diff options
| author | Ansuel Smith <ansuelsmth@gmail.com> | 2022-02-26 14:52:29 +0100 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-03-08 16:19:31 -0600 |
| commit | 33958ad3fc02aeb06a4634e59689a9559d968e1f (patch) | |
| tree | 53dfed4f88476d9db779dfd9155350263f3862f5 /drivers/clk/qcom | |
| parent | 28aa450d38e521de45be951df052d2c49a17fae2 (diff) | |
clk: qcom: clk-rcg: add clk_rcg_floor_ops ops
Add clk_rcg_floor_ops for clock that can't provide a stable freq and
require to use a floor freq to provide the requested frequency.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Tested-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220226135235.10051-10-ansuelsmth@gmail.com
Diffstat (limited to 'drivers/clk/qcom')
| -rw-r--r-- | drivers/clk/qcom/clk-rcg.c | 24 | ||||
| -rw-r--r-- | drivers/clk/qcom/clk-rcg.h | 1 |
2 files changed, 25 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clk-rcg.c b/drivers/clk/qcom/clk-rcg.c index a9d181d6be21..88845baa7f84 100644 --- a/drivers/clk/qcom/clk-rcg.c +++ b/drivers/clk/qcom/clk-rcg.c @@ -526,6 +526,19 @@ static int clk_rcg_set_rate(struct clk_hw *hw, unsigned long rate, return __clk_rcg_set_rate(rcg, f); } +static int clk_rcg_set_floor_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_rcg *rcg = to_clk_rcg(hw); + const struct freq_tbl *f; + + f = qcom_find_freq_floor(rcg->freq_tbl, rate); + if (!f) + return -EINVAL; + + return __clk_rcg_set_rate(rcg, f); +} + static int clk_rcg_bypass_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { @@ -816,6 +829,17 @@ const struct clk_ops clk_rcg_ops = { }; EXPORT_SYMBOL_GPL(clk_rcg_ops); +const struct clk_ops clk_rcg_floor_ops = { + .enable = clk_enable_regmap, + .disable = clk_disable_regmap, + .get_parent = clk_rcg_get_parent, + .set_parent = clk_rcg_set_parent, + .recalc_rate = clk_rcg_recalc_rate, + .determine_rate = clk_rcg_determine_rate, + .set_rate = clk_rcg_set_floor_rate, +}; +EXPORT_SYMBOL_GPL(clk_rcg_floor_ops); + const struct clk_ops clk_rcg_bypass_ops = { .enable = clk_enable_regmap, .disable = clk_disable_regmap, diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h index 99efcc7f8d88..00cea508d49e 100644 --- a/drivers/clk/qcom/clk-rcg.h +++ b/drivers/clk/qcom/clk-rcg.h @@ -86,6 +86,7 @@ struct clk_rcg { }; extern const struct clk_ops clk_rcg_ops; +extern const struct clk_ops clk_rcg_floor_ops; extern const struct clk_ops clk_rcg_bypass_ops; extern const struct clk_ops clk_rcg_bypass2_ops; extern const struct clk_ops clk_rcg_pixel_ops; |