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| author |   Philipp Zabel <p.zabel@pengutronix.de> | 2014-04-14 23:53:23 +0200 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-26 11:24:20 +0100 |
| commit | 1e6d486be4ea3f17c99c933703f53a6d566292a9 (patch) | |
| tree | d3319f261af31481c5af61483763c0cd2c9c38b9 /drivers/staging/imx-drm | |
| parent | imx-drm: ipuv3-crtc: change display enable/disable order (diff) | |
| download | linux-dev-1e6d486be4ea3f17c99c933703f53a6d566292a9.tar.xz linux-dev-1e6d486be4ea3f17c99c933703f53a6d566292a9.zip | |
imx-drm: ipu-dc: disable DC module when not in use
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/staging/imx-drm')
| -rw-r--r-- | drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h | 2 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/ipu-v3/ipu-dc.c | 14 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/ipuv3-crtc.c | 8 |
3 files changed, 20 insertions, 4 deletions
diff --git a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h index 8678ad18a3ef..c2c6fab05eaa 100644 --- a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h +++ b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h @@ -115,8 +115,10 @@ struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel); void ipu_dc_put(struct ipu_dc *dc); int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced, u32 pixel_fmt, u32 width); +void ipu_dc_enable(struct ipu_soc *ipu); void ipu_dc_enable_channel(struct ipu_dc *dc); void ipu_dc_disable_channel(struct ipu_dc *dc); +void ipu_dc_disable(struct ipu_soc *ipu); /* * IPU Display Interface (di) functions diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c index 280e494aee81..93b2709f81e1 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c @@ -224,12 +224,16 @@ int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced, writel(0x0, dc->base + DC_WR_CH_ADDR); writel(width, priv->dc_reg + DC_DISP_CONF2(dc->di)); - ipu_module_enable(priv->ipu, IPU_CONF_DC_EN); - return 0; } EXPORT_SYMBOL_GPL(ipu_dc_init_sync); +void ipu_dc_enable(struct ipu_soc *ipu) +{ + ipu_module_enable(ipu, IPU_CONF_DC_EN); +} +EXPORT_SYMBOL_GPL(ipu_dc_enable); + void ipu_dc_enable_channel(struct ipu_dc *dc) { int di; @@ -286,6 +290,12 @@ void ipu_dc_disable_channel(struct ipu_dc *dc) } EXPORT_SYMBOL_GPL(ipu_dc_disable_channel); +void ipu_dc_disable(struct ipu_soc *ipu) +{ + ipu_module_disable(ipu, IPU_CONF_DC_EN); +} +EXPORT_SYMBOL_GPL(ipu_dc_disable); + static void ipu_dc_map_config(struct ipu_dc_priv *priv, enum ipu_dc_map map, int byte_num, int offset, int mask) { diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c index ab667a191a36..47bec5e17358 100644 --- a/drivers/staging/imx-drm/ipuv3-crtc.c +++ b/drivers/staging/imx-drm/ipuv3-crtc.c @@ -60,10 +60,12 @@ struct ipu_crtc { static void ipu_fb_enable(struct ipu_crtc *ipu_crtc) { + struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); + if (ipu_crtc->enabled) return; - /* TODO: Enable DC module here, right now it is never disabled */ + ipu_dc_enable(ipu); ipu_plane_enable(ipu_crtc->plane[0]); /* Start DC channel and DI after IDMAC */ ipu_dc_enable_channel(ipu_crtc->dc); @@ -74,6 +76,8 @@ static void ipu_fb_enable(struct ipu_crtc *ipu_crtc) static void ipu_fb_disable(struct ipu_crtc *ipu_crtc) { + struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); + if (!ipu_crtc->enabled) return; @@ -81,7 +85,7 @@ static void ipu_fb_disable(struct ipu_crtc *ipu_crtc) ipu_dc_disable_channel(ipu_crtc->dc); ipu_di_disable(ipu_crtc->di); ipu_plane_disable(ipu_crtc->plane[0]); - /* TODO: Disable DC module here */ + ipu_dc_disable(ipu); ipu_crtc->enabled = 0; } |