0001 Nokia modem client bindings
0002
0003 The Nokia modem HSI client follows the common HSI client binding
0004 and inherits all required properties. The following additional
0005 properties are needed by the Nokia modem HSI client:
0006
0007 Required properties:
0008 - compatible: Should be one of
0009 "nokia,n900-modem"
0010 "nokia,n950-modem"
0011 "nokia,n9-modem"
0012 - hsi-channel-names: Should contain the following strings
0013 "mcsaab-control"
0014 "speech-control"
0015 "speech-data"
0016 "mcsaab-data"
0017 - gpios: Should provide a GPIO handler for each GPIO listed in
0018 gpio-names
0019 - gpio-names: Should contain the following strings
0020 "cmt_apeslpx" (for n900, n950, n9)
0021 "cmt_rst_rq" (for n900, n950, n9)
0022 "cmt_en" (for n900, n950, n9)
0023 "cmt_rst" (for n900)
0024 "cmt_bsi" (for n900)
0025 - interrupts: Should be IRQ handle for modem's reset indication
0026
0027 Example:
0028
0029 &ssi_port {
0030 modem: hsi-client {
0031 compatible = "nokia,n900-modem";
0032
0033 pinctrl-names = "default";
0034 pinctrl-0 = <&modem_pins>;
0035
0036 hsi-channel-ids = <0>, <1>, <2>, <3>;
0037 hsi-channel-names = "mcsaab-control",
0038 "speech-control",
0039 "speech-data",
0040 "mcsaab-data";
0041 hsi-speed-kbps = <55000>;
0042 hsi-mode = "frame";
0043 hsi-flow = "synchronized";
0044 hsi-arb-mode = "round-robin";
0045
0046 interrupts-extended = <&gpio3 8 IRQ_TYPE_EDGE_FALLING>; /* 72 */
0047
0048 gpios = <&gpio3 6 GPIO_ACTIVE_HIGH>, /* 70 */
0049 <&gpio3 9 GPIO_ACTIVE_HIGH>, /* 73 */
0050 <&gpio3 10 GPIO_ACTIVE_HIGH>, /* 74 */
0051 <&gpio3 11 GPIO_ACTIVE_HIGH>, /* 75 */
0052 <&gpio5 29 GPIO_ACTIVE_HIGH>; /* 157 */
0053 gpio-names = "cmt_apeslpx",
0054 "cmt_rst_rq",
0055 "cmt_en",
0056 "cmt_rst",
0057 "cmt_bsi";
0058 };
0059 };
