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-rw-r--r--driver/led/oz554.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/driver/led/oz554.c b/driver/led/oz554.c
deleted file mode 100644
index 504ac55e90..0000000000
--- a/driver/led/oz554.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/* Copyright 2018 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * O2 Micro OZ554 LED driver.
- */
-
-#include "console.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "i2c.h"
-#include "oz554.h"
-#include "task.h"
-#include "timer.h"
-
-#define CPRINTS(format, args...) cprints(CC_I2C, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_I2C, format, ## args)
-
-#define I2C_ADDR_OZ554_FLAGS 0x31
-
-struct oz554_value {
- uint8_t offset;
- uint8_t data;
-};
-
-/*
- * OZ554ALN asserts the interrupt when it's ready for writing settings, which
- * are cleared when it's turned off. We enable the interrupt on HOOK_INIT and
- * keep it enabled in S0/S3/S5.
- *
- * It's assumed the device doesn't have a lid and OZ554ALN is powered only in
- * S0. For clamshell devices, different interrupt & power control scheme may be
- * needed.
- */
-
-/* This ordering is suggested by vendor. */
-static struct oz554_value oz554_conf[] = {
- /*
- * Reigster 0x01: Operation frequency control
- * Frequency selection: 300(KHz)
- * Short circuit protection: 8(V)
- */
- {.offset = 1, .data = 0x43},
- /*
- * Reigster 0x02: LED current amplitude control
- * ISET Resistor: 10.2(Kohm)
- * Maximum LED current: 1636/10.2 = 160.4(mA)
- * Setting LED current: 65(mA)
- */
- {.offset = 2, .data = 0x65},
- /*
- * Reigster 0x03: LED backlight Status
- * Status function: Read only
- */
- {.offset = 3, .data = 0x00},
- /*
- * Reigster 0x04: LED current control with SMBus
- * SMBus PWM function: None Use
- */
- {.offset = 4, .data = 0x00},
- /*
- * Reigster 0x05: OVP, OCP control
- * Over Current Protection: 0.5(V)
- * Panel LED Voltage(Max): 47.8(V)
- * OVP setting: 54(V)
- */
- {.offset = 5, .data = 0x97},
- /*
- * Reigster 0x00: Dimming mode and string ON/OFF control
- * String Selection: 4(Number)
- * Interface Selection: 1
- * Brightness mode: 3
- */
- {.offset = 0, .data = 0xF2},
-};
-static const int oz554_conf_size = ARRAY_SIZE(oz554_conf);
-
-static void set_oz554_reg(void)
-{
- int i;
-
- for (i = 0; i < oz554_conf_size; ++i) {
- int rv = i2c_write8(I2C_PORT_BACKLIGHT,
- I2C_ADDR_OZ554_FLAGS,
- oz554_conf[i].offset, oz554_conf[i].data);
- if (rv) {
- CPRINTS("Write OZ554 register %d failed rv=%d" , i, rv);
- return;
- }
- }
- CPRINTS("Wrote OZ554 settings");
-}
-
-static void backlight_enable_deferred(void)
-{
- if (gpio_get_level(GPIO_PANEL_BACKLIGHT_EN))
- set_oz554_reg();
-}
-DECLARE_DEFERRED(backlight_enable_deferred);
-
-void backlight_enable_interrupt(enum gpio_signal signal)
-{
- /*
- * 1. Spec says backlight should be turned on after 500ms
- * after eDP signals are ready.
- *
- * 2. There's no way to get exact eDP ready time, therefore,
- * give one second delay.
- *
- * power up __/----------------
- * eDP ______/------------
- * backlight _____________/-----
- * |- t1 -| : >=500 ms
- * |- t2 -| : 1 second is enough
- */
- hook_call_deferred(&backlight_enable_deferred_data,
- OZ554_POWER_BACKLIGHT_DELAY);
-}
-
-int oz554_set_config(int offset, int data)
-{
- int i;
- for (i = 0; i < oz554_conf_size; i++) {
- if (oz554_conf[i].offset == offset)
- break;
- }
- if (i >= oz554_conf_size) {
- /* Matching offset not found */
- CPRINTS("oz554: offset %d not found", i);
- return EC_ERROR_INVAL;
- }
- oz554_conf[i].data = data;
- return EC_SUCCESS;
-}
-
-static void init_oz554(void)
-{
- oz554_board_init();
-
- gpio_enable_interrupt(GPIO_PANEL_BACKLIGHT_EN);
-}
-DECLARE_HOOK(HOOK_INIT, init_oz554, HOOK_PRIO_DEFAULT);
-
-
-__overridable void oz554_board_init(void)
-{
-}