96  * driver for the Chrontel 7xxx DVI chip over DVO.
147 static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)  in ch7xxx_readb()  argument
149 	struct ch7xxx_priv *ch7xxx = dvo->dev_priv;  in ch7xxx_readb()
150 	struct i2c_adapter *adapter = dvo->i2c_bus;  in ch7xxx_readb()
156 			.addr = dvo->target_addr,  in ch7xxx_readb()
162 			.addr = dvo->target_addr,  in ch7xxx_readb()
179 			  addr, adapter->name, dvo->target_addr);  in ch7xxx_readb()
185 static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)  in ch7xxx_writeb()  argument
187 	struct ch7xxx_priv *ch7xxx = dvo->dev_priv;  in ch7xxx_writeb()
188 	struct i2c_adapter *adapter = dvo->i2c_bus;  in ch7xxx_writeb()
191 		.addr = dvo->target_addr,  in ch7xxx_writeb()
205 			  addr, adapter->name, dvo->target_addr);  in ch7xxx_writeb()
211 static bool ch7xxx_init(struct intel_dvo_device *dvo,  in ch7xxx_init()  argument
223 	dvo->i2c_bus = adapter;  in ch7xxx_init()
224 	dvo->dev_priv = ch7xxx;  in ch7xxx_init()
227 	if (!ch7xxx_readb(dvo, CH7xxx_REG_VID, &vendor))  in ch7xxx_init()
233 			      vendor, adapter->name, dvo->target_addr);  in ch7xxx_init()
238 	if (!ch7xxx_readb(dvo, CH7xxx_REG_DID, &device))  in ch7xxx_init()
244 			      device, adapter->name, dvo->target_addr);  in ch7xxx_init()
257 static enum drm_connector_status ch7xxx_detect(struct intel_dvo_device *dvo)  in ch7xxx_detect()  argument
261 	ch7xxx_readb(dvo, CH7xxx_PM, &orig_pm);  in ch7xxx_detect()
267 	ch7xxx_writeb(dvo, CH7xxx_PM, pm);  in ch7xxx_detect()
269 	ch7xxx_readb(dvo, CH7xxx_CONNECTION_DETECT, &cdet);  in ch7xxx_detect()
271 	ch7xxx_writeb(dvo, CH7xxx_PM, orig_pm);  in ch7xxx_detect()
278 static enum drm_mode_status ch7xxx_mode_valid(struct intel_dvo_device *dvo,  in ch7xxx_mode_valid()  argument
287 static void ch7xxx_mode_set(struct intel_dvo_device *dvo,  in ch7xxx_mode_set()  argument
305 	ch7xxx_writeb(dvo, CH7xxx_TCTL, 0x00);  in ch7xxx_mode_set()
306 	ch7xxx_writeb(dvo, CH7xxx_TVCO, tvco);  in ch7xxx_mode_set()
307 	ch7xxx_writeb(dvo, CH7xxx_TPCP, tpcp);  in ch7xxx_mode_set()
308 	ch7xxx_writeb(dvo, CH7xxx_TPD, tpd);  in ch7xxx_mode_set()
309 	ch7xxx_writeb(dvo, CH7xxx_TPVT, 0x30);  in ch7xxx_mode_set()
310 	ch7xxx_writeb(dvo, CH7xxx_TLPF, tlpf);  in ch7xxx_mode_set()
311 	ch7xxx_writeb(dvo, CH7xxx_TCT, 0x00);  in ch7xxx_mode_set()
313 	ch7xxx_readb(dvo, CH7xxx_IDF, &idf);  in ch7xxx_mode_set()
324 	ch7xxx_writeb(dvo, CH7xxx_IDF, idf);  in ch7xxx_mode_set()
326 	ch7xxx_writeb(dvo, CH7xxx_DAC_CNTL,  in ch7xxx_mode_set()
328 	ch7xxx_writeb(dvo, CH7xxx_CLOCK_OUTPUT,  in ch7xxx_mode_set()
333 static void ch7xxx_dpms(struct intel_dvo_device *dvo, bool enable)  in ch7xxx_dpms()  argument
336 		ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_DVIL | CH7xxx_PM_DVIP);  in ch7xxx_dpms()
338 		ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_FPD);  in ch7xxx_dpms()
341 static bool ch7xxx_get_hw_state(struct intel_dvo_device *dvo)  in ch7xxx_get_hw_state()  argument
345 	ch7xxx_readb(dvo, CH7xxx_PM, &val);  in ch7xxx_get_hw_state()
353 static void ch7xxx_dump_regs(struct intel_dvo_device *dvo)  in ch7xxx_dump_regs()  argument
361 		ch7xxx_readb(dvo, i, &val);  in ch7xxx_dump_regs()
366 static void ch7xxx_destroy(struct intel_dvo_device *dvo)  in ch7xxx_destroy()  argument
368 	struct ch7xxx_priv *ch7xxx = dvo->dev_priv;  in ch7xxx_destroy()
372 		dvo->dev_priv = NULL;  in ch7xxx_destroy()