102 static u32 get_reserved(struct intel_gpio *gpio)  in get_reserved()  argument
104 	struct drm_psb_private *dev_priv = gpio->dev_priv;  in get_reserved()
108 	reserved = GMBUS_REG_READ(gpio->reg) &  in get_reserved()
117 	struct intel_gpio *gpio = data;  in get_clock()  local
118 	struct drm_psb_private *dev_priv = gpio->dev_priv;  in get_clock()
119 	u32 reserved = get_reserved(gpio);  in get_clock()
120 	GMBUS_REG_WRITE(gpio->reg, reserved | GPIO_CLOCK_DIR_MASK);  in get_clock()
121 	GMBUS_REG_WRITE(gpio->reg, reserved);  in get_clock()
122 	return (GMBUS_REG_READ(gpio->reg) & GPIO_CLOCK_VAL_IN) != 0;  in get_clock()
127 	struct intel_gpio *gpio = data;  in get_data()  local
128 	struct drm_psb_private *dev_priv = gpio->dev_priv;  in get_data()
129 	u32 reserved = get_reserved(gpio);  in get_data()
130 	GMBUS_REG_WRITE(gpio->reg, reserved | GPIO_DATA_DIR_MASK);  in get_data()
131 	GMBUS_REG_WRITE(gpio->reg, reserved);  in get_data()
132 	return (GMBUS_REG_READ(gpio->reg) & GPIO_DATA_VAL_IN) != 0;  in get_data()
137 	struct intel_gpio *gpio = data;  in set_clock()  local
138 	struct drm_psb_private *dev_priv = gpio->dev_priv;  in set_clock()
139 	u32 reserved = get_reserved(gpio);  in set_clock()
148 	GMBUS_REG_WRITE(gpio->reg, reserved | clock_bits);  in set_clock()
149 	GMBUS_REG_READ(gpio->reg); /* Posting */  in set_clock()
154 	struct intel_gpio *gpio = data;  in set_data()  local
155 	struct drm_psb_private *dev_priv = gpio->dev_priv;  in set_data()
156 	u32 reserved = get_reserved(gpio);  in set_data()
165 	GMBUS_REG_WRITE(gpio->reg, reserved | data_bits);  in set_data()
166 	GMBUS_REG_READ(gpio->reg);  in set_data()
182 	struct intel_gpio *gpio;  in intel_gpio_create()  local
187 	gpio = kzalloc(sizeof(struct intel_gpio), GFP_KERNEL);  in intel_gpio_create()
188 	if (gpio == NULL)  in intel_gpio_create()
191 	gpio->reg = map_pin_to_reg[pin];  in intel_gpio_create()
192 	gpio->dev_priv = dev_priv;  in intel_gpio_create()
194 	snprintf(gpio->adapter.name, sizeof(gpio->adapter.name),  in intel_gpio_create()
196 	gpio->adapter.owner = THIS_MODULE;  in intel_gpio_create()
197 	gpio->adapter.algo_data	= &gpio->algo;  in intel_gpio_create()
198 	gpio->adapter.dev.parent = &dev_priv->dev->pdev->dev;  in intel_gpio_create()
199 	gpio->algo.setsda = set_data;  in intel_gpio_create()
200 	gpio->algo.setscl = set_clock;  in intel_gpio_create()
201 	gpio->algo.getsda = get_data;  in intel_gpio_create()
202 	gpio->algo.getscl = get_clock;  in intel_gpio_create()
203 	gpio->algo.udelay = I2C_RISEFALL_TIME;  in intel_gpio_create()
204 	gpio->algo.timeout = usecs_to_jiffies(2200);  in intel_gpio_create()
205 	gpio->algo.data = gpio;  in intel_gpio_create()
207 	if (i2c_bit_add_bus(&gpio->adapter))  in intel_gpio_create()
210 	return &gpio->adapter;  in intel_gpio_create()
213 	kfree(gpio);  in intel_gpio_create()
223 	struct intel_gpio *gpio = container_of(adapter,  in intel_i2c_quirk_xfer()  local
231 	set_data(gpio, 1);  in intel_i2c_quirk_xfer()
232 	set_clock(gpio, 1);  in intel_i2c_quirk_xfer()
237 	set_data(gpio, 1);  in intel_i2c_quirk_xfer()
238 	set_clock(gpio, 1);  in intel_i2c_quirk_xfer()