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Subject[PATCH 2/6] drm/i2c: tda998x: split tda998x_encoder_dpms into enable/disable
Date
From: Peter Rosin <peda@axentia.se>

This fits better with the drm_bridge callbacks for when this
driver becomes a drm_bridge.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
[edited by rmk to just split the tda998x_encoder_dpms() function
and restore the double-disable protection we originally had,
preserving original behaviour.]
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 37 +++++++++++++++++++++++++------------
1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 4061e293e671..e9a038a7bb30 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -1299,18 +1299,9 @@ static int tda998x_connector_init(struct tda998x_priv *priv,

/* 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);
@@ -1321,7 +1312,12 @@ static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
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);
@@ -1331,6 +1327,23 @@ static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
}
}

+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,
--
2.7.4
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