* [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range
@ 2020-05-22 10:44 Robin Gong
2020-05-22 10:24 ` Fabio Estevam
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Robin Gong @ 2020-05-22 10:44 UTC (permalink / raw)
To: robh+dt, shawnguo, s.hauer, festevam, anson.huang, peng.fan,
leonard.crestez, aisheng.dong
Cc: kernel, devicetree, linux-arm-kernel, linux-kernel, linux-imx
Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group
(1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups
have been supported at bd718x7-regulator driver, hence, just corrrect the
voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too.
Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mm
datasheet as the below warning log in kernel:
[ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
[ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
Fixes: 78cc25fa265d ("arm64: dts: imx8mm-evk: Add BD71847 PMIC")
Cc: stable@vger.kernel.org
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index e5ec832..0f1d7f8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -208,7 +208,7 @@
ldo1_reg: LDO1 {
regulator-name = "LDO1";
- regulator-min-microvolt = <3000000>;
+ regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
@@ -216,7 +216,7 @@
ldo2_reg: LDO2 {
regulator-name = "LDO2";
- regulator-min-microvolt = <900000>;
+ regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-boot-on;
regulator-always-on;
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range
2020-05-22 10:44 [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range Robin Gong
@ 2020-05-22 10:24 ` Fabio Estevam
2020-05-22 10:44 ` [PATCH v3 2/2] arm64: dts: imx8mn-ddr4-evk: " Robin Gong
2020-06-18 7:34 ` [PATCH v3 1/2] arm64: dts: imx8mm-evk: " Shawn Guo
2 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2020-05-22 10:24 UTC (permalink / raw)
To: Robin Gong
Cc: Rob Herring, Shawn Guo, Sascha Hauer, Yongcai Huang, Peng Fan,
Leonard Crestez, Dong Aisheng, Sascha Hauer,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
linux-kernel, NXP Linux Team
On Thu, May 21, 2020 at 11:44 PM Robin Gong <yibin.gong@nxp.com> wrote:
>
> Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group
> (1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups
> have been supported at bd718x7-regulator driver, hence, just corrrect the
> voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too.
> Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mm
> datasheet as the below warning log in kernel:
>
> [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
> [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
>
> Fixes: 78cc25fa265d ("arm64: dts: imx8mm-evk: Add BD71847 PMIC")
> Cc: stable@vger.kernel.org
> Signed-off-by: Robin Gong <yibin.gong@nxp.com>
> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH v3 2/2] arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
2020-05-22 10:44 [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range Robin Gong
2020-05-22 10:24 ` Fabio Estevam
@ 2020-05-22 10:44 ` Robin Gong
2020-05-22 10:24 ` Fabio Estevam
2020-06-18 7:34 ` [PATCH v3 1/2] arm64: dts: imx8mm-evk: " Shawn Guo
2 siblings, 1 reply; 5+ messages in thread
From: Robin Gong @ 2020-05-22 10:44 UTC (permalink / raw)
To: robh+dt, shawnguo, s.hauer, festevam, anson.huang, peng.fan,
leonard.crestez, aisheng.dong
Cc: kernel, devicetree, linux-arm-kernel, linux-kernel, linux-imx
Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group
(1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups
have been supported at bd718x7-regulator driver, hence, just corrrect the
voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too.
Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mn
datasheet as the below warning log in kernel:
[ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
[ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
Fixes: 3e44dd09736d ("arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support")
Cc: stable@vger.kernel.org
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
index d07e0e6..a1e5483 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
@@ -113,7 +113,7 @@
ldo1_reg: LDO1 {
regulator-name = "LDO1";
- regulator-min-microvolt = <3000000>;
+ regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
@@ -121,7 +121,7 @@
ldo2_reg: LDO2 {
regulator-name = "LDO2";
- regulator-min-microvolt = <900000>;
+ regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-boot-on;
regulator-always-on;
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH v3 2/2] arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
2020-05-22 10:44 ` [PATCH v3 2/2] arm64: dts: imx8mn-ddr4-evk: " Robin Gong
@ 2020-05-22 10:24 ` Fabio Estevam
0 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2020-05-22 10:24 UTC (permalink / raw)
To: Robin Gong
Cc: Rob Herring, Shawn Guo, Sascha Hauer, Yongcai Huang, Peng Fan,
Leonard Crestez, Dong Aisheng, Sascha Hauer,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
linux-kernel, NXP Linux Team
On Thu, May 21, 2020 at 11:44 PM Robin Gong <yibin.gong@nxp.com> wrote:
>
> Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group
> (1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups
> have been supported at bd718x7-regulator driver, hence, just corrrect the
> voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too.
> Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mn
> datasheet as the below warning log in kernel:
>
> [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
> [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
>
> Fixes: 3e44dd09736d ("arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support")
> Cc: stable@vger.kernel.org
> Signed-off-by: Robin Gong <yibin.gong@nxp.com>
> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range
2020-05-22 10:44 [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range Robin Gong
2020-05-22 10:24 ` Fabio Estevam
2020-05-22 10:44 ` [PATCH v3 2/2] arm64: dts: imx8mn-ddr4-evk: " Robin Gong
@ 2020-06-18 7:34 ` Shawn Guo
2 siblings, 0 replies; 5+ messages in thread
From: Shawn Guo @ 2020-06-18 7:34 UTC (permalink / raw)
To: Robin Gong
Cc: robh+dt, s.hauer, festevam, anson.huang, peng.fan,
leonard.crestez, aisheng.dong, kernel, devicetree,
linux-arm-kernel, linux-kernel, linux-imx
On Fri, May 22, 2020 at 06:44:50PM +0800, Robin Gong wrote:
> Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group
> (1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups
> have been supported at bd718x7-regulator driver, hence, just corrrect the
> voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too.
> Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mm
> datasheet as the below warning log in kernel:
>
> [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
> [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
>
> Fixes: 78cc25fa265d ("arm64: dts: imx8mm-evk: Add BD71847 PMIC")
> Cc: stable@vger.kernel.org
> Signed-off-by: Robin Gong <yibin.gong@nxp.com>
> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Applied both, thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-06-18 7:34 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-05-22 10:44 [PATCH v3 1/2] arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range Robin Gong
2020-05-22 10:24 ` Fabio Estevam
2020-05-22 10:44 ` [PATCH v3 2/2] arm64: dts: imx8mn-ddr4-evk: " Robin Gong
2020-05-22 10:24 ` Fabio Estevam
2020-06-18 7:34 ` [PATCH v3 1/2] arm64: dts: imx8mm-evk: " Shawn Guo
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).