Add support for the Rockchip RK8602 and RK8603 voltage regulators.

ok dlg@

diff --git a/sys/dev/fdt/fanpwr.c b/sys/dev/fdt/fanpwr.c
index 4f828a0..0e8b35a 100644 (file)
--- a/sys/dev/fdt/fanpwr.c
+++ b/sys/dev/fdt/fanpwr.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: fanpwr.c,v 1.7 2023/04/10 04:21:20 jsg Exp $  */
+/*     $OpenBSD: fanpwr.c,v 1.8 2023/11/12 12:41:43 patrick Exp $      */
 /*
  * Copyright (c) 2018 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -44,9 +44,14 @@
 #define  TCS4525_TIME_SLEW_MASK                (0x3 << 3)
 #define  TCS4525_TIME_SLEW_SHIFT       3
 
+#define RK8602_VSEL0                   0x06
+#define RK8602_VSEL1                   0x07
+#define  RK8602_VSEL_NSEL_MASK         0xff
+
 /* Distinguish between Fairchild original and Silergy clones. */
 enum fanpwr_id {
        FANPWR_FAN53555,        /* Fairchild FAN53555 */
+       FANPWR_RK8602,          /* Rockchip RK8602 */
        FANPWR_SYR827,          /* Silergy SYR827 */
        FANPWR_SYR828,          /* Silergy SYR828 */
        FANPWR_TCS4525,         /* TCS TCS4525 */
@@ -88,6 +93,8 @@ fanpwr_match(struct device *parent, void *match, void *aux)
        struct i2c_attach_args *ia = aux;
 
        return (strcmp(ia->ia_name, "fcs,fan53555") == 0 ||
+           strcmp(ia->ia_name, "rockchip,rk8602") == 0 ||
+           strcmp(ia->ia_name, "rockchip,rk8603") == 0 ||
            strcmp(ia->ia_name, "silergy,syr827") == 0 ||
            strcmp(ia->ia_name, "silergy,syr828") == 0 ||
            strcmp(ia->ia_name, "tcs,tcs4525") == 0);
@@ -107,7 +114,11 @@ fanpwr_attach(struct device *parent, struct device *self, void *aux)
        sc->sc_tag = ia->ia_tag;
        sc->sc_addr = ia->ia_addr;
 
-       if (OF_is_compatible(node, "silergy,syr827")) {
+       if (OF_is_compatible(node, "rockchip,rk8602") ||
+           OF_is_compatible(node, "rockchip,rk8603")) {
+               printf(": RK8602");
+               sc->sc_id = FANPWR_RK8602;
+       } else if (OF_is_compatible(node, "silergy,syr827")) {
                printf(": SYR827");
                sc->sc_id = FANPWR_SYR827;
        } else if (OF_is_compatible(node, "silergy,syr828")) {
@@ -127,6 +138,12 @@ fanpwr_attach(struct device *parent, struct device *self, void *aux)
                else
                        sc->sc_vsel = TCS4525_VSEL1;
                sc->sc_vsel_nsel_mask = TCS4525_VSEL_NSEL_MASK;
+       } else if (sc->sc_id == FANPWR_RK8602) {
+               if (OF_getpropint(node, "fcs,suspend-voltage-selector", 0))
+                       sc->sc_vsel = RK8602_VSEL0;
+               else
+                       sc->sc_vsel = RK8602_VSEL1;
+               sc->sc_vsel_nsel_mask = RK8602_VSEL_NSEL_MASK;
        } else {
                if (OF_getpropint(node, "fcs,suspend-voltage-selector", 0))
                        sc->sc_vsel = FAN53555_VSEL0;
@@ -173,6 +190,10 @@ fanpwr_attach(struct device *parent, struct device *self, void *aux)
                        return;
                }
                break;
+       case FANPWR_RK8602:
+               sc->sc_vbase = 500000;
+               sc->sc_vstep = 6250;
+               break;
        case FANPWR_SYR827:
        case FANPWR_SYR828:
                sc->sc_vbase = 712500;