X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=drivers%2Fi2c%2FKconfig;h=f0dc19ac088e609c1fb782b6b773fbc954ce8ce9;hp=e059df992a19f05c849d0a5c5fb5550074fedfc8;hb=8122bb73a48d5c2e376c43c1d5b703516ea944dd;hpb=8f02caac64980faa73b2bf00462b400c86257d04

diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index e059df992a..f0dc19ac08 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -1,14 +1,127 @@
-menuconfig SYS_I2C
-	bool "I2C device support"
+#
+# I2C subsystem configuration
+#
 
-if SYS_I2C
+menu "I2C device support"
 
 config HARD_I2C
 	bool
 
+config SYS_I2C
+	bool
+
+config SYS_I2C_SOFT
+	bool "Software emulated I2C bus driver"
+	depends on SYS_I2C
+
+config DM_I2C
+	bool "Enable Driver Model for I2C drivers"
+	depends on DM
+	help
+	  Enable driver model for I2C. The I2C uclass interface: probe, read,
+	  write and speed, is implemented with the bus drivers operations,
+	  which provide methods for bus setting and data transfer. Each chip
+	  device (bus child) info is kept as parent platdata. The interface
+	  is defined in include/i2c.h. When i2c bus driver supports the i2c
+	  uclass, but the device drivers not, then DM_I2C_COMPAT config can
+	  be used as compatibility layer.
+
+config DM_I2C_COMPAT
+	bool "Enable I2C compatibility layer"
+	depends on DM_I2C
+	help
+	  Enable old-style I2C functions for compatibility with existing code.
+	  This option can be enabled as a temporary measure to avoid needing
+	  to convert all code for a board in a single commit. It should not
+	  be enabled for any board in an official release.
+
+config I2C_CROS_EC_TUNNEL
+	tristate "Chrome OS EC tunnel I2C bus"
+	depends on CROS_EC
+	help
+	  This provides an I2C bus that will tunnel i2c commands through to
+	  the other side of the Chrome OS EC to the I2C bus connected there.
+	  This will work whatever the interface used to talk to the EC (SPI,
+	  I2C or LPC). Some Chromebooks use this when the hardware design
+	  does not allow direct access to the main PMIC from the AP.
+
+config I2C_CROS_EC_LDO
+	bool "Provide access to LDOs on the Chrome OS EC"
+	depends on CROS_EC
+	---help---
+	On many Chromebooks the main PMIC is inaccessible to the AP. This is
+	often dealt with by using an I2C pass-through interface provided by
+	the EC. On some unfortunate models (e.g. Spring) the pass-through
+	is not available, and an LDO message is available instead. This
+	option enables a driver which provides very basic access to those
+	regulators, via the EC. We implement this as an I2C bus	which
+	emulates just the TPS65090 messages we know about. This is done to
+	avoid duplicating the logic in the TPS65090 regulator driver for
+	enabling/disabling an LDO.
+
+config DM_I2C_GPIO
+	bool "Enable Driver Model for software emulated I2C bus driver"
+	depends on DM_I2C && DM_GPIO
+	help
+	  Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO
+	  configuration is given by the device tree. Kernel-style device tree
+	  bindings are supported.
+	  Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt
+
 config SYS_I2C_MXC
 	bool "Freescale i.MX I2C controller"
 	select HARD_I2C
-	select I2C_QUIRK_REG if FSL_LSCH3 || LS102XA
+	select I2C_QUIRK_REG if FSL_LSCH3 || SOC_LS102XA
+
+config I2C_QUIRK_REG
+	bool
+
+config SYS_I2C_SANDBOX
+	bool "Sandbox I2C driver"
+	depends on SANDBOX && DM_I2C
+	help
+	  Enable I2C support for sandbox. This is an emulation of a real I2C
+	  bus. Devices can be attached to the bus using the device tree
+	  which specifies the driver to use. As an example, see this device
+	  tree fragment from sandbox.dts. It shows that the I2C bus has a
+	  single EEPROM at address 0x2c (7-bit address) which is emulated by
+	  the driver for "sandbox,i2c-eeprom", which is in
+	  drivers/misc/i2c_eeprom_emul.c.
+
+	  i2c@0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0>;
+		compatible = "sandbox,i2c";
+		clock-frequency = <400000>;
+		eeprom@2c {
+			reg = <0x2c>;
+			compatible = "i2c-eeprom";
+			emul {
+				compatible = "sandbox,i2c-eeprom";
+				sandbox,filename = "i2c.bin";
+				sandbox,size = <128>;
+			};
+		};
+	};
+
+
+config SYS_I2C_UNIPHIER
+	bool "UniPhier I2C driver"
+	depends on ARCH_UNIPHIER && DM_I2C
+	default y
+	help
+	  Support for UniPhier I2C controller driver.  This I2C controller
+	  is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs.
+
+config SYS_I2C_UNIPHIER_F
+	bool "UniPhier FIFO-builtin I2C driver"
+	depends on ARCH_UNIPHIER && DM_I2C
+	default y
+	help
+	  Support for UniPhier FIFO-builtin I2C controller driver.
+	  This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs.
+
+source "drivers/i2c/muxes/Kconfig"
 
-endif
+endmenu