From: Jai Luthra <j-luthra@ti.com>
To: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Vaishnav Achath <vaishnav.a@ti.com>,
Maxime Ripard <mripard@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: <linux-media@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
Aradhya Bhatia <a-bhatia1@ti.com>,
Devarsh Thakkar <devarsht@ti.com>,
Changhuang Liang <changhuang.liang@starfivetech.com>,
Jack Zhu <jack.zhu@starfivetech.com>,
Julien Massot <julien.massot@collabora.com>,
Jayshri Pawar <jpawar@cadence.com>, Jai Luthra <j-luthra@ti.com>
Subject: [PATCH RFC 04/21] dt-bindings: media: ti,j721e-csi2rx-shim: Support 32 dma chans
Date: Thu, 22 Feb 2024 17:01:20 +0530 [thread overview]
Message-ID: <20240222-multistream-v1-4-1837ed916eeb@ti.com> (raw)
In-Reply-To: <20240222-multistream-v1-0-1837ed916eeb@ti.com>
The CSI2RX SHIM IP can support a maximum of 32x DMA channels.
These can be used to split incoming "streams" of data on the CSI-RX
port, distinguished by MIPI Virtual Channel (or Data Type), into
different locations in memory (/dev/videoX nodes).
Actual number of DMA channels reserved is different for each SoC
integrating this IP, but a maximum of 32x channels are always available
in this IP's register space, so set minimum as 1 and maximum as 32.
Link: https://www.ti.com/lit/pdf/spruiv7
Signed-off-by: Jai Luthra <j-luthra@ti.com>
---
.../bindings/media/ti,j721e-csi2rx-shim.yaml | 40 ++++++++++++++++++++--
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml b/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml
index f762fdc05e4d..e47dab7b959e 100644
--- a/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml
+++ b/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml
@@ -20,11 +20,45 @@ properties:
const: ti,j721e-csi2rx-shim
dmas:
- maxItems: 1
+ minItems: 1
+ maxItems: 32
dma-names:
+ minItems: 1
+ maxItems: 32
items:
- const: rx0
+ - const: rx1
+ - const: rx2
+ - const: rx3
+ - const: rx4
+ - const: rx5
+ - const: rx6
+ - const: rx7
+ - const: rx8
+ - const: rx9
+ - const: rx10
+ - const: rx11
+ - const: rx12
+ - const: rx13
+ - const: rx14
+ - const: rx15
+ - const: rx16
+ - const: rx17
+ - const: rx18
+ - const: rx19
+ - const: rx20
+ - const: rx21
+ - const: rx22
+ - const: rx23
+ - const: rx24
+ - const: rx25
+ - const: rx26
+ - const: rx27
+ - const: rx28
+ - const: rx29
+ - const: rx30
+ - const: rx31
reg:
maxItems: 1
@@ -62,8 +96,8 @@ examples:
ti_csi2rx0: ticsi2rx@4500000 {
compatible = "ti,j721e-csi2rx-shim";
- dmas = <&main_udmap 0x4940>;
- dma-names = "rx0";
+ dmas = <&main_udmap 0x4940>, <&main_udmap 0x4941>;
+ dma-names = "rx0", "rx1";
reg = <0x4500000 0x1000>;
power-domains = <&k3_pds 26 TI_SCI_PD_EXCLUSIVE>;
#address-cells = <1>;
--
2.43.0
next prev parent reply other threads:[~2024-02-22 11:33 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-22 11:31 [PATCH RFC 00/21] media: cadence,ti: CSI2RX Multistream Support Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 01/21] media: ti: j721e-csi2rx: Fix races while restarting DMA Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 02/21] media: cadence: csi2rx: configure DPHY before starting source stream Jai Luthra
2024-02-22 14:29 ` Julien Massot
2024-02-23 7:23 ` Jai Luthra
2024-02-23 2:46 ` 回复: " Changhuang Liang
2024-02-22 11:31 ` [PATCH RFC 03/21] media: cadence: csi2rx: Support runtime PM Jai Luthra
2024-03-22 9:26 ` 回复: " Changhuang Liang
2024-03-22 11:13 ` Jai Luthra
2024-02-22 11:31 ` Jai Luthra [this message]
2024-02-22 12:25 ` [PATCH RFC 04/21] dt-bindings: media: ti,j721e-csi2rx-shim: Support 32 dma chans Rob Herring
2024-02-23 7:44 ` Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 05/21] media: ti: j721e-csi2rx: separate out device and context Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 06/21] media: ti: j721e-csi2rx: prepare SHIM code for multiple contexts Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 07/21] media: ti: j721e-csi2rx: allocate DMA channel based on context index Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 08/21] media: ti: j721e-csi2rx: add a subdev for the core device Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 09/21] SQUASH: media: ti: j721e-csi2rx: Fix link validation for multi-stream Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 10/21] media: ti: j721e-csi2rx: get number of contexts from device tree Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 11/21] media: cadence: csi2rx: add get_frame_desc wrapper Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 12/21] media: ti: j721e-csi2rx: add support for processing virtual channels Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 13/21] media: cadence: csi2rx: Use new enable stream APIs Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 14/21] media: cadence: csi2rx: Enable stream-wise routing Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 15/21] SQUASH: media: cadence: csi2rx: Enable per-stream controls Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 16/21] SQUASH: media: cadence: csi2rx: Filter using MIPI virtual channels Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 17/21] SQUASH: media: cadence: csi2rx: Filter streams in get_frame_desc Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 18/21] media: ti: j721e-csi2rx: add multistream support Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 19/21] SQUASH: media: ti: j721e-csi2rx: Enable per-stream controls Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 20/21] SQUASH: media: ti: j721e-csi2rx: Assert pixel reset before stopping last stream Jai Luthra
2024-02-22 11:31 ` [PATCH RFC 21/21] media: ti: j721e-csi2rx: Submit all available buffers Jai Luthra
2024-02-23 2:53 ` 回复: [PATCH RFC 00/21] media: cadence,ti: CSI2RX Multistream Support Changhuang Liang
2024-02-23 7:49 ` Jai Luthra
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