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drm/bridge: lt8912: Convert to drm_of_get_data_lanes_count_ep

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Convert driver to use this new helper to standardize
OF "data-lanes" parsing.

Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Adrien Grassein <adrien.grassein@gmail.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
To: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220524010522.528569-4-marex@denx.de
This commit is contained in:
Marek Vasut 2022-05-24 03:05:15 +02:00
parent 4af48f1d1d
commit 1db4b52648
1 changed files with 2 additions and 7 deletions
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9
drivers/gpu/drm/bridge/lontium-lt8912b.c
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@ -607,7 +607,6 @@ static int lt8912_parse_dt(struct lt8912 *lt)
int ret;
int data_lanes;
struct device_node *port_node;
struct device_node *endpoint;
gp_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(gp_reset)) {
@ -618,16 +617,12 @@ static int lt8912_parse_dt(struct lt8912 *lt)
}
lt->gp_reset = gp_reset;
endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
if (!endpoint)
return -ENODEV;
data_lanes = of_property_count_u32_elems(endpoint, "data-lanes");
of_node_put(endpoint);
data_lanes = drm_of_get_data_lanes_count_ep(dev->of_node, 0, -1, 1, 4);
if (data_lanes < 0) {
dev_err(lt->dev, "%s: Bad data-lanes property\n", __func__);
return data_lanes;
}
lt->data_lanes = data_lanes;
lt->host_node = of_graph_get_remote_node(dev->of_node, 0, -1);