the panel which jaq use require the pwm duty cycle larger than 3%,
when the backlight status from power off to power on, otherwise the
backlight will flush, so we modify the second brightness-level to 8,
and when the backlight from power off to power on the pwm duty cycle
will larger than 3%.
Signed-off-by: Caesar Wang <[email protected]>
---
Changes in v1: None
arch/arm/boot/dts/rk3288-veyron-jaq.dts | 37 +++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/arch/arm/boot/dts/rk3288-veyron-jaq.dts b/arch/arm/boot/dts/rk3288-veyron-jaq.dts
index c2f52cf..991b717 100644
--- a/arch/arm/boot/dts/rk3288-veyron-jaq.dts
+++ b/arch/arm/boot/dts/rk3288-veyron-jaq.dts
@@ -88,6 +88,43 @@
};
};
+&backlight {
+ /* Jaq panel PWM must be >= 3%, so start non-zero brightness at 8 */
+ brightness-levels = <
+ 0
+ 8 9 10 11 12 13 14 15
+ 16 17 18 19 20 21 22 23
+ 24 25 26 27 28 29 30 31
+ 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47
+ 48 49 50 51 52 53 54 55
+ 56 57 58 59 60 61 62 63
+ 64 65 66 67 68 69 70 71
+ 72 73 74 75 76 77 78 79
+ 80 81 82 83 84 85 86 87
+ 88 89 90 91 92 93 94 95
+ 96 97 98 99 100 101 102 103
+ 104 105 106 107 108 109 110 111
+ 112 113 114 115 116 117 118 119
+ 120 121 122 123 124 125 126 127
+ 128 129 130 131 132 133 134 135
+ 136 137 138 139 140 141 142 143
+ 144 145 146 147 148 149 150 151
+ 152 153 154 155 156 157 158 159
+ 160 161 162 163 164 165 166 167
+ 168 169 170 171 172 173 174 175
+ 176 177 178 179 180 181 182 183
+ 184 185 186 187 188 189 190 191
+ 192 193 194 195 196 197 198 199
+ 200 201 202 203 204 205 206 207
+ 208 209 210 211 212 213 214 215
+ 216 217 218 219 220 221 222 223
+ 224 225 226 227 228 229 230 231
+ 232 233 234 235 236 237 238 239
+ 240 241 242 243 244 245 246 247
+ 248 249 250 251 252 253 254 255>;
+};
+
&rk808 {
pinctrl-names = "default";
pinctrl-0 = <&pmic_int_l &dvs_1 &dvs_2>;
--
1.9.1
Add a fixed regulator and reference it for the backlight and panle
power supply on rk3288 jaq board.
Signed-off-by: Caesar Wang <[email protected]>
---
Changes in v1:
- Add this series patches are working with ykk'EDP patches
on rk3288-jaq board.
arch/arm/boot/dts/rk3288-veyron-jaq.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/rk3288-veyron-jaq.dts b/arch/arm/boot/dts/rk3288-veyron-jaq.dts
index 991b717..9367a4c 100644
--- a/arch/arm/boot/dts/rk3288-veyron-jaq.dts
+++ b/arch/arm/boot/dts/rk3288-veyron-jaq.dts
@@ -123,6 +123,11 @@
232 233 234 235 236 237 238 239
240 241 242 243 244 245 246 247
248 249 250 251 252 253 254 255>;
+ power-supply = <&backlight_regulator>;
+};
+
+&panel {
+ power-supply = <&panel_regulator>;
};
&rk808 {
--
1.9.1
Hi Caesar,
Am Montag, 7. Dezember 2015, 21:11:08 schrieb Caesar Wang:
> the panel which jaq use require the pwm duty cycle larger than 3%,
> when the backlight status from power off to power on, otherwise the
> backlight will flush, so we modify the second brightness-level to 8,
> and when the backlight from power off to power on the pwm duty cycle
> will larger than 3%.
>
> Signed-off-by: Caesar Wang <[email protected]>
I've merged the two patches and included them in my series for the veyron edp
devicetree changes [0].
Heiko
[0] https://github.com/mmind/linux-rockchip/commit/45e3abed0a86c7ee5cea0b35492b65890b928175
Heiko,
在 2015年12月15日 05:46, Heiko Stübner 写道:
> Hi Caesar,
>
> Am Montag, 7. Dezember 2015, 21:11:08 schrieb Caesar Wang:
>> the panel which jaq use require the pwm duty cycle larger than 3%,
>> when the backlight status from power off to power on, otherwise the
>> backlight will flush, so we modify the second brightness-level to 8,
>> and when the backlight from power off to power on the pwm duty cycle
>> will larger than 3%.
>>
>> Signed-off-by: Caesar Wang <[email protected]>
> I've merged the two patches and included them in my series for the veyron edp
> devicetree changes [0].
>
>
> Heiko
>
> [0] https://github.com/mmind/linux-rockchip/commit/45e3abed0a86c7ee5cea0b35492b65890b928175
Yep, that's more resonable since we need depend on this edp device node.
https://github.com/rockchip-linux/kernel/commit/6d1491faf1e5eee98dfcd9bb1ba1b7f866cd51ab
>
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