interconnect: icc-rpm: move bus clocks handling into qnoc_probe

All icc-rpm drivers use the same set of bus clocks. Move handling of bus
clocks to qnoc_probe. This both simplifies the code and allows using
qnoc_probe as device's probe function.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210903232421.1384199-2-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>

5 files changed, 19 insertions, 47 deletions

diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c
index 54de49ca7808..3049454685dc 100644
--- a/drivers/interconnect/qcom/icc-rpm.c
+++ b/drivers/interconnect/qcom/icc-rpm.c
@@ -86,8 +86,11 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
 	return 0;
 }
 
-int qnoc_probe(struct platform_device *pdev, size_t cd_size, int cd_num,
-	       const struct clk_bulk_data *cd)
+static const char * const bus_clocks[] = {
+	"bus", "bus_a",
+};
+
+int qnoc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	const struct qcom_icc_desc *desc;
@@ -97,6 +100,8 @@ int qnoc_probe(struct platform_device *pdev, size_t cd_size, int cd_num,
 	struct qcom_icc_provider *qp;
 	struct icc_node *node;
 	size_t num_nodes, i;
+	const char * const *cds;
+	int cd_num;
 	int ret;
 
 	/* wait for the RPM proxy */
@@ -110,7 +115,10 @@ int qnoc_probe(struct platform_device *pdev, size_t cd_size, int cd_num,
 	qnodes = desc->nodes;
 	num_nodes = desc->num_nodes;
 
-	qp = devm_kzalloc(dev, sizeof(*qp), GFP_KERNEL);
+	cds = bus_clocks;
+	cd_num = ARRAY_SIZE(bus_clocks);
+
+	qp = devm_kzalloc(dev, struct_size(qp, bus_clks, cd_num), GFP_KERNEL);
 	if (!qp)
 		return -ENOMEM;
 
@@ -119,12 +127,10 @@ int qnoc_probe(struct platform_device *pdev, size_t cd_size, int cd_num,
 	if (!data)
 		return -ENOMEM;
 
-	qp->bus_clks = devm_kmemdup(dev, cd, cd_size,
-				    GFP_KERNEL);
-	if (!qp->bus_clks)
-		return -ENOMEM;
-
+	for (i = 0; i < cd_num; i++)
+		qp->bus_clks[i].id = cds[i];
 	qp->num_clks = cd_num;
+
 	ret = devm_clk_bulk_get(dev, qp->num_clks, qp->bus_clks);
 	if (ret)
 		return ret;
diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h
index 79a6f68249c1..f4b05c20c097 100644
--- a/drivers/interconnect/qcom/icc-rpm.h
+++ b/drivers/interconnect/qcom/icc-rpm.h
@@ -22,8 +22,8 @@
  */
 struct qcom_icc_provider {
 	struct icc_provider provider;
-	struct clk_bulk_data *bus_clks;
 	int num_clks;
+	struct clk_bulk_data bus_clks[];
 };
 
 /**
@@ -66,8 +66,7 @@ struct qcom_icc_desc {
 	}
 
 
-int qnoc_probe(struct platform_device *pdev, size_t cd_size, int cd_num,
-	       const struct clk_bulk_data *cd);
+int qnoc_probe(struct platform_device *pdev);
 int qnoc_remove(struct platform_device *pdev);
 
 #endif
diff --git a/drivers/interconnect/qcom/msm8916.c b/drivers/interconnect/qcom/msm8916.c
index fc3689c8947a..fc0d48d2997a 100644
--- a/drivers/interconnect/qcom/msm8916.c
+++ b/drivers/interconnect/qcom/msm8916.c
@@ -105,11 +105,6 @@ enum {
 	MSM8916_SNOC_PNOC_SLV,
 };
 
-static const struct clk_bulk_data msm8916_bus_clocks[] = {
-	{ .id = "bus" },
-	{ .id = "bus_a" },
-};
-
 DEFINE_QNODE(bimc_snoc_mas, MSM8916_BIMC_SNOC_MAS, 8, -1, -1, MSM8916_BIMC_SNOC_SLV);
 DEFINE_QNODE(bimc_snoc_slv, MSM8916_BIMC_SNOC_SLV, 8, -1, -1, MSM8916_SNOC_INT_0, MSM8916_SNOC_INT_1);
 DEFINE_QNODE(mas_apss, MSM8916_MASTER_AMPSS_M0, 8, -1, -1, MSM8916_SLAVE_EBI_CH0, MSM8916_BIMC_SNOC_MAS, MSM8916_SLAVE_AMPSS_L2);
@@ -305,12 +300,6 @@ static struct qcom_icc_desc msm8916_pcnoc = {
 	.num_nodes = ARRAY_SIZE(msm8916_pcnoc_nodes),
 };
 
