diff options
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.c | 331 |
1 files changed, 197 insertions, 134 deletions
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 83216fc7156b..3b9c82b63433 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -2014,136 +2014,6 @@ enum isp_of_phy { ISP_OF_PHY_CSIPHY2, }; -static int isp_fwnode_parse(struct device *dev, - struct v4l2_fwnode_endpoint *vep, - struct v4l2_async_subdev *asd) -{ - struct isp_async_subdev *isd = - container_of(asd, struct isp_async_subdev, asd); - struct isp_bus_cfg *buscfg = &isd->bus; - bool csi1 = false; - unsigned int i; - - dev_dbg(dev, "parsing endpoint %pOF, interface %u\n", - to_of_node(vep->base.local_fwnode), vep->base.port); - - switch (vep->base.port) { - case ISP_OF_PHY_PARALLEL: - buscfg->interface = ISP_INTERFACE_PARALLEL; - buscfg->bus.parallel.data_lane_shift = - vep->bus.parallel.data_shift; - buscfg->bus.parallel.clk_pol = - !!(vep->bus.parallel.flags - & V4L2_MBUS_PCLK_SAMPLE_FALLING); - buscfg->bus.parallel.hs_pol = - !!(vep->bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW); - buscfg->bus.parallel.vs_pol = - !!(vep->bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW); - buscfg->bus.parallel.fld_pol = - !!(vep->bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW); - buscfg->bus.parallel.data_pol = - !!(vep->bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW); - buscfg->bus.parallel.bt656 = vep->bus_type == V4L2_MBUS_BT656; - break; - - case ISP_OF_PHY_CSIPHY1: - case ISP_OF_PHY_CSIPHY2: - switch (vep->bus_type) { - case V4L2_MBUS_CCP2: - case V4L2_MBUS_CSI1: - dev_dbg(dev, "CSI-1/CCP-2 configuration\n"); - csi1 = true; - break; - case V4L2_MBUS_CSI2_DPHY: - dev_dbg(dev, "CSI-2 configuration\n"); - csi1 = false; - break; - default: - dev_err(dev, "unsupported bus type %u\n", - vep->bus_type); - return -EINVAL; - } - - switch (vep->base.port) { - case ISP_OF_PHY_CSIPHY1: - if (csi1) - buscfg->interface = ISP_INTERFACE_CCP2B_PHY1; - else - buscfg->interface = ISP_INTERFACE_CSI2C_PHY1; - break; - case ISP_OF_PHY_CSIPHY2: - if (csi1) - buscfg->interface = ISP_INTERFACE_CCP2B_PHY2; - else - buscfg->interface = ISP_INTERFACE_CSI2A_PHY2; - break; - } - if (csi1) { - buscfg->bus.ccp2.lanecfg.clk.pos = - vep->bus.mipi_csi1.clock_lane; - buscfg->bus.ccp2.lanecfg.clk.pol = - vep->bus.mipi_csi1.lane_polarity[0]; - dev_dbg(dev, "clock lane polarity %u, pos %u\n", - buscfg->bus.ccp2.lanecfg.clk.pol, - buscfg->bus.ccp2.lanecfg.clk.pos); - - buscfg->bus.ccp2.lanecfg.data[0].pos = - vep->bus.mipi_csi1.data_lane; - buscfg->bus.ccp2.lanecfg.data[0].pol = - vep->bus.mipi_csi1.lane_polarity[1]; - - dev_dbg(dev, "data lane polarity %u, pos %u\n", - buscfg->bus.ccp2.lanecfg.data[0].pol, - buscfg->bus.ccp2.lanecfg.data[0].pos); - - buscfg->bus.ccp2.strobe_clk_pol = - vep->bus.mipi_csi1.clock_inv; - buscfg->bus.ccp2.phy_layer = vep->bus.mipi_csi1.strobe; - buscfg->bus.ccp2.ccp2_mode = - vep->bus_type == V4L2_MBUS_CCP2; - buscfg->bus.ccp2.vp_clk_pol = 1; - - buscfg->bus.ccp2.crc = 1; - } else { - buscfg->bus.csi2.lanecfg.clk.pos = - vep->bus.mipi_csi2.clock_lane; - buscfg->bus.csi2.lanecfg.clk.pol = - vep->bus.mipi_csi2.lane_polarities[0]; - dev_dbg(dev, "clock lane polarity %u, pos %u\n", - buscfg->bus.csi2.lanecfg.clk.pol, - buscfg->bus.csi2.lanecfg.clk.pos); - - buscfg->bus.csi2.num_data_lanes = - vep->bus.mipi_csi2.num_data_lanes; - - for (i = 0; i < buscfg->bus.csi2.num_data_lanes; i++) { - buscfg->bus.csi2.lanecfg.data[i].pos = - vep->bus.mipi_csi2.data_lanes[i]; - buscfg->bus.csi2.lanecfg.data[i].pol = - vep->bus.mipi_csi2.lane_polarities[i + 1]; - dev_dbg(dev, - "data lane %u polarity %u, pos %u\n", i, - buscfg->bus.csi2.lanecfg.data[i].pol, - buscfg->bus.csi2.lanecfg.data[i].pos); - } - /* - * FIXME: now we assume the CRC is always there. - * Implement a way to obtain this information from the - * sensor. Frame descriptors, perhaps? - */ - buscfg->bus.csi2.crc = 1; - } - break; - - default: - dev_warn(dev, "%pOF: invalid interface %u\n", - to_of_node(vep->base.local_fwnode), vep->base.port); - return -EINVAL; - } - - return 0; -} - static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async) { struct isp_device *isp = container_of(async, struct isp_device, @@ -2173,6 +2043,201 @@ static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async) return media_device_register(&isp->media_dev); } +static void isp_parse_of_parallel_endpoint(struct device *dev, + struct v4l2_fwnode_endpoint *vep, + struct isp_bus_cfg *buscfg) +{ + buscfg->interface = ISP_INTERFACE_PARALLEL; + buscfg->bus.parallel.data_lane_shift = vep->bus.parallel.data_shift; + buscfg->bus.parallel.clk_pol = + !!(vep->bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING); + buscfg->bus.parallel.hs_pol = + !!(vep->bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW); + buscfg->bus.parallel.vs_pol = + !!(vep->bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW); + buscfg->bus.parallel.fld_pol = + !!(vep->bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW); + buscfg->bus.parallel.data_pol = + !!(vep->bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW); + buscfg->bus.parallel.bt656 = vep->bus_type == V4L2_MBUS_BT656; +} + +static void isp_parse_of_csi2_endpoint(struct device *dev, + struct v4l2_fwnode_endpoint *vep, + struct isp_bus_cfg *buscfg) +{ + unsigned int i; + + buscfg->bus.csi2.lanecfg.clk.pos = vep->bus.mipi_csi2.clock_lane; + buscfg->bus.csi2.lanecfg.clk.pol = + vep->bus.mipi_csi2.lane_polarities[0]; + dev_dbg(dev, "clock lane polarity %u, pos %u\n", + buscfg->bus.csi2.lanecfg.clk.pol, + buscfg->bus.csi2.lanecfg.clk.pos); + + buscfg->bus.csi2.num_data_lanes = vep->bus.mipi_csi2.num_data_lanes; + + for (i = 0; i < buscfg->bus.csi2.num_data_lanes; i++) { + buscfg->bus.csi2.lanecfg.data[i].pos = + vep->bus.mipi_csi2.data_lanes[i]; + buscfg->bus.csi2.lanecfg.data[i].pol = + vep->bus.mipi_csi2.lane_polarities[i + 1]; + dev_dbg(dev, + "data lane %u polarity %u, pos %u\n", i, + buscfg->bus.csi2.lanecfg.data[i].pol, + buscfg->bus.csi2.lanecfg.data[i].pos); + } + /* + * FIXME: now we assume the CRC is always there. Implement a way to + * obtain this information from the sensor. Frame descriptors, perhaps? + */ + buscfg->bus.csi2.crc = 1; +} + +static void isp_parse_of_csi1_endpoint(struct device *dev, + struct v4l2_fwnode_endpoint *vep, + struct isp_bus_cfg *buscfg) +{ + buscfg->bus.ccp2.lanecfg.clk.pos = vep->bus.mipi_csi1.clock_lane; + buscfg->bus.ccp2.lanecfg.clk.pol = vep->bus.mipi_csi1.lane_polarity[0]; + dev_dbg(dev, "clock lane polarity %u, pos %u\n", + buscfg->bus.ccp2.lanecfg.clk.pol, + buscfg->bus.ccp2.lanecfg.clk.pos); + + buscfg->bus.ccp2.lanecfg.data[0].pos = vep->bus.mipi_csi1.data_lane; + buscfg->bus.ccp2.lanecfg.data[0].pol = + vep->bus.mipi_csi1.lane_polarity[1]; + + dev_dbg(dev, "data lane polarity %u, pos %u\n", + buscfg->bus.ccp2.lanecfg.data[0].pol, + buscfg->bus.ccp2.lanecfg.data[0].pos); + + buscfg->bus.ccp2.strobe_clk_pol = vep->bus.mipi_csi1.clock_inv; + buscfg->bus.ccp2.phy_layer = vep->bus.mipi_csi1.strobe; + buscfg->bus.ccp2.ccp2_mode = vep->bus_type == V4L2_MBUS_CCP2; + buscfg->bus.ccp2.vp_clk_pol = 1; + + buscfg->bus.ccp2.crc = 1; +} + +static int isp_alloc_isd(struct isp_async_subdev **isd, + struct isp_bus_cfg **buscfg) +{ + struct isp_async_subdev *__isd; + + __isd = kzalloc(sizeof(*__isd), GFP_KERNEL); + if (!