diff options
Diffstat (limited to 'drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c')
| -rw-r--r-- | drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 79 |
1 files changed, 58 insertions, 21 deletions
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c index d20f4eff93a4..881e910dce02 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c @@ -108,6 +108,7 @@ struct rzg2l_csi2 { struct reset_control *presetn; struct reset_control *cmn_rstb; struct clk *sysclk; + struct clk *vclk; unsigned long vclk_rate; struct v4l2_subdev subdev; @@ -182,12 +183,15 @@ static const struct rzg2l_csi2_timings rzg2l_csi2_global_timings[] = { struct rzg2l_csi2_format { u32 code; - unsigned int datatype; unsigned int bpp; }; static const struct rzg2l_csi2_format rzg2l_csi2_formats[] = { - { .code = MEDIA_BUS_FMT_UYVY8_1X16, .datatype = 0x1e, .bpp = 16 }, + { .code = MEDIA_BUS_FMT_UYVY8_1X16, .bpp = 16 }, + { .code = MEDIA_BUS_FMT_SBGGR8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SGBRG8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SGRBG8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SRGGB8_1X8, .bpp = 8, }, }; static inline struct rzg2l_csi2 *sd_to_csi2(struct v4l2_subdev *sd) @@ -361,7 +365,7 @@ static int rzg2l_csi2_dphy_setting(struct v4l2_subdev *sd, bool on) return rzg2l_csi2_dphy_disable(csi2); } -static void rzg2l_csi2_mipi_link_enable(struct rzg2l_csi2 *csi2) +static int rzg2l_csi2_mipi_link_enable(struct rzg2l_csi2 *csi2) { unsigned long vclk_rate = csi2->vclk_rate / HZ_PER_MHZ; u32 frrskw, frrclk, frrskw_coeff, frrclk_coeff; @@ -386,11 +390,15 @@ static void rzg2l_csi2_mipi_link_enable(struct rzg2l_csi2 *csi2) rzg2l_csi2_write(csi2, CSI2nDTEL, 0xf778ff0f); rzg2l_csi2_write(csi2, CSI2nDTEH, 0x00ffff1f); + clk_disable_unprepare(csi2->vclk); + /* Enable LINK reception */ rzg2l_csi2_write(csi2, CSI2nMCT3, CSI2nMCT3_RXEN); + + return clk_prepare_enable(csi2->vclk); } -static void rzg2l_csi2_mipi_link_disable(struct rzg2l_csi2 *csi2) +static int rzg2l_csi2_mipi_link_disable(struct rzg2l_csi2 *csi2) { unsigned int timeout = VSRSTS_RETRIES; @@ -409,18 +417,21 @@ static void rzg2l_csi2_mipi_link_disable(struct rzg2l_csi2 *csi2) if (!timeout) dev_err(csi2->dev, "Clearing CSI2nRTST.VSRSTS timed out\n"); + + return 0; } static int rzg2l_csi2_mipi_link_setting(struct v4l2_subdev *sd, bool on) { struct rzg2l_csi2 *csi2 = sd_to_csi2(sd); + int ret; if (on) - rzg2l_csi2_mipi_link_enable(csi2); + ret = rzg2l_csi2_mipi_link_enable(csi2); else - rzg2l_csi2_mipi_link_disable(csi2); + ret = rzg2l_csi2_mipi_link_disable(csi2); - return 0; + return ret; } static int rzg2l_csi2_s_stream(struct v4l2_subdev *sd, int enable) @@ -566,6 +577,9 @@ static int rzg2l_csi2_enum_frame_size(struct v4l2_subdev *sd, if (fse->index != 0) return -EINVAL; + if (!rzg2l_csi2_code_to_fmt(fse->code)) + return -EINVAL; + fse->min_width = RZG2L_CSI2_MIN_WIDTH; fse->min_height = RZG2L_CSI2_MIN_HEIGHT; fse->max_width = RZG2L_CSI2_MAX_WIDTH; @@ -574,6 +588,25 @@ static int rzg2l_csi2_enum_frame_size(struct v4l2_subdev *sd, return 0; } +static int rzg2l_csi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct rzg2l_csi2 *csi2 = sd_to_csi2(sd); + struct media_pad *remote_pad; + + if (!csi2->remote_source) + return -ENODEV; + + remote_pad = media_pad_remote_pad_unique(&csi2->pads[RZG2L_CSI2_SINK]); + if (IS_ERR(remote_pad)) { + dev_err(csi2->dev, "can't get source pad of %s (%ld)\n", + csi2->remote_source->name, PTR_ERR(remote_pad)); + return PTR_ERR(remote_pad); + } + return