The gpll4 postdiv is actually a div4, so make sure that Linux is aware of
this.
This fixes the following error messages:
[ 0.804491] mmc1: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz
[ 0.805057] mmc1: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz
Fixes: aec89f78cf01 ("clk: qcom: Add support for msm8994 global clock controller")
Signed-off-by: Konrad Dybcio <[email protected]>
---
Cc: Petr Vorel <[email protected]>
drivers/clk/qcom/gcc-msm8994.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/qcom/gcc-msm8994.c b/drivers/clk/qcom/gcc-msm8994.c
index f09499999eb3..6b702cdacbf2 100644
--- a/drivers/clk/qcom/gcc-msm8994.c
+++ b/drivers/clk/qcom/gcc-msm8994.c
@@ -77,6 +77,7 @@ static struct clk_alpha_pll gpll4_early = {
static struct clk_alpha_pll_postdiv gpll4 = {
.offset = 0x1dc0,
+ .width = 4,
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
.clkr.hw.init = &(struct clk_init_data){
.name = "gpll4",
--
2.35.1
Quoting Konrad Dybcio (2022-03-19 10:49:40)
> The gpll4 postdiv is actually a div4, so make sure that Linux is aware of
> this.
>
> This fixes the following error messages:
>
> [ 0.804491] mmc1: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz
> [ 0.805057] mmc1: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz
>
> Fixes: aec89f78cf01 ("clk: qcom: Add support for msm8994 global clock controller")
>
> Signed-off-by: Konrad Dybcio <[email protected]>
> ---
Applied to clk-next
Hi Konrad,
Reviewed-by: Petr Vorel <[email protected]>
> The gpll4 postdiv is actually a div4, so make sure that Linux is aware of
> this.
> This fixes the following error messages:
> [ 0.804491] mmc1: Card appears overclocked; req 200000000 Hz, actual 343999999 Hz
> [ 0.805057] mmc1: Card appears overclocked; req 400000000 Hz, actual 687999999 Hz
yes, this works on my patchset [1] even without these workarounds (I'll submit
v5 without it)
+ assigned-clocks = <&gcc GPLL4_EARLY>;
+ assigned-clock-rates = <384000000>;
Tested-by: Petr Vorel <[email protected]>
Kind regards,
Petr
[1] https://lore.kernel.org/linux-arm-msm/[email protected]/
> Fixes: aec89f78cf01 ("clk: qcom: Add support for msm8994 global clock controller")
> Signed-off-by: Konrad Dybcio <[email protected]>
> ---
> Cc: Petr Vorel <[email protected]>
> drivers/clk/qcom/gcc-msm8994.c | 1 +
> 1 file changed, 1 insertion(+)
> diff --git a/drivers/clk/qcom/gcc-msm8994.c b/drivers/clk/qcom/gcc-msm8994.c
> index f09499999eb3..6b702cdacbf2 100644
> --- a/drivers/clk/qcom/gcc-msm8994.c
> +++ b/drivers/clk/qcom/gcc-msm8994.c
> @@ -77,6 +77,7 @@ static struct clk_alpha_pll gpll4_early = {
> static struct clk_alpha_pll_postdiv gpll4 = {
> .offset = 0x1dc0,
> + .width = 4,
> .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
> .clkr.hw.init = &(struct clk_init_data){
> .name = "gpll4",