__isd) + return -ENOMEM; + + *isd = __isd; + *buscfg = &__isd->bus; + + return 0; +} + +static struct { + u32 phy; + u32 csi2_if; + u32 csi1_if; +} isp_bus_interfaces[2] = { + { ISP_OF_PHY_CSIPHY1, + ISP_INTERFACE_CSI2C_PHY1, ISP_INTERFACE_CCP2B_PHY1 }, + { ISP_OF_PHY_CSIPHY2, + ISP_INTERFACE_CSI2A_PHY2, ISP_INTERFACE_CCP2B_PHY2 }, +}; + +static int isp_parse_of_endpoints(struct isp_device *isp) +{ + struct fwnode_handle *ep; + struct isp_async_subdev *isd = NULL; + struct isp_bus_cfg *buscfg; + unsigned int i; + + ep = fwnode_graph_get_endpoint_by_id( + dev_fwnode(isp->dev), ISP_OF_PHY_PARALLEL, 0, + FWNODE_GRAPH_ENDPOINT_NEXT); + + if (ep) { + struct v4l2_fwnode_endpoint vep = { + .bus_type = V4L2_MBUS_PARALLEL + }; + int ret; + + dev_dbg(isp->dev, "parsing parallel interface\n"); + + ret = v4l2_fwnode_endpoint_parse(ep, &vep); + + if (!ret) { + ret = isp_alloc_isd(&isd, &buscfg); + if (ret) + return ret; + } + + if (!ret) { + isp_parse_of_parallel_endpoint(isp->dev, &vep, buscfg); + ret = v4l2_async_notifier_add_fwnode_remote_subdev( + &isp->notifier, ep, &isd->asd); + } + + fwnode_handle_put(ep); + if (ret) + kfree(isd); + } + + for (i = 0; i < ARRAY_SIZE(isp_bus_interfaces); i++) { + struct v4l2_fwnode_endpoint vep = { + .bus_type = V4L2_MBUS_CSI2_DPHY + }; + int ret; + + ep = fwnode_graph_get_endpoint_by_id( + dev_fwnode(isp->dev), isp_bus_interfaces[i].phy, 0, + FWNODE_GRAPH_ENDPOINT_NEXT); + + if (!ep) + continue; + + dev_dbg(isp->dev, "parsing serial interface %u, node %pOF\n", i, + to_of_node(ep)); + + ret = isp_alloc_isd(&isd, &buscfg); + if (ret) + return ret; + + ret = v4l2_fwnode_endpoint_parse(ep, &vep); + if (!ret) { + buscfg->interface = isp_bus_interfaces[i].csi2_if; + isp_parse_of_csi2_endpoint(isp->dev, &vep, buscfg); + } else if (ret == -ENXIO) { + vep = (struct v4l2_fwnode_endpoint) + { .bus_type = V4L2_MBUS_CSI1 }; + ret = v4l2_fwnode_endpoint_parse(ep, &vep); + + if (ret == -ENXIO) { + vep = (struct v4l2_fwnode_endpoint) + { .bus_type = V4L2_MBUS_CCP2 }; + ret = v4l2_fwnode_endpoint_parse(ep, &vep); + } + if (!ret) { + buscfg->interface = + isp_bus_interfaces[i].csi1_if; + isp_parse_of_csi1_endpoint(isp->dev, &vep, + buscfg); + } + } + + if (!ret) + ret = v4l2_async_notifier_add_fwnode_remote_subdev( + &isp->notifier, ep, &isd->asd); + + fwnode_handle_put(ep); + if (ret) + kfree(isd); + } + + return 0; +} + static const struct v4l2_async_notifier_operations isp_subdev_notifier_ops = { .complete = isp_subdev_notifier_complete, }; @@ -2223,14 +2288,12 @@ static int isp_probe(struct platform_device *pdev) mutex_init(&isp->isp_mutex); spin_lock_init(&isp->stat_lock); v4l2_async_notifier_init(&isp->notifier); + isp->dev = &pdev->dev; - ret = v4l2_async_notifier_parse_fwnode_endpoints( - &pdev->dev, &isp->notifier, sizeof(struct isp_async_subdev), - isp_fwnode_parse); + ret = isp_parse_of_endpoints(isp); if (ret < 0) goto error; - isp->dev = &pdev->dev; isp->ref_count = 0; ret = dma_coerce_mask_and_coherent(isp->dev, DMA_BIT_MASK(32)); |