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rapidio: add global inbound port write interfaces

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Add new Port Write handler registration interfaces that attach PW
handlers to local mport device objects.  This is different from old
interface that attaches PW callback to individual RapidIO device.  The
new interfaces are intended for use for common event handling (e.g.
hot-plug notifications) while the old interface is available for
individual device drivers.

This patch is based on patch proposed by Andre van Herk but preserves
existing per-device interface and adds lock protection for list
handling.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexandre Bounine
2016-03-22 14:26:44 -07:00
committed by Linus Torvalds
parent b6cb95e8eb
commit 9a0b062742
7 changed files with 144 additions and 51 deletions
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1
arch/powerpc/sysdev/fsl_rio.c
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@@ -726,6 +726,7 @@ int fsl_rio_setup(struct platform_device *dev)
fsl_rio_inbound_mem_init(priv);
dbell->mport[i] = port;
pw->mport[i] = port;
if (rio_register_mport(port)) {
release_resource(&port->iores);