Linux-ARM-Kernel Archive on lore.kernel.org
 help / color / Atom feed
* [PATCH 1/3] arm64: dts: rockchip: Fix min voltage for rk3399-firefly vdd_log
@ 2019-11-11  0:51 Kever Yang
  2019-11-11  0:51 ` [PATCH 2/3] arm64: dts: rk3399-rock960: add vdd_log Kever Yang
                   ` (2 more replies)
  0 siblings, 3 replies; 26+ messages in thread
From: Kever Yang @ 2019-11-11  0:51 UTC (permalink / raw)
  To: heiko
  Cc: Mark Rutland, devicetree, Kever Yang, linux-kernel,
	linux-rockchip, Rob Herring, linux-arm-kernel

The min/max value of vdd_log is decide by pwm IO voltage and its
resistors, the rk3399-firefly board's pwm regulator circuit is designed
for IO voltage at 1.8V, while the board actually use 3.0V for IO, which
at last lead to the min-microvolt to '430mV' instead of '800mV'.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
---

 arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index c706db0ee9ec..92de83dd4dbc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -206,7 +206,7 @@
 		regulator-name = "vdd_log";
 		regulator-always-on;
 		regulator-boot-on;
-		regulator-min-microvolt = <800000>;
+		regulator-min-microvolt = <430000>;
 		regulator-max-microvolt = <1400000>;
 		vin-supply = <&vcc_sys>;
 	};
-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, back to index

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-11  0:51 [PATCH 1/3] arm64: dts: rockchip: Fix min voltage for rk3399-firefly vdd_log Kever Yang
2019-11-11  0:51 ` [PATCH 2/3] arm64: dts: rk3399-rock960: add vdd_log Kever Yang
2019-11-11  5:22   ` Manivannan Sadhasivam
2019-11-11  5:26     ` Manivannan Sadhasivam
2019-11-12  8:10     ` Kever Yang
2019-11-12 17:17       ` Manivannan Sadhasivam
2019-11-13  2:44         ` Kever Yang
2019-11-13  3:21           ` Manivannan Sadhasivam
2019-11-11  0:51 ` [PATCH 3/3] arm64: dts: rk3399: Add init voltage for vdd_log Kever Yang
2019-11-11  8:42   ` Soeren Moch
2019-11-12  8:04     ` Kever Yang
2019-11-12  8:10       ` Heiko Stübner
2019-11-13  3:21         ` Kever Yang
2019-11-18  1:05           ` Heiko Stuebner
2019-11-12  8:16       ` Markus Reichl
2019-11-12  8:44         ` Sören Moch
2019-11-12  8:51           ` Markus Reichl
2019-11-12 10:02         ` Kever Yang
2019-11-12 10:19           ` Soeren Moch
2019-11-12 11:06             ` Markus Reichl
2019-11-12 11:42             ` [PATCH] arm64: dts: rockchip: Fix vdd_log on rk3399-roc-pc Markus Reichl
2019-11-18  1:03               ` Heiko Stuebner
2019-11-13 17:01   ` [PATCH 3/3] arm64: dts: rk3399: Add init voltage for vdd_log Doug Anderson
2019-11-14  1:53     ` Kever Yang
2019-11-13 17:50   ` Vicente Bergas
2019-11-18  1:04 ` [PATCH 1/3] arm64: dts: rockchip: Fix min voltage for rk3399-firefly vdd_log Heiko Stuebner

Linux-ARM-Kernel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/0 linux-arm-kernel/git/0.git
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/1 linux-arm-kernel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-kernel linux-arm-kernel/ https://lore.kernel.org/linux-arm-kernel \
		linux-arm-kernel@lists.infradead.org
	public-inbox-index linux-arm-kernel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-arm-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git