Update this driver to support a live device tree.
Signed-off-by: Simon Glass sjg@chromium.org Acked-by: Anatolij Gustschin agust@denx.de ---
Changes in v3: None Changes in v2: None
drivers/video/pwm_backlight.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/video/pwm_backlight.c b/drivers/video/pwm_backlight.c index 3697f4905c..fbd7bf7838 100644 --- a/drivers/video/pwm_backlight.c +++ b/drivers/video/pwm_backlight.c @@ -28,11 +28,13 @@ struct pwm_backlight_priv { static int pwm_backlight_enable(struct udevice *dev) { struct pwm_backlight_priv *priv = dev_get_priv(dev); + struct dm_regulator_uclass_platdata *plat; uint duty_cycle; int ret;
- debug("%s: Enable '%s', regulator '%s'\n", __func__, dev->name, - priv->reg->name); + plat = dev_get_uclass_platdata(priv->reg); + debug("%s: Enable '%s', regulator '%s'/'%s'\n", __func__, dev->name, + priv->reg->name, plat->name); ret = regulator_set_enable(priv->reg, true); if (ret) { debug("%s: Cannot enable regulator for PWM '%s'\n", __func__, @@ -59,12 +61,11 @@ static int pwm_backlight_enable(struct udevice *dev) static int pwm_backlight_ofdata_to_platdata(struct udevice *dev) { struct pwm_backlight_priv *priv = dev_get_priv(dev); - struct fdtdec_phandle_args args; - const void *blob = gd->fdt_blob; - int node = dev_of_offset(dev); + struct ofnode_phandle_args args; int index, ret, count, len; const u32 *cell;
+ debug("%s: start\n", __func__); ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev, "power-supply", &priv->reg); if (ret) { @@ -79,14 +80,14 @@ static int pwm_backlight_ofdata_to_platdata(struct udevice *dev) if (ret != -ENOENT) return ret; } - ret = fdtdec_parse_phandle_with_args(blob, node, "pwms", "#pwm-cells", - 0, 0, &args); + ret = dev_read_phandle_with_args(dev, "pwms", "#pwm-cells", 0, 0, + &args); if (ret) { debug("%s: Cannot get PWM phandle: ret=%d\n", __func__, ret); return ret; }
- ret = uclass_get_device_by_of_offset(UCLASS_PWM, args.node, &priv->pwm); + ret = uclass_get_device_by_ofnode(UCLASS_PWM, args.node, &priv->pwm); if (ret) { debug("%s: Cannot get PWM: ret=%d\n", __func__, ret); return ret; @@ -94,8 +95,8 @@ static int pwm_backlight_ofdata_to_platdata(struct udevice *dev) priv->channel = args.args[0]; priv->period_ns = args.args[1];
- index = fdtdec_get_int(blob, node, "default-brightness-level", 255); - cell = fdt_getprop(blob, node, "brightness-levels", &len); + index = dev_read_u32_default(dev, "default-brightness-level", 255); + cell = dev_read_prop(dev, "brightness-levels", &len); count = len / sizeof(u32); if (cell && count > index) { priv->default_level = fdt32_to_cpu(cell[index]); @@ -104,6 +105,7 @@ static int pwm_backlight_ofdata_to_platdata(struct udevice *dev) priv->default_level = index; priv->max_level = 255; } + debug("%s: done\n", __func__);
return 0;