From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: [Resend Patch 3/9] ACPI: Add acpi_bus_attach_private_data() to facilitate to attach data to ACPI handle Date: Tue, 22 Apr 2014 14:23:31 +0300 Message-ID: <20140422112331.GG30677@intel.com> References: <1397654682-7094-1-git-send-email-tianyu.lan@intel.com> <1398147855-9868-1-git-send-email-tianyu.lan@intel.com> <1398147855-9868-4-git-send-email-tianyu.lan@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1398147855-9868-4-git-send-email-tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Lan Tianyu Cc: wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org, rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org, awilliam-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-i2c@vger.kernel.org On Tue, Apr 22, 2014 at 02:24:09PM +0800, Lan Tianyu wrote: > There is already acpi_bus_get_private_data() to get ACPI handle data > which is associated with acpi_bus_private_data_handler(). This patch > is to add acpi_bus_attach_private_data() to make a pair and facilitate > to attach and get data to/from ACPI handle. > > Signed-off-by: Lan Tianyu > --- > drivers/acpi/bus.c | 18 +++++++++++++++++- > include/acpi/acpi_bus.h | 1 + > 2 files changed, 18 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c > index e7e5844..4ed8d48 100644 > --- a/drivers/acpi/bus.c > +++ b/drivers/acpi/bus.c > @@ -132,6 +132,22 @@ void acpi_bus_private_data_handler(acpi_handle handle, > } > EXPORT_SYMBOL(acpi_bus_private_data_handler); > > +int acpi_bus_attach_private_data(acpi_handle handle, void *data) > +{ > + acpi_status status; > + > + status = acpi_attach_data(handle, > + acpi_bus_private_data_handler, data); > + if (ACPI_FAILURE(status)) { > + ACPI_ERROR((AE_INFO, "Error attaching device[%p] data\n", > + handle)); > + return -ENODEV; > + } > + > + return 0; > +} > +EXPORT_SYMBOL(acpi_bus_attach_private_data); When I added GPIO operation region support, Rafael mentioned that we might want to add this private data to the struct acpi_device instead. Either way, looks good to me, Reviewed-by: Mika Westerberg