From c1b6b4f2342d073698dfc2547240c35045a1d00e Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 14 Jul 2008 22:38:28 +0200 Subject: i2c: Let framebuffer drivers set their I2C bus class to DDC Let framebuffer drivers set their I2C bus class to DDC. Once this is done, we will be able to tell the eeprom driver to only probe for EDID EEPROMs on these buses. Signed-off-by: Jean Delvare --- drivers/video/matrox/i2c-matroxfb.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'drivers/video/matrox') diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c index 4baab7be58d..75ee5a12e54 100644 --- a/drivers/video/matrox/i2c-matroxfb.c +++ b/drivers/video/matrox/i2c-matroxfb.c @@ -104,7 +104,9 @@ static struct i2c_algo_bit_data matrox_i2c_algo_template = }; static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo, - unsigned int data, unsigned int clock, const char* name) { + unsigned int data, unsigned int clock, const char *name, + int class) +{ int err; b->minfo = minfo; @@ -114,6 +116,7 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo, snprintf(b->adapter.name, sizeof(b->adapter.name), name, minfo->fbcon.node); i2c_set_adapdata(&b->adapter, b); + b->adapter.class = class; b->adapter.algo_data = &b->bac; b->adapter.dev.parent = &ACCESS_FBINFO(pcidev)->dev; b->bac = matrox_i2c_algo_template; @@ -159,22 +162,29 @@ static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) { switch (ACCESS_FBINFO(chip)) { case MGA_2064: case MGA_2164: - err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1B_DATA, DDC1B_CLK, "DDC:fb%u #0"); + err = i2c_bus_reg(&m2info->ddc1, minfo, + DDC1B_DATA, DDC1B_CLK, + "DDC:fb%u #0", I2C_CLASS_DDC); break; default: - err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1_DATA, DDC1_CLK, "DDC:fb%u #0"); + err = i2c_bus_reg(&m2info->ddc1, minfo, + DDC1_DATA, DDC1_CLK, + "DDC:fb%u #0", I2C_CLASS_DDC); break; } if (err) goto fail_ddc1; if (ACCESS_FBINFO(devflags.dualhead)) { - err = i2c_bus_reg(&m2info->ddc2, minfo, DDC2_DATA, DDC2_CLK, "DDC:fb%u #1"); + err = i2c_bus_reg(&m2info->ddc2, minfo, + DDC2_DATA, DDC2_CLK, + "DDC:fb%u #1", I2C_CLASS_DDC); if (err == -ENODEV) { printk(KERN_INFO "i2c-matroxfb: VGA->TV plug detected, DDC unavailable.\n"); } else if (err) printk(KERN_INFO "i2c-matroxfb: Could not register secondary output i2c bus. Continuing anyway.\n"); /* Register maven bus even on G450/G550 */ - err = i2c_bus_reg(&m2info->maven, minfo, MAT_DATA, MAT_CLK, "MAVEN:fb%u"); + err = i2c_bus_reg(&m2info->maven, minfo, + MAT_DATA, MAT_CLK, "MAVEN:fb%u", 0); if (err) printk(KERN_INFO "i2c-matroxfb: Could not register Maven i2c bus. Continuing anyway.\n"); } -- cgit v1.2.3