bus: ti-sysc: Fix missing reset delay handling

We have dts property for "ti,sysc-delay-us", and we're using it, but the
wait after OCP softreset only happens if devices are probed in legacy mode.

Let's add a delay after writing the OCP softreset when specified.

Fixes: e0db94fe87da ("bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits")
Cc: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 563707779e1889835aac0fe9a571ef32962e17b8..f4d1597df0a27152dc80bee29e7d2820abebcdc2 100644 (file)
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1584,6 +1584,10 @@ static int sysc_reset(struct sysc *ddata)
        sysc_val |= sysc_mask;
        sysc_write(ddata, sysc_offset, sysc_val);
 
+       if (ddata->cfg.srst_udelay)
+               usleep_range(ddata->cfg.srst_udelay,
+                            ddata->cfg.srst_udelay * 2);
+
        if (ddata->clk_enable_quirk)
                ddata->clk_enable_quirk(ddata);