Re: [PATCH v8 05/26] clocksource: Add driver for the Ingenic JZ47xx OST

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On 1/23/19 4:58 AM, Mathieu Malaterre wrote:
On Wed, Dec 12, 2018 at 11:09 PM Paul Cercueil <paul@xxxxxxxxxxxxxxx> wrote:

From: Maarten ter Huurne <maarten@xxxxxxxxxxxxxx>

OST is the OS Timer, a 64-bit timer/counter with buffered reading.

SoCs before the JZ4770 had (if any) a 32-bit OST; the JZ4770 and
JZ4780 have a 64-bit OST.

This driver will register both a clocksource and a sched_clock to the
system.

Signed-off-by: Maarten ter Huurne <maarten@xxxxxxxxxxxxxx>
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---

Notes:
      v5: New patch

      v6: - Get rid of SoC IDs; pass pointer to ingenic_ost_soc_info as
            devicetree match data instead.
          - Use device_get_match_data() instead of the of_* variant
          - Handle error of dev_get_regmap() properly

      v7: Fix section mismatch by using builtin_platform_driver_probe()

      v8: builtin_platform_driver_probe() does not work anymore in
          4.20-rc6? The probe function won't be called. Work around this
          for now by using late_initcall.


Did anyone notice this ? Either something is wrong with the driver, or
with the kernel core. Hacking around it seems like the worst possible
"solution".

Guenter



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