Colin Ian King
4c0eee5065
dmaengine: sh: make array ds_lut static
...
Don't populate the read-only array ds_lut on the stack but instead it
static. Also makes the object code smaller by 163 bytes:
Before:
text data bss dec hex filename
23508 4796 0 28304 6e90 ./drivers/dma/sh/rz-dmac.o
After:
text data bss dec hex filename
23281 4860 0 28141 6ded ./drivers/dma/sh/rz-dmac.o
(gcc version 11.2.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com >
Link: https://lore.kernel.org/r/20210915112038.12407-1-colin.king@canonical.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-10-25 12:15:34 +05:30
Biju Das
161596fd77
dmaengine: sh: rz-dmac: Add DMA clock handling
...
Currently, DMA clocks are turned on by the bootloader.
This patch adds support for DMA clock handling so that
the driver manages the DMA clocks.
Fixes: 5000d37042biju.das.jz@bp.renesas.com >
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be >
Link: https://lore.kernel.org/r/20210923102451.11403-1-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-10-18 12:06:44 +05:30
Dan Carpenter
11a427be2c
dmaengine: sh: fix some NULL dereferences
...
The dma_free_coherent() function needs a valid device pointer or it will
crash.
Fixes: 550c591a89a1 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com >
Link: https://lore.kernel.org/r/20210827085410.GA9183@kili
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-08-31 21:50:23 +05:30
Colin Ian King
1e008336b9
dmaengine: sh: Fix unused initialization of pointer lmdesc
...
Pointer lmdesc is being inintialized with a value that is never read,
it is later being re-assigned a new value. Fix this by initializing
it with the latter value.
Addresses-Coverity: ("Unused value")
Fixes: 550c591a89a1 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC")
Signed-off-by: Colin Ian King <colin.king@canonical.com >
Link: https://lore.kernel.org/r/20210829152811.529766-1-colin.king@canonical.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-08-31 21:49:25 +05:30
Biju Das
5000d37042
dmaengine: sh: Add DMAC driver for RZ/G2L SoC
...
Add DMA Controller driver for RZ/G2L SoC.
Based on the work done by Chris Brandt for RZ/A DMA driver.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com >
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com >
Link: https://lore.kernel.org/r/20210806095322.2326-4-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-08-29 19:14:19 +05:30
