| Qualcomm Technologies MDSS pll for DSI/EDP/HDMI |
| |
| mdss-pll is a pll controller device which supports pll devices that |
| are compatible with MIPI display serial interface specification, |
| HDMI and edp. |
| |
| Required properties: |
| - compatible: Compatible name used in the driver |
| "qcom,mdss_dsi_pll_8916", "qcom,mdss_dsi_pll_8939", |
| "qcom,mdss_dsi_pll_8974", "qcom,mdss_dsi_pll_8994", |
| "qcom,mdss_dsi_pll_8994", "qcom,mdss_dsi_pll_8909", |
| "qcom,mdss_hdmi_pll", "qcom,mdss_hdmi_pll_8994", |
| "qcom,mdss_dsi_pll_8992", "qcom,mdss_hdmi_pll_8992", |
| "qcom,mdss_dsi_pll_8996", "qcom,mdss_hdmi_pll_8996", |
| "qcom,mdss_hdmi_pll_8996_v2", "qcom,mdss_dsi_pll_8996_v2", |
| "qcom,mdss_hdmi_pll_8996_v3", "qcom,mdss_hdmi_pll_8996_v3_1p8", |
| "qcom,mdss_edp_pll_8996_v3", "qcom,mdss_edp_pll_8996_v3_1p8", |
| "qcom,mdss_dsi_pll_10nm", "qcom,mdss_dp_pll_8998", |
| "qcom,mdss_hdmi_pll_8998" |
| - cell-index: Specifies the controller used |
| - reg: offset and length of the register set for the device. |
| - reg-names : names to refer to register sets related to this device |
| - gdsc-supply: Phandle for gdsc regulator device node. |
| - vddio-supply: Phandle for vddio regulator device node. |
| - clocks: List of Phandles for clock device nodes |
| needed by the device. |
| - clock-names: List of clock names needed by the device. |
| - clock-rate: List of clock rates in Hz. |
| |
| Optional properties: |
| - label: A string used to describe the driver used. |
| - vcca-supply: Phandle for vcca regulator device node. |
| |
| |
| - qcom,dsi-pll-ssc-en: Boolean property to indicate that ssc is enabled. |
| - qcom,dsi-pll-ssc-mode: Spread-spectrum clocking. It can be either "down-spread" |
| or "center-spread". Default is "down-spread" if it is not specified. |
| - qcom,ssc-frequency-hz: Integer property to specify the spread frequency |
| to be programmed for the SSC. |
| - qcom,ssc-ppm: Integer property to specify the Parts per Million |
| value of SSC. |
| |
| - qcom,platform-supply-entries: A node that lists the elements of the supply. There |
| can be more than one instance of this binding, |
| in which case the entry would be appended with |
| the supply entry index. |
| e.g. qcom,platform-supply-entry@0 |
| - reg: offset and length of the register set for the device. |
| -- qcom,supply-name: name of the supply (vdd/vdda/vddio) |
| -- qcom,supply-min-voltage: minimum voltage level (uV) |
| -- qcom,supply-max-voltage: maximum voltage level (uV) |
| -- qcom,supply-enable-load: load drawn (uA) from enabled supply |
| -- qcom,supply-disable-load: load drawn (uA) from disabled supply |
| -- qcom,supply-pre-on-sleep: time to sleep (ms) before turning on |
| -- qcom,supply-post-on-sleep: time to sleep (ms) after turning on |
| -- qcom,supply-pre-off-sleep: time to sleep (ms) before turning off |
| -- qcom,supply-post-off-sleep: time to sleep (ms) after turning off |
| |
| Example: |
| mdss_dsi0_pll: qcom,mdss_dsi_pll@fd922A00 { |
| compatible = "qcom,mdss_dsi_pll_8974"; |
| label = "MDSS DSI 0 PLL"; |
| cell-index = <0>; |
| |
| reg = <0xfd922A00 0xD4>, |
| <0xfd922900 0x64>, |
| <0xfd8c2300 0x8>; |
| reg-names = "pll_base", "dynamic_pll_base", "gdsc_base"; |
| gdsc-supply = <&gdsc_mdss>; |
| vddio-supply = <&pm8941_l12>; |
| vcca-supply = <&pm8941_l28>; |
| |
| clocks = <&clock_gcc clk_gcc_mdss_mdp_clk>, |
| <&clock_gcc clk_gcc_mdss_ahb_clk>, |
| <&clock_gcc clk_gcc_mdss_axi_clk>; |
| clock-names = "mdp_core_clk", "iface_clk", "bus_clk"; |
| clock-rate = <0>, <0>, <0>; |
| |
| qcom,dsi-pll-slave; |
| qcom,dsi-pll-ssc-en; |
| qcom,dsi-pll-ssc-mode = "down-spread"; |
| qcom,ssc-frequency-hz = <30000>; |
| qcom,ssc-ppm = <5000>; |
| |
| qcom,platform-supply-entries { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| qcom,platform-supply-entry@0 { |
| reg = <0>; |
| qcom,supply-name = "vddio"; |
| qcom,supply-min-voltage = <1800000>; |
| qcom,supply-max-voltage = <1800000>; |
| qcom,supply-enable-load = <100000>; |
| qcom,supply-disable-load = <100>; |
| qcom,supply-pre-on-sleep = <0>; |
| qcom,supply-post-on-sleep = <20>; |
| qcom,supply-pre-off-sleep = <0>; |
| qcom,supply-post-off-sleep = <0>; |
| }; |
| }; |
| }; |
| |