Re: [PATCH] dmaengine: ti: k3-psil-j721s2: Add entry for CSI2RX

From: Kumar, Udit
Date: Sun Jan 28 2024 - 00:00:52 EST


Thanks Vaishnav

On 1/25/2024 4:44 PM, Vaishnav Achath wrote:
The CSI2RX subsystem uses PSI-L DMA to transfer frames to memory. It can
have up to 32 threads per instance. J721S2 has two instances of the
subsystem, so there are 64 threads total, Add them to the endpoint map.

Signed-off-by: Vaishnav Achath <vaishnav.a@xxxxxx>
---
Tested on J721S2 EVM on 6.8.0-rc1-next-20240124 for CSI2RX capture with
OV5640: https://gist.github.com/vaishnavachath/e6918ae4dadeb34c4cbad515bffcc558

drivers/dma/ti/k3-psil-j721s2.c | 73 +++++++++++++++++++++++++++++++++
1 file changed, 73 insertions(+)

diff --git a/drivers/dma/ti/k3-psil-j721s2.c b/drivers/dma/ti/k3-psil-j721s2.c
index 1d5430fc5724..ba08bdcdcd2b 100644
--- a/drivers/dma/ti/k3-psil-j721s2.c
+++ b/drivers/dma/ti/k3-psil-j721s2.c
@@ -57,6 +57,14 @@
}, \
}
+#define PSIL_CSI2RX(x) \
+ { \
+ .thread_id = x, \
+ .ep_config = { \
+ .ep_type = PSIL_EP_NATIVE, \
+ }, \
+ }
+
/* PSI-L source thread IDs, used for RX (DMA_DEV_TO_MEM) */
static struct psil_ep j721s2_src_ep_map[] = {
/* PDMA_MCASP - McASP0-4 */
@@ -114,6 +122,71 @@ static struct psil_ep j721s2_src_ep_map[] = {
PSIL_PDMA_XY_PKT(0x4707),
PSIL_PDMA_XY_PKT(0x4708),
PSIL_PDMA_XY_PKT(0x4709),
+ /* CSI2RX */
+ PSIL_CSI2RX(0x4940),
+ PSIL_CSI2RX(0x4941),
+ PSIL_CSI2RX(0x4942),
+ PSIL_CSI2RX(0x4943),
+ PSIL_CSI2RX(0x4944),
+ PSIL_CSI2RX(0x4945),
+ PSIL_CSI2RX(0x4946),
+ PSIL_CSI2RX(0x4947),
+ PSIL_CSI2RX(0x4948),
+ PSIL_CSI2RX(0x4949),

Reviewed-by: Udit Kumar <u-kumar1@xxxxxx>


+ PSIL_CSI2RX(0x494a),
+ PSIL_CSI2RX(0x494b),
[..]