-static int msm8916_qnoc_probe(struct platform_device *pdev)
-{
-	return qnoc_probe(pdev, sizeof(msm8916_bus_clocks),
-			  ARRAY_SIZE(msm8916_bus_clocks), msm8916_bus_clocks);
-}
-
 static const struct of_device_id msm8916_noc_of_match[] = {
 	{ .compatible = "qcom,msm8916-bimc", .data = &msm8916_bimc },
 	{ .compatible = "qcom,msm8916-pcnoc", .data = &msm8916_pcnoc },
@@ -320,7 +309,7 @@ static const struct of_device_id msm8916_noc_of_match[] = {
 MODULE_DEVICE_TABLE(of, msm8916_noc_of_match);
 
 static struct platform_driver msm8916_noc_driver = {
-	.probe = msm8916_qnoc_probe,
+	.probe = qnoc_probe,
 	.remove = qnoc_remove,
 	.driver = {
 		.name = "qnoc-msm8916",
diff --git a/drivers/interconnect/qcom/msm8939.c b/drivers/interconnect/qcom/msm8939.c
index 20f31a1b4192..4a5a2ec64960 100644
--- a/drivers/interconnect/qcom/msm8939.c
+++ b/drivers/interconnect/qcom/msm8939.c
@@ -110,11 +110,6 @@ enum {
 	MSM8939_SNOC_PNOC_SLV,
 };
 
-static const struct clk_bulk_data msm8939_bus_clocks[] = {
-	{ .id = "bus" },
-	{ .id = "bus_a" },
-};
-
 DEFINE_QNODE(bimc_snoc_mas, MSM8939_BIMC_SNOC_MAS, 8, -1, -1, MSM8939_BIMC_SNOC_SLV);
 DEFINE_QNODE(bimc_snoc_slv, MSM8939_BIMC_SNOC_SLV, 16, -1, 2, MSM8939_SNOC_INT_0, MSM8939_SNOC_INT_1);
 DEFINE_QNODE(mas_apss, MSM8939_MASTER_AMPSS_M0, 16, -1, -1, MSM8939_SLAVE_EBI_CH0, MSM8939_BIMC_SNOC_MAS, MSM8939_SLAVE_AMPSS_L2);
@@ -326,12 +321,6 @@ static struct qcom_icc_desc msm8939_pcnoc = {
 	.num_nodes = ARRAY_SIZE(msm8939_pcnoc_nodes),
 };
 
-static int msm8939_qnoc_probe(struct platform_device *pdev)
-{
-	return qnoc_probe(pdev, sizeof(msm8939_bus_clocks),
-			  ARRAY_SIZE(msm8939_bus_clocks), msm8939_bus_clocks);
-}
-
 static const struct of_device_id msm8939_noc_of_match[] = {
 	{ .compatible = "qcom,msm8939-bimc", .data = &msm8939_bimc },
 	{ .compatible = "qcom,msm8939-pcnoc", .data = &msm8939_pcnoc },
@@ -342,7 +331,7 @@ static const struct of_device_id msm8939_noc_of_match[] = {
 MODULE_DEVICE_TABLE(of, msm8939_noc_of_match);
 
 static struct platform_driver msm8939_noc_driver = {
-	.probe = msm8939_qnoc_probe,
+	.probe = qnoc_probe,
 	.remove = qnoc_remove,
 	.driver = {
 		.name = "qnoc-msm8939",
diff --git a/drivers/interconnect/qcom/qcs404.c b/drivers/interconnect/qcom/qcs404.c
index 36a7e30a00be..0f2fff230b13 100644
--- a/drivers/interconnect/qcom/qcs404.c
+++ b/drivers/interconnect/qcom/qcs404.c
@@ -92,11 +92,6 @@ enum {
 	QCS404_SLAVE_LPASS,
 };
 
-static const struct clk_bulk_data qcs404_bus_clocks[] = {
-	{ .id = "bus" },
-	{ .id = "bus_a" },
-};
-
 DEFINE_QNODE(mas_apps_proc, QCS404_MASTER_AMPSS_M0, 8, 0, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
 DEFINE_QNODE(mas_oxili, QCS404_MASTER_GRAPHICS_3D, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
 DEFINE_QNODE(mas_mdp, QCS404_MASTER_MDP_PORT0, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
@@ -269,12 +264,6 @@ static struct qcom_icc_desc qcs404_snoc = {
 };
 
 
-static int qcs404_qnoc_probe(struct platform_device *pdev)
-{
-	return qnoc_probe(pdev, sizeof(qcs404_bus_clocks),
-			  ARRAY_SIZE(qcs404_bus_clocks), qcs404_bus_clocks);
-}
-
 static const struct of_device_id qcs404_noc_of_match[] = {
 	{ .compatible = "qcom,qcs404-bimc", .data = &qcs404_bimc },
 	{ .compatible = "qcom,qcs404-pcnoc", .data = &qcs404_pcnoc },
@@ -284,7 +273,7 @@ static const struct of_device_id qcs404_noc_of_match[] = {
 MODULE_DEVICE_TABLE(of, qcs404_noc_of_match);
 
 static struct platform_driver qcs404_noc_driver = {
-	.probe = qcs404_qnoc_probe,
+	.probe = qnoc_probe,
 	.remove = qnoc_remove,
 	.driver = {
 		.name = "qnoc-qcs404",