mediatek: add support for the new MT7623 Arm SoC

[openwrt/svn-archive/archive.git] / target / linux / mediatek / patches / 0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch

diff --git a/target/linux/mediatek/patches/0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch b/target/linux/mediatek/patches/0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch
new file mode 100644 (file)
index 0000000..03f03fb
--- /dev/null
+++ b/target/linux/mediatek/patches/0029-dt-bindings-Add-I2C-bindings-for-mt65xx-mt81xx.patch
@@ -0,0 +1,64 @@
+From d1447a6815913823ef5e75d70efc6f08f288ee40 Mon Sep 17 00:00:00 2001
+From: Xudong Chen <xudong.chen@mediatek.com>
+Date: Wed, 6 May 2015 16:37:05 +0800
+Subject: [PATCH 29/76] dt-bindings: Add I2C bindings for mt65xx/mt81xx.
+
+Add devicetree bindings for Mediatek Soc I2C driver.
+
+Signed-off-by: Xudong Chen <xudong.chen@mediatek.com>
+Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
+---
+ .../devicetree/bindings/i2c/i2c-mt6577.txt         |   41 ++++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+
+diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+new file mode 100644
+index 0000000..0ce6fa3
+--- /dev/null
++++ b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+@@ -0,0 +1,41 @@
++* Mediatek's I2C controller
++
++The Mediatek's I2C controller is used to interface with I2C devices.
++
++Required properties:
++  - compatible: value should be either of the following.
++      (a) "mediatek,mt6577-i2c", for i2c compatible with mt6577 i2c.
++      (b) "mediatek,mt6589-i2c", for i2c compatible with mt6589 i2c.
++      (c) "mediatek,mt8127-i2c", for i2c compatible with mt8127 i2c.
++      (d) "mediatek,mt8135-i2c", for i2c compatible with mt8135 i2c.
++      (e) "mediatek,mt8173-i2c", for i2c compatible with mt8173 i2c.
++  - reg: physical base address of the controller and dma base, length of memory
++    mapped region.
++  - interrupts: interrupt number to the cpu.
++  - clock-div: the fixed value for frequency divider of clock source in i2c
++    module. Each IC may be different.
++  - clocks: clock name from clock manager
++  - clock-names: Must include "main" and "dma", if enable have-pmic need include
++    "pmic" extra.
++
++Optional properties:
++  - clock-frequency: Frequency in Hz of the bus when transfer, the default value
++    is 100000.
++  - mediatek,have-pmic: platform can control i2c form special pmic side.
++    Only mt6589 and mt8135 support this feature.
++  - mediatek,use-push-pull: IO config use push-pull mode.
++
++Example:
++
++      i2c0: i2c@1100d000 {
++                      compatible = "mediatek,mt6577-i2c";
++                      reg = <0x1100d000 0x70>,
++                            <0x11000300 0x80>;
++                      interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
++                      clock-frequency = <400000>;
++                      mediatek,have-pmic;
++                      clock-div = <16>;
++                      clocks = <&i2c0_ck>, <&ap_dma_ck>;
++                      clock-names = "main", "dma";
++      };
++
+-- 
+1.7.10.4
+