thermal: exynos: Add support to handle many instances of TMU

This patch adds support to handle multiple instances of the TMU controllers.
This is done by removing the static structure to register with the core thermal
and creating it dynamically for each instance of the TMU controller. The
interrupt is made shared type to handle shared interrupts. Now since the ISR needs
the core thermal framework to be registered so request_irq is moved after the core
registration is done.
Also the identifier of the TMU controller is extracted from device tree alias. This
will be used for TMU specific initialisation.

Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index ef5dc0ebff7..53fa7024090 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -250,4 +250,17 @@ struct exynos_tmu_platform_data {
 	unsigned int freq_tab_count;
 	const struct exynos_tmu_registers *registers;
 };
+
+/**
+ * struct exynos_tmu_init_data
+ * @tmu_count: number of TMU instances.
+ * @tmu_data: platform data of all TMU instances.
+ * This structure is required to store data for multi-instance exynos tmu
+ * driver.
+ */
+struct exynos_tmu_init_data {
+	int tmu_count;
+	struct exynos_tmu_platform_data tmu_data[];
+};
+
 #endif /* _EXYNOS_TMU_H */