thermal: exynos: Add TMU features to check instead of using SOC type

[firefly-linux-kernel-4.4.55.git] / drivers / thermal / samsung / exynos_tmu.h

diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index 53fa7024090af30783116ef50ecabd38015b0e57..ff8844f3b99bd1881f82f5bc1fa32b167325f590 100644 (file)
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -42,6 +42,34 @@ enum soc_type {
        SOC_ARCH_EXYNOS,
 };
 
+/**
+ * EXYNOS TMU supported features.
+ * TMU_SUPPORT_EMULATION - This features is used to set user defined
+ *                     temperature to the TMU controller.
+ * TMU_SUPPORT_MULTI_INST - This features denotes that the soc
+ *                     has many instances of TMU.
+ * TMU_SUPPORT_TRIM_RELOAD - This features shows that trimming can
+ *                     be reloaded.
+ * TMU_SUPPORT_FALLING_TRIP - This features shows that interrupt can
+ *                     be registered for falling trips also.
+ * TMU_SUPPORT_READY_STATUS - This feature tells that the TMU current
+ *                     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
+ *                     sensors shares some common registers.
+ * TMU_SUPPORT - macro to compare the above features with the supplied.
+ */
+#define TMU_SUPPORT_EMULATION                  BIT(0)
+#define TMU_SUPPORT_MULTI_INST                 BIT(1)
+#define TMU_SUPPORT_TRIM_RELOAD                        BIT(2)
+#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_SUPPORTS(a, b)     (a->features & TMU_SUPPORT_ ## b)
+
 /**
  * struct exynos_tmu_register - register descriptors to access registers and
  * bitfields. The register validity, offsets and bitfield values may vary
@@ -222,6 +250,8 @@ struct exynos_tmu_registers {
  *     applicable to only some of the trigger levels.
  * @registers: Pointer to structure containing all the TMU controller registers
  *     and bitfields shifts and masks.
+ * @features: a bitfield value indicating the features supported in SOC like
+ *     emulation, multi instance etc
  *
  * This structure is required for configuration of exynos_tmu driver.
  */
@@ -249,6 +279,7 @@ struct exynos_tmu_platform_data {
        struct freq_clip_table freq_tab[4];
        unsigned int freq_tab_count;
        const struct exynos_tmu_registers *registers;
+       unsigned int features;
 };
 
 /**