dev: qpnp_led: support turning on LEDs
Adding support for turning on LEDs. Will be used as
a boot indication for supported devices. The LED will be turned-on
in bootloader and be turned-off when HLOS display takes over.
Change-Id: Icb034c8e821c52bc89b9d5045f24667696145b05
diff --git a/dev/qpnp_led/include/qpnp_led.h b/dev/qpnp_led/include/qpnp_led.h
new file mode 100644
index 0000000..834b29d
--- /dev/null
+++ b/dev/qpnp_led/include/qpnp_led.h
@@ -0,0 +1,72 @@
+/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of The Linux Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <reg.h>
+#include <board.h>
+
+#define PERPH_SUBTYPE(base) (base + 0x05)
+#define RGB_LED_PERPH_TYPE(base) (base + 0x04)
+#define RGB_LED_SRC_SEL(base) (base + 0x45)
+#define RGB_LED_EN_CTL(base) (base + 0x46)
+#define RGB_LED_ATC_CTL(base) (base + 0x47)
+#define LPG_PERPH_TYPE(base) (base + 0x04)
+#define LPG_PERPH_SUBTYPE(base) (base + 0x05)
+#define LPG_PATTERN_CONFIG(base) (base + 0x40)
+#define LPG_PWM_SIZE_CLK(base) (base + 0x41)
+#define LPG_PWM_FREQ_PREDIV_CLK(base) (base + 0x42)
+#define LPG_PWM_TYPE_CONFIG(base) (base + 0x43)
+#define PWM_VALUE_LSB(base) (base + 0x44)
+#define PWM_VALUE_MSB(base) (base + 0x45)
+#define LPG_ENABLE_CONTROL(base) (base + 0x46)
+#define PWM_SYNC(base) (base + 0x47)
+
+#define RGB_LED_ENABLE_BLUE 0x20
+#define RGB_LED_ENABLE_GREEN 0x40
+#define RGB_LED_ENABLE_RED 0x80
+#define RGB_LED_SOURCE_VPH_PWR 0x01
+#define RGB_LED_ENABLE_MASK 0xE0
+#define RGB_LED_SRC_MASK 0xfc
+#define PWM_6BIT_1KHZ_CLK 0x01
+#define PWM_FREQ 0x05
+#define RGB_LED_ENABLE_PWM 0xe4
+
+enum qpnp_led_op {
+ QPNP_LED_RED,
+ QPNP_LED_GREEN,
+ QPNP_LED_BLUE,
+};
+
+struct qpnp_led_data {
+ uint16_t base;
+ uint16_t lpg_base;
+ enum qpnp_led_op color_sel;
+};
+
+/* LED Initial Setup */
+void qpnp_led_init(enum qpnp_led_op color, uint16_t led_base_addr,
+ uint16_t lpg_base_addr);