summaryrefslogtreecommitdiff
path: root/include/linux/platform_data/dma-ste-dma40.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/platform_data/dma-ste-dma40.h')
-rw-r--r--include/linux/platform_data/dma-ste-dma40.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/platform_data/dma-ste-dma40.h b/include/linux/platform_data/dma-ste-dma40.h
index 9ff93b065686..833cb959f3df 100644
--- a/include/linux/platform_data/dma-ste-dma40.h
+++ b/include/linux/platform_data/dma-ste-dma40.h
@@ -147,6 +147,9 @@ struct stedma40_chan_cfg {
* @memcpy_conf_log: default configuration of logical channel memcpy
* @disabled_channels: A vector, ending with -1, that marks physical channels
* that are for different reasons not available for the driver.
+ * @num_of_phy_chans: The number of physical channels implemented in HW.
+ * 0 means reading the number of channels from DMA HW but this is only valid
+ * for 'multiple of 4' channels, like 8.
*/
struct stedma40_platform_data {
u32 dev_len;
@@ -158,6 +161,7 @@ struct stedma40_platform_data {
struct stedma40_chan_cfg *memcpy_conf_log;
int disabled_channels[STEDMA40_MAX_PHYS];
bool use_esram_lcla;
+ int num_of_phy_chans;
};
#ifdef CONFIG_STE_DMA40