Domicile state is TX, but work remotely in CA for TX company. How would this affect tax filing rules?

I reside in TX and work for a company in TX but occasionally work remotely for the same company while visiting family (around 15 days in the year) in CA. Are there any CA state income tax or additional tax withholding impacts in this scenario, or would I continue to file my taxes for TX only (i.e. no state income tax impact) since I'm not physically working at any company office in CA and working for less than 183 days from CA?