diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_combios.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_combios.c | 71 |
1 files changed, 67 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 318afe8..e208d73 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -486,9 +486,65 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde i2c.y_data_reg = ddc_line; } - if (rdev->family < CHIP_R200) - i2c.hw_capable = false; - else { + switch (rdev->family) { + case CHIP_R100: + case CHIP_RV100: + case CHIP_RS100: + case CHIP_RV200: + case CHIP_RS200: + case CHIP_RS300: + switch (ddc_line) { + case RADEON_GPIO_DVI_DDC: + /* in theory this should be hw capable, + * but it doesn't seem to work + */ + i2c.hw_capable = false; + break; + default: + i2c.hw_capable = false; + break; + } + break; + case CHIP_R200: + switch (ddc_line) { + case RADEON_GPIO_DVI_DDC: + case RADEON_GPIO_MONID: + i2c.hw_capable = true; + break; + default: + i2c.hw_capable = false; + break; + } + break; + case CHIP_RV250: + case CHIP_RV280: + switch (ddc_line) { + case RADEON_GPIO_VGA_DDC: + case RADEON_GPIO_DVI_DDC: + case RADEON_GPIO_CRT2_DDC: + i2c.hw_capable = true; + break; + default: + i2c.hw_capable = false; + break; + } + break; + case CHIP_R300: + case CHIP_R350: + switch (ddc_line) { + case RADEON_GPIO_VGA_DDC: + case RADEON_GPIO_DVI_DDC: + i2c.hw_capable = true; + break; + default: + i2c.hw_capable = false; + break; + } + break; + case CHIP_RV350: + case CHIP_RV380: + case CHIP_RS400: + case CHIP_RS480: switch (ddc_line) { case RADEON_GPIO_VGA_DDC: case RADEON_GPIO_DVI_DDC: @@ -504,6 +560,10 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde i2c.hw_capable = false; break; } + break; + default: + i2c.hw_capable = false; + break; } i2c.mm_i2c = false; i2c.i2c_id = 0; @@ -1253,7 +1313,10 @@ bool radeon_legacy_get_ext_tmds_info_from_combios(struct radeon_encoder *encoder tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO"); break; case DDC_LCD: /* MM i2c */ - DRM_ERROR("MM i2c requires hw i2c engine\n"); + i2c_bus.valid = true; + i2c_bus.hw_capable = true; + i2c_bus.mm_i2c = true; + tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO"); break; default: DRM_ERROR("Unsupported gpio %d\n", gpio); |
