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Date: Thu, 12 Jan 2017 16:28:04 -0600 From: christopher.lee.bostic@...il.com To: robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk, gregkh@...uxfoundation.org, mturquette@...libre.com, geert+renesas@...der.be, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, joel@....id.au, jk@...abs.org, linux-kernel@...r.kernel.org, andrew@...id.au, alistair@...ple.id.au, benh@...nel.crashing.org Cc: Chris Bostic <cbostic@...ibm.com> Subject: [PATCH v2 07/18] drivers/fsi: Kick off master scan via sysfs From: Chris Bostic <cbostic@...ibm.com> Move master scan from automatic kick off early in kernel power up to a scan file that can be invoked at any particular time based on needs of a given platform. Signed-off-by: Chris Bostic <cbostic@...ibm.com> --- drivers/fsi/fsi-core.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 3160c1c..5f9f7a9 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -53,8 +53,19 @@ static int fsi_master_scan(struct fsi_master *master) fsi_slave_init(master, link, slave_id); return 0; +} + +static ssize_t store_scan(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct fsi_master *master = dev_get_drvdata(dev); + fsi_master_scan(master); + return count; } +static DEVICE_ATTR(scan, 0200, NULL, store_scan); int fsi_master_register(struct fsi_master *master) { @@ -63,8 +74,8 @@ int fsi_master_register(struct fsi_master *master) master->idx = ida_simple_get(&master_ida, 0, 0, GFP_KERNEL); get_device(master->dev); - fsi_master_scan(master); - return 0; + dev_set_drvdata(master->dev, master); + return device_create_file(master->dev, &dev_attr_scan); } EXPORT_SYMBOL_GPL(fsi_master_register); -- 1.8.2.2
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