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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: Komal Bajaj <quic_kbajaj@quicinc.com>,
	agross@kernel.org, andersson@kernel.org,
	konrad.dybcio@linaro.org, robh+dt@kernel.org,
	krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
	srinivas.kandagatla@linaro.org
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/6] soc: qcom: Add LLCC support for multi channel DDR
Date: Thu, 10 Aug 2023 13:32:41 +0100	[thread overview]
Message-ID: <a663ea2c-4724-20b3-628e-8831b6989655@linaro.org> (raw)
In-Reply-To: <20230810061140.15608-5-quic_kbajaj@quicinc.com>

On 10/08/2023 07:11, Komal Bajaj wrote:
> +	ret = nvmem_cell_read_u8(&pdev->dev, "multi-chan-ddr", cfg_index);
> +	if (ret == -ENOENT || ret == -EOPNOTSUPP) {
> +		if (num_config != DEF_NUM_CFG)
> +			return -EINVAL;

In other words if multi-chan-ddr is not present in the dts and the 
num_config != 1 return -EINVAL

You can just as easily say if (num_config > 1) and drop the define from 
this code.

> +		*cfg_index = DEF_NUM_CFG - 1;
> +		return 0;

*cfg_index = 0;

For example if #define DEF_NUM_CFG 0x20 then taking the last index of it 
would be 100% wrong.

Please kill that define.

---
bod

  parent reply	other threads:[~2023-08-10 12:32 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-10  6:11 [PATCH 0/6] soc: qcom: llcc: Add support for QDU1000/QRU1000 Komal Bajaj
2023-08-10  6:11 ` [PATCH 1/6] dt-bindings: cache: qcom,llcc: Add LLCC compatible " Komal Bajaj
2023-08-10  7:20   ` Rob Herring
2023-08-10 10:27     ` Komal Bajaj
2023-08-10 16:36       ` Rob Herring
2023-08-10  6:11 ` [PATCH 2/6] soc: qcom: llcc: Refactor llcc driver to support multiple configuration Komal Bajaj
2023-08-10 12:22   ` Bryan O'Donoghue
2023-08-10 15:04     ` Mukesh Ojha
2023-08-24  8:56     ` Komal Bajaj
2023-08-10  6:11 ` [PATCH 3/6] nvmem: core: Add stub for nvmem_cell_read_u8 Komal Bajaj
2023-08-10  6:11 ` [PATCH 4/6] soc: qcom: Add LLCC support for multi channel DDR Komal Bajaj
2023-08-10 11:52   ` Bryan O'Donoghue
2023-08-10 12:32   ` Bryan O'Donoghue [this message]
2023-08-24  8:58     ` Komal Bajaj
2023-08-10  6:11 ` [PATCH 5/6] soc: qcom: llcc: Updating the macro name Komal Bajaj
2023-08-10  6:11 ` [PATCH 6/6] soc: qcom: llcc: Add QDU1000 and QRU1000 LLCC support Komal Bajaj
2023-08-10 14:45 ` [PATCH 0/6] soc: qcom: llcc: Add support for QDU1000/QRU1000 Mukesh Ojha

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