[Intel-gfx] [PATCH i-g-t] tools/intel_vbt_decode: Fix decoding of child device structure

[Clint Taylor]

This patch fixes the alignment. I spotted another issue with teh 
structure and will fix it once this one is merged.

Reviewed-by: Clint Taylor <Clinton.A.Taylor at intel.com>
Tested-by: Clint Taylor <Clinton.A.Taylor at intel.com>


On 08/16/2017 07:20 AM, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Fix decoding of the start of the child device structure. I had
> accidentally duplicated the "device class/type" member and forgot to
> include the add-in offset later. Fortunately both were two byte fields
> so they effectively cancelled each other out and thus the remainder of
> the child device structure was being decoded correctly. But of course
> anything sitting between these two fieds was being decoded incorrectly.
>
> Fixes: 86a546f6f798 ("tools/intel_bios_reader: Dump out more information from the child device structure")
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>   tools/intel_bios.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/intel_bios.h b/tools/intel_bios.h
> index ca0d2c587120..f2ccb55ab6c3 100644
> --- a/tools/intel_bios.h
> +++ b/tools/intel_bios.h
> @@ -273,7 +273,6 @@ struct child_device_config {
>   struct efp_child_device_config {
>   	uint16_t handle;
>   	uint16_t device_type;
> -	uint16_t device_class;
>   	uint8_t i2c_speed;
>   	uint8_t dp_onboard_redriver; /* 158 */
>   	uint8_t dp_ondock_redriver; /* 158 */
> @@ -289,6 +288,7 @@ struct efp_child_device_config {
>   	uint8_t skip1:4;
>   	uint8_t slave_port; /*  202 */
>   	uint8_t skip2;
> +	uint16_t addin_offset;
>   	uint8_t port;
>   	uint8_t i2c_pin; /* for add-in card */
>   	uint8_t slave_addr; /* for add-in card */