virtualization/linux-yocto: For kernel metadata use git repository instead of local files.

This will allow using branches for supporting multiple kernel versions
more easily.

Note, that BSP description root file virtio-aarch64-standard.scc has to
be kept local withing a recipe. This is needed to add this scc file
explicitly to SRC_URI to have AGL VIRTIO patches applied during kernel
recipe build.

As explained in [1, 2], Yocto kernel metadata is commonly used for two
purposes:

1. To construct Yocto kernel git by committing patches listed in scc
files.
2. To configure Yocto kernel during Yocto build.

When scc file is not explicitly added to SRC_URI, then patch commands
will be ignored during Yocto build because it is assumed that patches
are already pre-applied during Yocto kernel git tree construction.

But, there is not AGL Linux kernel tree, only a repository for AGL
kernel metadata (this one). So, patches from this metadata repository
have to be applied during kernel recipe build.

On the other hand, to ignore patches from YP kernel metadata (which are
already pre-applied), standard.scc is included with `nopatch` keyword.

[1]: https://www.yoctoproject.org/pipermail/yocto/2019-October/046986.html
[2]: https://docs.yoctoproject.org/kernel-dev/maint-appx.html

Bug-AGL: SPEC-4452
Change-Id: Idde8e507eb18fa26e6a5b84ab8443576badb58bf
Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/27878
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>

1 files changed, 0 insertions, 101 deletions

diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-scmi/0002-iio-scmi-Add-reading-raw-attribute.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-scmi/0002-iio-scmi-Add-reading-raw-attribute.patch
deleted file mode 100644
index a11e5e2ff..000000000
--- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-scmi/0002-iio-scmi-Add-reading-raw-attribute.patch
+++ /dev/null
@@ -1,101 +0,0 @@
-From a58a59fa0d626990f32e84bd35e1326cf0532c4a Mon Sep 17 00:00:00 2001
-From: Andriy Tryshnivskyy <andriy.tryshnivskyy@opensynergy.com>
-Date: Sun, 24 Oct 2021 12:16:27 +0300
-Subject: [PATCH] iio/scmi: Add reading "raw" attribute.
-
-Add IIO_CHAN_INFO_RAW to the mask and implement corresponding
-reading "raw" attribute in scmi_iio_read_raw.
-
-Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@opensynergy.com>
-Acked-by: Jyoti Bhayana <jbhayana@google.com>
-Link: https://lore.kernel.org/r/20211024091627.28031-3-andriy.tryshnivskyy@opensynergy.com
-Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
----
- drivers/iio/common/scmi_sensors/scmi_iio.c | 57 +++++++++++++++++++++-
- 1 file changed, 56 insertions(+), 1 deletion(-)
-
-diff --git a/drivers/iio/common/scmi_sensors/scmi_iio.c b/drivers/iio/common/scmi_sensors/scmi_iio.c
-index 7cf2bf282cef..d538bf3ab1ef 100644
---- a/drivers/iio/common/scmi_sensors/scmi_iio.c
-+++ b/drivers/iio/common/scmi_sensors/scmi_iio.c
-@@ -279,6 +279,52 @@ static int scmi_iio_get_odr_val(struct iio_dev *iio_dev, int *val, int *val2)
- 	return 0;
- }
- 
-+static int scmi_iio_read_channel_data(struct iio_dev *iio_dev,
-+			     struct iio_chan_spec const *ch, int *val, int *val2)
-+{
-+	struct scmi_iio_priv *sensor = iio_priv(iio_dev);
-+	u32 sensor_config;
-+	struct scmi_sensor_reading readings[SCMI_IIO_NUM_OF_AXIS];
-+	int err;
-+
-+	sensor_config = FIELD_PREP(SCMI_SENS_CFG_SENSOR_ENABLED_MASK,
-+					SCMI_SENS_CFG_SENSOR_ENABLE);
-+	err = sensor->sensor_ops->config_set(
-+		sensor->ph, sensor->sensor_info->id, sensor_config);
-+	if (err) {
-+		dev_err(&iio_dev->dev,
-+			"Error in enabling sensor %s err %d",
-+			sensor->sensor_info->name, err);
-+		return err;
-+	}
-+
-+	err = sensor->sensor_ops->reading_get_timestamped(
-+		sensor->ph, sensor->sensor_info->id,
-+		sensor->sensor_info->num_axis, readings);
-+	if (err) {
-+		dev_err(&iio_dev->dev,
-+			"Error in reading raw attribute for sensor %s err %d",
-+			sensor->sensor_info->name, err);
-+		return err;
-+	}
-+
-+	sensor_config = FIELD_PREP(SCMI_SENS_CFG_SENSOR_ENABLED_MASK,
-+					SCMI_SENS_CFG_SENSOR_DISABLE);
-+	err = sensor->sensor_ops->config_set(
-+		sensor->ph, sensor->sensor_info->id, sensor_config);
-+	if (err) {
-+		dev_err(&iio_dev->dev,
-+			"Error in disabling sensor %s err %d",
-+			sensor->sensor_info->name, err);
-+		return err;
-+	}
-+
-+	*val = lower_32_bits(readings[ch->scan_index].value);
-+	*val2 = upper_32_bits(readings[ch->scan_index].value);
-+
-+	return IIO_VAL_INT_64;
-+}
-+
- static int scmi_iio_read_raw(struct iio_dev *iio_dev,
- 			     struct iio_chan_spec const *ch, int *val,
- 			     int *val2, long mask)
-@@ -300,6 +346,14 @@ static int scmi_iio_read_raw(struct iio_dev *iio_dev,
- 	case IIO_CHAN_INFO_SAMP_FREQ:
- 		ret = scmi_iio_get_odr_val(iio_dev, val, val2);
- 		return ret ? ret : IIO_VAL_INT_PLUS_MICRO;
-+	case IIO_CHAN_INFO_RAW:
-+		ret = iio_device_claim_direct_mode(iio_dev);
-+		if (ret)
-+			return ret;
-+
-+		ret = scmi_iio_read_channel_data(iio_dev, ch, val, val2);
-+		iio_device_release_direct_mode(iio_dev);
-+		return ret;
- 	default:
- 		return -EINVAL;
- 	}
-@@ -381,7 +435,8 @@ static void scmi_iio_set_data_channel(struct iio_chan_spec *iio_chan,
- 	iio_chan->type = type;
- 	iio_chan->modified = 1;
- 	iio_chan->channel2 = mod;
--	iio_chan->info_mask_separate = BIT(IIO_CHAN_INFO_SCALE);
-+	iio_chan->info_mask_separate =
-+		BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_RAW);
- 	iio_chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ);
- 	iio_chan->info_mask_shared_by_type_available =
- 		BIT(IIO_CHAN_INFO_SAMP_FREQ);
--- 
-2.17.1
-