[PATCH v2 4/5] dmaengine: ti: k3-udma-private: Use udma_read/write for register access

Peter Ujfalusi
2020-07-07T10:23:00Z

Instead of using higher level wrappers (udma_rchanrt/tchanrt read/write),
use the underlying register access functions directly.

This will allow changes in the higher level wrappers within the DMAengine
driver.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
drivers/dma/ti/k3-udma-private.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/ti/k3-udma-private.c b/drivers/dma/ti/k3-udma-private.c
index 77e8e67d995b..aa24e554f7b4 100644
--- a/drivers/dma/ti/k3-udma-private.c
+++ b/drivers/dma/ti/k3-udma-private.c
@@ -121,13 +121,17 @@ XUDMA_GET_RESOURCE_ID(rflow);
#define XUDMA_RT_IO_FUNCTIONS(res) \
u32 xudma_##res##rt_read(struct udma_##res *p, int reg) \
{ \
- return udma_##res##rt_read(p, reg); \
+ if (!p) \
+ return 0; \
+ return udma_read(p->reg_rt, reg); \
} \
EXPORT_SYMBOL(xudma_##res##rt_read); \
\
void xudma_##res##rt_write(struct udma_##res *p, int reg, u32 val) \
{ \
- udma_##res##rt_write(p, reg, val); \
+ if (!p) \
+ return; \
+ udma_write(p->reg_rt, reg, val); \
} \
EXPORT_SYMBOL(xudma_##res##rt_write)
XUDMA_RT_IO_FUNCTIONS(tchan);