From: Finley Xiao <finley.xiao@rock-chips.com>
To: srinivas.kandagatla@linaro.org, robh+dt@kernel.org,
mark.rutland@arm.com, heiko@sntech.de
Cc: linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, jay.xu@rock-chips.com,
huangtao@rock-chips.com, tony.xie@rock-chips.com,
cl@rock-chips.com, Finley Xiao <finley.xiao@rock-chips.com>
Subject: [PATCH 1/2] nvmem: rockchip-efuse: parse 'rockchip,efuse-size'
Date: Thu, 6 Jul 2017 15:36:36 +0800 [thread overview]
Message-ID: <1499326597-10821-2-git-send-email-finley.xiao@rock-chips.com> (raw)
In-Reply-To: <1499326597-10821-1-git-send-email-finley.xiao@rock-chips.com>
The eFuse size is defined in property <reg> before, but the length
of registers is not equal to the size on some platforms, so we
add a new property to redefine it.
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
---
Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt | 4 ++++
drivers/nvmem/rockchip-efuse.c | 4 +++-
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
index 194926f..d206aa1 100644
--- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
+++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
@@ -11,6 +11,10 @@ Required properties:
- clocks: Should be the clock id of eFuse
- clock-names: Should be "pclk_efuse"
+Optional properties:
+- rockchip,efuse-size: Should be exact eFuse size in byte, the eFuse
+ size in property <reg> will be invalid if define this property.
+
Deprecated properties:
- compatible: "rockchip,rockchip-efuse"
Old efuse compatible value compatible to rk3066a, rk3188 and rk3288
diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c
index a0d4ede..8e3e5d0 100644
--- a/drivers/nvmem/rockchip-efuse.c
+++ b/drivers/nvmem/rockchip-efuse.c
@@ -214,7 +214,9 @@ static int rockchip_efuse_probe(struct platform_device *pdev)
return PTR_ERR(efuse->clk);
efuse->dev = &pdev->dev;
- econfig.size = resource_size(res);
+ if (of_property_read_u32(dev->of_node, "rockchip,efuse-size",
+ &econfig.size))
+ econfig.size = resource_size(res);
econfig.reg_read = match->data;
econfig.priv = efuse;
econfig.dev = efuse->dev;
--
2.7.4
next prev parent reply other threads:[~2017-07-06 7:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-06 7:36 [PATCH 0/2] nvmem: rockchip-efuse: add support for rk3328-efuse Finley Xiao
2017-07-06 7:36 ` Finley Xiao [this message]
2017-07-10 1:26 ` [PATCH 1/2] nvmem: rockchip-efuse: parse 'rockchip,efuse-size' Rob Herring
2017-07-06 7:36 ` [PATCH 2/2] nvmem: rockchip-efuse: add support for rk3328-efuse Finley Xiao
2017-07-10 1:26 ` Rob Herring
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