Hi Sebastien, Many thanks for this patch. Please note that there is another series on top of this code [0], that turns my patch that you mention below obsolete, maybe you may want to rebase on top of that. and also a different patch from me [1].
[0]: https://lore.kernel.org/lkml/20190430225018.30252-2-slongerb...@gmail.com/#b [1]: https://lore.kernel.org/linux-media/20190430222523.22814-1-rui.si...@linaro.org/ On Tue 30 Apr 2019 at 08:49, Sébastien Szymanski wrote: > i.MX7 and i.MX6UL/L have the same CSI controller. So add i.MX6UL/L support > to imx7-media-csi driver. > > Signed-off-by: Sébastien Szymanski <sebastien.szyman...@armadeus.com> Can you also add i.MX6UL/L to the header of this file and maybe in the help string in the Kconfig. That would make it clear that this is supported also by this driver. > --- > This patch needs the following patch from Rui Miguel Silva: > https://patchwork.linuxtv.org/patch/55657/ > > I have tested this patch with a OV5640 sensor (8-bit parallel). The pipeline > is: > > Device topology > - entity 1: csi (2 pads, 2 links) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev0 > pad0: Sink > [fmt:UYVY8_2X8/640x480 field:none colorspace:smpte170m > xfer:709 ycbcr:601 quantization:lim-range] > <- "ov5640 1-003c":0 [ENABLED] > pad1: Source > [fmt:UYVY8_2X8/640x480 field:none colorspace:smpte170m > xfer:709 ycbcr:601 quantization:lim-range] > -> "csi capture":0 [ENABLED] > > - entity 4: csi capture (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video0 > pad0: Sink > <- "csi":1 [ENABLED] > > - entity 10: ov5640 1-003c (1 pad, 1 link) > type V4L2 subdev subtype Sensor flags 0 > device node name /dev/v4l-subdev1 > pad0: Source > [fmt:UYVY8_2X8/640x480@1/30 field:none colorspace:srgb > xfer:srgb ycbcr:601 quantization:full-range] > -> "csi":0 [ENABLED] > > drivers/staging/media/imx/imx7-media-csi.c | 61 ++++++++++++++++------ > 1 file changed, 46 insertions(+), 15 deletions(-) > > diff --git a/drivers/staging/media/imx/imx7-media-csi.c > b/drivers/staging/media/imx/imx7-media-csi.c > index a708a0340eb1..ef4534a96fa0 100644 > --- a/drivers/staging/media/imx/imx7-media-csi.c > +++ b/drivers/staging/media/imx/imx7-media-csi.c > @@ -154,6 +154,11 @@ > > static const char * const imx7_csi_clk_id[] = {"axi", "dcic", "mclk"}; > > +enum csi_type { maybe here the name could be something along enum csi_device_id, I don't know, type does not sound good to me?? > + IMX7, > + IMX6UL > +}; > + > struct imx7_csi { > struct device *dev; > struct v4l2_subdev sd; > @@ -195,6 +200,7 @@ struct imx7_csi { > bool is_init; > bool is_streaming; > bool is_csi2; > + enum csi_type type; here the same, instead type maybe dev_id?? or dev_type?? > > struct completion last_eof_completion; > }; > @@ -554,6 +560,14 @@ static int imx7_csi_pad_link_validate(struct v4l2_subdev > *sd, > if (ret) > return ret; > > + if (csi->type == IMX6UL) { > + mutex_lock(&csi->lock); > + csi->is_csi2 = false; > + mutex_unlock(&csi->lock); > + > + return 0; > + } > + > ret = imx7_csi_get_upstream_endpoint(csi, &upstream_ep, true); > if (ret) { > v4l2_err(&csi->sd, "failed to find upstream endpoint\n"); > @@ -763,6 +777,7 @@ static int imx7_csi_configure(struct imx7_csi *csi) > struct v4l2_pix_format *out_pix = &vdev->fmt.fmt.pix; > __u32 in_code = csi->format_mbus[IMX7_CSI_PAD_SINK].code; > u32 cr1, cr18; > + int width = out_pix->width; > > if (out_pix->field == V4L2_FIELD_INTERLACED) { > imx7_csi_deinterlace_enable(csi, true); > @@ -772,15 +787,27 @@ static int imx7_csi_configure(struct imx7_csi *csi) > imx7_csi_buf_stride_set(csi, 0); > } > > - imx7_csi_set_imagpara(csi, out_pix->width, out_pix->height); > + cr18 = imx7_csi_reg_read(csi, CSI_CSICR18); > + > + if (!csi->is_csi2) { > + if (out_pix->pixelformat == V4L2_PIX_FMT_UYVY || > + out_pix->pixelformat == V4L2_PIX_FMT_YUYV) > + width *= 2; > + > + imx7_csi_set_imagpara(csi, width, out_pix->height); > + > + cr18 |= (BIT_BASEADDR_SWITCH_EN | BIT_BASEADDR_SWITCH_SEL | > + BIT_BASEADDR_CHG_ERR_EN); > + imx7_csi_reg_write(csi, cr18, CSI_CSICR18); > > - if (!csi->is_csi2) > return 0; > + } > + > + imx7_csi_set_imagpara(csi, width, out_pix->height); > > cr1 = imx7_csi_reg_read(csi, CSI_CSICR1); > cr1 &= ~BIT_GCLK_MODE; > > - cr18 = imx7_csi_reg_read(csi, CSI_CSICR18); > cr18 &= BIT_MIPI_DATA_FORMAT_MASK; > cr18 |= BIT_DATA_FROM_MIPI; > > @@ -815,12 +842,9 @@ static int imx7_csi_enable(struct imx7_csi *csi) > { > imx7_csi_sw_reset(csi); > > - if (csi->is_csi2) { > - imx7_csi_dmareq_rff_enable(csi); > - imx7_csi_hw_enable_irq(csi); > - imx7_csi_hw_enable(csi); > - return 0; > - } > + imx7_csi_dmareq_rff_enable(csi); > + imx7_csi_hw_enable_irq(csi); > + imx7_csi_hw_enable(csi); > > return 0; > } > @@ -1218,20 +1242,33 @@ static int imx7_csi_clocks_get(struct imx7_csi *csi) > return devm_clk_bulk_get(dev, csi->num_clks, csi->clks); > } > > +static const struct of_device_id imx7_csi_of_match[] = { > + { .compatible = "fsl,imx7-csi", .data = (void *)IMX7 }, > + { .compatible = "fsl,imx6ul-csi", .data = (void *)IMX6UL }, > + { }, > +}; > +MODULE_DEVICE_TABLE(of, imx7_csi_of_match); > + > static int imx7_csi_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > struct device_node *node = dev->of_node; > struct imx_media_dev *imxmd; > struct imx7_csi *csi; > + const struct of_device_id *of_id; > struct resource *res; > int ret; > > + of_id = of_match_node(imx7_csi_of_match, node); > + if (!of_id) > + return -ENODEV; > + > csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL); > if (!csi) > return -ENOMEM; > > csi->dev = dev; > + csi->type = (enum csi_type)of_id->data; > > ret = imx7_csi_clocks_get(csi); > if (ret < 0) { > @@ -1349,12 +1386,6 @@ static int imx7_csi_remove(struct platform_device > *pdev) > return 0; > } > > -static const struct of_device_id imx7_csi_of_match[] = { > - { .compatible = "fsl,imx7-csi" }, > - { }, > -}; > -MODULE_DEVICE_TABLE(of, imx7_csi_of_match); > - > static struct platform_driver imx7_csi_driver = { > .probe = imx7_csi_probe, > .remove = imx7_csi_remove, _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
