249 static int stm32_i2c_check_device_busy(struct stm32_i2c_priv *i2c_priv)  in stm32_i2c_check_device_busy()  argument
251 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_check_device_busy()
260 static void stm32_i2c_message_start(struct stm32_i2c_priv *i2c_priv,  in stm32_i2c_message_start()  argument
263 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_message_start()
304 static void stm32_i2c_handle_reload(struct stm32_i2c_priv *i2c_priv,  in stm32_i2c_handle_reload()  argument
307 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_handle_reload()
322 static int stm32_i2c_wait_flags(struct stm32_i2c_priv *i2c_priv,  in stm32_i2c_wait_flags()  argument
325 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_wait_flags()
341 static int stm32_i2c_check_end_of_message(struct stm32_i2c_priv *i2c_priv)  in stm32_i2c_check_end_of_message()  argument
343 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_check_end_of_message()
349 	ret = stm32_i2c_wait_flags(i2c_priv, mask, &status);  in stm32_i2c_check_end_of_message()
379 		ret = stm32_i2c_wait_flags(i2c_priv, mask, &status);  in stm32_i2c_check_end_of_message()
397 static int stm32_i2c_message_xfer(struct stm32_i2c_priv *i2c_priv,  in stm32_i2c_message_xfer()  argument
400 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_message_xfer()
411 	stm32_i2c_message_start(i2c_priv, msg, stop);  in stm32_i2c_message_xfer()
418 		ret = stm32_i2c_wait_flags(i2c_priv, mask, &status);  in stm32_i2c_message_xfer()
440 			ret = stm32_i2c_wait_flags(i2c_priv, mask, &status);  in stm32_i2c_message_xfer()
449 			stm32_i2c_handle_reload(i2c_priv, msg, stop);  in stm32_i2c_message_xfer()
453 			ret = stm32_i2c_wait_flags(i2c_priv, mask, &status);  in stm32_i2c_message_xfer()
467 	return stm32_i2c_check_end_of_message(i2c_priv);  in stm32_i2c_message_xfer()
473 	struct stm32_i2c_priv *i2c_priv = dev_get_priv(bus);  in stm32_i2c_xfer()  local
476 	ret = stm32_i2c_check_device_busy(i2c_priv);  in stm32_i2c_xfer()
481 		ret = stm32_i2c_message_xfer(i2c_priv, msg, nmsgs == 1);  in stm32_i2c_xfer()
637 static int stm32_i2c_compute_timing(struct stm32_i2c_priv *i2c_priv,  in stm32_i2c_compute_timing()  argument
703 static int stm32_i2c_setup_timing(struct stm32_i2c_priv *i2c_priv,  in stm32_i2c_setup_timing()  argument
706 	struct stm32_i2c_setup *setup = i2c_priv->setup;  in stm32_i2c_setup_timing()
709 	setup->speed = i2c_priv->speed;  in stm32_i2c_setup_timing()
711 	setup->clock_src = clk_get_rate(&i2c_priv->clk);  in stm32_i2c_setup_timing()
719 		ret = stm32_i2c_compute_timing(i2c_priv, setup, timing);  in stm32_i2c_setup_timing()
723 			if (i2c_priv->speed > STM32_I2C_SPEED_STANDARD) {  in stm32_i2c_setup_timing()
724 				i2c_priv->speed--;  in stm32_i2c_setup_timing()
725 				setup->speed = i2c_priv->speed;  in stm32_i2c_setup_timing()
751 static int stm32_i2c_hw_config(struct stm32_i2c_priv *i2c_priv)  in stm32_i2c_hw_config()  argument
753 	struct stm32_i2c_regs *regs = i2c_priv->regs;  in stm32_i2c_hw_config()
758 	ret = stm32_i2c_setup_timing(i2c_priv, &t);  in stm32_i2c_hw_config()
774 	if (i2c_priv->setup->analog_filter)  in stm32_i2c_hw_config()
785 	struct stm32_i2c_priv *i2c_priv = dev_get_priv(bus);  in stm32_i2c_set_bus_speed()  local
789 		i2c_priv->speed = STM32_I2C_SPEED_STANDARD;  in stm32_i2c_set_bus_speed()
792 		i2c_priv->speed = STM32_I2C_SPEED_FAST;  in stm32_i2c_set_bus_speed()
795 		i2c_priv->speed = STM32_I2C_SPEED_FAST_PLUS;  in stm32_i2c_set_bus_speed()
802 	return stm32_i2c_hw_config(i2c_priv);  in stm32_i2c_set_bus_speed()
807 	struct stm32_i2c_priv *i2c_priv = dev_get_priv(dev);  in stm32_i2c_probe()  local
816 	i2c_priv->regs = (struct stm32_i2c_regs *)addr;  in stm32_i2c_probe()
818 	ret = clk_get_by_index(dev, 0, &i2c_priv->clk);  in stm32_i2c_probe()
822 	ret = clk_enable(&i2c_priv->clk);  in stm32_i2c_probe()
837 	clk_disable(&i2c_priv->clk);  in stm32_i2c_probe()
839 	clk_free(&i2c_priv->clk);  in stm32_i2c_probe()
846 	struct stm32_i2c_priv *i2c_priv = dev_get_priv(dev);  in stm32_ofdata_to_platdata()  local
849 	i2c_priv->setup = (struct stm32_i2c_setup *)dev_get_driver_data(dev);  in stm32_ofdata_to_platdata()
850 	if (!i2c_priv->setup)  in stm32_ofdata_to_platdata()
855 		i2c_priv->setup->rise_time = rise_time;  in stm32_ofdata_to_platdata()
859 		i2c_priv->setup->fall_time = fall_time;  in stm32_ofdata_to_platdata()