| Message ID | 20241024-starqltechn_integration_upstream-v7-1-78eaf21ecee9@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add divisor computation feature for sdm845 gp clocks | expand |
Quoting Dzmitry Sankouski (2024-10-24 03:13:09) > diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c > index bf26c5448f00..0fc23a87b432 100644 > --- a/drivers/clk/qcom/clk-rcg2.c > +++ b/drivers/clk/qcom/clk-rcg2.c > @@ -153,7 +153,14 @@ static int clk_rcg2_set_parent(struct clk_hw *hw, u8 index) > * > * parent_rate m > * rate = ----------- x --- > - * hid_div n > + * pre_div n > + * > + * @param rate - Parent rate. > + * @param m - Multiplier. > + * @param n - Divisor. > + * @param mode - Use zero to ignore m/n calculation. > + * @param hid_div - Pre divisor register value. Pre divisor value > + * relates to hid_div as pre_div = (hid_div + 1) / 2 Can you use kernel-doc instead? Then our tooling can easily extract it. > */ > static unsigned long > calc_rate(unsigned long rate, u32 m, u32 n, u32 mode, u32 hid_div) >
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index bf26c5448f00..0fc23a87b432 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -153,7 +153,14 @@ static int clk_rcg2_set_parent(struct clk_hw *hw, u8 index) * * parent_rate m * rate = ----------- x --- - * hid_div n + * pre_div n + * + * @param rate - Parent rate. + * @param m - Multiplier. + * @param n - Divisor. + * @param mode - Use zero to ignore m/n calculation. + * @param hid_div - Pre divisor register value. Pre divisor value + * relates to hid_div as pre_div = (hid_div + 1) / 2 */ static unsigned long calc_rate(unsigned long rate, u32 m, u32 n, u32 mode, u32 hid_div)
Update calc_rate docs to reflect, that pre_div is not pure divisor, but a register value, and requires conversion. Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> --- drivers/clk/qcom/clk-rcg2.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)