diff options
Diffstat (limited to 'drivers/mfd/cs5535-mfd.c')
| -rw-r--r-- | drivers/mfd/cs5535-mfd.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c index 59ca6f151e78..886a06871065 100644 --- a/drivers/mfd/cs5535-mfd.c +++ b/drivers/mfd/cs5535-mfd.c @@ -39,6 +39,37 @@ enum cs5535_mfd_bars { NR_BARS, }; +static int cs5535_mfd_res_enable(struct platform_device *pdev) +{ + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!res) { + dev_err(&pdev->dev, "can't fetch device resource info\n"); + return -EIO; + } + + if (!request_region(res->start, resource_size(res), DRV_NAME)) { + dev_err(&pdev->dev, "can't request region\n"); + return -EIO; + } + + return 0; +} + +static int cs5535_mfd_res_disable(struct platform_device *pdev) +{ + struct resource *res; + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!res) { + dev_err(&pdev->dev, "can't fetch device resource info\n"); + return -EIO; + } + + release_region(res->start, resource_size(res)); + return 0; +} + static __devinitdata struct resource cs5535_mfd_resources[NR_BARS]; static __devinitdata struct mfd_cell cs5535_mfd_cells[] = { @@ -65,12 +96,18 @@ static __devinitdata struct mfd_cell cs5535_mfd_cells[] = { .name = "cs5535-pms", .num_resources = 1, .resources = &cs5535_mfd_resources[PMS_BAR], + + .enable = cs5535_mfd_res_enable, + .disable = cs5535_mfd_res_disable, }, { .id = ACPI_BAR, .name = "cs5535-acpi", .num_resources = 1, .resources = &cs5535_mfd_resources[ACPI_BAR], + + .enable = cs5535_mfd_res_enable, + .disable = cs5535_mfd_res_disable, }, }; |