* [PATCH] arm64: dts: qcom: sdm660-xiaomi-lavender: Configure WLED
@ 2022-04-25 3:28 Dang Huynh
2022-04-25 13:13 ` Alexey Minnekhanov
2022-06-27 20:02 ` (subset) " Bjorn Andersson
0 siblings, 2 replies; 3+ messages in thread
From: Dang Huynh @ 2022-04-25 3:28 UTC (permalink / raw)
To: Dang Huynh
Cc: Andy Gross, Bjorn Andersson, Rob Herring, Krzysztof Kozlowski,
linux-arm-msm, devicetree, linux-kernel
WLED is used for controlling display backlight on this phone.
Signed-off-by: Dang Huynh <danct12@riseup.net>
---
arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts b/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
index dcbaacf18f66..7a30008ee0dd 100644
--- a/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
+++ b/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
@@ -363,6 +363,14 @@ vreg_l19a_3p3: l19 {
};
};
+&pm660l_wled {
+ status = "okay";
+
+ qcom,switching-freq = <800>;
+ qcom,current-limit-microamp = <20000>;
+ qcom,num-strings = <2>;
+};
+
&sdhc_1 {
status = "okay";
supports-cqe;
--
2.36.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: qcom: sdm660-xiaomi-lavender: Configure WLED
2022-04-25 3:28 [PATCH] arm64: dts: qcom: sdm660-xiaomi-lavender: Configure WLED Dang Huynh
@ 2022-04-25 13:13 ` Alexey Minnekhanov
2022-06-27 20:02 ` (subset) " Bjorn Andersson
1 sibling, 0 replies; 3+ messages in thread
From: Alexey Minnekhanov @ 2022-04-25 13:13 UTC (permalink / raw)
To: Dang Huynh
Cc: Andy Gross, Bjorn Andersson, Krzysztof Kozlowski, linux-arm-msm,
devicetree, linux-kernel, Marijn Suijten
25.04.2022 06:28, Dang Huynh wrote:
> WLED is used for controlling display backlight on this phone.
>
Hi!
Interacting with wled changes brightness indeed, but results in the
following trace in dmesg:
```
[ 499.906317] ------------[ cut here ]------------
[ 499.906478] Unbalanced enable for IRQ 39
[ 499.910118] WARNING: CPU: 4 PID: 74 at kernel/irq/manage.c:774
__enable_irq+0x4c/0x80
[ 499.914094] Modules linked in:
[ 499.921705] CPU: 4 PID: 74 Comm: kworker/4:2 Not tainted
5.17.0-sdm660-07615-gd33d148796b0-dirty #23
[ 499.924800] Hardware name: Xiaomi Redmi Note 7 (DT)
[ 499.933988] Workqueue: events wled_ovp_work
[ 499.938571] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS
BTYPE=--)
[ 499.942803] pc : __enable_irq+0x4c/0x80
[ 499.949687] lr : __enable_irq+0x4c/0x80
[ 499.953506] sp : ffff800008a73d70
[ 499.957311] x29: ffff800008a73d70 x28: 0000000000000000 x27:
0000000000000000
[ 499.960890] x26: ffffad5f9fa4efc0 x25: ffff60283e4baf05 x24:
ffff602781f65130
[ 499.968010] x23: ffff60283e4baf00 x22: ffff60283e4b7180 x21:
0000000000000000
[ 499.975128] x20: 0000000000000027 x19: ffff602781136600 x18:
ffffffffffffffff
[ 499.982243] x17: 0000000000000000 x16: 0000000000000000 x15:
0000000000000001
[ 499.989363] x14: 0000000000000000 x13: ffffad5f9f92fea8 x12:
0000000000000357
[ 499.996479] x11: 000000000000011d x10: ffffad5f9f987ea8 x9 :
ffffad5f9f92fea8
[ 500.003597] x8 : 00000000ffffefff x7 : ffffad5f9f987ea8 x6 :
0000000000000000
[ 500.010714] x5 : 000000000000bff4 x4 : 0000000000000000 x3 :
0000000000000000
[ 500.017832] x2 : 0000000000000000 x1 : 0000000000000000 x0 :
ffff6027820c8000
[ 500.024954] Call trace:
[ 500.047230] __enable_irq+0x4c/0x80
[ 500.062686] enable_irq+0x48/0xa0
[ 500.078190] wled_ovp_work+0x14/0x20
[ 500.093761] process_one_work+0x1d0/0x320
[ 500.105080] worker_thread+0x14c/0x444
[ 500.120700] kthread+0x10c/0x110
[ 500.136347] ret_from_fork+0x10/0x20
[ 500.151981] ---[ end trace 0000000000000000 ]---
```
--
Regards,
Alexey Minnekhanov
postmarketOS developer
https://www.postmarketos.org
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: (subset) [PATCH] arm64: dts: qcom: sdm660-xiaomi-lavender: Configure WLED
2022-04-25 3:28 [PATCH] arm64: dts: qcom: sdm660-xiaomi-lavender: Configure WLED Dang Huynh
2022-04-25 13:13 ` Alexey Minnekhanov
@ 2022-06-27 20:02 ` Bjorn Andersson
1 sibling, 0 replies; 3+ messages in thread
From: Bjorn Andersson @ 2022-06-27 20:02 UTC (permalink / raw)
To: Dang Huynh
Cc: linux-kernel, Krzysztof Kozlowski, linux-arm-msm, Rob Herring,
devicetree, Andy Gross
On Mon, 25 Apr 2022 10:28:24 +0700, Dang Huynh wrote:
> WLED is used for controlling display backlight on this phone.
>
>
Applied, thanks!
[1/1] arm64: dts: qcom: sdm660-xiaomi-lavender: Configure WLED
commit: b74f7b8f174f0ce2261cc05050dcbfed3314ab1e
Best regards,
--
Bjorn Andersson <bjorn.andersson@linaro.org>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2022-06-27 20:02 ` (subset) " Bjorn Andersson
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