From e709ed70d122e94cb426b1e1f905829eae19a009 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 12 Dec 2019 08:20:10 -0800 Subject: [PATCH] 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 Signed-off-by: Tony Lindgren --- drivers/bus/ti-sysc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 563707779e18..f4d1597df0a2 100644 --- 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); -- 2.20.1