On some devices the +5V Power pin of the HDMI connector and/or the ESD protection logic is powered on by a separate regulator. Instead of declaring this regulator as always-on, make hdmi-connector support the additional hdmi-pwr supply. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- drivers/gpu/drm/bridge/display-connector.c | 55 ++++++++++++---------- 1 file changed, 29 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/bridge/display-connector.c b/drivers/gpu/drm/bridge/display-connector.c index 1d37e57242dd..d6a9aa589d17 100644 --- a/drivers/gpu/drm/bridge/display-connector.c +++ b/drivers/gpu/drm/bridge/display-connector.c @@ -191,6 +191,18 @@ static irqreturn_t display_connector_hpd_irq(int irq, void *arg) return IRQ_HANDLED; } +static int display_connector_get_supply(struct platform_device *pdev, + struct display_connector *conn, + const char *name) +{ + conn->supply = devm_regulator_get_optional(&pdev->dev, "dp-pwr"); + + if (conn->supply == ERR_PTR(-ENODEV)) + conn->supply = NULL; + + return PTR_ERR_OR_ZERO(conn->supply); +} + static int display_connector_probe(struct platform_device *pdev) { struct display_connector *conn; @@ -319,36 +331,15 @@ static int display_connector_probe(struct platform_device *pdev) if (type == DRM_MODE_CONNECTOR_DisplayPort) { int ret; - conn->supply = devm_regulator_get_optional(&pdev->dev, "dp-pwr"); - - if (IS_ERR(conn->supply)) { - ret = PTR_ERR(conn->supply); - - switch (ret) { - case -ENODEV: - conn->supply = NULL; - break; - - case -EPROBE_DEFER: - return -EPROBE_DEFER; - - default: - dev_err(&pdev->dev, "failed to get DP PWR regulator: %d\n", ret); - return ret; - } - } - - if (conn->supply) { - ret = regulator_enable(conn->supply); - if (ret) { - dev_err(&pdev->dev, "failed to enable DP PWR regulator: %d\n", ret); - return ret; - } - } + ret = display_connector_get_supply(pdev, conn, "dp-pwr"); + if (ret < 0) + return dev_err_probe(&pdev->dev, ret, "failed to get DP PWR regulator\n"); } /* enable DDC */ if (type == DRM_MODE_CONNECTOR_HDMIA) { + int ret; + conn->ddc_en = devm_gpiod_get_optional(&pdev->dev, "ddc-en", GPIOD_OUT_HIGH); @@ -356,6 +347,18 @@ static int display_connector_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Couldn't get ddc-en gpio\n"); return PTR_ERR(conn->ddc_en); } + + ret = display_connector_get_supply(pdev, conn, "hdmi-pwr"); + if (ret < 0) + return dev_err_probe(&pdev->dev, ret, "failed to get HDMI +5V Power regulator\n"); + } + + if (conn->supply) { + ret = regulator_enable(conn->supply); + if (ret) { + dev_err(&pdev->dev, "failed to enable DP PWR regulator: %d\n", ret); + return ret; + } } conn->bridge.funcs = &display_connector_bridge_funcs; -- 2.39.2