aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/layerscape/patches-5.4/701-net-0132-bus-fsl-mc-add-root-dprc-rescan-attribute.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0132-bus-fsl-mc-add-root-dprc-rescan-attribute.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0132-bus-fsl-mc-add-root-dprc-rescan-attribute.patch100
1 files changed, 0 insertions, 100 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0132-bus-fsl-mc-add-root-dprc-rescan-attribute.patch b/target/linux/layerscape/patches-5.4/701-net-0132-bus-fsl-mc-add-root-dprc-rescan-attribute.patch
deleted file mode 100644
index 8fd964993e..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0132-bus-fsl-mc-add-root-dprc-rescan-attribute.patch
+++ /dev/null
@@ -1,100 +0,0 @@
-From 64bd4f6f266110d908e51787a81ed0bc9d325941 Mon Sep 17 00:00:00 2001
-From: Ioana Ciornei <ioana.ciornei@nxp.com>
-Date: Mon, 5 Mar 2018 18:37:32 +0200
-Subject: [PATCH] bus: fsl-mc: add root dprc rescan attribute
-
-Introduce the rescan attribute as a device attribute to
-synchronize the fsl-mc bus objects and the MC firmware.
-
-To rescan the root dprc only, e.g.
-echo 1 > /sys/bus/fsl-mc/devices/dprc.1/rescan
-
-Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
----
- Documentation/ABI/stable/sysfs-bus-fsl-mc | 9 ++++++++
- MAINTAINERS | 1 +
- drivers/bus/fsl-mc/dprc-driver.c | 36 +++++++++++++++++++++++++++++++
- 3 files changed, 46 insertions(+)
- create mode 100644 Documentation/ABI/stable/sysfs-bus-fsl-mc
-
---- /dev/null
-+++ b/Documentation/ABI/stable/sysfs-bus-fsl-mc
-@@ -0,0 +1,9 @@
-+What: /sys/bus/fsl-mc/devices/dprc.*/rescan
-+Date: November 2018
-+KernelVersion: 5.0
-+Contact: Ioana Ciornei <ioana.ciornei@nxp.com>
-+Description: Writing a non-zero value to this attribute will
-+ force a rescan of dprc.X container in the system and
-+ synchronize the objects under dprc.X and the
-+ Management Complex firmware.
-+Users: Userspace drivers and management tools
---- a/MAINTAINERS
-+++ b/MAINTAINERS
-@@ -13440,6 +13440,7 @@ F: Documentation/devicetree/bindings/mis
- F: Documentation/networking/device_drivers/freescale/dpaa2/overview.rst
- F: Documentation/networking/dpaa2/overview.rst
- F: include/uapi/linux/fsl_mc.h
-+F: Documentation/ABI/stable/sysfs-bus-fsl-mc
-
- QT1010 MEDIA DRIVER
- M: Antti Palosaari <crope@iki.fi>
---- a/drivers/bus/fsl-mc/dprc-driver.c
-+++ b/drivers/bus/fsl-mc/dprc-driver.c
-@@ -354,6 +354,33 @@ static int dprc_scan_container(struct fs
- return 0;
- }
-
-+static ssize_t rescan_store(struct device *dev,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct fsl_mc_device *root_mc_dev;
-+ struct fsl_mc_bus *root_mc_bus;
-+ unsigned long val;
-+
-+ if (!fsl_mc_is_root_dprc(dev))
-+ return -EINVAL;
-+
-+ root_mc_dev = to_fsl_mc_device(dev);
-+ root_mc_bus = to_fsl_mc_bus(root_mc_dev);
-+
-+ if (kstrtoul(buf, 0, &val) < 0)
-+ return -EINVAL;
-+
-+ if (val) {
-+ mutex_lock(&root_mc_bus->scan_mutex);
-+ dprc_scan_objects(root_mc_dev, NULL);
-+ mutex_unlock(&root_mc_bus->scan_mutex);
-+ }
-+
-+ return count;
-+}
-+static DEVICE_ATTR_WO(rescan);
-+
- /**
- * dprc_irq0_handler - Regular ISR for DPRC interrupt 0
- *
-@@ -692,6 +719,13 @@ static int dprc_probe(struct fsl_mc_devi
-
- mutex_init(&mc_bus->scan_mutex);
-
-+ error = device_create_file(&mc_dev->dev, &dev_attr_rescan);
-+ if (error < 0) {
-+ dev_err(&mc_dev->dev, "device_create_file() failed: %d\n",
-+ error);
-+ goto error_cleanup_open;
-+ }
-+
- /*
- * Discover MC objects in DPRC object:
- */
-@@ -788,6 +822,8 @@ static int dprc_remove(struct fsl_mc_dev
- fsl_mc_uapi_remove_device_file(mc_bus);
- }
-
-+ device_remove_file(&mc_dev->dev, &dev_attr_rescan);
-+
- dev_info(&mc_dev->dev, "DPRC device unbound from driver");
- return 0;
- }