Re: [PATCH v2 02/18] arm64: dts: ti: k3-j721e-main: Add multiple channels for CSI2RX DMA
"Kumar, Udit" <[email protected]>
| Newsgroups | dev.linux.lists.imx,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On 7/13/2026 5:04 PM, Yemike Abhilash Chandra wrote: > From: Vaishnav Achath <[email protected]> > > J721E CSI2RX SHIM layer can support up to 32 DMA channel contexts. Add > additional DMA channels to enable multistream support for CSI2RX. > If hardware supports 32 channel, then why you are limiting to 16 channels only ? > Signed-off-by: Vaishnav Achath <[email protected]> > Signed-off-by: Yemike Abhilash Chandra <[email protected]> > --- > arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 20 ++++++++++++++++---- > 1 file changed, 16 insertions(+), 4 deletions(-) > > diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi > index 5a8414fc5751..b1988437f52d 100644 > --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi > @@ -600,8 +600,14 @@ ti_csi2rx0: ticsi2rx@4500000 { > ranges; > #address-cells = <2>; > #size-cells = <2>; > - dmas = <&main_udmap 0x4940>; > - dma-names = "rx0"; > + dmas = <&main_udmap 0x4940>, <&main_udmap 0x4941>, <&main_udmap 0x4942>, > + <&main_udmap 0x4943>, <&main_udmap 0x4944>, <&main_udmap 0x4945>, > + <&main_udmap 0x4946>, <&main_udmap 0x4947>, <&main_udmap 0x4948>, > + <&main_udmap 0x4949>, <&main_udmap 0x494a>, <&main_udmap 0x494b>, > + <&main_udmap 0x494c>, <&main_udmap 0x494d>, <&main_udmap 0x494e>, > + <&main_udmap 0x494f>; > + dma-names = "rx0", "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", > + "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", "rx14", "rx15"; > power-domains = <&k3_pds 26 TI_SCI_PD_EXCLUSIVE>; > status = "disabled"; > > @@ -656,8 +662,14 @@ ti_csi2rx1: ticsi2rx@4510000 { > ranges; > #address-cells = <2>; > #size-cells = <2>; > - dmas = <&main_udmap 0x4960>; > - dma-names = "rx0"; > + dmas = <&main_udmap 0x4960>, <&main_udmap 0x4961>, <&main_udmap 0x4962>, > + <&main_udmap 0x4963>, <&main_udmap 0x4964>, <&main_udmap 0x4965>, > + <&main_udmap 0x4966>, <&main_udmap 0x4967>, <&main_udmap 0x4968>, > + <&main_udmap 0x4969>, <&main_udmap 0x496a>, <&main_udmap 0x496b>, > + <&main_udmap 0x496c>, <&main_udmap 0x496d>, <&main_udmap 0x496e>, > + <&main_udmap 0x496f>; > + dma-names = "rx0", "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", > + "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", "rx14", "rx15"; > power-domains = <&k3_pds 27 TI_SCI_PD_EXCLUSIVE>; > status = "disabled"; >