ARM: DTS: dra72-evm: Add radio entry

Add the DT for the radio which uses a helper driver to get
the resources needed by the DSP (mostly McASP2 and GPIO).

There are two possibilities for radio rendering:

* ARM rendering: Radio audio is sent to the ARM side and
  rendered through McASP3

* DSP rendering: The DSP side directly renders through
  McASP6. In this case, the ARM side only takes care of
  requesting the required PM resources for McASP6

Change-Id: Ie299be76f96d5232568fa8cec855b8a075e36ab1
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 1dbfc240e489..1271fd92c822 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -155,6 +155,14 @@
                         "LINE1L",               "Line In",
                         "LINE1R",               "Line In";
         };
+
+        radio {
+                compatible = "ti,dra7xx_radio";
+                gpios = <&gpio6 20 0>;
+
+                pinctrl-names = "default";
+                pinctrl-0 = <&radio_pins>;
+        };
 };
 
 &dra7_pmx_core {
@@ -311,6 +319,21 @@
                 >;
         };
 
+        mcasp2_pins: pinmux_mcasp2_pins {
+                pinctrl-single,pins = <
+                        0x02F4 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_aclkx */
+                        0x02F8 (PIN_INPUT_SLEW | MUX_MODE0)     /* mcasp2_afsx */
+                        0x0304 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_axr0 */
+                        0x0308 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_axr1 */
+                        0x030C (PIN_INPUT_SLEW | MUX_MODE0)     /* mcasp2_axr2 */
+                        0x0310 (PIN_INPUT_SLEW | MUX_MODE0)     /* mcasp2_axr3 */
+                        0x0314 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_axr4 */
+                        0x0318 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_axr5 */
+                        0x031c (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_axr6 */
+                        0x0320 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp2_axr7 */
+                >;
+        };
+
         mcasp3_pins: pinmux_mcasp3_pins {
                 pinctrl-single,pins = <
                         0x324 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp3_aclkx */
@@ -329,6 +352,15 @@
                 >;
         };
 
+        mcasp6_pins: pinmux_mcasp6_pins {
+                pinctrl-single,pins = <
+                        0x2d4 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mcasp6_axr0 */
+                        0x2d8 (PIN_INPUT_PULLDOWN | MUX_MODE1)  /* mcasp6_axr1 */
+                        0x2dc (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mcasp6_clkx */
+                        0x2e0 (PIN_INPUT_PULLDOWN | MUX_MODE1)  /* mcasp6_fsx */
+                >;
+        };
+
         usb1_pins: pinmux_usb1_pins {
                 pinctrl-single,pins = <
                         0x280 (PIN_INPUT_SLEW | MUX_MODE0) /* usb1_drvvbus */
@@ -372,6 +404,14 @@
                         0x418   (MUX_MODE15)    /* wakeup0.off */
                 >;
         };
+
+        radio_pins: pinmux_radio_pins {
+                pinctrl-single,pins = <
+                        0x0334 (PIN_INPUT | MUX_MODE4)          /* i2c4_sda */
+                        0x0338 (PIN_INPUT | MUX_MODE4)          /* i2c4_scl */
+                        0x02A0 (PIN_INPUT | MUX_MODE14)         /* gpio6_20 */
+                >;
+        };
 };
 
 &i2c1 {
@@ -817,12 +857,33 @@
 
         status = "okay";
 
+        atl1 {
+                bws = <DRA7_ATL_WS_MCASP2_FSX>;
+                aws = <DRA7_ATL_WS_MCASP6_FSX>;
+        };
+
         atl2 {
                 bws = <DRA7_ATL_WS_MCASP2_FSX>;
                 aws = <DRA7_ATL_WS_MCASP3_FSX>;
         };
 };
 
+&mcasp2 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&mcasp2_pins>;
+
+        fck_parent = "atl_clkin2_ck";
+
+        status = "okay";
+
+        op-mode = <0>;  /* MCASP_IIS_MODE */
+        tdm-slots = <2>;
+        /* 8 serializer */
+        serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+                1 1 1 1 1 1 1 1
+        >;
+};
+
 &mcasp3 {
         pinctrl-names = "default", "sleep";
         pinctrl-0 = <&mcasp3_pins>;
@@ -840,6 +901,24 @@
         >;
 };
 
+&mcasp6 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&mcasp6_pins>;
+
+        fck_parent = "atl_clkin1_ck";
+
+        status = "okay";
+
+        op-mode = <0>;  /* MCASP_IIS_MODE */
+        tdm-slots = <8>;
+        /* 4 serializer */
+        serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+                1 2 0 0
+        >;
+        tx-num-evt = <8>;
+        rx-num-evt = <8>;
+};
+
 &omap_dwc3_1 {
         extcon = <&extcon1>;
 };