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gpu: ipu-v3: ipu-dmfc: Make function ipu_dmfc_init_channel() return void

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Since the function ipu_dmfc_init_channel() always returns zero, we may
change the return type to void to simplify the code.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Liu Ying 2016-03-14 16:10:09 +08:00 committed by Philipp Zabel
parent 32c26a56af
commit 2bbe32f739
3 changed files with 3 additions and 9 deletions
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6
drivers/gpu/drm/imx/ipuv3-plane.c
View File

@ -280,11 +280,7 @@ int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc,
}
}
ret = ipu_dmfc_init_channel(ipu_plane->dmfc, crtc_w);
if (ret) {
dev_err(dev, "initializing dmfc channel failed with %d\n", ret);
return ret;
}
ipu_dmfc_init_channel(ipu_plane->dmfc, crtc_w);
ret = ipu_dmfc_alloc_bandwidth(ipu_plane->dmfc,
calc_bandwidth(crtc_w, crtc_h,

4
drivers/gpu/ipu-v3/ipu-dmfc.c
View File

@ -350,7 +350,7 @@ out:
}
EXPORT_SYMBOL_GPL(ipu_dmfc_alloc_bandwidth);
int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
void ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
{
struct ipu_dmfc_priv *priv = dmfc->priv;
u32 dmfc_gen1;
@ -367,8 +367,6 @@ int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
writel(dmfc_gen1, priv->base + DMFC_GENERAL1);
mutex_unlock(&priv->mutex);
return 0;
}
EXPORT_SYMBOL_GPL(ipu_dmfc_init_channel);

2
include/video/imx-ipu-v3.h
View File

@ -237,7 +237,7 @@ void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc);
int ipu_dmfc_alloc_bandwidth(struct dmfc_channel *dmfc,
unsigned long bandwidth_mbs, int burstsize);
void ipu_dmfc_free_bandwidth(struct dmfc_channel *dmfc);
int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width);
void ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width);
struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipuv3_channel);
void ipu_dmfc_put(struct dmfc_channel *dmfc);