linux-kernel - [PATCH v3 03/18] driver core: platform: Rename platform_dma

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Date:   Mon,  6 Dec 2021 09:58:48 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Joerg Roedel <joro@...tes.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Christoph Hellwig <hch@...radead.org>,
        Kevin Tian <kevin.tian@...el.com>,
        Ashok Raj <ashok.raj@...el.com>
Cc:     Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
        Dan Williams <dan.j.williams@...el.com>, rafael@...nel.org,
        Diana Craciun <diana.craciun@....nxp.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Eric Auger <eric.auger@...hat.com>,
        Liu Yi L <yi.l.liu@...el.com>,
        Jacob jun Pan <jacob.jun.pan@...el.com>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Stuart Yoder <stuyoder@...il.com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Li Yang <leoyang.li@....com>,
        Dmitry Osipenko <digetx@...il.com>,
        iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure()

The platform_dma_configure() is shared between platform and amba bus
drivers. Rename the common helper to firmware_dma_configure() so that
both platform and amba bus drivers could customize their dma_configure
callbacks.

Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
---
 include/linux/platform_device.h | 2 +-
 drivers/amba/bus.c              | 2 +-
 drivers/base/platform.c         | 5 ++---
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 7c96f169d274..4381c34af7e0 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -328,7 +328,7 @@ extern int platform_pm_restore(struct device *dev);
 #define platform_pm_restore		NULL
 #endif
 
-extern int platform_dma_configure(struct device *dev);
+extern int firmware_dma_configure(struct device *dev);
 
 #ifdef CONFIG_PM_SLEEP
 #define USE_PLATFORM_PM_SLEEP_OPS \
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 720aa6cdd402..08c094124c0e 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -319,7 +319,7 @@ struct bus_type amba_bustype = {
 	.probe		= amba_probe,
 	.remove		= amba_remove,
 	.shutdown	= amba_shutdown,
-	.dma_configure	= platform_dma_configure,
+	.dma_configure	= firmware_dma_configure,
 	.pm		= &amba_pm,
 };
 EXPORT_SYMBOL_GPL(amba_bustype);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 598acf93a360..125d708c0eb3 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -1449,8 +1449,7 @@ static void platform_shutdown(struct device *_dev)
 		drv->shutdown(dev);
 }
 
-
-int platform_dma_configure(struct device *dev)
+int firmware_dma_configure(struct device *dev)
 {
 	enum dev_dma_attr attr;
 	int ret = 0;
@@ -1478,7 +1477,7 @@ struct bus_type platform_bus_type = {
 	.probe		= platform_probe,
 	.remove		= platform_remove,
 	.shutdown	= platform_shutdown,
-	.dma_configure	= platform_dma_configure,
+	.dma_configure	= firmware_dma_configure,
 	.pm		= &platform_dev_pm_ops,
 };
 EXPORT_SYMBOL_GPL(platform_bus_type);
-- 
2.25.1