Re: [PATCH v8 2/3] drm: bridge: Add support for Cadence MHDP DPI/DP bridge

From: Tomi Valkeinen
Date: Wed Aug 26 2020 - 03:26:46 EST


Hi,

On 11/08/2020 05:36, Laurent Pinchart wrote:
>> +{
>> + u32 max_bw, req_bw, bpp;
>> +
>> + bpp = cdns_mhdp_get_bpp(&mhdp->display_fmt);
>> + req_bw = mode->clock * bpp / 8;
>> + max_bw = lanes * rate;
> mode->clock is in kHz, while rate is expressed in 10kHz unit if I'm not
> mistaken.

Rate is in 10 kbps units. And 10 bits in DP gives you one byte (8b/10b encoding). So max_bw is in
kBps, the same as req_bw.

Tomi

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