[PATCH 3/7] base: Add calls to domains controller
From: Benjamin Gaignard <hidden>
Date: 2019-02-27 12:13:35
Also in:
lkml
Subsystem:
driver core, kobjects, debugfs and sysfs, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Linus Torvalds
To avoid modifying all the drivers call domainsctrl_set_default_config before probe to apply the configuration define in device node (if any). When unbinding the device try to apply configuration named "unbind". Signed-off-by: Benjamin Gaignard <redacted> Reviewed-by: Mark Brown <broonie@kernel.org> --- drivers/base/dd.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 8ac10af17c00..2880fe893096 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c@@ -20,6 +20,7 @@ #include <linux/device.h> #include <linux/delay.h> #include <linux/dma-mapping.h> +#include <linux/domainsctrl.h> #include <linux/init.h> #include <linux/module.h> #include <linux/kthread.h>
@@ -478,6 +479,10 @@ static int really_probe(struct device *dev, struct device_driver *drv) re_probe: dev->driver = drv; + ret = domainsctrl_set_default_config(dev); + if (ret) + goto domainctrl_failed; + /* If using pinctrl, bind pins now before probing */ ret = pinctrl_bind_pins(dev); if (ret)
@@ -548,6 +553,8 @@ static int really_probe(struct device *dev, struct device_driver *drv) blocking_notifier_call_chain(&dev->bus->p->bus_notifier, BUS_NOTIFY_DRIVER_NOT_BOUND, dev); pinctrl_bind_failed: + domainsctrl_set_config_by_name(dev, "unbind"); +domainctrl_failed: device_links_no_driver(dev); devres_release_all(dev); driver_sysfs_remove(dev);
@@ -970,6 +977,8 @@ static void __device_release_driver(struct device *dev, struct device *parent) device_links_driver_cleanup(dev); arch_teardown_dma_ops(dev); + domainsctrl_set_config_by_name(dev, "unbind"); + devres_release_all(dev); dev->driver = NULL; dev_set_drvdata(dev, NULL);
--
2.15.0
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