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| author | Tony Lindgren <tony@atomide.com> | 2019-12-12 08:20:10 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-12 12:21:27 +0100 |
| commit | 6a64fb7d278ffc4baf4f93b61cec1b6cd59512ae (patch) | |
| tree | 78192eb07993dad1bcb18ca407b3a31be525f9c4 /drivers/bus | |
| parent | d05d4ad89d8e0c2d737c1e88ab9dfc51d2d1ebee (diff) | |
| download | linux-stable-6a64fb7d278ffc4baf4f93b61cec1b6cd59512ae.tar.gz linux-stable-6a64fb7d278ffc4baf4f93b61cec1b6cd59512ae.tar.bz2 linux-stable-6a64fb7d278ffc4baf4f93b61cec1b6cd59512ae.zip | |
bus: ti-sysc: Fix missing reset delay handling
[ Upstream commit e709ed70d122e94cb426b1e1f905829eae19a009 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 2b6670daf7fc..34bd9bf4e68a 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -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); |