| Message ID | 20230723160827.22660-3-a39.skl@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | None | expand |
On 23.07.2023 18:08, Adam Skladowski wrote: > Add support for pre-configuring default frequency multiplier, > this appears to be required on some platforms like MSM8976. > Without configuring L_VAL device reboots when trying to bring PLL up. > > Signed-off-by: Adam Skladowski <a39.skl@gmail.com> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Konrad
diff --git a/drivers/clk/qcom/clk-hfpll.c b/drivers/clk/qcom/clk-hfpll.c index 86f728dc69e5..705352aff067 100644 --- a/drivers/clk/qcom/clk-hfpll.c +++ b/drivers/clk/qcom/clk-hfpll.c @@ -44,6 +44,10 @@ static void __clk_hfpll_init_once(struct clk_hw *hw) regmap_write(regmap, hd->user_reg, regval); } + /* Write L_VAL from conf if it exist */ + if (hd->l_val) + regmap_write(regmap, hd->l_reg, hd->l_val); + if (hd->droop_reg) regmap_write(regmap, hd->droop_reg, hd->droop_val); diff --git a/drivers/clk/qcom/clk-hfpll.h b/drivers/clk/qcom/clk-hfpll.h index 2a57b2fb2f2f..27b9effcb3fd 100644 --- a/drivers/clk/qcom/clk-hfpll.h +++ b/drivers/clk/qcom/clk-hfpll.h @@ -18,6 +18,7 @@ struct hfpll_data { u32 status_reg; u8 lock_bit; + u32 l_val; u32 droop_val; u32 config_val; u32 user_val;
Add support for pre-configuring default frequency multiplier, this appears to be required on some platforms like MSM8976. Without configuring L_VAL device reboots when trying to bring PLL up. Signed-off-by: Adam Skladowski <a39.skl@gmail.com> --- drivers/clk/qcom/clk-hfpll.c | 4 ++++ drivers/clk/qcom/clk-hfpll.h | 1 + 2 files changed, 5 insertions(+)