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[PATCH] nvmem: sunxi-sid: add support for A64/H5's SID controller

From Icenowy Zheng <icenowy@aosc.io>
Newsgroups linux.kernel
Subject [PATCH] nvmem: sunxi-sid: add support for A64/H5's SID controller
Date 2017-09-18 17:50 +0200
Message-ID <ur6t4-88P-27@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Allwinner A64/H5 SoCs come with a SID controller like the one in H3, but
without the silicon bug that makes the initial value at 0x200 wrong, so
the value at 0x200 can be directly read.

Add support for this kind of SID controller.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
 Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt | 1 +
 drivers/nvmem/sunxi_sid.c                                       | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt
index ef06d061913c..6ea0836939ee 100644
--- a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt
+++ b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt
@@ -5,6 +5,7 @@ Required properties:
   "allwinner,sun4i-a10-sid"
   "allwinner,sun7i-a20-sid"
   "allwinner,sun8i-h3-sid"
+  "allwinner,sun50i-a64-sid"
 
 - reg: Should contain registers location and length
 
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index 0d6648be93b8..3c9fd4fb9207 100644
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -199,10 +199,16 @@ static const struct sunxi_sid_cfg sun8i_h3_cfg = {
 	.need_register_readout = true,
 };
 
+static const struct sunxi_sid_cfg sun50i_a64_cfg = {
+	.value_offset = 0x200,
+	.size = 0x100,
+};
+
 static const struct of_device_id sunxi_sid_of_match[] = {
 	{ .compatible = "allwinner,sun4i-a10-sid", .data = &sun4i_a10_cfg },
 	{ .compatible = "allwinner,sun7i-a20-sid", .data = &sun7i_a20_cfg },
 	{ .compatible = "allwinner,sun8i-h3-sid", .data = &sun8i_h3_cfg },
+	{ .compatible = "allwinner,sun50i-a64-sid", .data = &sun50i_a64_cfg },
 	{/* sentinel */},
 };
 MODULE_DEVICE_TABLE(of, sunxi_sid_of_match);
-- 
2.13.5

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Thread

[PATCH] nvmem: sunxi-sid: add support for A64/H5's SID controller Icenowy Zheng <icenowy@aosc.io> - 2017-09-18 17:50 +0200
  Re: [PATCH] nvmem: sunxi-sid: add support for A64/H5's SID controller Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-09-19 10:30 +0200
    Re: [linux-sunxi] Re: [PATCH] nvmem: sunxi-sid: add support for A64/H5's SID controller Icenowy Zheng <icenowy@aosc.io> - 2017-09-19 11:00 +0200
      Re: [linux-sunxi] Re: [PATCH] nvmem: sunxi-sid: add support for  A64/H5's SID controller Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-09-19 14:00 +0200
        Re: [linux-sunxi] Re: [PATCH] nvmem: sunxi-sid: add support for  A64/H5's SID controller icenowy@aosc.io - 2017-09-19 14:20 +0200
  Re: [PATCH] nvmem: sunxi-sid: add support for A64/H5's SID controller Rob Herring <robh@kernel.org> - 2017-09-22 01:20 +0200

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