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i2c: brcmstb: Add Broadcom settop SoC i2c controller driver

PATCH In review Kamal Dasu 2 participants 3 messages Jun 9, 2015 – Jun 10, 2015 1 message not in the archive

Subsystems (4)
Device tree bindings I2C subsystem host drivers Broadcom BCM7XXX Arm architecture Broadcom brcmstb I2C driver
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Kamal Dasu

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PATCH v5 1/2 i2c: brcmstb: Add Broadcom settop SoC i2c controller driver

Adding support for i2c controller driver for Broadcom settop SoCs.

Signed-off-by Kamal Dasu <[email protected]>

---
V5 Changes:
Removed unnecessary dev_err logging Changed intr timeout dev_err(...) to dev_dbg(...)

---
 drivers/i2c/busses/Kconfig       |  10 +
 drivers/i2c/busses/Makefile      |   1 +
 drivers/i2c/busses/i2c-brcmstb.c | 695 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 706 insertions(+)
 create mode 100644 drivers/i2c/busses/i2c-brcmstb.c
drivers/i2c/busses/Kconfig +10 -0
index 2255af2..c35903a 100644
@@ -392,6 +392,16 @@ config I2C_BCM_KONA
 
 	  If you do not need KONA I2C interface, say N.
 
+config I2C_BRCMSTB
+	tristate "BRCM Settop I2C controller"
+	depends on ARCH_BRCMSTB || COMPILE_TEST
+	default y
+	help
+	  If you say yes to this option, support will be included for the
+	  I2C interface on the Broadcom Settop SoCs.
+
+	  If you do not need I2C interface, say N.
+
 config I2C_BLACKFIN_TWI
 	tristate "Blackfin TWI I2C support"
 	depends on BLACKFIN
drivers/i2c/busses/Makefile +1 -0
index cdf941d..aedea68 100644
@@ -105,6 +105,7 @@ obj-$(CONFIG_I2C_VIPERBOARD)	+= i2c-viperboard.o
 # Other I2C/SMBus bus drivers
 obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
 obj-$(CONFIG_I2C_BCM_KONA)	+= i2c-bcm-kona.o
+obj-$(CONFIG_I2C_BRCMSTB)	+= i2c-brcmstb.o
 obj-$(CONFIG_I2C_CROS_EC_TUNNEL)	+= i2c-cros-ec-tunnel.o
 obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
 obj-$(CONFIG_I2C_OPAL)		+= i2c-opal.o
drivers/i2c/busses/i2c-brcmstb.c new file +695 -0

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#2 lore raw

PATCH v5 2/2 dt-bindings: i2c: Add i2c-brcmstb dt bindings

i2c Device tree binding documentation for brcmstb
SoCs.

Signed-off-by Kamal Dasu <[email protected]>
---
 .../devicetree/bindings/i2c/i2c-brcmstb.txt        | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-brcmstb.txt
Documentation/devicetree/bindings/i2c/i2c-brcmstb.txt new file +28 -0
new file mode 100644
index 0000000..d6f724e
@@ -0,0 +1,28 @@
+Broadcom stb bsc iic master controller
+
+Required properties:
+
+- compatible: should be "brcm,brcmstb-i2c"
+- clock-frequency: 32-bit decimal value of iic master clock freqency in Hz
+		   valid values are 375000, 390000, 187500, 200000
+		   93750, 97500, 46875 and 50000
+- reg: specifies the base physical address and size of the registers
+
+Optional properties :
+
+- interrupt-parent: specifies the phandle to the parent interrupt controller
+  this one is cascaded from
+- interrupts: specifies the interrupt number, the irq line to be used
+- interrupt-names: Interrupt name string
+
+Example:
+
+bsca: i2c@f0406200 {
+      clock-frequency = <390000>;
+      compatible = "brcm,brcmstb-i2c";
+      interrupt-parent = <&irq0_intc>;
+      reg = <0xf0406200 0x58>;
+      interrupts = <0x18>;
+      interrupt-names = "upg_bsca";
+};
+
Signature · 1 line
2.3.2