1 files changed, 84 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32bl.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32bl.h
new file mode 100644
index 000000000..498c75496
--- /dev/null
+++ b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32bl.h
@@ -0,0 +1,84 @@
+/*
+ * arch/ubicom32/include/asm/ubicom32bl.h
+ *   Ubicom32 architecture backlight driver platform data definitions.
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
+ * it and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ *   arch/m68knommu
+ *   arch/blackfin
+ *   arch/parisc
+ */
+#ifndef _ASM_UBICOM32_UBICOM32_BL_H
+#define _ASM_UBICOM32_UBICOM32_BL_H
+
+/*
+ * Different backlight control mechanisms
+ */
+enum ubicom32bl_pwm_types {
+	/*
+	 * PWM controlled backlight
+	 */
+	UBICOM32BL_TYPE_PWM,
+
+	/*
+	 * HRT based PWM backlight
+	 */
+	UBICOM32BL_TYPE_PWM_HRT,
+
+	/*
+	 * No dimming, just on or off
+	 */
+	UBICOM32BL_TYPE_BINARY,
+};
+
+struct ubicom32bl_platform_data {
+	/*
+	 * Default intensity of the backlight 0-255
+	 */
+	u8_t				default_intensity;
+
+	/*
+	 * TRUE if the backlight sense is active low. (inverted)
+	 * FALSE if the backlight sense is active high.
+	 */
+	bool				invert;
+
+	/*
+	 * Type of the backlight
+	 */
+	enum ubicom32bl_pwm_types	type;
+
+	/*
+	 * GPIO of the backlight if UBICOM32BL_TYPE_PWM_HRT, UBICOM32BL_TYPE_BINARY
+	 */
+	unsigned			gpio;
+
+	/*
+	 * PWM channel and parameters of the backlight if UBICOM32BL_TYPE_PWM
+	 *	pre_scaler: sets the rate at which the PWM timer is clocked. (clk_core / 2^pre_scaler)
+	 *	period: sets the period of the timer in timer cycles
+	 * The duty cycle will be directly proportional to the brightness setting.
+	 */
+	u32_t				pwm_channel;
+	u8_t				pwm_prescale;
+	u16_t				pwm_period;
+};
+
+#endif /* _ASM_UBICOM32_UBICOM32_BL_H */