diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-07-01 16:55:02 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-10-31 15:49:17 +0100 |
| commit | 536dc1eb6bc36db6a03e002b421a0b473404b397 (patch) | |
| tree | 3e9ef80dfd08982ad0ae829ab47fba89acd116fe /drivers/firmware | |
| parent | DMA-API: dcdbas: update DMA mask handing (diff) | |
| download | linux-536dc1eb6bc36db6a03e002b421a0b473404b397.tar.xz linux-536dc1eb6bc36db6a03e002b421a0b473404b397.zip | |
DMA-API: firmware/google/gsmi.c: avoid direct access to DMA masks
This driver doesn't need to directly access DMA masks if it uses the
platform_device_register_full() API rather than
platform_device_register_simple() - the former function can initialize
the DMA mask appropriately.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/google/gsmi.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c index 6eb535ffeddc..e5a67b24587a 100644 --- a/drivers/firmware/google/gsmi.c +++ b/drivers/firmware/google/gsmi.c @@ -764,6 +764,13 @@ static __init int gsmi_system_valid(void) static struct kobject *gsmi_kobj; static struct efivars efivars; +static const struct platform_device_info gsmi_dev_info = { + .name = "gsmi", + .id = -1, + /* SMI callbacks require 32bit addresses */ + .dma_mask = DMA_BIT_MASK(32), +}; + static __init int gsmi_init(void) { unsigned long flags; @@ -776,7 +783,7 @@ static __init int gsmi_init(void) gsmi_dev.smi_cmd = acpi_gbl_FADT.smi_command; /* register device */ - gsmi_dev.pdev = platform_device_register_simple("gsmi", -1, NULL, 0); + gsmi_dev.pdev = platform_device_register_full(&gsmi_dev_info); if (IS_ERR(gsmi_dev.pdev)) { printk(KERN_ERR "gsmi: unable to register platform device\n"); return PTR_ERR(gsmi_dev.pdev); @@ -785,10 +792,6 @@ static __init int gsmi_init(void) /* SMI access needs to be serialized */ spin_lock_init(&gsmi_dev.lock); - /* SMI callbacks require 32bit addresses */ - gsmi_dev.pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - gsmi_dev.pdev->dev.dma_mask = - &gsmi_dev.pdev->dev.coherent_dma_mask; ret = -ENOMEM; gsmi_dev.dma_pool = dma_pool_create("gsmi", &gsmi_dev.pdev->dev, GSMI_BUF_SIZE, GSMI_BUF_ALIGN, 0); |