diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 093141ad6ed0..e476e45b996a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -36,13 +36,6 @@ #include "atombios_encoders.h" #include "bif/bif_4_1_d.h" -static void amdgpu_atombios_lookup_i2c_gpio_quirks(struct amdgpu_device *adev, - ATOM_GPIO_I2C_ASSIGMENT *gpio, - u8 index) -{ - -} - static struct amdgpu_i2c_bus_rec amdgpu_atombios_get_bus_rec_for_i2c_gpio(ATOM_GPIO_I2C_ASSIGMENT *gpio) { struct amdgpu_i2c_bus_rec i2c; @@ -108,9 +101,6 @@ struct amdgpu_i2c_bus_rec amdgpu_atombios_lookup_i2c_gpio(struct amdgpu_device * gpio = &i2c_info->asGPIO_Info[0]; for (i = 0; i < num_indices; i++) { - - amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i); - if (gpio->sucI2cId.ucAccess == id) { i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio); break; @@ -142,8 +132,6 @@ void amdgpu_atombios_i2c_init(struct amdgpu_device *adev) gpio = &i2c_info->asGPIO_Info[0]; for (i = 0; i < num_indices; i++) { - amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i); - i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio); if (i2c.valid) { @@ -156,6 +144,38 @@ void amdgpu_atombios_i2c_init(struct amdgpu_device *adev) } } +void amdgpu_atombios_oem_i2c_init(struct amdgpu_device *adev, u8 i2c_id) +{ + struct atom_context *ctx = adev->mode_info.atom_context; + ATOM_GPIO_I2C_ASSIGMENT *gpio; + struct amdgpu_i2c_bus_rec i2c; + int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info); + struct _ATOM_GPIO_I2C_INFO *i2c_info; + uint16_t data_offset, size; + int i, num_indices; + char stmp[32]; + + if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) { + i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset); + + num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) / + sizeof(ATOM_GPIO_I2C_ASSIGMENT); + + gpio = &i2c_info->asGPIO_Info[0]; + for (i = 0; i < num_indices; i++) { + i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio); + + if (i2c.valid && i2c.i2c_id == i2c_id) { + sprintf(stmp, "OEM 0x%x", i2c.i2c_id); + adev->i2c_bus[i] = amdgpu_i2c_create(adev_to_drm(adev), &i2c, stmp); + break; + } + gpio = (ATOM_GPIO_I2C_ASSIGMENT *) + ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT)); + } + } +} + struct amdgpu_gpio_rec amdgpu_atombios_lookup_gpio(struct amdgpu_device *adev, u8 id) |