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Subject: media: cadence: csi2rx: Configure DPHY using link freq Author: Pratyush Yadav <p.ya...@ti.com> Date: Mon Oct 9 18:39:32 2023 +0530 Some platforms like TI's J721E can have the CSI2RX paired with an external DPHY. Use the generic PHY framework to configure the DPHY with the correct link frequency. Signed-off-by: Pratyush Yadav <p.ya...@ti.com> Tested-by: Julien Massot <julien.mas...@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkei...@ideasonboard.com> Reviewed-by: Maxime Ripard <mrip...@kernel.org> Co-developed-by: Jai Luthra <j-lut...@ti.com> Signed-off-by: Jai Luthra <j-lut...@ti.com> Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl> drivers/media/platform/cadence/cdns-csi2rx.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) --- diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index f9b41451f4a4..77e2413c345a 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -145,8 +145,32 @@ static void csi2rx_reset(struct csi2rx_priv *csi2rx) static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx) { union phy_configure_opts opts = { }; + struct phy_configure_opts_mipi_dphy *cfg = &opts.mipi_dphy; + struct v4l2_subdev_format sd_fmt = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .pad = CSI2RX_PAD_SINK, + }; + const struct csi2rx_fmt *fmt; + s64 link_freq; int ret; + ret = v4l2_subdev_call_state_active(&csi2rx->subdev, pad, get_fmt, + &sd_fmt); + if (ret < 0) + return ret; + + fmt = csi2rx_get_fmt_by_code(sd_fmt.format.code); + + link_freq = v4l2_get_link_freq(csi2rx->source_subdev->ctrl_handler, + fmt->bpp, 2 * csi2rx->num_lanes); + if (link_freq < 0) + return link_freq; + + ret = phy_mipi_dphy_get_default_config_for_hsclk(link_freq, + csi2rx->num_lanes, cfg); + if (ret) + return ret; + ret = phy_power_on(csi2rx->dphy); if (ret) return ret; _______________________________________________ linuxtv-commits mailing list linuxtv-commits@linuxtv.org https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits