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| author | Marek Vasut <marex@denx.de> | 2022-05-24 03:05:18 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2022-06-12 12:22:25 +0200 |
| commit | 56426faa1492289ff794620c4ed8c1847a420d0a (patch) | |
| tree | 33c2484c8bd5db9cc67861cbff06e301e79b22fd /drivers/gpu/drm/bridge/tc358775.c | |
| parent | d8609fd1e0742ba3ad2e51bba9dd489dd03d8599 (diff) | |
| download | linux-56426faa1492289ff794620c4ed8c1847a420d0a.tar.gz | |
drm/bridge: tc358775: Convert to drm_of_get_data_lanes_count_ep
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: 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/20220524010522.528569-7-marex@denx.de
Diffstat (limited to 'drivers/gpu/drm/bridge/tc358775.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358775.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc358775.c index 62a7ef352daa..5b1fb8e2f9a7 100644 --- a/drivers/gpu/drm/bridge/tc358775.c +++ b/drivers/gpu/drm/bridge/tc358775.c @@ -529,8 +529,7 @@ static int tc358775_parse_dt(struct device_node *np, struct tc_data *tc) struct device_node *endpoint; struct device_node *parent; struct device_node *remote; - struct property *prop; - int len = 0; + int dsi_lanes; /* * To get the data-lanes of dsi, we need to access the dsi0_out of port1 @@ -544,25 +543,15 @@ static int tc358775_parse_dt(struct device_node *np, struct tc_data *tc) of_node_put(endpoint); if (parent) { /* dsi0 port 1 */ - endpoint = of_graph_get_endpoint_by_regs(parent, 1, -1); + dsi_lanes = drm_of_get_data_lanes_count_ep(parent, 1, -1, 1, 4); of_node_put(parent); - if (endpoint) { - prop = of_find_property(endpoint, "data-lanes", - &len); - of_node_put(endpoint); - if (!prop) { - dev_err(tc->dev, - "failed to find data lane\n"); - return -EPROBE_DEFER; - } - } } } - tc->num_dsi_lanes = len / sizeof(u32); + if (dsi_lanes < 0) + return dsi_lanes; - if (tc->num_dsi_lanes < 1 || tc->num_dsi_lanes > 4) - return -EINVAL; + tc->num_dsi_lanes = dsi_lanes; tc->host_node = of_graph_get_remote_node(np, 0, 0); if (!tc->host_node) |