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From: Bjorn Helgaas <helgaas@kernel.org>
To: Christian Bruel <christian.bruel@foss.st.com>
Cc: lpieralisi@kernel.org, kw@linux.com,
	manivannan.sadhasivam@linaro.org, robh@kernel.org,
	bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org,
	mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com,
	p.zabel@pengutronix.de, thippeswamy.havalige@amd.com,
	shradha.t@samsung.com, quic_schintav@quicinc.com,
	cassel@kernel.org, johan+linaro@kernel.org,
	linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 2/9] PCI: stm32: Add PCIe host support for STM32MP25
Date: Thu, 17 Apr 2025 14:31:07 -0500	[thread overview]
Message-ID: <20250417193107.GA123243@bhelgaas> (raw)
In-Reply-To: <20250417131833.3427126-3-christian.bruel@foss.st.com>

On Thu, Apr 17, 2025 at 03:18:26PM +0200, Christian Bruel wrote:
> Add driver for the STM32MP25 SoC PCIe Gen1 2.5 GT/s and Gen2 5GT/s
> controller based on the DesignWare PCIe core.

> +static void stm32_pcie_deassert_perst(struct stm32_pcie *stm32_pcie)
> +{
> +	/* Delay PERST# de-assertion t least 100ms he power to become stable */

s/ t / at /
s/ he / for / ?

Could also remove "100ms".

> +	msleep(PCIE_T_PVPERL_MS);
> +
> +	gpiod_set_value(stm32_pcie->perst_gpio, 0);
> +
> +	/* Wait 100ms for the REFCLK to becode stable  */

s/becode/become/

Could drop "100ms" here, too.

> +	if (stm32_pcie->perst_gpio)
> +		msleep(PCIE_T_RRS_READY_MS);
> +}

> +	if (stm32_pcie->wake_gpio) {
> +		wake_irq = gpiod_to_irq(stm32_pcie->wake_gpio);
> +		ret = dev_pm_set_dedicated_wake_irq(dev, wake_irq);
> +		if (ret) {
> +			dev_info(dev, "Failed to enable wake# %d\n", ret);

I guess this refers to the "WAKE#" signal in the spec?  Could
capitalize to remove the question.


  reply	other threads:[~2025-04-17 19:33 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-17 13:18 [PATCH v6 0/9] Add STM32MP25 PCIe drivers Christian Bruel
2025-04-17 13:18 ` [PATCH v6 1/9] dt-bindings: PCI: Add STM32MP25 PCIe Root Complex bindings Christian Bruel
2025-04-17 13:18 ` [PATCH v6 2/9] PCI: stm32: Add PCIe host support for STM32MP25 Christian Bruel
2025-04-17 19:31   ` Bjorn Helgaas [this message]
2025-04-17 13:18 ` [PATCH v6 3/9] dt-bindings: PCI: Add STM32MP25 PCIe Endpoint bindings Christian Bruel
2025-04-17 13:18 ` [PATCH v6 4/9] PCI: stm32: Add PCIe Endpoint support for STM32MP25 Christian Bruel
2025-04-17 13:18 ` [PATCH v6 5/9] MAINTAINERS: add entry for ST STM32MP25 PCIe drivers Christian Bruel
2025-04-17 13:18 ` [PATCH v6 6/9] arm64: dts: st: add PCIe pinctrl entries in stm32mp25-pinctrl.dtsi Christian Bruel
2025-04-17 13:18 ` [PATCH v6 7/9] arm64: dts: st: Add PCIe Root Complex mode on stm32mp251 Christian Bruel
2025-04-17 13:18 ` [PATCH v6 8/9] arm64: dts: st: Add PCIe Endpoint " Christian Bruel
2025-04-17 13:18 ` [PATCH v6 9/9] arm64: dts: st: Enable PCIe on the stm32mp257f-ev1 board Christian Bruel

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