From b0e6ef46405353270595ffa35c21f4334c541189 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 10 Dec 2014 08:55:57 -0700 Subject: dm: i2c: tegra: Convert to driver model This converts all Tegra boards over to use driver model for I2C. The driver is adjusted to use driver model and the following obsolete CONFIGs are removed: - CONFIG_SYS_I2C_INIT_BOARD - CONFIG_I2C_MULTI_BUS - CONFIG_SYS_MAX_I2C_BUS - CONFIG_SYS_I2C_SPEED - CONFIG_SYS_I2C This has been tested on: - trimslice (no I2C) - beaver - Jetson-TK1 It has not been tested on Tegra 114 as I don't have that board. Acked-by: Heiko Schocher Signed-off-by: Simon Glass --- arch/arm/cpu/tegra20-common/pmu.c | 21 ++++++++++++++++----- arch/arm/dts/tegra124-jetson-tk1.dts | 1 - arch/arm/dts/tegra30-tec-ng.dts | 4 ++++ arch/arm/include/asm/arch-tegra/tegra_i2c.h | 2 +- 4 files changed, 21 insertions(+), 7 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/tegra20-common/pmu.c b/arch/arm/cpu/tegra20-common/pmu.c index c595f70..36a76a2 100644 --- a/arch/arm/cpu/tegra20-common/pmu.c +++ b/arch/arm/cpu/tegra20-common/pmu.c @@ -6,6 +6,7 @@ */ #include +#include #include #include #include @@ -23,9 +24,13 @@ #define VDD_TRANSITION_STEP 0x06 /* 150mv */ #define VDD_TRANSITION_RATE 0x06 /* 3.52mv/us */ +#define PMI_I2C_ADDRESS 0x34 /* chip requires this address */ + int pmu_set_nominal(void) { - int core, cpu, bus; + struct udevice *bus, *dev; + int core, cpu; + int ret; /* by default, the table has been filled with T25 settings */ switch (tegra_get_chip_sku()) { @@ -42,12 +47,18 @@ int pmu_set_nominal(void) return -1; } - bus = tegra_i2c_get_dvc_bus_num(); - if (bus == -1) { + ret = tegra_i2c_get_dvc_bus(&bus); + if (ret) { debug("%s: Cannot find DVC I2C bus\n", __func__); - return -1; + return ret; } - tps6586x_init(bus); + ret = i2c_get_chip(bus, PMI_I2C_ADDRESS, &dev); + if (ret) { + debug("%s: Cannot find DVC I2C chip\n", __func__); + return ret; + } + + tps6586x_init(dev); tps6586x_set_pwm_mode(TPS6586X_PWM_SM1); return tps6586x_adjust_sm0_sm1(core, cpu, VDD_TRANSITION_STEP, VDD_TRANSITION_RATE, VDD_RELATION); diff --git a/arch/arm/dts/tegra124-jetson-tk1.dts b/arch/arm/dts/tegra124-jetson-tk1.dts index ffad116..f6fe9a0 100644 --- a/arch/arm/dts/tegra124-jetson-tk1.dts +++ b/arch/arm/dts/tegra124-jetson-tk1.dts @@ -16,7 +16,6 @@ i2c2 = "/i2c@7000c400"; i2c3 = "/i2c@7000c500"; i2c4 = "/i2c@7000c700"; - i2c5 = "/i2c@7000d100"; sdhci0 = "/sdhci@700b0600"; sdhci1 = "/sdhci@700b0400"; spi0 = "/spi@7000d400"; diff --git a/arch/arm/dts/tegra30-tec-ng.dts b/arch/arm/dts/tegra30-tec-ng.dts index 8a69e81..e924acc 100644 --- a/arch/arm/dts/tegra30-tec-ng.dts +++ b/arch/arm/dts/tegra30-tec-ng.dts @@ -6,6 +6,10 @@ model = "Avionic Design Tamonten™ NG Evaluation Carrier"; compatible = "ad,tec-ng", "nvidia,tegra30"; + aliases { + i2c0 = "/i2c@7000c400"; + }; + /* GEN2 */ i2c@7000c400 { status = "okay"; diff --git a/arch/arm/include/asm/arch-tegra/tegra_i2c.h b/arch/arm/include/asm/arch-tegra/tegra_i2c.h index 7ca6907..eeeb247 100644 --- a/arch/arm/include/asm/arch-tegra/tegra_i2c.h +++ b/arch/arm/include/asm/arch-tegra/tegra_i2c.h @@ -167,6 +167,6 @@ struct i2c_ctlr { * * @return number of bus, or -1 if there is no DVC active */ -int tegra_i2c_get_dvc_bus_num(void); +int tegra_i2c_get_dvc_bus(struct udevice **busp); #endif /* _TEGRA_I2C_H_ */ -- cgit v1.1