From 84da042e702347c186b84d9cc2e766f83e1814d6 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 20 Aug 2019 16:15:44 +0300 Subject: dmaengine: dw: platform: Move handle check to dw_dma_acpi_controller_register() Move ACPI handle check to the dw_dma_acpi_controller_register(). While here, convert it to has_acpi_companion() which is recommended way. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20190820131546.75744-9-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul --- drivers/dma/dw/platform.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers/dma') diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c index 44fec1eabccd..b8514d7895d1 100644 --- a/drivers/dma/dw/platform.c +++ b/drivers/dma/dw/platform.c @@ -76,6 +76,9 @@ static void dw_dma_acpi_controller_register(struct dw_dma *dw) struct acpi_dma_filter_info *info; int ret; + if (!has_acpi_companion(dev)) + return; + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); if (!info) return; @@ -93,6 +96,9 @@ static void dw_dma_acpi_controller_free(struct dw_dma *dw) { struct device *dev = dw->dma.dev; + if (!has_acpi_companion(dev)) + return; + acpi_dma_controller_free(dev); } #else /* !CONFIG_ACPI */ @@ -239,8 +245,7 @@ static int dw_probe(struct platform_device *pdev) "could not register of_dma_controller\n"); } - if (ACPI_HANDLE(&pdev->dev)) - dw_dma_acpi_controller_register(chip->dw); + dw_dma_acpi_controller_register(chip->dw); return 0; @@ -256,8 +261,7 @@ static int dw_remove(struct platform_device *pdev) struct dw_dma_chip *chip = data->chip; int ret; - if (ACPI_HANDLE(&pdev->dev)) - dw_dma_acpi_controller_free(chip->dw); + dw_dma_acpi_controller_free(chip->dw); if (pdev->dev.of_node) of_dma_controller_free(pdev->dev.of_node); -- cgit v1.2.3-59-g8ed1b