dmaengine: ste_dma40: Assign memcpy channels in the driver
The channels reserved for memcpy are the same for all currently
supported platforms. With this in mind, we can ease the platform
data passing requirement by moving these assignments out from
platform code and place them directly into the driver.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 1734fee..12de79e 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -55,6 +55,9 @@
#define MAX(a, b) (((a) < (b)) ? (b) : (a))
+/* Reserved event lines for memcpy only. */
+static int dma40_memcpy_channels[] = { 56, 57, 58, 59, 60 };
+
/**
* enum 40_command - The different commands and/or statuses.
*
@@ -2014,8 +2017,7 @@
if (dma_has_cap(DMA_MEMCPY, cap) && !dma_has_cap(DMA_SLAVE, cap)) {
d40c->dma_cfg = *d40c->base->plat_data->memcpy_conf_log;
d40c->dma_cfg.src_dev_type = STEDMA40_DEV_SRC_MEMORY;
- d40c->dma_cfg.dst_dev_type = d40c->base->plat_data->
- memcpy[d40c->chan.chan_id];
+ d40c->dma_cfg.dst_dev_type = dma40_memcpy_channels[d40c->chan.chan_id];
} else if (dma_has_cap(DMA_MEMCPY, cap) &&
dma_has_cap(DMA_SLAVE, cap)) {
@@ -2927,7 +2929,7 @@
}
d40_chan_init(base, &base->dma_memcpy, base->log_chans,
- base->num_log_chans, base->plat_data->memcpy_len);
+ base->num_log_chans, ARRAY_SIZE(dma40_memcpy_channels));
dma_cap_zero(base->dma_memcpy.cap_mask);
dma_cap_set(DMA_MEMCPY, base->dma_memcpy.cap_mask);
@@ -3215,7 +3217,7 @@
num_log_chans++;
base = kzalloc(ALIGN(sizeof(struct d40_base), 4) +
- (num_phy_chans + num_log_chans + plat_data->memcpy_len) *
+ (num_phy_chans + num_log_chans + ARRAY_SIZE(dma40_memcpy_channels)) *
sizeof(struct d40_chan), GFP_KERNEL);
if (base == NULL) {
@@ -3276,7 +3278,7 @@
if (!base->lookup_phy_chans)
goto failure;
- if (num_log_chans + plat_data->memcpy_len) {
+ if (num_log_chans + ARRAY_SIZE(dma40_memcpy_channels)) {
/*
* The max number of logical channels are event lines for all
* src devices and dst devices