[RFC PATCH 3/3] ARM: exynos4: Add thermal sensor driver platform device support
From: Amit Daniel Kachhap
Date: Wed Dec 21 2011 - 07:01:05 EST
This patch adds necessary source definations needed for TMU driver and
the platform device support.
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@xxxxxxxxxx>
---
arch/arm/mach-exynos/Kconfig | 12 +++++
arch/arm/mach-exynos/Makefile | 1 +
arch/arm/mach-exynos/clock.c | 4 ++
arch/arm/mach-exynos/dev-tmu.c | 64 +++++++++++++++++++++++++++++
arch/arm/mach-exynos/include/mach/irqs.h | 2 +
arch/arm/mach-exynos/include/mach/map.h | 1 +
arch/arm/mach-exynos/mach-origen.c | 1 +
arch/arm/plat-samsung/include/plat/devs.h | 1 +
8 files changed, 86 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-exynos/dev-tmu.c
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 724ec0f..cfc6119 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -82,6 +82,17 @@ config EXYNOS4_DEV_DWMCI
help
Compile in platform device definitions for DWMCI
+config EXYNOS4_DEV_TMU
+ bool "Exynos4 tmu device support"
+ default n
+ depends on ARCH_EXYNOS4
+ ---help---
+ Compile in platform device definitions for TMU. This macro also
+ enables compilation hwmon base TMU driver and also allows compilation
+ of the platform device files. The platform data in this case is trip
+ temperature and some tmu h/w configurations related parameter.
+
+
config EXYNOS4_SETUP_I2C1
bool
help
@@ -288,6 +299,7 @@ config MACH_ORIGEN
select SAMSUNG_DEV_BACKLIGHT
select SAMSUNG_DEV_PWM
select EXYNOS4_DEV_PD
+ select EXYNOS4_DEV_TMU
select EXYNOS4_SETUP_FIMD0
select EXYNOS4_SETUP_SDHCI
select EXYNOS4_SETUP_USB_PHY
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 59069a3..d2493e8 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o
obj-$(CONFIG_EXYNOS4_DEV_PD) += dev-pd.o
obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o
obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o
+obj-$(CONFIG_EXYNOS4_DEV_TMU) += dev-tmu.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMD0) += setup-fimd0.o
diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c
index 2894f0a..edecc5e 100644
--- a/arch/arm/mach-exynos/clock.c
+++ b/arch/arm/mach-exynos/clock.c
@@ -567,6 +567,10 @@ static struct clk init_clocks_off[] = {
.enable = exynos4_clk_ip_peril_ctrl,
.ctrlbit = (1 << 15),
}, {
+ .name = "tmu_apbif",
+ .enable = exynos4_clk_ip_perir_ctrl,
+ .ctrlbit = (1 << 17),
+ }, {
.name = "keypad",
.enable = exynos4_clk_ip_perir_ctrl,
.ctrlbit = (1 << 16),
diff --git a/arch/arm/mach-exynos/dev-tmu.c b/arch/arm/mach-exynos/dev-tmu.c
new file mode 100644
index 0000000..2e98912
--- /dev/null
+++ b/arch/arm/mach-exynos/dev-tmu.c
@@ -0,0 +1,64 @@
+/* linux/arch/arm/mach-exynos4/dev-tmu.c
+ *
+ * Copyright 2011 by SAMSUNG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/platform_data/exynos4_tmu.h>
+#include <asm/irq.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+#include <plat/devs.h>
+
+static struct resource exynos4_tmu_resource[] = {
+ [0] = {
+ .start = EXYNOS4_PA_TMU,
+ .end = EXYNOS4_PA_TMU + 0xFFFF - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_TMU_TRIG0,
+ .end = IRQ_TMU_TRIG0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct exynos4_tmu_platform_data default_tmu_data = {
+ .threshold = 80,
+ .trigger_levels[0] = 2,
+ .trigger_levels[1] = 5,
+ .trigger_levels[2] = 20,
+ .trigger_levels[3] = 30,
+ .trigger_level0_en = 1,
+ .trigger_level1_en = 1,
+ .trigger_level2_en = 1,
+ .trigger_level3_en = 1,
+ .gain = 15,
+ .reference_voltage = 7,
+ .cal_type = TYPE_ONE_POINT_TRIMMING,
+ .freq_tab[0] = {
+ .freq_clip_pctg[0] = 30,
+ },
+ .freq_tab[1] = {
+ .freq_clip_pctg[0] = 99,
+ },
+ .freq_tab_count = 2,
+};
+
+struct platform_device exynos4_device_tmu = {
+ .name = "exynos4-tmu",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(exynos4_tmu_resource),
+ .resource = exynos4_tmu_resource,
+ .dev = {
+ .platform_data = &default_tmu_data,
+ },
+};
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index dfd4b7e..d66a24b 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -125,6 +125,8 @@
#define COMBINER_GROUP(x) ((x) * MAX_IRQ_IN_COMBINER + IRQ_SPI(128))
#define COMBINER_IRQ(x, y) (COMBINER_GROUP(x) + y)
+#define IRQ_TMU_TRIG0 COMBINER_IRQ(2, 4)
+#define IRQ_TMU_TRIG1 COMBINER_IRQ(3, 4)
#define IRQ_SYSMMU_MDMA0_0 COMBINER_IRQ(4, 0)
#define IRQ_SYSMMU_SSS_0 COMBINER_IRQ(4, 1)
#define IRQ_SYSMMU_FIMC0_0 COMBINER_IRQ(4, 2)
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 058541d..0d79b88 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -66,6 +66,7 @@
#define EXYNOS4_PA_COREPERI 0x10500000
#define EXYNOS4_PA_TWD 0x10500600
#define EXYNOS4_PA_L2CC 0x10502000
+#define EXYNOS4_PA_TMU 0x100C0000
#define EXYNOS4_PA_MDMA 0x10810000
#define EXYNOS4_PA_PDMA0 0x12680000
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index f80b563..699140a 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -615,6 +615,7 @@ static struct platform_device *origen_devices[] __initdata = {
&exynos4_device_pd[PD_MFC],
&origen_device_gpiokeys,
&origen_lcd_hv070wsa,
+ &exynos4_device_tmu,
};
/* LCD Backlight data */
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index ab633c9..74cbf0d 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -135,6 +135,7 @@ extern struct platform_device exynos4_device_pcm2;
extern struct platform_device exynos4_device_pd[];
extern struct platform_device exynos4_device_spdif;
extern struct platform_device exynos4_device_sysmmu;
+extern struct platform_device exynos4_device_tmu;
extern struct platform_device samsung_asoc_dma;
extern struct platform_device samsung_asoc_idma;
--
1.7.1
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