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| Started by | Chanwoo Choi <cw00.choi@samsung.com> |
|---|---|
| First post | 2015-12-09 05:20 +0100 |
| Last post | 2015-12-10 08:30 +0100 |
| Articles | 3 — 2 participants |
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[PATCH v2 17/19] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato Chanwoo Choi <cw00.choi@samsung.com> - 2015-12-09 05:20 +0100
Re: [PATCH v2 17/19] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-12-10 08:00 +0100
Re: [PATCH v2 17/19] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato Chanwoo Choi <cw00.choi@samsung.com> - 2015-12-10 08:30 +0100
| From | Chanwoo Choi <cw00.choi@samsung.com> |
|---|---|
| Date | 2015-12-09 05:20 +0100 |
| Subject | [PATCH v2 17/19] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato |
| Message-ID | <qDEoq-3mU-27@gated-at.bofh.it> |
This patch adds the bus device-tree node of INT (internal) block
to enable the bus frequency. The following sub-blocks share
the VDD_INT power source:
- LEFTBUS (parent device)
- RIGHTBUS
- PERIL
- LCD0
- FSYS
- MCUISP / ISP
- MFC
The LEFTBUS is parent device with devfreq ondemand governor
and the rest devices has the dependency on LEFTBUS bus.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
arch/arm/boot/dts/exynos3250-rinato.dts | 41 +++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index 61477943015b..3a6ca68b68c3 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -681,6 +681,47 @@
status = "okay";
};
+&bus_leftbus {
+ devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+ vdd-supply = <&buck3_reg>;
+ status = "okay";
+};
+
+&bus_rightbus {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_lcd0 {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_fsys {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_mcuisp {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_isp {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_peril {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_mfc {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
&xusbxti {
clock-frequency = <24000000>;
};
--
1.9.1
--
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| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2015-12-10 08:00 +0100 |
| Subject | Re: [PATCH v2 17/19] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato |
| Message-ID | <qE3mN-2xi-3@gated-at.bofh.it> |
| In reply to | #1287086 |
On 09.12.2015 13:08, Chanwoo Choi wrote: > This patch adds the bus device-tree node of INT (internal) block > to enable the bus frequency. The following sub-blocks share "to enable the bus frequency scaling" > the VDD_INT power source: > - LEFTBUS (parent device) > - RIGHTBUS > - PERIL > - LCD0 > - FSYS > - MCUISP / ISP > - MFC > > The LEFTBUS is parent device with devfreq ondemand governor > and the rest devices has the dependency on LEFTBUS bus. How about: "and the rest of devices depend on the LEFTBUS device." ? The patch is good: Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Chanwoo Choi <cw00.choi@samsung.com> |
|---|---|
| Date | 2015-12-10 08:30 +0100 |
| Subject | Re: [PATCH v2 17/19] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato |
| Message-ID | <qE3PP-2Xo-5@gated-at.bofh.it> |
| In reply to | #1288235 |
On 2015년 12월 10일 15:58, Krzysztof Kozlowski wrote: > On 09.12.2015 13:08, Chanwoo Choi wrote: >> This patch adds the bus device-tree node of INT (internal) block >> to enable the bus frequency. The following sub-blocks share > > "to enable the bus frequency scaling" > >> the VDD_INT power source: >> - LEFTBUS (parent device) >> - RIGHTBUS >> - PERIL >> - LCD0 >> - FSYS >> - MCUISP / ISP >> - MFC >> >> The LEFTBUS is parent device with devfreq ondemand governor >> and the rest devices has the dependency on LEFTBUS bus. > > How about: > "and the rest of devices depend on the LEFTBUS device." > ? OK, I'll modify it. > > The patch is good: > > Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Thanks for your review. Best Regards, Chanwoo Choi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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