linux-kernel - Re: [PATCH v2 34/34] media: iris: add power management for encoder

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Date: Tue, 19 Dec 2023 13:26:30 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Dikshita Agarwal <quic_dikshita@...cinc.com>,
 linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
 stanimir.k.varbanov@...il.com, quic_vgarodia@...cinc.com, agross@...nel.org,
 andersson@...nel.org, mchehab@...nel.org, bryan.odonoghue@...aro.org
Cc: linux-arm-msm@...r.kernel.org, quic_abhinavk@...cinc.com
Subject: Re: [PATCH v2 34/34] media: iris: add power management for encoder

On 18.12.2023 12:32, Dikshita Agarwal wrote:
> Hardware specific power sequence include programming specific
> sequence of registers. Implements this sequence for iris3.
> 
> Also, implement iris3 Encoder specific calculation for clock
> and bus bandwidth which depends on hardware configuration,
> codec format, resolution and frame rate.
> 
> Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
> ---
[...]

> +static const struct bw_info sm8550_bw_table_enc[] = {
> +	{ 1944000, 1491000, 2693000 },	/* 3840x2160@60 */
> +	{  972000,  765000, 1366000 },	/* 3840x2160@30 */
> +	{  489600,  557000, 780000 },	/* 1920x1080@60 */
> +	{  244800,  288000, 399000 },	/* 1920x1080@30 */
> +};
can this be calculated at runtime by chance?

Konrad