xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM/dmaengine: pl08x: pass reasonable memcpy settings

Browse Source 
We cannot use bits from configuration registers as API between
platforms and driver like this, abstract it out to two enums
and mimic the stuff passed as device tree data.

This is done to make it possible for the driver to generate the
ccfg word on-the-fly so we can support more PL08x derivatives.

Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Linus Walleij
2017-05-20 23:42:50 +02:00
committed by Vinod Koul
parent 2ea659a9ef
commit 4166a56aa8
6 changed files with 138 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
arch/arm/mach-s3c64xx/pl080.c
View File

@@ -137,16 +137,10 @@ static const struct dma_slave_map s3c64xx_dma0_slave_map[] = {
};
struct pl08x_platform_data s3c64xx_dma0_plat_data = {
.memcpy_channel = {
.bus_id = "memcpy",
.cctl_memcpy =
(PL080_BSIZE_4 << PL080_CONTROL_SB_SIZE_SHIFT |
PL080_BSIZE_4 << PL080_CONTROL_DB_SIZE_SHIFT |
PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT |
PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT |
PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE |
PL080_CONTROL_PROT_SYS),
},
.memcpy_burst_size = PL08X_BURST_SZ_4,
.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
.memcpy_prot_buff = true,
.memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl08x_get_xfer_signal,
@@ -238,16 +232,10 @@ static const struct dma_slave_map s3c64xx_dma1_slave_map[] = {
};
struct pl08x_platform_data s3c64xx_dma1_plat_data = {
.memcpy_channel = {
.bus_id = "memcpy",
.cctl_memcpy =
(PL080_BSIZE_4 << PL080_CONTROL_SB_SIZE_SHIFT |
PL080_BSIZE_4 << PL080_CONTROL_DB_SIZE_SHIFT |
PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT |
PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT |
PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE |
PL080_CONTROL_PROT_SYS),
},
.memcpy_burst_size = PL08X_BURST_SZ_4,
.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
.memcpy_prot_buff = true,
.memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl08x_get_xfer_signal,