ARM: dts: qcom: adapt to LP855X bindings changes

Change underscores in ROM node names to dashes, and remove deprecated
pwm-period property.
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230519180728.2281-4-aweber.kernel@gmail.com

arch/arm/boot/dts/qcom-apq8026-samsung-matisse-wifi.dts

@@ -99,7 +99,6 @@ backlight@2c {
 
 			dev-ctrl = /bits/ 8 <0x80>;
 			init-brt = /bits/ 8 <0x3f>;
-			pwm-period = <100000>;
 
 			pwms = <&backlight_pwm 0 100000>;
 			pwm-names = "lp8556";

arch/arm/boot/dts/qcom-msm8974pro-sony-xperia-shinano-castor.dts

@@ -150,47 +150,48 @@ lp8566_wled: backlight@2c {
 		bl-name = "backlight";
 		dev-ctrl = /bits/ 8 <0x05>;
 		init-brt = /bits/ 8 <0x3f>;
-		rom_a0h {
+
+		rom-a0h {
 			rom-addr = /bits/ 8 <0xa0>;
 			rom-val = /bits/ 8 <0xff>;
 		};
-		rom_a1h {
+		rom-a1h {
 			rom-addr = /bits/ 8 <0xa1>;
 			rom-val = /bits/ 8 <0x3f>;
 		};
-		rom_a2h {
+		rom-a2h {
 			rom-addr = /bits/ 8 <0xa2>;
 			rom-val = /bits/ 8 <0x20>;
 		};
-		rom_a3h {
+		rom-a3h {
 			rom-addr = /bits/ 8 <0xa3>;
 			rom-val = /bits/ 8 <0x5e>;
 		};
-		rom_a4h {
+		rom-a4h {
 			rom-addr = /bits/ 8 <0xa4>;
 			rom-val = /bits/ 8 <0x02>;
 		};
-		rom_a5h {
+		rom-a5h {
 			rom-addr = /bits/ 8 <0xa5>;
 			rom-val = /bits/ 8 <0x04>;
 		};
-		rom_a6h {
+		rom-a6h {
 			rom-addr = /bits/ 8 <0xa6>;
 			rom-val = /bits/ 8 <0x80>;
 		};
-		rom_a7h {
+		rom-a7h {
 			rom-addr = /bits/ 8 <0xa7>;
 			rom-val = /bits/ 8 <0xf7>;
 		};
-		rom_a9h {
+		rom-a9h {
 			rom-addr = /bits/ 8 <0xa9>;
 			rom-val = /bits/ 8 <0x80>;
 		};
-		rom_aah {
+		rom-aah {
 			rom-addr = /bits/ 8 <0xaa>;
 			rom-val = /bits/ 8 <0x0f>;
 		};
-		rom_aeh {
+		rom-aeh {
 			rom-addr = /bits/ 8 <0xae>;
 			rom-val = /bits/ 8 <0x0f>;
 		};