linux-kernel - Re: [PATCH v5 10/11] nvmem: sunxi: Move the SID driver to the nvmem framework

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Date:	Thu, 18 Jun 2015 14:09:52 +0100
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Stephen Boyd <sboyd@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org
CC:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	Mark Brown <broonie@...nel.org>, s.hauer@...gutronix.de,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	arnd@...db.de, pantelis.antoniou@...sulko.com, mporter@...sulko.com
Subject: Re: [PATCH v5 10/11] nvmem: sunxi: Move the SID driver to the nvmem
 framework



On 17/06/15 00:04, Stephen Boyd wrote:
> On 05/21/2015 09:45 AM, Srinivas Kandagatla wrote:
>> diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile
>> index caea611..cc46791 100644
>> --- a/drivers/nvmem/Makefile
>> +++ b/drivers/nvmem/Makefile
>> @@ -9,3 +9,5 @@ nvmem_core-y			+= nvmem-mmio.o
>>   # Devices
>>   obj-$(CONFIG_QCOM_QFPROM)	+= nvmem_qfprom.o
>>   nvmem_qfprom-y			:= qfprom.o
>> +obj-$(CONFIG_NVMEM_SUNXI_SID)	+= nvmem-sunxi-sid.o
>> +nvmem-sunxi-sid-y		:= sunxi-sid.o
>
> Oh I see, so the module has nvmem- in the name. Isn't there some way to
> add a rule to do that for all provider drivers?
>
I will give it a try, and also fix the other comments on this patch.


>> diff --git a/drivers/nvmem/sunxi-sid.c b/drivers/nvmem/sunxi-sid.c
>> new file mode 100644
>> index 0000000..5bfce35
>> --- /dev/null
>> +++ b/drivers/nvmem/sunxi-sid.c
>> @@ -0,0 +1,64 @@
>> +/*
>> + * Allwinner sunXi SoCs Security ID support.
>> + *
>> + * Copyright (c) 2013 Oliver Schinagl <oliver@...inagl.nl>
>> + * Copyright (C) 2014 Maxime Ripard <maxime.ripard@...e-electrons.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License as published by
>> + * the Free Software Foundation; either version 2 of the License, or
>> + * (at your option) any later version.
>> + *
>> + * This program is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> + * GNU General Public License for more details.
>> + *
>> + */
>> +
>> +#include <linux/module.h>
>> +#include <linux/of.h>
>> +#include "nvmem-mmio.h"
>> +
>> +static bool sunxi_sid_writeable_reg(struct device *dev, unsigned int reg)
>> +{
>> +	return false;
>> +}
>> +
>> +static struct nvmem_config econfig = {
>
> const?
>
>> +	.name = "sunix-sid",
>> +	.owner = THIS_MODULE,
>> +};
>> +
>> +static struct regmap_config sunxi_sid_regmap_config = {
>
> const?
>
>> +	.reg_bits = 32,
>> +	.val_bits = 32,
>> +	.reg_stride = 4,
>> +	.writeable_reg = sunxi_sid_writeable_reg,
>> +};
>> +
>> +static struct nvmem_mmio_data sunxi_data = {
>
> const?
>
>> +	.nvmem_config = &econfig,
>> +	.regmap_config = &sunxi_sid_regmap_config,
>> +};
>> +
>
>
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