diff options
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.patch | 100 |
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; - } |