From: Jisheng Zhang <jszhang@kernel.org>
To: "Thierry Reding" <thierry.reding@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Conor Dooley" <conor+dt@kernel.org>
Cc: linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: [PATCH v2 0/2] pwm: add driver for T-THEAD TH1520 SoC
Date: Wed, 4 Oct 2023 17:27:29 +0800 [thread overview]
Message-ID: <20231004092731.1362-1-jszhang@kernel.org> (raw)
T-HEAD SoCs such as the TH1520 contain a PWM controller used to
control the LCD backlight, fan and so on. Add the PWM driver support
for it.
Since the clk part isn't mainlined, so SoC dts(i) changes are not
included in this series. However, it can be tested by using fixed-clock.
since v1:
- update commit msg and yaml filename to address Conor's comment
- use devm_clk_get_enabled() and devm_pwmchip_add()
- implement .get_state()
- properly handle overflow
- introduce thead_pwm_from_chip() inline function
- document Limitations
- address pm_runtime_get/put pingpong comment
Jisheng Zhang (2):
dt-bindings: pwm: Add T-HEAD PWM controller
pwm: add T-HEAD PWM driver
.../bindings/pwm/thead,th1520-pwm.yaml | 44 +++
MAINTAINERS | 1 +
drivers/pwm/Kconfig | 11 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-thead.c | 274 ++++++++++++++++++
5 files changed, 331 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml
create mode 100644 drivers/pwm/pwm-thead.c
--
2.40.1
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next reply other threads:[~2023-10-04 9:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-04 9:27 Jisheng Zhang [this message]
2023-10-04 9:27 ` [PATCH v2 1/2] dt-bindings: pwm: Add T-HEAD PWM controller Jisheng Zhang
2023-10-04 14:02 ` Uwe Kleine-König
2023-10-04 15:07 ` Rob Herring
2023-10-04 9:27 ` [PATCH v2 2/2] pwm: add T-HEAD PWM driver Jisheng Zhang
2023-10-04 14:01 ` Uwe Kleine-König
2023-10-05 14:06 ` Jisheng Zhang
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