From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heikki Krogerus Subject: Re: [PATCH 2/4] ACPI / platform: provide default DMA mask Date: Tue, 23 Sep 2014 15:17:12 +0300 Message-ID: <20140923121712.GD18814@xps8300> References: <1408535728-10518-1-git-send-email-heikki.krogerus@linux.intel.com> <1408535728-10518-3-git-send-email-heikki.krogerus@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1408535728-10518-3-git-send-email-heikki.krogerus@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org To: "Rafael J. Wysocki" Cc: Felipe Balbi , Mika Westerberg , Alan Cox , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org List-Id: linux-acpi@vger.kernel.org On Wed, Aug 20, 2014 at 02:55:26PM +0300, Heikki Krogerus wrote: > Most devices are configured for 32-bit DMA addresses. > Setting the mask to 32-bit here removes the need for the > drivers to do it separately. Rafael, is this OK? > Signed-off-by: Heikki Krogerus > --- > drivers/acpi/acpi_platform.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c > index 2bf9082..8d099e6 100644 > --- a/drivers/acpi/acpi_platform.c > +++ b/drivers/acpi/acpi_platform.c > @@ -16,6 +16,7 @@ > #include > #include > #include > +#include > #include > > #include "internal.h" > @@ -102,6 +103,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev) > pdevinfo.res = resources; > pdevinfo.num_res = count; > pdevinfo.acpi_node.companion = adev; > + pdevinfo.dma_mask = DMA_BIT_MASK(32); > pdev = platform_device_register_full(&pdevinfo); > if (IS_ERR(pdev)) > dev_err(&adev->dev, "platform device creation failed: %ld\n", > -- > 2.1.0 -- heikki