X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fvideo%2Ffb_ddc.c;h=0cf96eb8a60f610b3fc26f0bc827453eb1c201fc;hb=57a20d8fb0d2a05abe40abd6bb29e3f923721f1b;hp=3aa6ebf68f178d5bea7b8f3fa34a38f3fd6a5d11;hpb=97d41e90fe61399b99d74820cb7f2d6e0fbac91d;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/video/fb_ddc.c b/drivers/video/fb_ddc.c
index 3aa6ebf68f1..0cf96eb8a60 100644
--- a/drivers/video/fb_ddc.c
+++ b/drivers/video/fb_ddc.c
@@ -20,26 +20,26 @@
 static unsigned char *fb_do_probe_ddc_edid(struct i2c_adapter *adapter)
 {
 	unsigned char start = 0x0;
+	unsigned char *buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
 	struct i2c_msg msgs[] = {
 		{
 			.addr	= DDC_ADDR,
+			.flags	= 0,
 			.len	= 1,
 			.buf	= &start,
 		}, {
 			.addr	= DDC_ADDR,
 			.flags	= I2C_M_RD,
 			.len	= EDID_LENGTH,
+			.buf	= buf,
 		}
 	};
-	unsigned char *buf;
 
-	buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
 	if (!buf) {
 		dev_warn(&adapter->dev, "unable to allocate memory for EDID "
 			 "block.\n");
 		return NULL;
 	}
-	msgs[1].buf = buf;
 
 	if (i2c_transfer(adapter, msgs, 2) == 2)
 		return buf;
@@ -56,13 +56,12 @@ unsigned char *fb_ddc_read(struct i2c_adapter *adapter)
 	int i, j;
 
 	algo_data->setscl(algo_data->data, 1);
-	algo_data->setscl(algo_data->data, 0);
 
 	for (i = 0; i < 3; i++) {
 		/* For some old monitors we need the
 		 * following process to initialize/stop DDC
 		 */
-		algo_data->setsda(algo_data->data, 0);
+		algo_data->setsda(algo_data->data, 1);
 		msleep(13);
 
 		algo_data->setscl(algo_data->data, 1);
@@ -97,15 +96,17 @@ unsigned char *fb_ddc_read(struct i2c_adapter *adapter)
 		algo_data->setsda(algo_data->data, 1);
 		msleep(15);
 		algo_data->setscl(algo_data->data, 0);
+		algo_data->setsda(algo_data->data, 0);
 		if (edid)
 			break;
 	}
 	/* Release the DDC lines when done or the Apple Cinema HD display
 	 * will switch off
 	 */
-	algo_data->setsda(algo_data->data, 0);
-	algo_data->setscl(algo_data->data, 0);
+	algo_data->setsda(algo_data->data, 1);
+	algo_data->setscl(algo_data->data, 1);
 
+	adapter->class |= I2C_CLASS_DDC;
 	return edid;
 }