v4l2_subdev_call(csi2->remote_source, pad, get_frame_desc, + remote_pad->index, fd); +} + static const struct v4l2_subdev_video_ops rzg2l_csi2_video_ops = { .s_stream = rzg2l_csi2_s_stream, .pre_streamon = rzg2l_csi2_pre_streamon, @@ -585,6 +618,7 @@ static const struct v4l2_subdev_pad_ops rzg2l_csi2_pad_ops = { .enum_frame_size = rzg2l_csi2_enum_frame_size, .set_fmt = rzg2l_csi2_set_format, .get_fmt = v4l2_subdev_get_fmt, + .get_frame_desc = rzg2l_csi2_get_frame_desc, }; static const struct v4l2_subdev_ops rzg2l_csi2_subdev_ops = { @@ -731,7 +765,6 @@ static const struct media_entity_operations rzg2l_csi2_entity_ops = { static int rzg2l_csi2_probe(struct platform_device *pdev) { struct rzg2l_csi2 *csi2; - struct clk *vclk; int ret; csi2 = devm_kzalloc(&pdev->dev, sizeof(*csi2), GFP_KERNEL); @@ -757,12 +790,11 @@ static int rzg2l_csi2_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(csi2->sysclk), "Failed to get system clk\n"); - vclk = clk_get(&pdev->dev, "video"); - if (IS_ERR(vclk)) - return dev_err_probe(&pdev->dev, PTR_ERR(vclk), + csi2->vclk = devm_clk_get(&pdev->dev, "video"); + if (IS_ERR(csi2->vclk)) + return dev_err_probe(&pdev->dev, PTR_ERR(csi2->vclk), "Failed to get video clock\n"); - csi2->vclk_rate = clk_get_rate(vclk); - clk_put(vclk); + csi2->vclk_rate = clk_get_rate(csi2->vclk); csi2->dev = &pdev->dev; @@ -789,14 +821,17 @@ static int rzg2l_csi2_probe(struct platform_device *pdev) csi2->subdev.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE; csi2->subdev.entity.ops = &rzg2l_csi2_entity_ops; - csi2->pads[RZG2L_CSI2_SINK].flags = MEDIA_PAD_FL_SINK; + csi2->pads[RZG2L_CSI2_SINK].flags = MEDIA_PAD_FL_SINK | + MEDIA_PAD_FL_MUST_CONNECT; /* * TODO: RZ/G2L CSI2 supports 4 virtual channels, as virtual * channels should be implemented by streams API which is under * development lets hardcode to VC0 for now. */ - csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE; - ret = media_entity_pads_init(&csi2->subdev.entity, 2, csi2->pads); + csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE | + MEDIA_PAD_FL_MUST_CONNECT; + ret = media_entity_pads_init(&csi2->subdev.entity, ARRAY_SIZE(csi2->pads), + csi2->pads); if (ret) goto error_pm; @@ -834,7 +869,7 @@ static void rzg2l_csi2_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); } -static int __maybe_unused rzg2l_csi2_pm_runtime_suspend(struct device *dev) +static int rzg2l_csi2_pm_runtime_suspend(struct device *dev) { struct rzg2l_csi2 *csi2 = dev_get_drvdata(dev); @@ -843,7 +878,7 @@ static int __maybe_unused rzg2l_csi2_pm_runtime_suspend(struct device *dev) return 0; } -static int __maybe_unused rzg2l_csi2_pm_runtime_resume(struct device *dev) +static int rzg2l_csi2_pm_runtime_resume(struct device *dev) { struct rzg2l_csi2 *csi2 = dev_get_drvdata(dev); @@ -851,21 +886,23 @@ static int __maybe_unused rzg2l_csi2_pm_runtime_resume(struct device *dev) } static const struct dev_pm_ops rzg2l_csi2_pm_ops = { - SET_RUNTIME_PM_OPS(rzg2l_csi2_pm_runtime_suspend, rzg2l_csi2_pm_runtime_resume, NULL) + RUNTIME_PM_OPS(rzg2l_csi2_pm_runtime_suspend, + rzg2l_csi2_pm_runtime_resume, NULL) }; static const struct of_device_id rzg2l_csi2_of_table[] = { { .compatible = "renesas,rzg2l-csi2", }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, rzg2l_csi2_of_table); static struct platform_driver rzg2l_csi2_pdrv = { - .remove_new = rzg2l_csi2_remove, + .remove = rzg2l_csi2_remove, .probe = rzg2l_csi2_probe, .driver = { .name = "rzg2l-csi2", .of_match_table = rzg2l_csi2_of_table, - .pm = &rzg2l_csi2_pm_ops, + .pm = pm_ptr(&rzg2l_csi2_pm_ops), }, }; |