From: Kiran Gunda <kgunda@codeaurora.org>
To: bjorn.andersson@linaro.org, jingoohan1@gmail.com,
lee.jones@linaro.org, b.zolnierkie@samsung.com,
dri-devel@lists.freedesktop.org,
Daniel Thompson <daniel.thompson@linaro.org>,
Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Pavel Machek <pavel@ucw.cz>, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: linux-arm-msm@vger.kernel.org, Kiran Gunda <kgunda@codeaurora.org>
Subject: [PATCH V3 3/7] backlight: qcom-wled: Add new properties for PMI8998
Date: Tue, 19 Jun 2018 16:43:38 +0530 [thread overview]
Message-ID: <1529406822-15379-4-git-send-email-kgunda@codeaurora.org> (raw)
In-Reply-To: <1529406822-15379-1-git-send-email-kgunda@codeaurora.org>
Update the bindings with the new properties used for
PMI8998.
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
.../bindings/leds/backlight/qcom-wled.txt | 84 ++++++++++++++++++++--
1 file changed, 77 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
index 14f28f2..503ce87 100644
--- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
+++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
@@ -48,11 +48,15 @@ platforms. The PMIC is connected to the host processor via SPMI bus.
- qcom,current-limit
Usage: optional
Value type: <u32>
- Definition: mA; per-string current limit
- value: For pm8941: from 0 to 25 with 5 mA step
- Default 20 mA.
- For pmi8998: from 0 to 30 with 5 mA step
- Default 25 mA.
+ Definition: mA; per-string current limit; value from 0 to 25 with
+ 1 mA step. Default 20 mA.
+ This property is supported only for pm8941.
+
+- qcom,current-limit-microamp
+ Usage: optional
+ Value type: <u32>
+ Definition: uA; per-string current limit; value from 0 to 30000 with
+ 2500 uA step. Default 25000 uA.
- qcom,current-boost-limit
Usage: optional
@@ -79,12 +83,61 @@ platforms. The PMIC is connected to the host processor via SPMI bus.
27, 29, 32, 35. default: 29V
This property is supported only for PM8941.
+- qcom,ovp-millivolt
+ Usage: optional
+ Value type: <u32>
+ Definition: mV; Over-voltage protection limit;
+ For pmi8998: one of 18100, 19600, 29600, 31100
+ Default: 29600 mV
+ If this property is not specified for PM8941, it
+ falls back to "qcom,ovp" property.
+
- qcom,num-strings
Usage: optional
Value type: <u32>
Definition: #; number of led strings attached;
- value from 1 to 3. default: 2
- This property is supported only for PM8941.
+ value: For PM8941 from 1 to 3. default: 2
+ For PMI8998 from 1 to 4. default: 4
+
+- interrupts
+ Usage: optional
+ Value type: <prop encoded array>
+ Definition: Interrupts associated with WLED. This should be
+ "short" and "ovp" interrupts. Interrupts can be
+ specified as per the encoding listed under
+ Documentation/devicetree/bindings/spmi/
+ qcom,spmi-pmic-arb.txt.
+
+- interrupt-names
+ Usage: optional
+ Value type: <string>
+ Definition: Interrupt names associated with the interrupts.
+ Must be "short" and "ovp". The short circuit detection
+ is not supported for PM8941.
+
+- qcom,enabled-strings
+ Usage: optional
+ Value tyoe: <u32 array>
+ Definition: Array of the WLED strings numbered from 0 to 3. Each
+ string of leds are operated individually. Specify the
+ list of strings used by the device. Any combination of
+ led strings can be used.
+ for pm8941: Default values are [00 01].
+ for pmi8998: Default values are [00 01 02 03].
+
+- qcom,external-pfet
+ Usage: optional
+ Value type: <bool>
+ Definition: Specify if external PFET control for short circuit
+ protection is used. This property is supported only
+ for PMI8998.
+
+- qcom,auto-string-detection
+ Usage: optional
+ Value type: <bool>
+ Definition: Enables auto-detection of the WLED string configuration.
+ This feature is not supported for PM8941.
+
Example:
@@ -99,4 +152,21 @@ pm8941-wled@d800 {
qcom,switching-freq = <1600>;
qcom,ovp = <29>;
qcom,num-strings = <2>;
+ qcom,enabled-strings = <0x00 0x01>;
+};
+
+pmi8998-wled@d800 {
+ compatible = "qcom,pmi8998-wled";
+ reg = <0xd800 0xd900>;
+ label = "backlight";
+
+ interrupts = <3 0xd8 2 IRQ_TYPE_EDGE_RISING>,
+ <3 0xd8 1 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "short", "ovp";
+ qcom,current-limit-microamp = <25000>;
+ qcom,current-boost-limit = <805>;
+ qcom,switching-freq = <1600>;
+ qcom,ovp-millivolt = <29600>;
+ qcom,num-strings = <4>;
+ qcom,enabled-strings = <0x00 0x01 0x02 0x03>;
};
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2018-06-19 11:15 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 11:13 [PATCH V3 0/7] backlight: qcom-wled: Support for QCOM wled driver Kiran Gunda
2018-06-19 11:13 ` [PATCH V3 1/7] backlight: qcom-wled: Rename pm8941-wled.c to qcom-wled.c Kiran Gunda
2018-06-19 22:54 ` Bjorn Andersson
2018-06-20 5:23 ` kgunda
2018-06-20 18:27 ` Rob Herring
2018-06-21 13:05 ` Daniel Thompson
2018-06-21 13:12 ` Daniel Thompson
2018-06-19 11:13 ` [PATCH V3 2/7] backlight: qcom-wled: restructure the qcom-wled bindings Kiran Gunda
2018-06-19 22:56 ` Bjorn Andersson
2018-06-20 18:29 ` Rob Herring
2018-06-21 13:12 ` Daniel Thompson
2018-06-19 11:13 ` Kiran Gunda [this message]
2018-06-19 23:03 ` [PATCH V3 3/7] backlight: qcom-wled: Add new properties for PMI8998 Bjorn Andersson
2018-06-20 5:25 ` kgunda
2018-06-20 19:05 ` Rob Herring
2018-06-19 11:13 ` [PATCH V3 4/7] backlight: qcom-wled: Rename PM8941* to WLED3 Kiran Gunda
2018-06-19 23:11 ` Bjorn Andersson
2018-06-20 6:26 ` kgunda
2018-06-19 11:13 ` [PATCH V3 5/7] backlight: qcom-wled: Add support for WLED4 peripheral Kiran Gunda
2018-06-20 5:14 ` Bjorn Andersson
2018-06-20 11:00 ` kgunda
2018-06-22 23:09 ` Bjorn Andersson
2018-06-25 5:54 ` kgunda
2018-06-19 11:13 ` [PATCH V3 6/7] backlight: qcom-wled: add support for short circuit handling Kiran Gunda
2018-06-20 5:33 ` Bjorn Andersson
2018-06-20 5:47 ` Vinod
2018-06-20 11:03 ` kgunda
2018-06-19 11:13 ` [PATCH V3 7/7] backlight: qcom-wled: Add auto string detection logic Kiran Gunda
2018-06-20 6:22 ` Bjorn Andersson
2018-06-20 12:37 ` kgunda
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