media: camss: Add support for VFE hardware version Titan 170

Add register definitions for version 170 of the Titan architecture
and implement support for the RDI output mode.

The RDI mode as opposed to the PIX output mode for the VFE unit does
not support any ISP functionality. This means essentially only
supporting dumping the output of the whatever the CSI decoder receives
from the sensor.

For example will a sensor outputting YUV pixel format frames, only
allow the VFE to dump those frames as they are received by the ISP
to memory through the RDI interface.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

1 files changed, 38 insertions, 9 deletions

diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index e8cf66416004..c4b2c8edb760 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -96,6 +96,32 @@ static const struct vfe_format formats_pix_8x96[] = {
 	{ MEDIA_BUS_FMT_YVYU8_2X8, 8 },
 };
 
+static const struct vfe_format formats_rdi_845[] = {
+	{ MEDIA_BUS_FMT_UYVY8_2X8, 8 },
+	{ MEDIA_BUS_FMT_VYUY8_2X8, 8 },
+	{ MEDIA_BUS_FMT_YUYV8_2X8, 8 },
+	{ MEDIA_BUS_FMT_YVYU8_2X8, 8 },
+	{ MEDIA_BUS_FMT_SBGGR8_1X8, 8 },
+	{ MEDIA_BUS_FMT_SGBRG8_1X8, 8 },
+	{ MEDIA_BUS_FMT_SGRBG8_1X8, 8 },
+	{ MEDIA_BUS_FMT_SRGGB8_1X8, 8 },
+	{ MEDIA_BUS_FMT_SBGGR10_1X10, 10 },
+	{ MEDIA_BUS_FMT_SGBRG10_1X10, 10 },
+	{ MEDIA_BUS_FMT_SGRBG10_1X10, 10 },
+	{ MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
+	{ MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, 16 },
+	{ MEDIA_BUS_FMT_SBGGR12_1X12, 12 },
+	{ MEDIA_BUS_FMT_SGBRG12_1X12, 12 },
+	{ MEDIA_BUS_FMT_SGRBG12_1X12, 12 },
+	{ MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
+	{ MEDIA_BUS_FMT_SBGGR14_1X14, 14 },
+	{ MEDIA_BUS_FMT_SGBRG14_1X14, 14 },
+	{ MEDIA_BUS_FMT_SGRBG14_1X14, 14 },
+	{ MEDIA_BUS_FMT_SRGGB14_1X14, 14 },
+	{ MEDIA_BUS_FMT_Y10_1X10, 10 },
+	{ MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, 16 },
+};
+
 /*
  * vfe_get_bpp - map media bus format to bits per pixel
  * @formats: supported media bus formats array
@@ -192,7 +218,8 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
 			return sink_code;
 		}
 	else if (vfe->camss->version == CAMSS_8x96 ||
-		 vfe->camss->version == CAMSS_660)
+		 vfe->camss->version == CAMSS_660 ||
+		 vfe->camss->version == CAMSS_845)
 		switch (sink_code) {
 		case MEDIA_BUS_FMT_YUYV8_2X8:
 		{
@@ -256,13 +283,7 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
 		return 0;
 }
 
-/*
- * vfe_reset - Trigger reset on VFE module and wait to complete
- * @vfe: VFE device
- *
- * Return 0 on success or a negative error code otherwise
- */
-static int vfe_reset(struct vfe_device *vfe)
+int vfe_reset(struct vfe_device *vfe)
 {
 	unsigned long time;
 
@@ -429,7 +450,8 @@ static int vfe_set_clock_rates(struct vfe_device *vfe)
 		struct camss_clock *clock = &vfe->clock[i];
 
 		if (!strcmp(clock->name, "vfe0") ||
-		    !strcmp(clock->name, "vfe1")) {
+		    !strcmp(clock->name, "vfe1") ||
+		    !strcmp(clock->name, "vfe_lite")) {
 			u64 min_rate = 0;
 			long rate;
 
@@ -1268,6 +1290,10 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
 	case CAMSS_660:
 		vfe->ops = &vfe_ops_4_8;
 		break;
+
+	case CAMSS_845:
+		vfe->ops = &vfe_ops_170;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -1379,6 +1405,9 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
 				l->formats = formats_rdi_8x96;
 				l->nformats = ARRAY_SIZE(formats_rdi_8x96);
 			}
+		} else if (camss->version == CAMSS_845) {
+			l->formats = formats_rdi_845;
+			l->nformats = ARRAY_SIZE(formats_rdi_845);
 		} else {
 			return -EINVAL;
 		}