static inline int omap2_i2c_add_bus(int bus_id) { int l; struct omap_hwmod *oh; struct omap_device *od; char oh_name[MAX_OMAP_I2C_HWMOD_NAME_LEN]; struct omap_i2c_bus_platform_data *pdata; 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[bus_id - 1]; /* * 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() || cpu_is_omap44xx()) pdata->needs_wakeup_latency = true; pdata->device_reset = omap2_i2c_reset; od = omap_device_build(name, bus_id, oh, pdata, sizeof(struct omap_i2c_bus_platform_data), omap_i2c_latency, ARRAY_SIZE(omap_i2c_latency), 0); WARN(IS_ERR(od), "Could not build omap_device for %s\n", name); return PTR_ERR(od); }
static inline int omap2_i2c_add_bus(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; 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[bus_id - 1]; /* * 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; pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(struct omap_i2c_bus_platform_data), NULL, 0, 0); WARN(IS_ERR(pdev), "Could not build omap_device for %s\n", name); return PTR_RET(pdev); }