diff options
| author |   Lubomir Rintel <lkundrak@v3.sk> | 2020-05-20 00:41:40 +0200 |
|---|---|---|
| committer |   Stephen Boyd <sboyd@kernel.org> | 2020-05-27 17:55:11 -0700 |
| commit | 5278acc4418bad18ed677952ca7cd56ce312a87d (patch) | |
| tree | 45e6b8f13c04eca2efedb462f59bdc1e706b491c /drivers/clk | |
| parent | clk: mmp: frac: Do not lose last 4 digits of precision (diff) | |
| download | linux-dev-5278acc4418bad18ed677952ca7cd56ce312a87d.tar.xz linux-dev-5278acc4418bad18ed677952ca7cd56ce312a87d.zip | |
clk: mmp: frac: Allow setting bits other than the numerator/denominator
For the I2S fractional clocks, there are more bits that need to be set
for the clock to run. Their actual meaning is unknown.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lkml.kernel.org/r/20200519224151.2074597-3-lkundrak@v3.sk
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/mmp/clk-frac.c | 3 | ||||
| -rw-r--r-- | drivers/clk/mmp/clk.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c index ed9928f5bdc7..48f592bd633d 100644 --- a/drivers/clk/mmp/clk-frac.c +++ b/drivers/clk/mmp/clk-frac.c @@ -148,7 +148,10 @@ static int clk_factor_init(struct clk_hw *hw) val &= ~(masks->den_mask << masks->den_shift); val |= (factor->ftbl[0].den & masks->den_mask) << masks->den_shift; + } + if (!(val & masks->enable_mask) || i >= factor->ftbl_cnt) { + val |= masks->enable_mask; writel(val, factor->base); } diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index 971b4d6d992f..0efd5b0b2f01 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -16,6 +16,7 @@ struct mmp_clk_factor_masks { unsigned int den_mask; unsigned int num_shift; unsigned int den_shift; + unsigned int enable_mask; }; struct mmp_clk_factor_tbl { |