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Date: Wed, 27 Feb 2019 13:12:28 +0100 From: Benjamin Gaignard <benjamin.gaignard@...com> To: <broonie@...nel.org>, <robh@...nel.org>, <arnd@...db.de>, <shawnguo@...nel.org>, <s.hauer@...gutronix.de>, <fabio.estevam@....com> CC: <linux-kernel@...r.kernel.org>, <loic.pallardy@...com>, <benjamin.gaignard@...aro.org>, <kernel@...gutronix.de>, <linux-imx@....com>, <linux-arm-kernel@...ts.infradead.org>, Benjamin Gaignard <benjamin.gaignard@...com> Subject: [PATCH 3/7] base: Add calls to domains controller 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 <benjamin.gaignard@...com> Reviewed-by: Mark Brown <broonie@...nel.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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