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 ADDRESS_MULTIPLE 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 and SHARED_MEMORY to ADDRESS_MULTIPLE.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
index 284f530..a1aa602 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 register set of TMU instance and second set belongs to
+ registers shared with the TMU instance.
- 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 c308a3d..d9e7663 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 @@
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;
@@ -298,7 +298,7 @@
}
/*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);
@@ -455,7 +455,7 @@
/* 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;
}
@@ -580,7 +580,7 @@
* Check if the TMU shares some registers and then try to map the
* memory of common registers.
*/
- if (!TMU_SUPPORTS(pdata, SHARED_MEMORY))
+ if (!TMU_SUPPORTS(pdata, ADDRESS_MULTIPLE))
return 0;
if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
@@ -588,9 +588,9 @@
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_common) {
+ if (!data->base_second) {
dev_err(&pdev->dev, "Failed to ioremap memory\n");
return -ENOMEM;
}
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index 980859a..0d6b32f 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -60,7 +60,7 @@
* state(active/idle) can be checked.
* TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation
* sample time.
- * TMU_SUPPORT_SHARED_MEMORY - This feature tells that the different TMU
+ * TMU_SUPPORT_ADDRESS_MULTIPLE - This feature tells that the different TMU
* sensors shares some common registers.
* TMU_SUPPORT - macro to compare the above features with the supplied.
*/
@@ -70,7 +70,7 @@
#define TMU_SUPPORT_FALLING_TRIP BIT(3)
#define TMU_SUPPORT_READY_STATUS BIT(4)
#define TMU_SUPPORT_EMUL_TIME BIT(5)
-#define TMU_SUPPORT_SHARED_MEMORY BIT(6)
+#define TMU_SUPPORT_ADDRESS_MULTIPLE BIT(6)
#define TMU_SUPPORTS(a, b) (a->features & TMU_SUPPORT_ ## b)
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index 7d58219..9816294 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -255,7 +255,7 @@
.type = SOC_ARCH_EXYNOS5440, \
.registers = &exynos5440_tmu_registers, \
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
- TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_SHARED_MEMORY),
+ TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_ADDRESS_MULTIPLE),
struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
.tmu_data = {