The clock framework makes it simple to deal with an optional clock. You can call clk_get_optional() and if the clock isn't specified it'll just return NULL without complaint. It's valid to pass NULL to enable/disable/prepare/unprepare. Let's make use of this to simplify things a tiny bit.
Signed-off-by: Douglas Anderson dianders@chromium.org Reviewed-by: Robert Foss robert.foss@linaro.org Reviewed-by: Bjorn Andersson bjorn.andersson@linaro.org Reviewed-by: Stephen Boyd swboyd@chromium.org Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Reviewed-by: Andrzej Hajda a.hajda@samsung.com ---
(no changes since v2)
Changes in v2: - Removed 2nd paragraph in commit message.
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 88df4dd0f39d..96fe8f2c0ea9 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -1275,14 +1275,9 @@ static int ti_sn_bridge_probe(struct i2c_client *client, return ret; }
- pdata->refclk = devm_clk_get(pdata->dev, "refclk"); - if (IS_ERR(pdata->refclk)) { - ret = PTR_ERR(pdata->refclk); - if (ret == -EPROBE_DEFER) - return ret; - DRM_DEBUG_KMS("refclk not found\n"); - pdata->refclk = NULL; - } + pdata->refclk = devm_clk_get_optional(pdata->dev, "refclk"); + if (IS_ERR(pdata->refclk)) + return PTR_ERR(pdata->refclk);
ret = ti_sn_bridge_parse_dsi_host(pdata); if (ret)