diff options
| author | Leo Yan <leo.yan@linaro.org> | 2017-01-21 10:26:31 +0800 |
|---|---|---|
| committer | Stephen Boyd <sboyd@codeaurora.org> | 2017-01-26 16:18:34 -0800 |
| commit | 55da97e38cab844682abb71400a908b871d0054c (patch) | |
| tree | 2803c0d3fa402c7d577d294761a2ba4cd1815511 /drivers/clk | |
| parent | de9b5a24047d50490ff58428bd1dc8bc4b63a225 (diff) | |
| download | linux-55da97e38cab844682abb71400a908b871d0054c.tar.bz2 | |
clk: hisilicon: fix lock assignment
In clock driver initialize phase the spinlock is missed to assignment
to struct clkgate_separated, finally there have no locking to protect
exclusive accessing for clock registers.
This bug introduces the console has no output after enable coresight
driver on 96boards Hikey; this is because console using UART3, which
has shared the same register with coresight clock enabling bit. After
applied this patch it can assign lock properly to protect exclusive
accessing, and console can work well after enabled coresight modules.
Fixes: 0aa0c95f743a ("clk: hisilicon: add common clock support")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/hisilicon/clkgate-separated.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clk/hisilicon/clkgate-separated.c b/drivers/clk/hisilicon/clkgate-separated.c index a47812f56a17..7908bc3c9ec7 100644 --- a/drivers/clk/hisilicon/clkgate-separated.c +++ b/drivers/clk/hisilicon/clkgate-separated.c @@ -120,6 +120,7 @@ struct clk *hisi_register_clkgate_sep(struct device *dev, const char *name, sclk->bit_idx = bit_idx; sclk->flags = clk_gate_flags; sclk->hw.init = &init; + sclk->lock = lock; clk = clk_register(dev, &sclk->hw); if (IS_ERR(clk)) |