[media] sh-mobile-ceu-camera: add primitive OF support
Add an OF hook to sh_mobile_ceu_camera.c, no properties so far. Booting with DT also requires platform data to be optional. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -27,6 +27,7 @@
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/moduleparam.h>
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#include <linux/of.h>
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#include <linux/time.h>
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#include <linux/slab.h>
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#include <linux/device.h>
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@ -118,6 +119,7 @@ struct sh_mobile_ceu_dev {
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enum v4l2_field field;
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int sequence;
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unsigned long flags;
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unsigned int image_mode:1;
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unsigned int is_16bit:1;
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@ -706,7 +708,7 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd)
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}
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/* CSI2 special configuration */
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if (pcdev->pdata->csi2) {
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if (pcdev->csi2_pdev) {
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in_width = ((in_width - 2) * 2);
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left_offset *= 2;
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}
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@ -810,7 +812,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
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/* Make choises, based on platform preferences */
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if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) &&
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(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) {
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if (pcdev->pdata->flags & SH_CEU_FLAG_HSYNC_LOW)
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if (pcdev->flags & SH_CEU_FLAG_HSYNC_LOW)
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common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH;
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else
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common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW;
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@ -818,7 +820,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
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if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
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(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
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if (pcdev->pdata->flags & SH_CEU_FLAG_VSYNC_LOW)
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if (pcdev->flags & SH_CEU_FLAG_VSYNC_LOW)
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common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
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else
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common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
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@ -873,11 +875,11 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
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value |= common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
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value |= common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? 1 << 0 : 0;
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if (pcdev->pdata->csi2) /* CSI2 mode */
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if (pcdev->csi2_pdev) /* CSI2 mode */
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value |= 3 << 12;
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else if (pcdev->is_16bit)
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value |= 1 << 12;
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else if (pcdev->pdata->flags & SH_CEU_FLAG_LOWER_8BIT)
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else if (pcdev->flags & SH_CEU_FLAG_LOWER_8BIT)
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value |= 2 << 12;
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ceu_write(pcdev, CAMCR, value);
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@ -1052,7 +1054,7 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int
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return 0;
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}
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if (!pcdev->pdata->csi2) {
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if (!pcdev->pdata || !pcdev->pdata->csi2) {
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/* Are there any restrictions in the CSI-2 case? */
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ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample);
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if (ret < 0)
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@ -2107,13 +2109,17 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
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init_completion(&pcdev->complete);
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pcdev->pdata = pdev->dev.platform_data;
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if (!pcdev->pdata) {
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if (!pcdev->pdata && !pdev->dev.of_node) {
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dev_err(&pdev->dev, "CEU platform data not set.\n");
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return -EINVAL;
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}
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pcdev->max_width = pcdev->pdata->max_width ? : 2560;
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pcdev->max_height = pcdev->pdata->max_height ? : 1920;
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/* TODO: implement per-device bus flags */
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if (pcdev->pdata) {
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pcdev->max_width = pcdev->pdata->max_width ? : 2560;
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pcdev->max_height = pcdev->pdata->max_height ? : 1920;
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pcdev->flags = pcdev->pdata->flags;
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}
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base = devm_ioremap_resource(&pdev->dev, res);
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if (IS_ERR(base))
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@ -2168,7 +2174,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
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goto exit_free_ctx;
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/* CSI2 interfacing */
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csi2 = pcdev->pdata->csi2;
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csi2 = pcdev->pdata ? pcdev->pdata->csi2 : NULL;
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if (csi2) {
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struct platform_device *csi2_pdev =
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platform_device_alloc("sh-mobile-csi2", csi2->id);
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@ -2290,10 +2296,17 @@ static const struct dev_pm_ops sh_mobile_ceu_dev_pm_ops = {
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.runtime_resume = sh_mobile_ceu_runtime_nop,
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};
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static const struct of_device_id sh_mobile_ceu_of_match[] = {
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{ .compatible = "renesas,sh-mobile-ceu" },
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{ }
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};
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MODULE_DEVICE_TABLE(of, sh_mobile_ceu_of_match);
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static struct platform_driver sh_mobile_ceu_driver = {
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.driver = {
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.name = "sh_mobile_ceu",
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.pm = &sh_mobile_ceu_dev_pm_ops,
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.of_match_table = sh_mobile_ceu_of_match,
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},
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.probe = sh_mobile_ceu_probe,
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.remove = sh_mobile_ceu_remove,
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