13:38 ` Péter Ujfalusi 2021-03-30 17:33 ` [PATCH 14/16] dt-bindings: phy: Convert Cadence DPHY binding to YAML Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-04-02 10:23 ` Laurent Pinchart 2021-04-02 10:23 ` Laurent Pinchart 2021-04-06 18:51 ` Pratyush Yadav 2021-04-06 18:51 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 15/16] dt-bindings: phy: cdns,dphy: make clocks optional Pratyush Yadav 2021-03-30 17:33 ` Pratyush Yadav 2021-04-02 10:31 ` Laurent Pinchart 2021-04-02 10:31 ` Laurent Pinchart 2021-04-06 18:48 ` Pratyush Yadav 2021-04-06 18:48 ` Pratyush Yadav 2021-03-30 17:33 ` [PATCH 16/16] dt-bindings: phy: cdns,dphy: add power-domains property Pratyush Yadav 2021-03-30 17:33 ` [PATCH 16/16] dt-bindings: phy: cdns, dphy: " Pratyush Yadav 2021-04-02 10:35 ` [PATCH 16/16] dt-bindings: phy: cdns,dphy: " Laurent Pinchart 2021-04-02 10:35 ` Laurent Pinchart 2021-04-06 18:23 ` Pratyush Yadav 2021-04-06 18:23 ` Pratyush Yadav 2021-03-31 9:33 ` [PATCH 00/16] CSI2RX support on J721E Vinod Koul 2021-03-31 9:33 ` Vinod Koul 2021-03-31 11:40 ` Pratyush Yadav 2021-03-31 11:40 ` Pratyush Yadav 2021-03-31 13:06 ` Vinod Koul 2021-03-31 13:06 ` Vinod Koul 2021-03-31 13:51 ` Pratyush Yadav 2021-03-31 13:51 ` Pratyush Yadav 2021-04-02 10:57 ` Laurent Pinchart 2021-04-02 10:57 ` Laurent Pinchart
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