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From:   Komal Bajaj <quic_kbajaj@quicinc.com>
To:     <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>,
        Komal Bajaj <quic_kbajaj@quicinc.com>
Subject: [PATCH 2/6] soc: qcom: llcc: Refactor llcc driver to support multiple configuration
Date:   Thu, 10 Aug 2023 11:41:36 +0530
Message-ID: <20230810061140.15608-3-quic_kbajaj@quicinc.com>
In-Reply-To: <20230810061140.15608-1-quic_kbajaj@quicinc.com>
References: <20230810061140.15608-1-quic_kbajaj@quicinc.com>
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Precedence: bulk

Refactor driver to support multiple configuration for llcc on a target.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 drivers/soc/qcom/llcc-qcom.c | 269 ++++++++++++++++++++++++-----------
 1 file changed, 183 insertions(+), 86 deletions(-)

diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 67c19ed2219a..76e8083d053d 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -66,6 +66,8 @@
 #define LLCC_VERSION_2_1_0_0          0x02010000
 #define LLCC_VERSION_4_1_0_0          0x04010000

+#define DEF_NUM_CFG                   1
+
 /**
  * struct llcc_slice_config - Data associated with the llcc slice
  * @usecase_id: Unique id for the client's use case
@@ -127,6 +129,11 @@ struct qcom_llcc_config {
 	bool no_edac;
 };

+struct qcom_sct_config {
+	const struct qcom_llcc_config *llcc_config;
+	int num_config;
+};
+
 enum llcc_reg_offset {
 	LLCC_COMMON_HW_INFO,
 	LLCC_COMMON_STATUS0,
@@ -423,101 +430,185 @@ static const u32 llcc_v2_1_reg_offset[] = {
 	[LLCC_COMMON_STATUS0]	= 0x0003400c,
 };

-static const struct qcom_llcc_config sc7180_cfg = {
-	.sct_data	= sc7180_data,
-	.size		= ARRAY_SIZE(sc7180_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sc7180_cfg[] = {
+	{
+		.sct_data	= sc7180_data,
+		.size		= ARRAY_SIZE(sc7180_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sc7280_cfg = {
-	.sct_data	= sc7280_data,
-	.size		= ARRAY_SIZE(sc7280_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sc7280_cfg[] = {
+	{
+		.sct_data	= sc7280_data,
+		.size		= ARRAY_SIZE(sc7280_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sc8180x_cfg = {
-	.sct_data	= sc8180x_data,
-	.size		= ARRAY_SIZE(sc8180x_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sc8180x_cfg[] = {
+	{
+		.sct_data	= sc8180x_data,
+		.size		= ARRAY_SIZE(sc8180x_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sc8280xp_cfg = {
-	.sct_data	= sc8280xp_data,
-	.size		= ARRAY_SIZE(sc8280xp_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sc8280xp_cfg[] = {
+	{
+		.sct_data	= sc8280xp_data,
+		.size		= ARRAY_SIZE(sc8280xp_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sdm845_cfg = {
-	.sct_data	= sdm845_data,
-	.size		= ARRAY_SIZE(sdm845_data),
-	.need_llcc_cfg	= false,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
-	.no_edac	= true,
+static const struct qcom_llcc_config sdm845_cfg[] = {
+	{
+		.sct_data	= sdm845_data,
+		.size		= ARRAY_SIZE(sdm845_data),
+		.need_llcc_cfg	= false,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+		.no_edac	= true,
+	},
 };

-static const struct qcom_llcc_config sm6350_cfg = {
-	.sct_data	= sm6350_data,
-	.size		= ARRAY_SIZE(sm6350_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm6350_cfg[] = {
+	{
+		.sct_data	= sm6350_data,
+		.size		= ARRAY_SIZE(sm6350_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sm7150_cfg = {
-	.sct_data       = sm7150_data,
-	.size           = ARRAY_SIZE(sm7150_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm7150_cfg[] = {
+	{
+		.sct_data       = sm7150_data,
+		.size           = ARRAY_SIZE(sm7150_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sm8150_cfg = {
-	.sct_data       = sm8150_data,
-	.size           = ARRAY_SIZE(sm8150_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm8150_cfg[] = {
+	{
+		.sct_data       = sm8150_data,
+		.size           = ARRAY_SIZE(sm8150_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sm8250_cfg = {
-	.sct_data       = sm8250_data,
-	.size           = ARRAY_SIZE(sm8250_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm8250_cfg[] = {
+	{
+		.sct_data       = sm8250_data,
+		.size           = ARRAY_SIZE(sm8250_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
+};
+
+static const struct qcom_llcc_config sm8350_cfg[] = {
+	{
+		.sct_data       = sm8350_data,
+		.size           = ARRAY_SIZE(sm8350_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v1_reg_offset,
+		.edac_reg_offset = &llcc_v1_edac_reg_offset,
+	},
+};
+
+static const struct qcom_llcc_config sm8450_cfg[] = {
+	{
+		.sct_data       = sm8450_data,
+		.size           = ARRAY_SIZE(sm8450_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v2_1_reg_offset,
+		.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+	},
+};
+
+static const struct qcom_llcc_config sm8550_cfg[] = {
+	{
+		.sct_data       = sm8550_data,
+		.size           = ARRAY_SIZE(sm8550_data),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v2_1_reg_offset,
+		.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+	},
 };

-static const struct qcom_llcc_config sm8350_cfg = {
-	.sct_data       = sm8350_data,
-	.size           = ARRAY_SIZE(sm8350_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v1_reg_offset,
-	.edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_sct_config sc7180_cfgs = {
+	.llcc_config	= sc7180_cfg,
+	.num_config	= ARRAY_SIZE(sc7180_cfg),
 };

