diff options
Diffstat (limited to 'arch/arm/mach-omap2/i2c.c')
-rw-r--r-- | arch/arm/mach-omap2/i2c.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c index b9d8e47ffe8e..91a21c3923b2 100644 --- a/arch/arm/mach-omap2/i2c.c +++ b/arch/arm/mach-omap2/i2c.c @@ -26,7 +26,6 @@ #include "prm.h" #include "common.h" -#include "mux.h" #include "i2c.h" /* In register I2C_CON, Bit 15 is the I2C enable bit */ @@ -36,20 +35,6 @@ #define MAX_OMAP_I2C_HWMOD_NAME_LEN 16 -static void __init omap2_i2c_mux_pins(int bus_id) -{ - char mux_name[sizeof("i2c2_scl.i2c2_scl")]; - - /* First I2C bus is not muxable */ - if (bus_id == 1) - return; - - sprintf(mux_name, "i2c%i_scl.i2c%i_scl", bus_id, bus_id); - omap_mux_init_signal(mux_name, OMAP_PIN_INPUT); - sprintf(mux_name, "i2c%i_sda.i2c%i_sda", bus_id, bus_id); - omap_mux_init_signal(mux_name, OMAP_PIN_INPUT); -} - /** * omap_i2c_reset - reset the omap i2c module. * @oh: struct omap_hwmod * @@ -107,85 +92,3 @@ int omap_i2c_reset(struct omap_hwmod *oh) return 0; } - -static int __init omap_i2c_nr_ports(void) -{ - int ports = 0; - - if (cpu_is_omap24xx()) - ports = 2; - else if (cpu_is_omap34xx()) - ports = 3; - else if (cpu_is_omap44xx()) - ports = 4; - return ports; -} - -/* - * XXX This function is a temporary compatibility wrapper - only - * needed until the I2C driver can be converted to call - * omap_pm_set_max_dev_wakeup_lat() and handle a return code. - */ -static void omap_pm_set_max_mpu_wakeup_lat_compat(struct device *dev, long t) -{ - omap_pm_set_max_mpu_wakeup_lat(dev, t); -} - -static const char name[] = "omap_i2c"; - -int __init omap_i2c_add_bus(struct omap_i2c_bus_platform_data *i2c_pdata, - int bus_id) -{ - int l; - struct omap_hwmod *oh; - struct platform_device *pdev; - char oh_name[MAX_OMAP_I2C_HWMOD_NAME_LEN]; - struct omap_i2c_bus_platform_data *pdata; - struct omap_i2c_dev_attr *dev_attr; - - if (bus_id > omap_i2c_nr_ports()) - return -EINVAL; - - omap2_i2c_mux_pins(bus_id); - - l = snprintf(oh_name, MAX_OMAP_I2C_HWMOD_NAME_LEN, "i2c%d", bus_id); - WARN(l >= MAX_OMAP_I2C_HWMOD_NAME_LEN, - "String buffer overflow in I2C%d device setup\n", bus_id); - oh = omap_hwmod_lookup(oh_name); - if (!oh) { - pr_err("Could not look up %s\n", oh_name); - return -EEXIST; - } - - pdata = i2c_pdata; - /* - * pass the hwmod class's CPU-specific knowledge of I2C IP revision in - * use, and functionality implementation flags, up to the OMAP I2C - * driver via platform data - */ - pdata->rev = oh->class->rev; - - dev_attr = (struct omap_i2c_dev_attr *)oh->dev_attr; - pdata->flags = dev_attr->flags; - - /* - * When waiting for completion of a i2c transfer, we need to - * set a wake up latency constraint for the MPU. This is to - * ensure quick enough wakeup from idle, when transfer - * completes. - * Only omap3 has support for constraints - */ - if (cpu_is_omap34xx()) - pdata->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat; - pdev = omap_device_build(name, bus_id, oh, pdata, - sizeof(struct omap_i2c_bus_platform_data)); - WARN(IS_ERR(pdev), "Could not build omap_device for %s\n", name); - - return PTR_ERR_OR_ZERO(pdev); -} - -static int __init omap_i2c_cmdline(void) -{ - return omap_register_i2c_bus_cmdline(); -} -omap_subsys_initcall(omap_i2c_cmdline); |