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Thu, 3 Sep 2015 02:44:15 -0700 (PDT) From: Chee Nouk Phoo To: , , CC: , , , Subject: [[PATCH v2] 1/2] Altera Modular ADC driver device binding Date: Tue, 1 Sep 2015 14:49:58 -0700 Message-ID: <1441144199-20231-2-git-send-email-cnphoon@altera.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1441144199-20231-1-git-send-email-cnphoon@altera.com> References: <1441144199-20231-1-git-send-email-cnphoon@altera.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-Microsoft-Exchange-Diagnostics: 1; BY2FFO11FD027; 1:FU+Wyf923UjpZp8IK1yN0uOdramgiOXOzbfMeZDUTxM1v1dMFeSwr0K8m/obaNpgr0Z2gOLaFJ2cpcuO7nWSSpy8aCdiNrvlkR6T0NKQ6ysFDS1y1RIMlEb0Cv3Ps90STFYrqWsG5QcctACw93fsvVnHTJq903h0pYTpxsi+lnyKZ5HSSyTJe0IlNwtLz33UgPoYUuuowzatTmxb+xzdKR8Eg7Pu8CvRV4X++JGzP9mriejtKUboBOA4qeCfeh/2/zfjmj0VQuoZKb2rrWnDAQIzbecXBx9UrwEJHqm8tFszfy98UnBBPUgfjJP7FWluS3Ef9fGQJpEfVZIQtWmKrA== X-Forefront-Antispam-Report: CIP:66.35.236.227; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(2980300002)(189002)(199003)(53416004)(33646002)(106466001)(36756003)(16796002)(97736004)(4001540100001)(5001920100001)(229853001)(81156007)(5003940100001)(5003600100002)(48376002)(46102003)(64706001)(105596002)(5007970100001)(47776003)(189998001)(19580405001)(5001960100002)(6806004)(107886002)(19580395003)(62966003)(50226001)(77156002)(50466002)(86362001)(5001860100001)(50986999)(87936001)(2201001)(92566002)(5001830100001)(76176999)(2950100001)(68736005)(5001770100001)(7099028)(7059030)(4001430100001); 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It can be configured to dual ADC mode that supports two channel synchronous sampling or independent single ADCs. ADC sampled values will be written into memory slots in sequence determined by a user configurable sequencer block. This patch adds Altera Modular ADC driver device tree binding Signed-off-by: Chee Nouk Phoon --- .../bindings/iio/adc/altr,modular-adc.txt | 63 ++++++++++++++++++++ 1 files changed, 63 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/adc/altr,modular-adc.txt diff --git a/Documentation/devicetree/bindings/iio/adc/altr,modular-adc.txt b/Documentation/devicetree/bindings/iio/adc/altr,modular-adc.txt new file mode 100644 index 0000000..faafcac --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/altr,modular-adc.txt @@ -0,0 +1,63 @@ +Altera Modular (Dual) ADC + +This binding document describes both Altera Modular ADC and Altera Modular Dual +ADC. Both options can be configured during generation time in Qsys. This driver +only supports standard sequencer with Avalon-MM sample storage with up to 64 +memory slots. + +Required properties: +- compatible: must be one of the following strings + "altr,modular-adc-1.0": single ADC configuration + "altr,modular-dual-adc-1.0": dual ADC configuration + +- reg: Address and length of the register set for the device. It contains the + information of registers in the same order as described by reg-names + +- reg-names: Should contain the reg names + "sequencer_csr": register region for adc sequencer block + "sample_store_csr": register region for sample store block + +- interrupts: interrupt line for ADC + +- altr,adc-mode : ADC configuration + 1: single ADC mode + 2: dual ADC mode + +- altr,adc-slot-count : specify number of conversion slot in use + +- altr,adc-slot-sequence-: specify ADC channel + conversion sequence + : instantiated ADC number + : slot index for ADC memory slot + +- altr,adc-number : specify ADC number when single ADC mode is selected + 1: 1st ADC + 2: 2nd ACD + +Example: single ADC +modular_adc_0: adc@0x20000200 { + compatible = "altr,modular-adc"; + reg = <0x20000000 0x00000008>, + <0x20000200 0x00000200>; + reg-names = "sequencer_csr", "sample_store_csr"; + interrupt-parent = <&cpu>; + interrupts = <8>; + altr,adc-mode = <1>; + altr,adc-slot-count = <2>; + altr,adc1-slot-sequence-1 = <1>; + altr,adc-number = <1>; +}; + +Example: dual ADC +modular_adc_1: adc@0x18002200 { + compatible = "altr,modular-dual-adc"; + reg = <0x18002000 0x00000008>, + <0x18002200 0x00000200>; + reg-names = "sequencer_csr", "sample_store_csr"; + interrupt-parent = <&cpu>; + interrupts = <8>; + altr,adc-mode = <2>; + altr,adc-slot-count = <1>; + altr,adc1-slot-sequence-1 = <6>; + altr,adc2-slot-sequence-1 = <6>; +}; \ No newline at end of file