thermal: introduce TI SoC thermal driver

This patch moves the ti-soc-thermal driver out of
the staging tree to the thermal tree.

Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <eduardo.valentin@ti.com>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: Radhesh Fadnis <radhesh.fadnis@ti.com>
Cc: Cyril Roelandt <tipecaml@gmail.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal.h b/drivers/thermal/ti-soc-thermal/ti-thermal.h
new file mode 100644
index 000000000000..5055777727cc
--- /dev/null
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal.h
@@ -0,0 +1,117 @@
+/*
+ * OMAP thermal definitions
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ * Contact:
+ *   Eduardo Valentin <eduardo.valentin@ti.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+#ifndef __TI_THERMAL_H
+#define __TI_THERMAL_H
+
+#include "ti-bandgap.h"
+
+/* sensors gradient and offsets */
+#define OMAP_GRADIENT_SLOPE_4430				0
+#define OMAP_GRADIENT_CONST_4430				20000
+#define OMAP_GRADIENT_SLOPE_4460				348
+#define OMAP_GRADIENT_CONST_4460				-9301
+#define OMAP_GRADIENT_SLOPE_4470				308
+#define OMAP_GRADIENT_CONST_4470				-7896
+
+#define OMAP_GRADIENT_SLOPE_5430_CPU				65
+#define OMAP_GRADIENT_CONST_5430_CPU				-1791
+#define OMAP_GRADIENT_SLOPE_5430_GPU				117
+#define OMAP_GRADIENT_CONST_5430_GPU				-2992
+
+/* PCB sensor calculation constants */
+#define OMAP_GRADIENT_SLOPE_W_PCB_4430				0
+#define OMAP_GRADIENT_CONST_W_PCB_4430				20000
+#define OMAP_GRADIENT_SLOPE_W_PCB_4460				1142
+#define OMAP_GRADIENT_CONST_W_PCB_4460				-393
+#define OMAP_GRADIENT_SLOPE_W_PCB_4470				1063
+#define OMAP_GRADIENT_CONST_W_PCB_4470				-477
+
+#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU			100
+#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU			484
+#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU			464
+#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU			-5102
+
+/* trip points of interest in milicelsius (at hotspot level) */
+#define OMAP_TRIP_COLD						100000
+#define OMAP_TRIP_HOT						110000
+#define OMAP_TRIP_SHUTDOWN					125000
+#define OMAP_TRIP_NUMBER					2
+#define OMAP_TRIP_STEP							\
+	((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))
+
+/* Update rates */
+#define FAST_TEMP_MONITORING_RATE				250
+
+/* helper macros */
+/**
+ * ti_thermal_get_trip_value - returns trip temperature based on index
+ * @i:	trip index
+ */
+#define ti_thermal_get_trip_value(i)					\
+	(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
+
+/**
+ * ti_thermal_is_valid_trip - check for trip index
+ * @i:	trip index
+ */
+#define ti_thermal_is_valid_trip(trip)				\
+	((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
+
+#ifdef CONFIG_TI_THERMAL
+int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
+int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
+int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
+int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
+int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
+#else
+static inline
+int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
+{
+	return 0;
+}
+
+static inline
+int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
+{
+	return 0;
+}
+
+static inline
+int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
+{
+	return 0;
+}
+
+static inline
+int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
+{
+	return 0;
+}
+
+static inline
+int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
+{
+	return 0;
+}
+#endif
+#endif