[src/trunk]: src/sys/arch/arm/ti UART frequency comes from 'clock-frequency' ...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3d86fee53b28
branches:  trunk
changeset: 827401:3d86fee53b28
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Thu Oct 26 10:56:57 2017 +0000

description:
UART frequency comes from 'clock-frequency' property here

diffstat:

 sys/arch/arm/ti/ti_com.c |  26 ++++++++------------------
 1 files changed, 8 insertions(+), 18 deletions(-)

diffs (82 lines):

diff -r bcf1f40061b7 -r 3d86fee53b28 sys/arch/arm/ti/ti_com.c
--- a/sys/arch/arm/ti/ti_com.c  Thu Oct 26 09:41:15 2017 +0000
+++ b/sys/arch/arm/ti/ti_com.c  Thu Oct 26 10:56:57 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ti_com.c,v 1.1 2017/10/26 01:16:32 jakllsch Exp $ */
+/* $NetBSD: ti_com.c,v 1.2 2017/10/26 10:56:57 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -28,7 +28,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(1, "$NetBSD: ti_com.c,v 1.1 2017/10/26 01:16:32 jakllsch Exp $");
+__KERNEL_RCSID(1, "$NetBSD: ti_com.c,v 1.2 2017/10/26 10:56:57 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -54,9 +54,6 @@
 struct ti_com_softc {
        struct com_softc ssc_sc;
        void *ssc_ih;
-
-       struct clk *ssc_clk;
-       struct fdtbus_reset *ssc_rst;
 };
 
 CFATTACH_DECL_NEW(ti_com, sizeof(struct ti_com_softc),
@@ -76,6 +73,7 @@
        struct ti_com_softc * const ssc = device_private(self);
        struct com_softc * const sc = &ssc->ssc_sc;
        struct fdt_attach_args * const faa = aux;
+       const int phandle = faa->faa_phandle;
        bus_space_handle_t bsh;
        bus_space_tag_t bst;
        char intrstr[128];
@@ -83,7 +81,7 @@
        bus_size_t size;
        int error;
 
-       if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
+       if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
                aprint_error(": couldn't get registers\n");
                return;
        }
@@ -92,19 +90,11 @@
 
        sc->sc_dev = self;
 
-       ssc->ssc_clk = fdtbus_clock_get_index(faa->faa_phandle, 0);
-       ssc->ssc_rst = fdtbus_reset_get_index(faa->faa_phandle, 0);
-
-#if 0
-       if (ssc->ssc_clk == NULL) {
-               aprint_error(": couldn't get frequency\n");
+       if (of_getprop_uint32(phandle, "clock-frequency", &sc->sc_frequency) != 0) {
+               aprint_error(": missing 'clock-frequency' property\n");
                return;
        }
 
-       sc->sc_frequency = clk_get_rate(ssc->ssc_clk);
-#else
-       sc->sc_frequency = 48000000;
-#endif
        sc->sc_type = COM_TYPE_NORMAL;
 
        error = bus_space_map(bst, addr, size, 0, &bsh);
@@ -118,12 +108,12 @@
        com_attach_subr(sc);
        aprint_naive("\n");
 
-       if (!fdtbus_intr_str(faa->faa_phandle, 0, intrstr, sizeof(intrstr))) {
+       if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
                aprint_error_dev(self, "failed to decode interrupt\n");
                return;
        }
 
-       ssc->ssc_ih = fdtbus_intr_establish(faa->faa_phandle, 0, IPL_SERIAL,
+       ssc->ssc_ih = fdtbus_intr_establish(phandle, 0, IPL_SERIAL,
            FDT_INTR_MPSAFE, comintr, sc);
        if (ssc->ssc_ih == NULL) {
                aprint_error_dev(self, "failed to establish interrupt on %s\n",