Unverified Commit 9c9924e4 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!2564 [openEuler-1.0-LTS] Add Phytium i2c driver support 

Merge Pull Request from: @shuaijiakun 
 
Add Phytium i2c driver for Phytium desktop and embedded platforms.
    
By the way, the ACPI support of this driver is also added in this commit. 
 
Link:https://gitee.com/openeuler/kernel/pulls/2564

 

Reviewed-by: default avatarXie XiuQi <xiexiuqi@huawei.com>
Reviewed-by: default avatarMao HongBo <maohongbo@phytium.com.cn>
Reviewed-by: default avatarXiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents ffc79dd7 777b12af

Documentation/devicetree/bindings/i2c/i2c-phytium.txt

0 → 100644
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* Phytium I2C/SMBus controller



Required properties :



 - compatible : should be "phytium,i2c"

 - reg : Offset and length of the register set for the device

 - interrupts : <IRQ> where IRQ is the interrupt number.

 - clock-frequency : desired I2C bus clock frequency in Hz.



Optional properties:



 - interrupt-names: should be "smbus_alert" if SMBus alert

		    interrupt is supported.



Examples :



	i2c0: i2c@28011000 {

		compatible = "phytium,i2c";

		reg = <0x0 0x28011000 0x0 0x1000>;

		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;

		interrupt-names = "smbus_alert";

		clocks = <&sysclk_48mhz>;

	};

drivers/acpi/acpi_apd.c

+12 −0
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@@ -165,6 +165,16 @@ static const struct apd_device_desc hip08_i2c_desc = { 
	.fixed_clk_rate = 250000000,

};



static const struct apd_device_desc phytium_i2c_desc = {

	.setup = acpi_apd_setup,

	.fixed_clk_rate = 200000000,

};



static const struct apd_device_desc phytium_pe220x_i2c_desc = {

	.setup = acpi_apd_setup,

	.fixed_clk_rate = 50000000,

};



static const struct apd_device_desc hip08_lite_i2c_desc = {

	.setup = acpi_apd_setup,

	.fixed_clk_rate = 125000000,
@@ -250,6 +260,8 @@ static const struct acpi_device_id acpi_apd_device_ids[] = { 
	{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },

	{ "HISI02A3", APD_ADDR(hip08_lite_i2c_desc) },

	{ "HISI0173", APD_ADDR(hip08_spi_desc) },

	{ "PHYT0003", APD_ADDR(phytium_i2c_desc) },

	{ "PHYT0038", APD_ADDR(phytium_pe220x_i2c_desc) },

#endif

	{ }

};

drivers/i2c/busses/Kconfig

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@@ -544,6 +544,34 @@ config I2C_DESIGNWARE_BAYTRAIL 
	  the platform firmware controlling it. You should say Y if running on

	  a BayTrail system using the AXP288.



config I2C_PHYTIUM_CORE

	tristate



config I2C_PHYTIUM_PCI

	tristate "Phytium I2C PCI"

	depends on PCI && ARCH_PHYTIUM

	select I2C_PHYTIUM_CORE

	select I2C_SMBUS

	help

	  If you say yes to this option, support will be included for the

	  Phytium I2C adapter. Only master mode is supported.



	  This driver can also be built as a module.  If so, the module

	  will be called i2c-phytium-pci.



config I2C_PHYTIUM_PLATFORM

	tristate "Phytium I2C Platform"

	depends on (ACPI && COMMON_CLK) || !ACPI

	select I2C_SLAVE

	select I2C_PHYTIUM_CORE

	select I2C_SMBUS

	help

	  If you say yes to this option, support will be included for the

	  Phytium I2C adapter. Only master mode is supported.



	  This driver can also be built as a module.  If so, the module

	  will be called i2c-phytium-platform.



config I2C_DIGICOLOR

	tristate "Conexant Digicolor I2C driver"

	depends on ARCH_DIGICOLOR

drivers/i2c/busses/Makefile

+4 −0
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@@ -54,6 +54,10 @@ i2c-designware-platform-$(CONFIG_I2C_DESIGNWARE_BAYTRAIL) += i2c-designware-bayt 
obj-$(CONFIG_I2C_DESIGNWARE_PCI)	+= i2c-designware-pci.o

i2c-designware-pci-objs := i2c-designware-pcidrv.o

obj-$(CONFIG_I2C_DIGICOLOR)	+= i2c-digicolor.o

obj-$(CONFIG_I2C_PHYTIUM_CORE)	+= i2c-phytium-core.o

i2c-phytium-core-objs := i2c-phytium-common.o i2c-phytium-master.o i2c-phytium-slave.o

obj-$(CONFIG_I2C_PHYTIUM_PCI)	+= i2c-phytium-pci.o

obj-$(CONFIG_I2C_PHYTIUM_PLATFORM)	+= i2c-phytium-platform.o

obj-$(CONFIG_I2C_EFM32)		+= i2c-efm32.o

obj-$(CONFIG_I2C_EG20T)		+= i2c-eg20t.o

obj-$(CONFIG_I2C_EMEV2)		+= i2c-emev2.o

drivers/i2c/busses/i2c-designware-platdrv.c

+1 −0
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@@ -152,6 +152,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = { 
	{ "HISI02A1", 0 },

	{ "HISI02A2", 0 },

	{ "HISI02A3", 0 },

	{ "PHYT0003", 0 },

	{ "HYGO0010", ACCESS_INTR_MASK },

	{ }

};