[PATCH 1/9] drm/exynos: use SoC name to identify hdmi version

[Rahul Sharma]

Thanks Seung-Woo,

On Fri, Jun 14, 2013 at 12:23 PM, 김승우 <sw0312.kim at samsung.com> wrote:
> Hello Rahul,
>
> On 2013년 06월 11일 23:11, Rahul Sharma wrote:
>> Exynos hdmi IP version is named after hdmi specification version i.e.
>> 1.3 and 1.4. This versioning mechanism is not sufficient to handle
>> the diversity in the hdmi/phy IPs which are present across the exynos
>> SoC family.
>>
>> This patch changes the hdmi version to the name of the SoC in which
>> the IP was introduced for the first time. Same version is applicable
>> to all subsequent SoCs having the same IP version.
>>
>> Exynos4210 has 1.3 HDMI, i2c mapped phy with configuration set.
>> Exynos5250 has 1.4 HDMI, i2c mapped phy with configuration set.
>> Exynos5420 has 1.4 HDMI, Platform Bus mapped phy with configuration set.
>>
>> Based on the HDMI IP version we cannot decide to pick Exynos5250 phy conf
>> and use i2c for data transfer or Exynos5420 phy confs and platform bus
>> calls for communication.
>
> Considering your other patch to divide hdmi and hdmiphy, how do you
> think using hdmiphy version parsed from hdmiphy dt binding from phy code
> instead of using hdmi version for both hdmi and hdmiphy? If that, this
> SoC identifying hdmi version is not necessary because there is no change
> at least in hdmi side.
>
> And IMO, it seems easy to merge hdmiphy related patch first before
> merging patch for exynos5420.
>

You are right. If we isolate hdmiphy first from hdmi IP driver, we
dont need this
patch. I will revive the hdmiphy separation patch and get that merge first.

regards,
Rahul Sharma.

>>
>> Signed-off-by: Rahul Sharma <rahul.sharma at samsung.com>
>> ---
>>  drivers/gpu/drm/exynos/exynos_hdmi.c |  249 +++++++++++++++++-----------------
>>  drivers/gpu/drm/exynos/regs-hdmi.h   |   78 +++++------
>>  2 files changed, 164 insertions(+), 163 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
>> index 75a6bf3..9384ffc 100644
>> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
>> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
>> @@ -73,9 +73,9 @@ enum HDMI_PACKET_TYPE {
>>       HDMI_PACKET_TYPE_AUI = HDMI_PACKET_TYPE_INFOFRAME + 4
>>  };
>>
>> -enum hdmi_type {
>> -     HDMI_TYPE13,
>> -     HDMI_TYPE14,
>> +enum hdmi_version {
>> +     HDMI_VER_EXYNOS4210,
>> +     HDMI_VER_EXYNOS4212,
>>  };
>
> <snip>
>
> --
> Seung-Woo Kim
> Samsung Software R&D Center
> --
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html