From: Peter Griffin <peter.griffin@linaro.org>
To: arnd@arndb.de, krzysztof.kozlowski@linaro.org,
linux@roeck-us.net, wim@linux-watchdog.org,
alim.akhtar@samsung.com, jaewon02.kim@samsung.com,
semen.protsenko@linaro.org
Cc: kernel-team@android.com, peter.griffin@linaro.org,
tudor.ambarus@linaro.org, andre.draszik@linaro.org,
saravanak@google.com, willmcvicker@google.com,
linux-fsd@tesla.com, linux-watchdog@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org
Subject: [PATCH v2 0/2] Add regmap support to exynos-pmu for protected PMU regs
Date: Mon, 29 Jan 2024 21:19:10 +0000 [thread overview]
Message-ID: <20240129211912.3068411-1-peter.griffin@linaro.org> (raw)
Hi folks,
This is a v2 of the series to add support for protected PMU registers found
on gs101 and derivative SoCs. In v2 it has been re-worked to be based on a
regmap abstraction that I think leads to a much neater overall solution.
The advantage of the regmap abstraction is that most leaf drivers that
read/write PMU registers need minimal changes.
Example of Exynos drivers that require PMU register access are:
* watchdog
* usb phy
* mipi phy
* ufs phy
This series has been tested on Pixel 6 / gs101. If the various maintainers/
contributors of other Exynos SoCs like exynos850, exynosautov9 etc can test
these patches on your respective systems that would be most appreciated!
The expectation is this series would be merged via Krzysztofs Samsung Exynos
tree.
regards,
Peter
Changes since v1:
- Refactor to use custom regmap to abstract SMC register access (Sam / Guenter)
- Add deferred probing support (Saravana / Krzysztof)
v1 lore: https://lore.kernel.org/all/20240122225710.1952066-1-peter.griffin@linaro.org/
Peter Griffin (2):
soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU
regs
watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU
regs
drivers/soc/samsung/exynos-pmu.c | 227 ++++++++++++++++++++++++-
drivers/watchdog/Kconfig | 1 -
drivers/watchdog/s3c2410_wdt.c | 9 +-
include/linux/soc/samsung/exynos-pmu.h | 10 ++
4 files changed, 241 insertions(+), 6 deletions(-)
--
2.43.0.429.g432eaa2c6b-goog
next reply other threads:[~2024-01-29 21:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-29 21:19 Peter Griffin [this message]
2024-01-29 21:19 ` [PATCH v2 1/2] soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU regs Peter Griffin
2024-01-29 23:01 ` Sam Protsenko
2024-01-30 14:51 ` Peter Griffin
2024-01-30 6:26 ` Guenter Roeck
2024-01-30 15:01 ` Peter Griffin
2024-01-30 16:01 ` Krzysztof Kozlowski
2024-02-01 11:29 ` Peter Griffin
2024-02-05 11:03 ` Krzysztof Kozlowski
2024-02-01 12:51 ` Peter Griffin
2024-02-05 13:13 ` Krzysztof Kozlowski
2024-02-07 11:42 ` Peter Griffin
2024-02-07 14:48 ` Krzysztof Kozlowski
2024-01-29 21:19 ` [PATCH v2 2/2] watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for " Peter Griffin
2024-01-29 22:25 ` Saravana Kannan
2024-01-30 3:38 ` Sam Protsenko
2024-01-30 15:31 ` Peter Griffin
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