From: Peter Rosin Date: Thu, 2 Aug 2018 10:25:19 +0100 Subject: drm/i2c: tda998x: split tda998x_encoder_dpms into enable/disable Git-commit: 2c6e758332a4fdf0d2b1c76adba10961afdabc8a Patch-mainline: v4.19-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 This fits better with the drm_bridge callbacks for when this driver becomes a drm_bridge. Suggested-by: Laurent Pinchart Signed-off-by: Peter Rosin [edited by rmk to just split the tda998x_encoder_dpms() function and restore the double-disable protection we originally had, preserving original behaviour.] Tested-by: Peter Rosin Signed-off-by: Russell King Acked-by: Petr Tesarik --- drivers/gpu/drm/i2c/tda998x_drv.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-) --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -1308,18 +1308,9 @@ static int tda998x_connector_init(struct /* DRM encoder functions */ -static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode) +static void tda998x_enable(struct tda998x_priv *priv) { - struct tda998x_priv *priv = enc_to_tda998x_priv(encoder); - bool on; - - /* we only care about on or off: */ - on = mode == DRM_MODE_DPMS_ON; - - if (on == priv->is_on) - return; - - if (on) { + if (!priv->is_on) { /* enable video ports, audio will be enabled later */ reg_write(priv, REG_ENA_VP_0, 0xff); reg_write(priv, REG_ENA_VP_1, 0xff); @@ -1330,7 +1321,12 @@ static void tda998x_encoder_dpms(struct reg_write(priv, REG_VIP_CNTRL_2, priv->vip_cntrl_2); priv->is_on = true; - } else { + } +} + +static void tda998x_disable(struct tda998x_priv *priv) +{ + if (priv->is_on) { /* disable video ports */ reg_write(priv, REG_ENA_VP_0, 0x00); reg_write(priv, REG_ENA_VP_1, 0x00); @@ -1340,6 +1336,23 @@ static void tda998x_encoder_dpms(struct } } +static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode) +{ + struct tda998x_priv *priv = enc_to_tda998x_priv(encoder); + bool on; + + /* we only care about on or off: */ + on = mode == DRM_MODE_DPMS_ON; + + if (on == priv->is_on) + return; + + if (on) + tda998x_enable(priv); + else + tda998x_disable(priv); +} + static void tda998x_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,