This is another try of the long gone TCSR driver needed for ipq8064 and now also ipq4019. The first (and unique) proposal for this is back in the 2015. After that only part of this got merged, to be specific a variant of this got merged to support gsbi driver on ipq8064. All the "configuration" part was never merged and without this ipq8064 SoC and ipq4019 SoC require custom patches to be configured correctly. The driver itself is really simple. A syscon driver that configure the system based on the passed bindings. All this stuff can't be moved and handled by another driver (for example dwc3) as it's global and has to be set only one (we have 2 dwc3 port for example) This is necessary for some devices (especially ipq4019 based) that require some special configuration for the internal WiFi chip memory configuration. Ansuel Smith (2): dt-bindings: soc: qcom: add qcom,tcsr bindings drivers: soc: qcom: add TCSR driver .../bindings/soc/qcom/qcom,tcsr-ipq4019.yaml | 93 ++++++++ .../bindings/soc/qcom/qcom,tcsr-ipq8064.yaml | 47 +++++ drivers/soc/qcom/Kconfig | 8 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/qcom_tcsr.c | 198 ++++++++++++++++++ 5 files changed, 347 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,tcsr-ipq4019.yaml create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,tcsr-ipq8064.yaml create mode 100644 drivers/soc/qcom/qcom_tcsr.c -- 2.33.1
