linux-kernel - Re: [PATCH] ACPI / SPI: Use parent's ACPI_HANDLE() in acpi_register_spi

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Date:	Mon, 1 Apr 2013 11:27:17 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, grant.likely@...retlab.ca,
	broonie@...nsource.wolfsonmicro.com
Subject: Re: [PATCH] ACPI / SPI: Use parent's ACPI_HANDLE() in
 acpi_register_spi_devices()

On Mon, Apr 01, 2013 at 02:21:08AM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> The ACPI handle of struct spi_master's dev member should not be
> set, because this causes that struct spi_master to be associated
> with the ACPI device node corresponding to its parent as the
> second "physical_device", which is incorrect (this happens during
> the registration of struct spi_master).  Consequently,
> acpi_register_spi_devices() should use the ACPI handle of the
> parent of the struct spi_master it is called for rather than that
> struct spi_master's ACPI handle (which should be NULL).
> 
> Make that happen and modify the spi-pxa2xx driver, which currently is
> the only driver for ACPI-enumerated SPI controller chips, not to set
> the ACPI handle for the struct spi_master it creates.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
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