Re: [PATCH v5 08/12] phy: rockchip: samsung-hdptx: Setup TMDS char rate via phy_configure_opts_hdmi

[Cristian Ciocaltea]

On 3/9/25 11:26 AM, Dmitry Baryshkov wrote:
> On Sat, 8 Mar 2025 at 14:21, Cristian Ciocaltea
> <cristian.ciocaltea@xxxxxxxxxxxxx> wrote:
>>
>> The current workaround to setup the TMDS character rate relies on the
>> unconventional usage of phy_set_bus_width().
>>
>> Make use of the recently introduced HDMI PHY configuration API to
>> properly handle the setup.  The workaround will be dropped as soon as
>> the switch has been completed on both ends.
>>
>> Rename rk_hdptx_phy_verify_config() to rk_hdptx_phy_verify_dp_config()
>> and introduce the rk_hdptx_phy_verify_hdmi_config() helper to check the
>> HDMI parameters during phy_configure().
>>
>> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
>> ---
>>  drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 64 +++++++++++++++++------
>>  1 file changed, 47 insertions(+), 17 deletions(-)
>>
> 
>> @@ -1469,8 +1474,27 @@ static int rk_hdptx_phy_power_off(struct phy *phy)
>>         return rk_hdptx_phy_consumer_put(hdptx, false);
>>  }
>>
>> -static int rk_hdptx_phy_verify_config(struct rk_hdptx_phy *hdptx,
>> -                                     struct phy_configure_opts_dp *dp)
>> +static int rk_hdptx_phy_verify_hdmi_config(struct rk_hdptx_phy *hdptx,
>> +                                          struct phy_configure_opts_hdmi *hdmi)
>> +{
>> +       int i;
>> +
>> +       if (!hdmi->tmds_char_rate || hdmi->tmds_char_rate > HDMI20_MAX_RATE)
>> +               return -EINVAL;
>> +
>> +       for (i = 0; i < ARRAY_SIZE(ropll_tmds_cfg); i++)
>> +               if (hdmi->tmds_char_rate == ropll_tmds_cfg[i].rate)
>> +                       break;
> 
> return 0;
> 
>> +
>> +       if (i == ARRAY_SIZE(ropll_tmds_cfg) &&
> 
> Then you can drop the first clause in the if

Sure, will do!

Thanks,
Cristian