Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 4a748c3..8a05db3 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ACPI helpers for DMA request / controller
*
@@ -6,13 +7,10 @@
* Copyright (C) 2013, Intel Corporation
* Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/device.h>
+#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/kernel.h>
@@ -85,6 +83,12 @@
if (si->base_request_line == 0 && si->num_handshake_signals == 0)
return 0;
+ /* Set up DMA mask based on value from CSRT */
+ ret = dma_coerce_mask_and_coherent(&adev->dev,
+ DMA_BIT_MASK(si->dma_address_width));
+ if (ret)
+ return 0;
+
adma->base_request_line = si->base_request_line;
adma->end_request_line = si->base_request_line +
si->num_handshake_signals - 1;
@@ -143,7 +147,7 @@
* @dev: struct device of DMA controller
* @acpi_dma_xlate: translation function which converts a dma specifier
* into a dma_chan structure
- * @data pointer to controller specific data to be used by
+ * @data: pointer to controller specific data to be used by
* translation function
*
* Allocated memory should be freed with appropriate acpi_dma_controller_free()
@@ -227,7 +231,7 @@
* devm_acpi_dma_controller_register - resource managed acpi_dma_controller_register()
* @dev: device that is registering this DMA controller
* @acpi_dma_xlate: translation function
- * @data pointer to controller specific data
+ * @data: pointer to controller specific data
*
* Managed acpi_dma_controller_register(). DMA controller registered by this
* function are automatically freed on driver detach. See
@@ -260,6 +264,7 @@
/**
* devm_acpi_dma_controller_free - resource managed acpi_dma_controller_free()
+ * @dev: device that is unregistering as DMA controller
*
* Unregister a DMA controller registered with
* devm_acpi_dma_controller_register(). Normally this function will not need to