1 /* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 #include <linux/i2c.h>
19 #include <linux/delay.h>
22 #define DEVICE_NAME "sii9022"
23 #define SII9022_DEVICE_ID 0xB0
25 struct sii9022_i2c_addr_data{
31 static u8 video_mode_data[] = {
33 0xF9, 0x1C, 0x70, 0x17, 0x72, 0x06, 0xEE, 0x02,
36 static u8 avi_io_format[] = {
42 static struct sii9022_i2c_addr_data regset0[] = {
48 static u8 video_infoframe[] = {
50 0xF0, 0x00, 0x68, 0x00, 0x04, 0x00, 0x19, 0x00,
51 0xE9, 0x02, 0x04, 0x01, 0x04, 0x06,
55 static struct sii9022_i2c_addr_data regset1[] = {
68 static u8 misc_infoframe[] = {
70 0xC2, 0x84, 0x01, 0x0A, 0x6F, 0x02, 0x00, 0x00,
71 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
74 /* set HDMI, active */
75 static struct sii9022_i2c_addr_data regset2[] = {
80 static int send_i2c_data(struct i2c_client *client,
81 struct sii9022_i2c_addr_data *regset,
87 for (i = 0; i < size; i++) {
88 rc = i2c_smbus_write_byte_data(
90 regset[i].addr, regset[i].data);
97 static int hdmi_sii_enable(struct i2c_client *client)
103 rc = i2c_smbus_write_byte_data(client, 0xC7, 0x00);
109 rc = i2c_smbus_read_byte_data(client, 0x1B);
110 } while ((rc != SII9022_DEVICE_ID) && retries--);
112 if (rc != SII9022_DEVICE_ID)
115 rc = i2c_smbus_write_byte_data(client, 0x1A, 0x11);
119 count = ARRAY_SIZE(video_mode_data);
120 rc = i2c_master_send(client, video_mode_data, count);
126 rc = i2c_smbus_write_byte_data(client, 0x08, 0x20);
129 count = ARRAY_SIZE(avi_io_format);
130 rc = i2c_master_send(client, avi_io_format, count);
136 rc = send_i2c_data(client, regset0, ARRAY_SIZE(regset0));
140 count = ARRAY_SIZE(video_infoframe);
141 rc = i2c_master_send(client, video_infoframe, count);
147 rc = send_i2c_data(client, regset1, ARRAY_SIZE(regset1));
151 count = ARRAY_SIZE(misc_infoframe);
152 rc = i2c_master_send(client, misc_infoframe, count);
158 rc = send_i2c_data(client, regset2, ARRAY_SIZE(regset2));
164 printk(KERN_ERR "%s: exited rc=%d\n", __func__, rc);
168 static const struct i2c_device_id hmdi_sii_id[] = {
173 static int hdmi_sii_probe(struct i2c_client *client,
174 const struct i2c_device_id *id)
178 if (!i2c_check_functionality(client->adapter,
179 I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C))
181 rc = hdmi_sii_enable(client);
186 static struct i2c_driver hdmi_sii_i2c_driver = {
189 .owner = THIS_MODULE,
191 .probe = hdmi_sii_probe,
192 .remove = __exit_p(hdmi_sii_remove),
193 .id_table = hmdi_sii_id,
196 static int __init hdmi_sii_init(void)
199 struct msm_panel_info pinfo;
201 if (msm_fb_detect_client("hdmi_sii9022"))
206 pinfo.type = HDMI_PANEL;
207 pinfo.pdest = DISPLAY_1;
208 pinfo.wait_cycle = 0;
211 pinfo.clk_rate = 74250000;
213 pinfo.lcdc.h_back_porch = 124;
214 pinfo.lcdc.h_front_porch = 110;
215 pinfo.lcdc.h_pulse_width = 136;
216 pinfo.lcdc.v_back_porch = 19;
217 pinfo.lcdc.v_front_porch = 5;
218 pinfo.lcdc.v_pulse_width = 6;
219 pinfo.lcdc.border_clr = 0;
220 pinfo.lcdc.underflow_clr = 0xff;
221 pinfo.lcdc.hsync_skew = 0;
223 ret = lcdc_device_register(&pinfo);
225 printk(KERN_ERR "%s: failed to register device\n", __func__);
229 ret = i2c_add_driver(&hdmi_sii_i2c_driver);
231 printk(KERN_ERR "%s: failed to add i2c driver\n", __func__);
237 static void __exit hdmi_sii_exit(void)
239 i2c_del_driver(&hdmi_sii_i2c_driver);
242 module_init(hdmi_sii_init);
243 module_exit(hdmi_sii_exit);
244 MODULE_LICENSE("GPL v2");
245 MODULE_VERSION("0.1");
246 MODULE_AUTHOR("Qualcomm Innovation Center, Inc.");
247 MODULE_DESCRIPTION("SiI9022 HDMI driver");
248 MODULE_ALIAS("platform:hdmi-sii9022");