Commit 33958ad3 authored by Christian Marangi's avatar Christian Marangi Committed by Bjorn Andersson
Browse files

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: default avatarAnsuel Smith <ansuelsmth@gmail.com>
Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: default avatarStephen Boyd <sboyd@kernel.org>
Tested-by: default avatarJonathan McDowell <noodles@earth.li>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220226135235.10051-10-ansuelsmth@gmail.com
parent 28aa450d

drivers/clk/qcom/clk-rcg.c

+24 −0
Original line number Diff line number Diff line
@@ -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,

drivers/clk/qcom/clk-rcg.h

+1 −0
Original line number Diff line number Diff line
@@ -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;