lkml.org 
[lkml]   [2020]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 08/14] of: Include a dev param in of_dma_get_range()
Date
Currently there is only one caller of of_dma_get_range().  A struct device
*dev param is needed For implementing multiple dma offsets. This function
will still work if dev == NULL.

Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
---
drivers/of/address.c | 4 +++-
drivers/of/device.c | 2 +-
drivers/of/of_private.h | 8 ++++----
3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/of/address.c b/drivers/of/address.c
index 8eea3f6e29a4..96d8cfb14a60 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -920,6 +920,7 @@ EXPORT_SYMBOL(of_io_request_and_map);

/**
* of_dma_get_range - Get DMA range info
+ * @dev: device pointer; only needed for a corner case.
* @np: device node to get DMA range info
* @dma_addr: pointer to store initial DMA address of DMA range
* @paddr: pointer to store initial CPU address of DMA range
@@ -935,7 +936,8 @@ EXPORT_SYMBOL(of_io_request_and_map);
* It returns -ENODEV if "dma-ranges" property was not found
* for this device in DT.
*/
-int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *size)
+int of_dma_get_range(struct device *dev, struct device_node *np, u64 *dma_addr,
+ u64 *paddr, u64 *size)
{
struct device_node *node = of_node_get(np);
const __be32 *ranges = NULL;
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 27203bfd0b22..ef6a741f9f0b 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -95,7 +95,7 @@ int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma)
const struct iommu_ops *iommu;
u64 mask, end;

- ret = of_dma_get_range(np, &dma_addr, &paddr, &size);
+ ret = of_dma_get_range(dev, np, &dma_addr, &paddr, &size);
if (ret < 0) {
/*
* For legacy reasons, we have to assume some devices need
diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h
index edc682249c00..7a83d3a81ab6 100644
--- a/drivers/of/of_private.h
+++ b/drivers/of/of_private.h
@@ -158,11 +158,11 @@ extern int of_bus_n_addr_cells(struct device_node *np);
extern int of_bus_n_size_cells(struct device_node *np);

#ifdef CONFIG_OF_ADDRESS
-extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
- u64 *paddr, u64 *size);
+extern int of_dma_get_range(struct device *dev, struct device_node *np,
+ u64 *dma_addr, u64 *paddr, u64 *size);
#else
-static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
- u64 *paddr, u64 *size)
+static inline int of_dma_get_range(struct device *dev, struct device_node *np,
+ u64 *dma_addr, u64 *paddr, u64 *size)
{
return -ENODEV;
}
--
2.17.1
\
 
 \ /
  Last update: 2020-05-26 21:19    [W:0.233 / U:1.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site