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Message-ID: <1524065874-434-2-git-send-email-fabrice.gasnier@st.com>
Date: Wed, 18 Apr 2018 17:37:52 +0200
From: Fabrice Gasnier <fabrice.gasnier@...com>
To: <jic23@...nel.org>, <robh+dt@...nel.org>, <alexandre.torgue@...com>
CC: <mark.rutland@....com>, <mcoquelin.stm32@...il.com>,
<lars@...afoo.de>, <knaack.h@....de>, <pmeerw@...erw.net>,
<fabrice.gasnier@...com>, <linux-iio@...r.kernel.org>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <benjamin.gaignard@...aro.org>
Subject: [PATCH 1/3] dt-bindings: iio: stm32-adc: add support for STM32MP1.
Document support for STM32MP1 ADC. It's quite similar to STM32H7 ADC.
Introduce "st,stm32mp1-adc" compatible to handle variants of this
hardware such as vregready flag, interrupts, clock rate.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index e8bb824..9994384 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -24,8 +24,11 @@ Required properties:
- compatible: Should be one of:
"st,stm32f4-adc-core"
"st,stm32h7-adc-core"
+ "st,stm32mp1-adc-core"
- reg: Offset and length of the ADC block register set.
-- interrupts: Must contain the interrupt for ADC block.
+- interrupts: One or more interrupts for ADC block. Some parts like stm32f4
+ and stm32h7 share a common ADC interrupt line. stm32mp1 has separate
+ lines for each ADC within ADC block.
- clocks: Core can use up to two clocks, depending on part used:
- "adc" clock: for the analog circuitry, common to all ADCs.
It's required on stm32f4.
@@ -53,6 +56,7 @@ Required properties:
- compatible: Should be one of:
"st,stm32f4-adc"
"st,stm32h7-adc"
+ "st,stm32mp1-adc"
- reg: Offset of ADC instance in ADC block (e.g. may be 0x0, 0x100, 0x200).
- clocks: Input clock private to this ADC instance. It's required only on
stm32f4, that has per instance clock input for registers access.
--
1.9.1
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