summaryrefslogtreecommitdiff
path: root/firmware/target/mips/ingenic_jz47xx/onda_vx747
diff options
context:
space:
mode:
Diffstat (limited to 'firmware/target/mips/ingenic_jz47xx/onda_vx747')
-rw-r--r--firmware/target/mips/ingenic_jz47xx/onda_vx747/backlight-onda_vx7X7.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx747/backlight-onda_vx7X7.c b/firmware/target/mips/ingenic_jz47xx/onda_vx747/backlight-onda_vx7X7.c
index f2ef3f7dc1..e59f1812c1 100644
--- a/firmware/target/mips/ingenic_jz47xx/onda_vx747/backlight-onda_vx7X7.c
+++ b/firmware/target/mips/ingenic_jz47xx/onda_vx747/backlight-onda_vx7X7.c
@@ -35,9 +35,6 @@
35static int old_val; 35static int old_val;
36static void set_backlight(int val) 36static void set_backlight(int val)
37{ 37{
38 if(val == old_val)
39 return;
40
41 /* The pulse repetition frequency should be greater than 100Hz so 38 /* The pulse repetition frequency should be greater than 100Hz so
42 the flickering is not perceptible to the human eye but 39 the flickering is not perceptible to the human eye but
43 not greater than about 1kHz. */ 40 not greater than about 1kHz. */
@@ -62,15 +59,12 @@ static void set_backlight(int val)
62static void set_backlight_on(void) 59static void set_backlight_on(void)
63{ 60{
64 set_backlight(old_val); 61 set_backlight(old_val);
65
66 __tcu_enable_pwm_output(BACKLIGHT_PWM);
67 __tcu_start_counter(BACKLIGHT_PWM);
68} 62}
69 63
70static void set_backlight_off(void) 64static void set_backlight_off(void)
71{ 65{
72 __tcu_stop_counter(BACKLIGHT_PWM);
73 __tcu_disable_pwm_output(BACKLIGHT_PWM); 66 __tcu_disable_pwm_output(BACKLIGHT_PWM);
67 __tcu_stop_counter(BACKLIGHT_PWM);
74} 68}
75 69
76bool _backlight_init(void) 70bool _backlight_init(void)
@@ -81,7 +75,7 @@ bool _backlight_init(void)
81 __tcu_stop_counter(BACKLIGHT_PWM); 75 __tcu_stop_counter(BACKLIGHT_PWM);
82 __tcu_init_pwm_output_low(BACKLIGHT_PWM); 76 __tcu_init_pwm_output_low(BACKLIGHT_PWM);
83 __tcu_set_pwm_output_shutdown_graceful(BACKLIGHT_PWM); 77 __tcu_set_pwm_output_shutdown_graceful(BACKLIGHT_PWM);
84 __tcu_enable_pwm_output(BACKLIGHT_PWM); 78 __tcu_disable_pwm_output(BACKLIGHT_PWM);
85 79
86 __tcu_select_rtcclk(BACKLIGHT_PWM); /* 32.768 kHz */ 80 __tcu_select_rtcclk(BACKLIGHT_PWM); /* 32.768 kHz */
87 __tcu_select_clk_div1(BACKLIGHT_PWM); 81 __tcu_select_clk_div1(BACKLIGHT_PWM);
@@ -90,7 +84,6 @@ bool _backlight_init(void)
90 __tcu_mask_full_match_irq(BACKLIGHT_PWM); 84 __tcu_mask_full_match_irq(BACKLIGHT_PWM);
91 85
92 old_val = MAX_BRIGHTNESS_SETTING; 86 old_val = MAX_BRIGHTNESS_SETTING;
93 set_backlight_on();
94 87
95 return true; 88 return true;
96} 89}