[WIP] target/fw/sim: SIM Layer 1 driver

[osmocom-bb.git] / src / target / firmware / calypso / backlight.c

diff --git a/src/target/firmware/calypso/backlight.c b/src/target/firmware/calypso/backlight.c
index e2ff29c..a18dcb9 100644 (file)
--- a/src/target/firmware/calypso/backlight.c
+++ b/src/target/firmware/calypso/backlight.c
@@ -31,7 +31,7 @@
 
 enum pwl_reg {
        PWL_LEVEL       = 0,
-       PWL_CTRL        = 2,
+       PWL_CTRL        = 1,
 };
 
 #define ASCONF_PWL_ENA (1 << 4)
@@ -43,6 +43,7 @@ void bl_mode_pwl(int on)
        reg = readw(ASIC_CONF_REG);
 
        if (on) {
+               /* Enable pwl */
                writeb(0x01, PWL_REG(PWL_CTRL));
                /* Switch pin from LT to PWL */
                reg |= ASCONF_PWL_ENA;
@@ -51,6 +52,7 @@ void bl_mode_pwl(int on)
                /* Switch pin from PWL to LT */
                reg |= ~ASCONF_PWL_ENA;
                writew(reg, ASIC_CONF_REG);
+               /* Disable pwl */
                writeb(0x00, PWL_REG(PWL_CTRL));
        }
 }