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Tue, 3 Sep 2024 06:21:59 GMT Received: from jingyw-gv.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 2 Sep 2024 23:21:57 -0700 From: Jingyi Wang Date: Tue, 3 Sep 2024 14:21:31 +0800 Subject: [PATCH 3/4] soc: qcom: llcc: add errata to get bank num Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20240903-qcs8300_llcc_driver-v1-3-228659bdf067@quicinc.com> References: <20240903-qcs8300_llcc_driver-v1-0-228659bdf067@quicinc.com> In-Reply-To: <20240903-qcs8300_llcc_driver-v1-0-228659bdf067@quicinc.com> To: Bjorn Andersson , Konrad Dybcio , Conor Dooley , Rob Herring , Krzysztof Kozlowski CC: , , , Jingyi Wang X-Mailer: b4 0.15-dev-99b12 X-Developer-Signature: v=1; a=ed25519-sha256; t=1725344509; l=1216; i=quic_jingyw@quicinc.com; s=20240829; h=from:subject:message-id; bh=Q8DCJS2Qf7zoKwoyq4aZeaqvBd6zXcW2HcvUkU0+KpE=; 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Signed-off-by: Jingyi Wang --- drivers/soc/qcom/llcc-qcom.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c index 8fa4ffd3a9b5..3fb45e625d82 100644 --- a/drivers/soc/qcom/llcc-qcom.c +++ b/drivers/soc/qcom/llcc-qcom.c @@ -1275,12 +1275,17 @@ static int qcom_llcc_probe(struct platform_device *pdev) goto err; cfg = &cfgs->llcc_config[cfg_index]; - ret = regmap_read(regmap, cfg->reg_offset[LLCC_COMMON_STATUS0], &num_banks); - if (ret) - goto err; + if (unlikely(!of_property_read_u32(dev->of_node, "num-banks", &num_banks))) { + /* errata: get num of llcc banks. */ + } else { + ret = regmap_read(regmap, cfg->reg_offset[LLCC_COMMON_STATUS0], &num_banks); + if (ret) + goto err; + + num_banks &= LLCC_LB_CNT_MASK; + num_banks >>= LLCC_LB_CNT_SHIFT; + } - num_banks &= LLCC_LB_CNT_MASK; - num_banks >>= LLCC_LB_CNT_SHIFT; drv_data->num_banks = num_banks; drv_data->regmaps = devm_kcalloc(dev, num_banks, sizeof(*drv_data->regmaps), GFP_KERNEL);