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bus: ti-sysc: Fix missing reset delay handling 

[ Upstream commit e709ed70d1 ]

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: e0db94fe87 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Tony Lindgren 2019-12-12 08:20:10 -08:00 committed by Greg Kroah-Hartman
parent d05d4ad89d
commit 6a64fb7d27
1 changed files with 4 additions and 0 deletions
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4
drivers/bus/ti-sysc.c
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@ -1594,6 +1594,10 @@ 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);