diff mbox series

ARM: dts: exynos: Remove 'opp-shared' from Exynos3 bus OPP-tables

Message ID 20200911122220.13698-1-m.szyprowski@samsung.com
State New
Headers show
Series ARM: dts: exynos: Remove 'opp-shared' from Exynos3 bus OPP-tables | expand

Commit Message

Marek Szyprowski Sept. 11, 2020, 12:22 p.m. UTC
Commits 1019fe2c7280 ("ARM: dts: exynos: Adjust bus related OPPs to the
values correct for Exynos5422 Odroids") and 9ff416cf45a0 ("ARM: dts:
exynos: Disable frequency scaling for FSYS bus on Odroid XU3 family")
revealed that 'opp-shared' property for the Exynos bus OPPs was used
incorrectly, what had the side-effect of disabling frequency scaling for
the second and latter buses sharing given OPP-table.

Fix this by removing bogus 'opp-shared' properties from Exynos3 bus
OPP-tables. This restores frequency scaling for the following busses:
RightBus, LCD0, FSYS and MFC.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

---
 arch/arm/boot/dts/exynos3250.dtsi | 5 -----
 1 file changed, 5 deletions(-)

-- 
2.17.1

Comments

Krzysztof Kozlowski Oct. 26, 2020, 6:35 p.m. UTC | #1
On Fri, Sep 11, 2020 at 02:22:20PM +0200, Marek Szyprowski wrote:
> Commits 1019fe2c7280 ("ARM: dts: exynos: Adjust bus related OPPs to the

> values correct for Exynos5422 Odroids") and 9ff416cf45a0 ("ARM: dts:

> exynos: Disable frequency scaling for FSYS bus on Odroid XU3 family")

> revealed that 'opp-shared' property for the Exynos bus OPPs was used

> incorrectly, what had the side-effect of disabling frequency scaling for

> the second and latter buses sharing given OPP-table.

> 

> Fix this by removing bogus 'opp-shared' properties from Exynos3 bus

> OPP-tables. This restores frequency scaling for the following busses:

> RightBus, LCD0, FSYS and MFC.

> 

> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

> ---

>  arch/arm/boot/dts/exynos3250.dtsi | 5 -----

>  1 file changed, 5 deletions(-)


Hi Marek,

Any news on these two patches? Shall I still wait?

Best regards,
Krzysztof
Marek Szyprowski Oct. 26, 2020, 8:54 p.m. UTC | #2
Hi Krzysztof,

On 26.10.2020 19:35, Krzysztof Kozlowski wrote:
> On Fri, Sep 11, 2020 at 02:22:20PM +0200, Marek Szyprowski wrote:

>> Commits 1019fe2c7280 ("ARM: dts: exynos: Adjust bus related OPPs to the

>> values correct for Exynos5422 Odroids") and 9ff416cf45a0 ("ARM: dts:

>> exynos: Disable frequency scaling for FSYS bus on Odroid XU3 family")

>> revealed that 'opp-shared' property for the Exynos bus OPPs was used

>> incorrectly, what had the side-effect of disabling frequency scaling for

>> the second and latter buses sharing given OPP-table.

>>

>> Fix this by removing bogus 'opp-shared' properties from Exynos3 bus

>> OPP-tables. This restores frequency scaling for the following busses:

>> RightBus, LCD0, FSYS and MFC.

>>

>> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

>> ---

>>   arch/arm/boot/dts/exynos3250.dtsi | 5 -----

>>   1 file changed, 5 deletions(-)

> Hi Marek,

>

> Any news on these two patches? Shall I still wait?


I would apply it to give the testing in -next. I got the information 
that the crash was not reproduced, thus probably not related to this patch.

Best regards

-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland
Krzysztof Kozlowski Oct. 27, 2020, 5:40 p.m. UTC | #3
On Fri, Sep 11, 2020 at 02:22:20PM +0200, Marek Szyprowski wrote:
> Commits 1019fe2c7280 ("ARM: dts: exynos: Adjust bus related OPPs to the
> values correct for Exynos5422 Odroids") and 9ff416cf45a0 ("ARM: dts:
> exynos: Disable frequency scaling for FSYS bus on Odroid XU3 family")
> revealed that 'opp-shared' property for the Exynos bus OPPs was used
> incorrectly, what had the side-effect of disabling frequency scaling for
> the second and latter buses sharing given OPP-table.
> 
> Fix this by removing bogus 'opp-shared' properties from Exynos3 bus
> OPP-tables. This restores frequency scaling for the following busses:
> RightBus, LCD0, FSYS and MFC.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
> ---
>  arch/arm/boot/dts/exynos3250.dtsi | 5 -----

Thanks, applied.

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index a1e93fb7f694..75ed82600ec8 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -775,7 +775,6 @@ 
 
 		bus_dmc_opp_table: opp_table1 {
 			compatible = "operating-points-v2";
-			opp-shared;
 
 			opp-50000000 {
 				opp-hz = /bits/ 64 <50000000>;
@@ -865,7 +864,6 @@ 
 
 		bus_leftbus_opp_table: opp_table2 {
 			compatible = "operating-points-v2";
-			opp-shared;
 
 			opp-50000000 {
 				opp-hz = /bits/ 64 <50000000>;
@@ -891,7 +889,6 @@ 
 
 		bus_mcuisp_opp_table: opp_table3 {
 			compatible = "operating-points-v2";
-			opp-shared;
 
 			opp-50000000 {
 				opp-hz = /bits/ 64 <50000000>;
@@ -912,7 +909,6 @@ 
 
 		bus_isp_opp_table: opp_table4 {
 			compatible = "operating-points-v2";
-			opp-shared;
 
 			opp-50000000 {
 				opp-hz = /bits/ 64 <50000000>;
@@ -933,7 +929,6 @@ 
 
 		bus_peril_opp_table: opp_table5 {
 			compatible = "operating-points-v2";
-			opp-shared;
 
 			opp-50000000 {
 				opp-hz = /bits/ 64 <50000000>;