linux-kernel - Re: [PATCH net-next v12 09/14] dpll: zl3073x: Register DPLL devices and pins

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Message-ID: <ne36b7ky5cg2g3juejcah7bnvsajihncmpzag3vpjnb3gabz2m@xtxhpfhvfmwl>
Date: Wed, 2 Jul 2025 12:57:22 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: Ivan Vecera <ivecera@...hat.com>
Cc: netdev@...r.kernel.org, 
	Prathosh Satish <Prathosh.Satish@...rochip.com>, Vadim Fedorenko <vadim.fedorenko@...ux.dev>, 
	Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, 
	Jonathan Corbet <corbet@....net>, Jason Gunthorpe <jgg@...pe.ca>, 
	Shannon Nelson <shannon.nelson@....com>, Dave Jiang <dave.jiang@...el.com>, 
	Jonathan Cameron <Jonathan.Cameron@...wei.com>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-doc@...r.kernel.org, Michal Schmidt <mschmidt@...hat.com>, 
	Petr Oros <poros@...hat.com>
Subject: Re: [PATCH net-next v12 09/14] dpll: zl3073x: Register DPLL devices
 and pins

Sun, Jun 29, 2025 at 09:10:44PM +0200, ivecera@...hat.com wrote:

[...]

>+/**
>+ * zl3073x_dpll_device_register - register DPLL device
>+ * @zldpll: pointer to zl3073x_dpll structure
>+ *
>+ * Registers given DPLL device into DPLL sub-system.
>+ *
>+ * Return: 0 on success, <0 on error
>+ */
>+static int
>+zl3073x_dpll_device_register(struct zl3073x_dpll *zldpll)
>+{
>+	struct zl3073x_dev *zldev = zldpll->dev;
>+	u8 dpll_mode_refsel;
>+	int rc;
>+
>+	/* Read DPLL mode and forcibly selected reference */
>+	rc = zl3073x_read_u8(zldev, ZL_REG_DPLL_MODE_REFSEL(zldpll->id),
>+			     &dpll_mode_refsel);
>+	if (rc)
>+		return rc;
>+
>+	/* Extract mode and selected input reference */
>+	zldpll->refsel_mode = FIELD_GET(ZL_DPLL_MODE_REFSEL_MODE,
>+					dpll_mode_refsel);

Who sets this?


>+	zldpll->forced_ref = FIELD_GET(ZL_DPLL_MODE_REFSEL_REF,
>+				       dpll_mode_refsel);
>+
>+	zldpll->dpll_dev = dpll_device_get(zldev->clock_id, zldpll->id,
>+					   THIS_MODULE);
>+	if (IS_ERR(zldpll->dpll_dev)) {
>+		rc = PTR_ERR(zldpll->dpll_dev);
>+		zldpll->dpll_dev = NULL;
>+
>+		return rc;
>+	}
>+
>+	rc = dpll_device_register(zldpll->dpll_dev,
>+				  zl3073x_prop_dpll_type_get(zldev, zldpll->id),
>+				  &zl3073x_dpll_device_ops, zldpll);
>+	if (rc) {
>+		dpll_device_put(zldpll->dpll_dev);
>+		zldpll->dpll_dev = NULL;
>+	}
>+
>+	return rc;
>+}

[...]