[PATCH 3/3] clk: qcom: gcc-glymur: Remove 85.71 MHz USB4 master clock frequency

Konrad Dybcio posted 3 patches 4 months ago
[PATCH 3/3] clk: qcom: gcc-glymur: Remove 85.71 MHz USB4 master clock frequency
Posted by Konrad Dybcio 4 months ago
From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

The USB4 HPG says this frequency remains unused, remove it from the
frequency table to avoid any misunderstandings.

The reason it's unused seems to be that the lower RPMh level required
to support it (LOW_SVS) is not enough for other pieces of the pipeline
which require SVS, which in turn is enough to support a faster, 175-ish
MHz rate.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 drivers/clk/qcom/gcc-glymur.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/clk/qcom/gcc-glymur.c b/drivers/clk/qcom/gcc-glymur.c
index 62059120f972..6ed9bd7b7d9c 100644
--- a/drivers/clk/qcom/gcc-glymur.c
+++ b/drivers/clk/qcom/gcc-glymur.c
@@ -2643,7 +2643,6 @@ static struct clk_rcg2 gcc_usb3_tert_phy_aux_clk_src = {
 };
 
 static const struct freq_tbl ftbl_gcc_usb4_0_master_clk_src[] = {
-	F(85714286, P_GCC_GPLL0_OUT_EVEN, 3.5, 0, 0),
 	F(177666750, P_GCC_GPLL8_OUT_MAIN, 4, 0, 0),
 	F(355333500, P_GCC_GPLL8_OUT_MAIN, 2, 0, 0),
 	{ }

-- 
2.51.0
Re: [PATCH 3/3] clk: qcom: gcc-glymur: Remove 85.71 MHz USB4 master clock frequency
Posted by Abel Vesa 3 months, 3 weeks ago
On 25-10-10 12:24:52, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> 
> The USB4 HPG says this frequency remains unused, remove it from the
> frequency table to avoid any misunderstandings.
> 
> The reason it's unused seems to be that the lower RPMh level required
> to support it (LOW_SVS) is not enough for other pieces of the pipeline
> which require SVS, which in turn is enough to support a faster, 175-ish
> MHz rate.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Reviewed-by: Abel Vesa <abel.vesa@linaro.org>