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From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>,
	Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Luca Weiss <luca.weiss@fairphone.com>,
	Abel Vesa <abel.vesa@linaro.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Johan Hovold <johan+linaro@kernel.org>,
	Pengyu Luo <mitltlatltl@gmail.com>
Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] phy: qualcomm: phy-qcom-eusb2-repeater: Add squelch detect param update
Date: Wed, 3 Dec 2025 12:15:00 +0100	[thread overview]
Message-ID: <fe15827d-c15c-4b4e-973e-3cc379714467@oss.qualcomm.com> (raw)
In-Reply-To: <20251203083629.2395451-3-krishna.kurapati@oss.qualcomm.com>

On 12/3/25 9:36 AM, Krishna Kurapati wrote:
> Add support for overriding Squelch Detect parameter.
> 
> Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
> ---

[...]

>  struct eusb2_repeater_init_tbl_reg {
>  	unsigned int reg;
>  	unsigned int value;
> @@ -120,7 +131,9 @@ static int eusb2_repeater_init(struct phy *phy)
>  	struct regmap *regmap = rptr->regmap;
>  	u32 base = rptr->base;
>  	u32 poll_val;
> +	s32 dt_val;
>  	int ret;
> +	int i;
>  	u8 val;
>  
>  	ret = regulator_bulk_enable(rptr->cfg->num_vregs, rptr->vregs);
> @@ -147,6 +160,14 @@ static int eusb2_repeater_init(struct phy *phy)
>  	if (!of_property_read_u8(np, "qcom,tune-res-fsdif", &val))
>  		regmap_write(regmap, base + EUSB2_TUNE_RES_FSDIF, val);
>  
> +	if (!of_property_read_s32(np, "qcom,squelch-detector-bp", &dt_val)) {
> +		for (i = 0; i < 8; i++) {
> +			if (squelch_detector[i] == dt_val)
> +				val = i;
> +		}
> +		regmap_write(regmap, base + EUSB2_TUNE_SQUELCH_U, val);


How about:

if (!of_property..) {
	for (i = 0; i < ARRAY_SIZE(squelch_detector); i++) {
		if (squelch_detector[i] == dt_val) {
			regmap_write()
			break;
		}
	}
}

We could also validate the value (if none found but property present, error
out), but the dt checker already lists all the available values so that may
not be necessary

Konrad

  reply	other threads:[~2025-12-03 11:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-03  8:36 [PATCH 0/3] Add eusb2 repeater squelch detect parameter override Krishna Kurapati
2025-12-03  8:36 ` [PATCH 1/3] dt-bindings: phy: qcom,snps-eusb2-repeater: Add squelch param update Krishna Kurapati
2025-12-03 11:16   ` Konrad Dybcio
2025-12-03  8:36 ` [PATCH 2/3] phy: qualcomm: phy-qcom-eusb2-repeater: Add squelch detect " Krishna Kurapati
2025-12-03 11:15   ` Konrad Dybcio [this message]
2025-12-03 11:25     ` Krishna Kurapati PSSNV
2025-12-03  8:36 ` [PATCH 3/3] arm64: dts: qcom: sm8750-mtp: Add eusb2 repeater tuning parameters Krishna Kurapati

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