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driver core: initialize a default DMA mask for platform device

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We still treat devices without a DMA mask as defaulting to 32-bits for
both mask, but a few releases ago we've started warning about such
cases, as they require special cases to work around this sloppyness.
Add a dma_mask field to struct platform_device so that we can initialize
the dma_mask pointer in struct device and initialize both masks to
32-bits by default, replacing similar functionality in m68k and
powerpc.  The arch_setup_pdev_archdata hooks is now unused and removed.

Note that the code looks a little odd with the various conditionals
because we have to support platform_device structures that are
statically allocated.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20190816062435.881-7-hch@lst.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig
2019-08-16 08:24:35 +02:00
committed by Greg Kroah-Hartman
parent bd5defaee8
commit cdfee56232
9 changed files with 17 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/sh/boards/mach-ap325rxa/setup.c
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@@ -527,7 +527,6 @@ static int __init ap325rxa_devices_setup(void)
/* Initialize CEU platform device separately to map memory first */
device_initialize(&ap325rxa_ceu_device.dev);
arch_setup_pdev_archdata(&ap325rxa_ceu_device);
dma_declare_coherent_memory(&ap325rxa_ceu_device.dev,
ceu_dma_membase, ceu_dma_membase,
ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1);

2
arch/sh/boards/mach-ecovec24/setup.c
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@@ -1440,7 +1440,6 @@ static int __init arch_setup(void)
/* Initialize CEU platform devices separately to map memory first */
device_initialize(&ecovec_ceu_devices[0]->dev);
arch_setup_pdev_archdata(ecovec_ceu_devices[0]);
dma_declare_coherent_memory(&ecovec_ceu_devices[0]->dev,
ceu0_dma_membase, ceu0_dma_membase,
ceu0_dma_membase +
@@ -1448,7 +1447,6 @@ static int __init arch_setup(void)
platform_device_add(ecovec_ceu_devices[0]);
device_initialize(&ecovec_ceu_devices[1]->dev);
arch_setup_pdev_archdata(ecovec_ceu_devices[1]);
dma_declare_coherent_memory(&ecovec_ceu_devices[1]->dev,
ceu1_dma_membase, ceu1_dma_membase,
ceu1_dma_membase +

1
arch/sh/boards/mach-kfr2r09/setup.c
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@@ -601,7 +601,6 @@ static int __init kfr2r09_devices_setup(void)
/* Initialize CEU platform device separately to map memory first */
device_initialize(&kfr2r09_ceu_device.dev);
arch_setup_pdev_archdata(&kfr2r09_ceu_device);
dma_declare_coherent_memory(&kfr2r09_ceu_device.dev,
ceu_dma_membase, ceu_dma_membase,
ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1);

1
arch/sh/boards/mach-migor/setup.c
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@@ -602,7 +602,6 @@ static int __init migor_devices_setup(void)
/* Initialize CEU platform device separately to map memory first */
device_initialize(&migor_ceu_device.dev);
arch_setup_pdev_archdata(&migor_ceu_device);
dma_declare_coherent_memory(&migor_ceu_device.dev,
ceu_dma_membase, ceu_dma_membase,
ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1);

2
arch/sh/boards/mach-se/7724/setup.c
View File

@@ -937,7 +937,6 @@ static int __init devices_setup(void)
/* Initialize CEU platform devices separately to map memory first */
device_initialize(&ms7724se_ceu_devices[0]->dev);
arch_setup_pdev_archdata(ms7724se_ceu_devices[0]);
dma_declare_coherent_memory(&ms7724se_ceu_devices[0]->dev,
ceu0_dma_membase, ceu0_dma_membase,
ceu0_dma_membase +
@@ -945,7 +944,6 @@ static int __init devices_setup(void)
platform_device_add(ms7724se_ceu_devices[0]);
device_initialize(&ms7724se_ceu_devices[1]->dev);
arch_setup_pdev_archdata(ms7724se_ceu_devices[1]);
dma_declare_coherent_memory(&ms7724se_ceu_devices[1]->dev,
ceu1_dma_membase, ceu1_dma_membase,
ceu1_dma_membase +