linux-kernel - Re: [PATCH] rtc: isl12026: Add driver.

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Message-ID: <d2337554-c3df-f915-72c7-5decd571f12f@caviumnetworks.com>
Date:   Mon, 12 Feb 2018 11:03:30 -0800
From:   David Daney <ddaney@...iumnetworks.com>
To:     David Daney <david.daney@...ium.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-rtc@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rtc: isl12026: Add driver.

On 02/12/2018 10:59 AM, David Daney wrote:
> The ISL12026 is a combination RTC and EEPROM device with I2C
> interface.  The standard RTC driver interface is provided.  The EEPROM
> is accessed via the NVMEM interface via the "eeprom0" directory in the
> sysfs entry for the device.
> 
> Signed-off-by: David Daney <david.daney@...ium.com>
> ---
>   .../devicetree/bindings/rtc/isil,isl12026.txt      |  27 +
>   drivers/rtc/Kconfig                                |   9 +
>   drivers/rtc/Makefile                               |   1 +
>   drivers/rtc/rtc-isl12026.c                         | 550 +++++++++++++++++++++
>   4 files changed, 587 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/rtc/isil,isl12026.txt
>   create mode 100644 drivers/rtc/rtc-isl12026.c
> 
> diff --git a/Documentation/devicetree/bindings/rtc/isil,isl12026.txt b/Documentation/devicetree/bindings/rtc/isil,isl12026.txt
> new file mode 100644
> index 000000000000..4b6c7177a95a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/isil,isl12026.txt
> @@ -0,0 +1,27 @@
> +ISL12026 I2C RTC/EEPROM
> +
> +ISL12026 is an I2C RTC/EEPROM combination device.  The RTC and control
> +registers respond at bus address 0x6f, and the EEPROM array responds
> +at bus address 0x57.  The canonical "reg" value will be for the RTC portion.
> +
> +Required properties supported by the device:
> +
> + - "compatible": must be "isil,isl12026"
> + - "reg": I2C bus address of the device (always 0x6f)
> +
> +Optional properties:
> +
> + - "isil,pwr-bsw": If present PWR.BSW bit must be set to the specified
> +                   value for proper operation.
> +
> + - "isil,pwr-sbib": If present PWR.SBIB bit must be set to the specified
> +                    value for proper operation.
> +
> +
> +Example:
> +
> +	rtc@6f {

Two seconds after sending, I see that the compatible went missing.

I will wait several days for feedback and resubmit with the proper 
compatible

Sorry for the snafu,
David Daney


> +		reg = <0x6f>;
> +		isil,pwr-bsw = <0>;
> +		isil,pwr-sbib = <1>;
> +	}
>