linux-kernel - [PATCH v2 1/2] soc: qcom: rpmh-rsc: Factor "tcs_reg_addr" and "tcs_cmd

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Message-Id: <20200414131010.v2.1.Ic70288f256ff0be65cac6a600367212dfe39f6c9@changeid>
Date:   Tue, 14 Apr 2020 13:10:15 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     mkshah@...eaurora.org, joe@...ches.com, swboyd@...omium.org,
        mka@...omium.org, evgreen@...omium.org,
        Douglas Anderson <dianders@...omium.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] soc: qcom: rpmh-rsc: Factor "tcs_reg_addr" and "tcs_cmd_addr" calculation

We can make some of the register access functions more readable by
factoring out the calculations a little bit.

Suggested-by: Joe Perches <joe@...ches.com>
Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

Changes in v2:
- Make drv parameter const.

 drivers/soc/qcom/rpmh-rsc.c | 41 +++++++++++++++++++++++--------------
 1 file changed, 26 insertions(+), 15 deletions(-)

diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 732316bb67dc..f988e9cc2c30 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -136,36 +136,47 @@
  *  +---------------------------------------------------+
  */
 
-static u32 read_tcs_cmd(struct rsc_drv *drv, int reg, int tcs_id, int cmd_id)
+static inline void __iomem *
+tcs_reg_addr(const struct rsc_drv *drv, int reg, int tcs_id)
 {
-	return readl_relaxed(drv->tcs_base + RSC_DRV_TCS_OFFSET * tcs_id + reg +
-			     RSC_DRV_CMD_OFFSET * cmd_id);
+	return drv->tcs_base + RSC_DRV_TCS_OFFSET * tcs_id + reg;
 }
 
-static u32 read_tcs_reg(struct rsc_drv *drv, int reg, int tcs_id)
+static inline void __iomem *
+tcs_cmd_addr(const struct rsc_drv *drv, int reg, int tcs_id, int cmd_id)
 {
-	return readl_relaxed(drv->tcs_base + RSC_DRV_TCS_OFFSET * tcs_id + reg);
+	return tcs_reg_addr(drv, reg, tcs_id) + RSC_DRV_CMD_OFFSET * cmd_id;
 }
 
-static void write_tcs_cmd(struct rsc_drv *drv, int reg, int tcs_id, int cmd_id,
-			  u32 data)
+static u32 read_tcs_cmd(const struct rsc_drv *drv, int reg, int tcs_id,
+			int cmd_id)
+{
+	return readl_relaxed(tcs_cmd_addr(drv, reg, tcs_id, cmd_id));
+}
+
+static u32 read_tcs_reg(const struct rsc_drv *drv, int reg, int tcs_id)
 {
-	writel_relaxed(data, drv->tcs_base + RSC_DRV_TCS_OFFSET * tcs_id + reg +
-		       RSC_DRV_CMD_OFFSET * cmd_id);
+	return readl_relaxed(tcs_reg_addr(drv, reg, tcs_id));
 }
 
-static void write_tcs_reg(struct rsc_drv *drv, int reg, int tcs_id, u32 data)
+static void write_tcs_cmd(const struct rsc_drv *drv, int reg, int tcs_id,
+			  int cmd_id, u32 data)
+{
+	writel_relaxed(data, tcs_cmd_addr(drv, reg, tcs_id, cmd_id));
+}
+
+static void write_tcs_reg(const struct rsc_drv *drv, int reg, int tcs_id,
+			  u32 data)
 {
-	writel_relaxed(data, drv->tcs_base + RSC_DRV_TCS_OFFSET * tcs_id + reg);
+	writel_relaxed(data, tcs_reg_addr(drv, reg, tcs_id));
 }
 
-static void write_tcs_reg_sync(struct rsc_drv *drv, int reg, int tcs_id,
+static void write_tcs_reg_sync(const struct rsc_drv *drv, int reg, int tcs_id,
 			       u32 data)
 {
-	writel(data, drv->tcs_base + RSC_DRV_TCS_OFFSET * tcs_id + reg);
+	writel(data, tcs_reg_addr(drv, reg, tcs_id));
 	for (;;) {
-		if (data == readl(drv->tcs_base + reg +
-				  RSC_DRV_TCS_OFFSET * tcs_id))
+		if (data == readl(tcs_reg_addr(drv, reg, tcs_id)))
 			break;
 		udelay(1);
 	}
-- 
2.26.0.110.g2183baf09c-goog