2  * Copyright (c) 2002-2010, Intel Corporation.
27 #include <linux/i2c-algo-bit.h>
41  * LPC GPIO based I2C bus for LVDS of Atom E6xx
44 /*-----------------------------------------------------------------------------
45  * LPC Register Offsets. Used for LVDS GPIO Bit Bashing. Registers are part
47  ----------------------------------------------------------------------------*/
57 /* The LVDS GPIO clock lines are GPIOSUS[3]
58  * The LVDS GPIO data lines are GPIOSUS[4]
63 #define LPC_READ_REG(chan, r) inl((chan)->reg + (r))
64 #define LPC_WRITE_REG(chan, r, val) outl((val), (chan)->reg + (r))
132 void oaktrail_lvds_i2c_init(struct drm_encoder *encoder)  in oaktrail_lvds_i2c_init()  argument
134 	struct drm_device *dev = encoder->dev;  in oaktrail_lvds_i2c_init()
135 	struct gma_encoder *gma_encoder = to_gma_encoder(encoder);  in oaktrail_lvds_i2c_init()
136 	struct drm_psb_private *dev_priv = dev->dev_private;  in oaktrail_lvds_i2c_init()
143 	chan->drm_dev = dev;  in oaktrail_lvds_i2c_init()
144 	chan->reg = dev_priv->lpc_gpio_base;  in oaktrail_lvds_i2c_init()
145 	strncpy(chan->adapter.name, "gma500 LPC",  I2C_NAME_SIZE - 1);  in oaktrail_lvds_i2c_init()
146 	chan->adapter.owner = THIS_MODULE;  in oaktrail_lvds_i2c_init()
147 	chan->adapter.algo_data = &chan->algo;  in oaktrail_lvds_i2c_init()
148 	chan->adapter.dev.parent = &dev->pdev->dev;  in oaktrail_lvds_i2c_init()
149 	chan->algo.setsda = set_data;  in oaktrail_lvds_i2c_init()
150 	chan->algo.setscl = set_clock;  in oaktrail_lvds_i2c_init()
151 	chan->algo.getsda = get_data;  in oaktrail_lvds_i2c_init()
152 	chan->algo.getscl = get_clock;  in oaktrail_lvds_i2c_init()
153 	chan->algo.udelay = 100;  in oaktrail_lvds_i2c_init()
154 	chan->algo.timeout = usecs_to_jiffies(2200);  in oaktrail_lvds_i2c_init()
155 	chan->algo.data = chan;  in oaktrail_lvds_i2c_init()
157 	i2c_set_adapdata(&chan->adapter, chan);  in oaktrail_lvds_i2c_init()
163 	if (i2c_bit_add_bus(&chan->adapter)) {  in oaktrail_lvds_i2c_init()
168 	gma_encoder->ddc_bus = chan;  in oaktrail_lvds_i2c_init()