Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait

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Subject: Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
From: Dmitry Osipenko <digetx@xxxxxxxxx>
Date: Fri, 17 Jul 2020 23:14:52 +0300
Cc: sboyd@xxxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx, linux-media@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-i2c@xxxxxxxxxxxxxxx
In-reply-to: <b125deab-7900-6266-d405-4d7f029089b4@nvidia.com>
References: <1594786855-26506-1-git-send-email-skomatineni@nvidia.com> <1594786855-26506-17-git-send-email-skomatineni@nvidia.com> <a06dec8f-7042-767b-545b-048685a7683d@gmail.com> <20d63eca-4b2b-584e-a391-a4fb64a16b40@nvidia.com> <c4945c77-5de1-e9b1-9f4f-cdd78bca18c7@gmail.com> <ce0c5ffb-f859-0eab-1ea5-044623dff221@nvidia.com> <a2b8169c-c4a3-4862-cd27-8c1a51ddc558@gmail.com> <4690e682-8495-2327-87c7-c2f06a7a479d@nvidia.com> <66812127-38cf-2af3-51c0-50edbe446e73@nvidia.com> <9b4fbf9d-d651-aa35-c0a6-b8f16aeb0900@gmail.com> <550f1796-67ca-5856-223d-c68360243954@nvidia.com> <ca8f2184-de30-03ec-9caf-e20a22d96a77@nvidia.com> <080b30c7-1dce-dd2f-dd96-40f6e25da4d6@gmail.com> <b125deab-7900-6266-d405-4d7f029089b4@nvidia.com>
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17.07.2020 18:41, Sowjanya Komatineni пишет:
...
>> Also, what about the auto-calibration? Isn't it needed to be enabled for
>> CSI?
> STARTCAL does one time calibration and with AUTOCAL calibration will be
> triggered periodically.
> 
> For pads PULLUP/PULLDN/TERM impedance calibration, we only need one-time
> calibration on pads power up.
> 
> We always use one time pads calibration for CSI.

Alright, thank you for the clarification!

References:
- [RFC PATCH v3 00/18] Support for Tegra video capture from external sensor
  - From: Sowjanya Komatineni
- [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Dmitry Osipenko
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Dmitry Osipenko
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Dmitry Osipenko
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Dmitry Osipenko
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Dmitry Osipenko
- Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
  - From: Sowjanya Komatineni

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