PM / devfreq: rockchip-dfi: use consistent name for private data struct

The variable name for the private data struct is 'info' in some
functions and 'data' in others. Both names do not give a clue what
type the variable has, so consistently use 'dfi'.

Link: https://lore.kernel.org/lkml/20230704093242.583575-4-s.hauer@pengutronix.de/Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

drivers/devfreq/event/rockchip-dfi.c

@@ -59,13 +59,13 @@ struct rockchip_dfi {
 
 static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev)
 {
-	struct rockchip_dfi *info = devfreq_event_get_drvdata(edev);
-	void __iomem *dfi_regs = info->regs;
+	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
+	void __iomem *dfi_regs = dfi->regs;
 	u32 val;
 	u32 ddr_type;
 
 	/* get ddr type */
-	regmap_read(info->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val);
+	regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val);
 	ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) &
 		    RK3399_PMUGRF_DDRTYPE_MASK;
 
@@ -84,28 +84,28 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev)
 
 static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev)
 {
-	struct rockchip_dfi *info = devfreq_event_get_drvdata(edev);
-	void __iomem *dfi_regs = info->regs;
+	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
+	void __iomem *dfi_regs = dfi->regs;
 
 	writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL);
 }
 
 static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev)
 {
-	struct rockchip_dfi *info = devfreq_event_get_drvdata(edev);
+	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 	u32 tmp, max = 0;
 	u32 i, busier_ch = 0;
-	void __iomem *dfi_regs = info->regs;
+	void __iomem *dfi_regs = dfi->regs;
 
 	rockchip_dfi_stop_hardware_counter(edev);
 
 	/* Find out which channel is busier */
 	for (i = 0; i < RK3399_DMC_NUM_CH; i++) {
-		info->ch_usage[i].access = readl_relaxed(dfi_regs +
+		dfi->ch_usage[i].access = readl_relaxed(dfi_regs +
 				DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4;
-		info->ch_usage[i].total = readl_relaxed(dfi_regs +
+		dfi->ch_usage[i].total = readl_relaxed(dfi_regs +
 				DDRMON_CH0_COUNT_NUM + i * 20);
-		tmp = info->ch_usage[i].access;
+		tmp = dfi->ch_usage[i].access;
 		if (tmp > max) {
 			busier_ch = i;
 			max = tmp;
@@ -118,20 +118,20 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev)
 
 static int rockchip_dfi_disable(struct devfreq_event_dev *edev)
 {
-	struct rockchip_dfi *info = devfreq_event_get_drvdata(edev);
+	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 
 	rockchip_dfi_stop_hardware_counter(edev);
-	clk_disable_unprepare(info->clk);
+	clk_disable_unprepare(dfi->clk);
 
 	return 0;
 }
 
 static int rockchip_dfi_enable(struct devfreq_event_dev *edev)
 {
-	struct rockchip_dfi *info = devfreq_event_get_drvdata(edev);
+	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 	int ret;
 
-	ret = clk_prepare_enable(info->clk);
+	ret = clk_prepare_enable(dfi->clk);
 	if (ret) {
 		dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret);
 		return ret;
@@ -149,13 +149,13 @@ static int rockchip_dfi_set_event(struct devfreq_event_dev *edev)
 static int rockchip_dfi_get_event(struct devfreq_event_dev *edev,
 				  struct devfreq_event_data *edata)
 {
-	struct rockchip_dfi *info = devfreq_event_get_drvdata(edev);
+	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 	int busier_ch;
 
 	busier_ch = rockchip_dfi_get_busier_ch(edev);
 
-	edata->load_count = info->ch_usage[busier_ch].access;
-	edata->total_count = info->ch_usage[busier_ch].total;
+	edata->load_count = dfi->ch_usage[busier_ch].access;
+	edata->total_count = dfi->ch_usage[busier_ch].total;
 
 	return 0;
 }
@@ -176,47 +176,47 @@ MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match);
 static int rockchip_dfi_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct rockchip_dfi *data;
+	struct rockchip_dfi *dfi;
 	struct devfreq_event_desc *desc;
 	struct device_node *np = pdev->dev.of_node, *node;
 
-	data = devm_kzalloc(dev, sizeof(struct rockchip_dfi), GFP_KERNEL);
-	if (!data)
+	dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL);
+	if (!dfi)
 		return -ENOMEM;
 
-	data->regs = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(data->regs))
-		return PTR_ERR(data->regs);
+	dfi->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dfi->regs))
+		return PTR_ERR(dfi->regs);
 
-	data->clk = devm_clk_get(dev, "pclk_ddr_mon");
-	if (IS_ERR(data->clk))
-		return dev_err_probe(dev, PTR_ERR(data->clk),
+	dfi->clk = devm_clk_get(dev, "pclk_ddr_mon");
+	if (IS_ERR(dfi->clk))
+		return dev_err_probe(dev, PTR_ERR(dfi->clk),
 				     "Cannot get the clk pclk_ddr_mon\n");
 
 	node = of_parse_phandle(np, "rockchip,pmu", 0);
 	if (!node)
 		return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n");
 
-	data->regmap_pmu = syscon_node_to_regmap(node);
+	dfi->regmap_pmu = syscon_node_to_regmap(node);
 	of_node_put(node);
-	if (IS_ERR(data->regmap_pmu))
-		return PTR_ERR(data->regmap_pmu);
+	if (IS_ERR(dfi->regmap_pmu))
+		return PTR_ERR(dfi->regmap_pmu);
 
-	data->dev = dev;
+	dfi->dev = dev;
 
-	desc = &data->desc;
+	desc = &dfi->desc;
 	desc->ops = &rockchip_dfi_ops;
-	desc->driver_data = data;
+	desc->driver_data = dfi;
 	desc->name = np->name;
 
-	data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc);
-	if (IS_ERR(data->edev)) {
+	dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc);
+	if (IS_ERR(dfi->edev)) {
 		dev_err(&pdev->dev,
 			"failed to add devfreq-event device\n");
-		return PTR_ERR(data->edev);
+		return PTR_ERR(dfi->edev);
 	}
 
-	platform_set_drvdata(pdev, data);
+	platform_set_drvdata(pdev, dfi);
 
 	return 0;
 }