linux-kernel - [PATCH 2/3] thermal: samsung: change base_common to more meaningful base

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Date:	Wed, 28 Aug 2013 14:46:48 +0530
From:	Naveen Krishna Chatradhi <ch.naveen@...sung.com>
To:	linux-pm@...r.kernel.org, rui.zhang@...el.com,
	eduardo.valentin@...com
Cc:	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	amit.daniel@...sung.com, kgene.kim@...sung.com,
	naveenkrishna.ch@...il.com, devicetree@...r.kernel.org
Subject: [PATCH 2/3] thermal: samsung: change base_common to more meaningful
 base_second

On Exynos5440 and Exynos5420 there are registers common
across the TMU channels.

To support that, we introduced a SHARED_MEMORY flag in the
driver and the 2nd set of register base and size are provided
in the "reg" property of the node.

As per Amit's suggestion, this patch changes the base_common
to base_second.
https://lkml.org/lkml/2013/8/1/38

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@...sung.com>
---
 .../devicetree/bindings/thermal/exynos-thermal.txt |    4 ++--
 drivers/thermal/samsung/exynos_tmu.c               |   10 +++++-----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
index 284f530..116cca0 100644
--- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
@@ -11,8 +11,8 @@
 - reg : Address range of the thermal registers. For soc's which has multiple
 	instances of TMU and some registers are shared across all TMU's like
 	interrupt related then 2 set of register has to supplied. First set
-	belongs	to each instance of TMU and second set belongs to common TMU
-	registers.
+	belongs	to each instance of TMU and second set belongs to second set
+	of common TMU registers.
 - interrupts : Should contain interrupt for thermal system
 - clocks : The main clock for TMU device
 - clock-names : Thermal system clock name
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index d201ed8..c56f7e5 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -41,7 +41,7 @@
  * @id: identifier of the one instance of the TMU controller.
  * @pdata: pointer to the tmu platform/configuration data
  * @base: base address of the single instance of the TMU controller.
- * @base_common: base address of the common registers of the TMU controller.
+ * @base_second: base address of the common registers of the TMU controller.
  * @irq: irq number of the TMU controller.
  * @soc: id of the SOC type.
  * @irq_work: pointer to the irq work structure.
@@ -56,7 +56,7 @@ struct exynos_tmu_data {
 	int id;
 	struct exynos_tmu_platform_data *pdata;
 	void __iomem *base;
-	void __iomem *base_common;
+	void __iomem *base_second;
 	int irq;
 	enum soc_type soc;
 	struct work_struct irq_work;
@@ -297,7 +297,7 @@ skip_calib_data:
 	}
 	/*Clear the PMIN in the common TMU register*/
 	if (reg->tmu_pmin && !data->id)
-		writel(0, data->base_common + reg->tmu_pmin);
+		writel(0, data->base_second + reg->tmu_pmin);
 out:
 	clk_disable(data->clk);
 	mutex_unlock(&data->lock);
@@ -451,7 +451,7 @@ static void exynos_tmu_work(struct work_struct *work)
 
 	/* Find which sensor generated this interrupt */
 	if (reg->tmu_irqstatus) {
-		val_type = readl(data->base_common + reg->tmu_irqstatus);
+		val_type = readl(data->base_second + reg->tmu_irqstatus);
 		if (!((val_type >> data->id) & 0x1))
 			goto out;
 	}
@@ -590,7 +590,7 @@ static int exynos_map_dt_data(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	data->base_common = devm_ioremap(&pdev->dev, res.start,
+	data->base_second = devm_ioremap(&pdev->dev, res.start,
 					resource_size(&res));
 	if (!data->base) {
 		dev_err(&pdev->dev, "Failed to ioremap memory\n");
-- 
1.7.9.5

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