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authorHauke Mehrtens <hauke@hauke-m.de>2012-12-05 21:46:03 +0400
committerJohn W. Linville <linville@tuxdriver.com>2012-12-06 23:58:57 +0400
commitf924e1e989b0bdaf6472668400d67a2142cb6b60 (patch)
tree7da7eb703e6c302c50bcc383f32bb576f474c595 /drivers/ssb/driver_chipcommon.c
parenta4855f39d4eb3f550ca5f4aac79bd999da42dc54 (diff)
downloadlinux-f924e1e989b0bdaf6472668400d67a2142cb6b60.tar.xz
ssb: get alp clock from devices with PMU
If there is a PMU in the device, get the alp clock from that part and do not assume 20000000. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/ssb/driver_chipcommon.c')
-rw-r--r--drivers/ssb/driver_chipcommon.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/ssb/driver_chipcommon.c b/drivers/ssb/driver_chipcommon.c
index e9d2ca11283b..603b63032e93 100644
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -280,6 +280,14 @@ static void calc_fast_powerup_delay(struct ssb_chipcommon *cc)
cc->fast_pwrup_delay = tmp;
}
+static u32 ssb_chipco_alp_clock(struct ssb_chipcommon *cc)
+{
+ if (cc->capabilities & SSB_CHIPCO_CAP_PMU)
+ return ssb_pmu_get_alp_clock(cc);
+
+ return 20000000;
+}
+
void ssb_chipcommon_init(struct ssb_chipcommon *cc)
{
if (!cc->dev)
@@ -473,12 +481,7 @@ int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
chipco_read32(cc, SSB_CHIPCO_CORECTL)
| SSB_CHIPCO_CORECTL_UARTCLK0);
} else if ((ccrev >= 11) && (ccrev != 15)) {
- /* Fixed ALP clock */
- baud_base = 20000000;
- if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
- /* FIXME: baud_base is different for devices with a PMU */
- SSB_WARN_ON(1);
- }
+ baud_base = ssb_chipco_alp_clock(cc);
div = 1;
if (ccrev >= 21) {
/* Turn off UART clock before switching clocksource. */