linux-kernel - [PATCH v5 13/25] PM / devfreq: rockchip-dfi: Pass private data struct to internal functions

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Message-Id: <20230524083153.2046084-14-s.hauer@pengutronix.de>
Date:   Wed, 24 May 2023 10:31:41 +0200
From:   Sascha Hauer <s.hauer@...gutronix.de>
To:     linux-rockchip@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>, kernel@...gutronix.de,
        Michael Riesch <michael.riesch@...fvision.net>,
        Robin Murphy <robin.murphy@....com>,
        Vincent Legoll <vincent.legoll@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH v5 13/25] PM / devfreq: rockchip-dfi: Pass private data struct to internal functions

The internal functions do not need the struct devfreq_event_dev *,
so pass them the struct rockchip_dfi *. This is a preparation for
adding perf support later which doesn't have a struct devfreq_event_dev *.

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
---
 drivers/devfreq/event/rockchip-dfi.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c
index 0a568c5551699..d39db5de7f19c 100644
--- a/drivers/devfreq/event/rockchip-dfi.c
+++ b/drivers/devfreq/event/rockchip-dfi.c
@@ -72,9 +72,8 @@ struct rockchip_dfi {
 	unsigned int channel_mask;
 };
 
-static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev)
+static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi)
 {
-	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 	void __iomem *dfi_regs = dfi->regs;
 
 	/* clear DDRMON_CTRL setting */
@@ -102,18 +101,16 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev)
 		       dfi_regs + DDRMON_CTRL);
 }
 
-static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev)
+static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi)
 {
-	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 	void __iomem *dfi_regs = dfi->regs;
 
 	writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN),
 		       dfi_regs + DDRMON_CTRL);
 }
 
-static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count)
+static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count)
 {
-	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 	u32 i;
 	void __iomem *dfi_regs = dfi->regs;
 
@@ -131,7 +128,7 @@ static int rockchip_dfi_disable(struct devfreq_event_dev *edev)
 {
 	struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev);
 
-	rockchip_dfi_stop_hardware_counter(edev);
+	rockchip_dfi_stop_hardware_counter(dfi);
 	clk_disable_unprepare(dfi->clk);
 
 	return 0;
@@ -148,7 +145,7 @@ static int rockchip_dfi_enable(struct devfreq_event_dev *edev)
 		return ret;
 	}
 
-	rockchip_dfi_start_hardware_counter(edev);
+	rockchip_dfi_start_hardware_counter(dfi);
 	return 0;
 }
 
@@ -166,7 +163,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev,
 	u32 access = 0, total = 0;
 	int i;
 
-	rockchip_dfi_read_counters(edev, &count);
+	rockchip_dfi_read_counters(dfi, &count);
 
 	/* We can only report one channel, so find the busiest one */
 	for (i = 0; i < DMC_MAX_CHANNELS; i++) {
-- 
2.39.2