Hi Naman, On 2017-07-24 22:43:06 +0530, Naman Jain wrote: > On Mon, Jul 24, 2017 at 3:11 PM, Niklas Söderlund > <niklas.soderlund@xxxxxxxxxxxx> wrote: > > Hi Naman, > > > > On 2017-07-24 14:30:52 +0530, Naman Jain wrote: > >> i am using renesas soc with video decoder adv7281m > >> i have done thr device tree configuration by following dt bindings > >> i am getting timeout of reading the phy clock lane, after i start streaming > >> and nothing is displayed on the screen > >> kindly help me in configuration > > > > To be able to try and help you I would need a lot more information. For > > starters: > > > > - Which kernel version are you using? > > > > - How dose the device tree nodes for VIN and ADV7281m look like? > > > > -- > > Regards, > > Niklas Söderlund > > Hi Niklas, > > I am using kernel version - 4.9 The VIN driver which supports CSI-2 and the R-Car CSI-2 driver is not a part of the upstream kernel yet, and the latest patches with contains the most fixes are based on newer kernels then v4.9. So I assume you are using a BSP of some sort, if possible could you tell me which one? If you want to try with later increments of the VIN and CSI-2 patches please see: http://elinux.org/R-Car/Tests:rcar-vin > > following is the device tree configuration : > > &i2c6 { > status = "okay"; > clock-frequency = <400000>; > adv7281m@21{ > compatible = "adi,adv7281-m"; > reg = <0x20>; > interrupt-parent = <&gpio6>; > interrupts = <4 IRQ_TYPE_LEVEL_LOW> > adv7281m_out: endpoint { > clock-lanes = <0>; > data-lanes = <1>; > remote-endpoint = <&csi20_in>; > }; > }; > > } > > &csi20 { > status = "okay"; > ports { > #address-cells = <1>; > #size-cells = <0>; > > port@0 { > reg = <0>; > csi20_in: endpoint { > clock-lanes = <0>; > data-lanes = <1>; > virtual-channel-number=<0>; This is interesting for me, I have not worked with any driver for the R-Car CSI-2 driver which understands the virtual-channel-number property. > remote-endpoint = > <&adv7281m_out>; > }; > }; > }; > }; > > &vin0 { > status = "okay"; > }; > > &vin1 { > status = "okay"; > }; > > &vin2 { > status = "okay"; > }; > > &vin3 { > status = "okay"; > }; > > &vin4 { > status = "okay"; > }; > > &vin5 { > status = "okay"; > }; > > &vin6 { > status = "okay"; > }; > > &vin7 { > status = "okay"; > }; -- Regards, Niklas Söderlund
