Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / drivers / video / nvidia / nv_i2c.c

diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c
index 3757c14..1edb1c4 100644 (file)
--- a/drivers/video/nvidia/nv_i2c.c
+++ b/drivers/video/nvidia/nv_i2c.c
@@ -46,7 +46,7 @@ static void nvidia_gpio_setscl(void *data, int state)
 
 static void nvidia_gpio_setsda(void *data, int state)
 {
-       struct nvidia_i2c_chan *chan = (struct nvidia_i2c_chan *)data;
+       struct nvidia_i2c_chan *chan = data;
        struct nvidia_par *par = chan->par;
        u32 val;
 
@@ -64,7 +64,7 @@ static void nvidia_gpio_setsda(void *data, int state)
 
 static int nvidia_gpio_getscl(void *data)
 {
-       struct nvidia_i2c_chan *chan = (struct nvidia_i2c_chan *)data;
+       struct nvidia_i2c_chan *chan = data;
        struct nvidia_par *par = chan->par;
        u32 val = 0;
 
@@ -79,7 +79,7 @@ static int nvidia_gpio_getscl(void *data)
 
 static int nvidia_gpio_getsda(void *data)
 {
-       struct nvidia_i2c_chan *chan = (struct nvidia_i2c_chan *)data;
+       struct nvidia_i2c_chan *chan = data;
        struct nvidia_par *par = chan->par;
        u32 val = 0;
 
@@ -90,14 +90,13 @@ static int nvidia_gpio_getsda(void *data)
        return val;
 }
 
-#define I2C_ALGO_NVIDIA   0x0e0000
 static int nvidia_setup_i2c_bus(struct nvidia_i2c_chan *chan, const char *name)
 {
        int rc;
 
        strcpy(chan->adapter.name, name);
        chan->adapter.owner = THIS_MODULE;
-       chan->adapter.id = I2C_ALGO_NVIDIA;
+       chan->adapter.id = I2C_HW_B_NVIDIA;
        chan->adapter.algo_data = &chan->algo;
        chan->adapter.dev.parent = &chan->par->pci_dev->dev;
        chan->algo.setsda = nvidia_gpio_setsda;
@@ -137,13 +136,13 @@ void nvidia_create_i2c_busses(struct nvidia_par *par)
        par->chan[2].par = par;
 
        par->chan[0].ddc_base = 0x3e;
-       nvidia_setup_i2c_bus(&par->chan[0], "BUS1");
+       nvidia_setup_i2c_bus(&par->chan[0], "nvidia #0");
 
        par->chan[1].ddc_base = 0x36;
-       nvidia_setup_i2c_bus(&par->chan[1], "BUS2");
+       nvidia_setup_i2c_bus(&par->chan[1], "nvidia #1");
 
        par->chan[2].ddc_base = 0x50;
-       nvidia_setup_i2c_bus(&par->chan[2], "BUS3");
+       nvidia_setup_i2c_bus(&par->chan[2], "nvidia #2");
 }
 
 void nvidia_delete_i2c_busses(struct nvidia_par *par)
@@ -195,8 +194,9 @@ static u8 *nvidia_do_probe_i2c_edid(struct nvidia_i2c_chan *chan)
        return NULL;
 }
 
-int nvidia_probe_i2c_connector(struct nvidia_par *par, int conn, u8 **out_edid)
+int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
 {
+       struct nvidia_par *par = info->par;
        u8 *edid = NULL;
        int i;
 
@@ -206,10 +206,19 @@ int nvidia_probe_i2c_connector(struct nvidia_par *par, int conn, u8 **out_edid)
                if (edid)
                        break;
        }
-       if (out_edid)
-               *out_edid = edid;
-       if (!edid)
-               return 1;
 
-       return 0;
+       if (!edid && conn == 1) {
+               /* try to get from firmware */
+               const u8 *e = fb_firmware_edid(info->device);
+
+               if (e != NULL) {
+                       edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
+                       if (edid)
+                               memcpy(edid, e, EDID_LENGTH);
+               }
+       }
+
+       *out_edid = edid;
+
+       return (edid) ? 0 : 1;
 }