| Message ID | 20220221200540.14460-1-petr.vorel@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [1/1] arm64: dts: qcom: bullhead: Fix sdcard1 overclocking | expand |
Hi, > rev 1.01 (msm8992-lg-bullhead-rev-101.dts) has overclocking warnings: > [ 1.997606] mmc0: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz > [ 1.997681] mmc0: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz > [ 2.010904] mmc0: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz > [ 2.012961] mmc0: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz > [ 2.027497] mmc0: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz > [ 2.027607] mmc0: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz > [ 2.039699] mmc0: new HS400 MMC card at address 0001 > Similarly to angler use gcc GPLL4_EARLY to get rid of the warnings. > Not tested on 1.0, but should work here as well. As I wrote at Konrad's patch "clk: qcom: gcc-msm8994: Fix gpll4 width" [1] with that fix this workaround is not needed if Konrad's patch applied. Kind regards, Petr [1] https://lore.kernel.org/linux-arm-msm/YjuE+cgGXCLihPIa@pevik/T/#t
diff --git a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi index 3b0cc85d6674..c18839b2baf0 100644 --- a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2015, LGE Inc. All rights reserved. * Copyright (c) 2016, The Linux Foundation. All rights reserved. - * Copyright (c) 2021, Petr Vorel <petr.vorel@gmail.com> + * Copyright (c) 2021-2022, Petr Vorel <petr.vorel@gmail.com> */ /dts-v1/; @@ -299,4 +299,8 @@ &sdhc1 { status = "okay"; mmc-hs400-1_8v; + + /* avoid overclocking warnings */ + assigned-clocks = <&gcc GPLL4_EARLY>; + assigned-clock-rates = <384000000>; };
rev 1.01 (msm8992-lg-bullhead-rev-101.dts) has overclocking warnings: [ 1.997606] mmc0: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz [ 1.997681] mmc0: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz [ 2.010904] mmc0: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz [ 2.012961] mmc0: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz [ 2.027497] mmc0: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz [ 2.027607] mmc0: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz [ 2.039699] mmc0: new HS400 MMC card at address 0001 Similarly to angler use gcc GPLL4_EARLY to get rid of the warnings. Not tested on 1.0, but should work here as well. Signed-off-by: Petr Vorel <petr.vorel@gmail.com> --- @Jean: could you please test it on your rev 1.0? Thanks! Kind regards, Petr arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)