-static const struct qcom_llcc_config sm8450_cfg = {
-	.sct_data       = sm8450_data,
-	.size           = ARRAY_SIZE(sm8450_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v2_1_reg_offset,
-	.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+static const struct qcom_sct_config sc7280_cfgs = {
+	.llcc_config	= sc7280_cfg,
+	.num_config	= ARRAY_SIZE(sc7280_cfg),
 };

-static const struct qcom_llcc_config sm8550_cfg = {
-	.sct_data       = sm8550_data,
-	.size           = ARRAY_SIZE(sm8550_data),
-	.need_llcc_cfg	= true,
-	.reg_offset	= llcc_v2_1_reg_offset,
-	.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+static const struct qcom_sct_config sc8180x_cfgs = {
+	.llcc_config	= sc8180x_cfg,
+	.num_config	= ARRAY_SIZE(sc8180x_cfg),
+};
+
+static const struct qcom_sct_config sc8280xp_cfgs = {
+	.llcc_config	= sc8280xp_cfg,
+	.num_config	= ARRAY_SIZE(sc8280xp_cfg),
+};
+
+static const struct qcom_sct_config sdm845_cfgs = {
+	.llcc_config	= sdm845_cfg,
+	.num_config	= ARRAY_SIZE(sdm845_cfg),
+};
+
+static const struct qcom_sct_config sm6350_cfgs = {
+	.llcc_config	= sm6350_cfg,
+	.num_config	= ARRAY_SIZE(sm6350_cfg),
+};
+
+static const struct qcom_sct_config sm7150_cfgs = {
+	.llcc_config	= sm7150_cfg,
+	.num_config	= ARRAY_SIZE(sm7150_cfg),
+};
+
+static const struct qcom_sct_config sm8150_cfgs = {
+	.llcc_config	= sm8150_cfg,
+	.num_config	= ARRAY_SIZE(sm8150_cfg),
+};
+
+static const struct qcom_sct_config sm8250_cfgs = {
+	.llcc_config	= sm8250_cfg,
+	.num_config	= ARRAY_SIZE(sm8250_cfg),
+};
+
+static const struct qcom_sct_config sm8350_cfgs = {
+	.llcc_config	= sm8350_cfg,
+	.num_config	= ARRAY_SIZE(sm8350_cfg),
+};
+
+static const struct qcom_sct_config sm8450_cfgs = {
+	.llcc_config	= sm8450_cfg,
+	.num_config	= ARRAY_SIZE(sm8450_cfg),
+};
+
+static const struct qcom_sct_config sm8550_cfgs = {
+	.llcc_config	= sm8550_cfg,
+	.num_config	= ARRAY_SIZE(sm8550_cfg),
 };

 static struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
@@ -939,6 +1030,7 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	int ret, i;
 	struct platform_device *llcc_edac;
+	const struct qcom_sct_config *cfgs;
 	const struct qcom_llcc_config *cfg;
 	const struct llcc_slice_config *llcc_cfg;
 	u32 sz;
@@ -958,7 +1050,12 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 		goto err;
 	}

-	cfg = of_device_get_match_data(&pdev->dev);
+	cfgs = of_device_get_match_data(&pdev->dev);
+	if (!cfgs || cfgs->num_config != DEF_NUM_CFG) {
+		ret = -EINVAL;
+		goto err;
+	}
+	cfg = &cfgs->llcc_config[DEF_NUM_CFG - 1];

 	ret = regmap_read(regmap, cfg->reg_offset[LLCC_COMMON_STATUS0], &num_banks);
 	if (ret)
@@ -1051,18 +1148,18 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 }

 static const struct of_device_id qcom_llcc_of_match[] = {
-	{ .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfg },
-	{ .compatible = "qcom,sc7280-llcc", .data = &sc7280_cfg },
-	{ .compatible = "qcom,sc8180x-llcc", .data = &sc8180x_cfg },
-	{ .compatible = "qcom,sc8280xp-llcc", .data = &sc8280xp_cfg },
-	{ .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfg },
-	{ .compatible = "qcom,sm6350-llcc", .data = &sm6350_cfg },
-	{ .compatible = "qcom,sm7150-llcc", .data = &sm7150_cfg },
-	{ .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfg },
-	{ .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfg },
-	{ .compatible = "qcom,sm8350-llcc", .data = &sm8350_cfg },
-	{ .compatible = "qcom,sm8450-llcc", .data = &sm8450_cfg },
-	{ .compatible = "qcom,sm8550-llcc", .data = &sm8550_cfg },
+	{ .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfgs },
+	{ .compatible = "qcom,sc7280-llcc", .data = &sc7280_cfgs },
+	{ .compatible = "qcom,sc8180x-llcc", .data = &sc8180x_cfgs },
+	{ .compatible = "qcom,sc8280xp-llcc", .data = &sc8280xp_cfgs },
+	{ .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfgs },
+	{ .compatible = "qcom,sm6350-llcc", .data = &sm6350_cfgs },
+	{ .compatible = "qcom,sm7150-llcc", .data = &sm7150_cfgs },
+	{ .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfgs },
+	{ .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfgs },
+	{ .compatible = "qcom,sm8350-llcc", .data = &sm8350_cfgs },
+	{ .compatible = "qcom,sm8450-llcc", .data = &sm8450_cfgs },
+	{ .compatible = "qcom,sm8550-llcc", .data = &sm8550_cfgs },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qcom_llcc_of_match);
--
2.41.0