Add pclk-max-frequency property in parallel port endpoint in order to inform sensor of the maximum pixel clock frequency admissible by camera interface that is connected on. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Change-Id: I7bb7f8c5d95af6b19ace97a434ade2dae5d29dd6 Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/299249 ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com> ACI: CIBUILD <MDG-smet-aci-builds@list.st.com> Tested-by: Alain VOLMAT <alain.volmat@foss.st.com> Reviewed-by: Alain VOLMAT <alain.volmat@foss.st.com> Reviewed-by: Philippe CORNU <philippe.cornu@foss.st.com> Domain-Review: Philippe CORNU <philippe.cornu@foss.st.com>