media: fsl-viu: mark static functions as such
There are several functions that are used only inside the driver. Stop exposing that to global symbolspace. Get rid of the following gcc warnings: drivers/media/platform/fsl-viu.c:240:17: warning: no previous prototype for ‘format_by_fourcc’ [-Wmissing-prototypes] struct viu_fmt *format_by_fourcc(int fourcc) ^~~~~~~~~~~~~~~~ drivers/media/platform/fsl-viu.c:253:6: warning: no previous prototype for ‘viu_start_dma’ [-Wmissing-prototypes] void viu_start_dma(struct viu_dev *dev) ^~~~~~~~~~~~~ drivers/media/platform/fsl-viu.c:262:6: warning: no previous prototype for ‘viu_stop_dma’ [-Wmissing-prototypes] void viu_stop_dma(struct viu_dev *dev) ^~~~~~~~~~~~ drivers/media/platform/fsl-viu.c:807:5: warning: no previous prototype for ‘vidioc_g_fbuf’ [-Wmissing-prototypes] int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg) ^~~~~~~~~~~~~ drivers/media/platform/fsl-viu.c:818:5: warning: no previous prototype for ‘vidioc_s_fbuf’ [-Wmissing-prototypes] int vidioc_s_fbuf(struct file *file, void *priv, const struct v4l2_framebuffer *arg) ^~~~~~~~~~~~~ drivers/media/platform/fsl-viu.c: In function ‘viu_open’: drivers/media/platform/fsl-viu.c:1170:6: warning: variable ‘status_cfg’ set but not used [-Wunused-but-set-variable] u32 status_cfg; ^~~~~~~~~~ drivers/media/platform/fsl-viu.c: At top level: drivers/media/platform/fsl-viu.c:1304:6: warning: no previous prototype for ‘viu_reset’ [-Wmissing-prototypes] void viu_reset(struct viu_reg *reg) ^~~~~~~~~ Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -229,7 +229,7 @@ enum status_config {
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static irqreturn_t viu_intr(int irq, void *dev_id);
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struct viu_fmt *format_by_fourcc(int fourcc)
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static struct viu_fmt *format_by_fourcc(int fourcc)
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{
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int i;
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@ -242,7 +242,7 @@ struct viu_fmt *format_by_fourcc(int fourcc)
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return NULL;
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}
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void viu_start_dma(struct viu_dev *dev)
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static void viu_start_dma(struct viu_dev *dev)
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{
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struct viu_reg *vr = dev->vr;
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@ -253,7 +253,7 @@ void viu_start_dma(struct viu_dev *dev)
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out_be32(&vr->status_cfg, INT_FIELD_EN);
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}
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void viu_stop_dma(struct viu_dev *dev)
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static void viu_stop_dma(struct viu_dev *dev)
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{
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struct viu_reg *vr = dev->vr;
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int cnt = 100;
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@ -802,7 +802,7 @@ static int vidioc_overlay(struct file *file, void *priv, unsigned int on)
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return 0;
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}
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int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
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static int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
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{
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struct viu_fh *fh = priv;
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struct viu_dev *dev = fh->dev;
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@ -813,7 +813,7 @@ int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
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return 0;
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}
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int vidioc_s_fbuf(struct file *file, void *priv, const struct v4l2_framebuffer *arg)
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static int vidioc_s_fbuf(struct file *file, void *priv, const struct v4l2_framebuffer *arg)
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{
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struct viu_fh *fh = priv;
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struct viu_dev *dev = fh->dev;
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@ -1305,7 +1305,7 @@ static int viu_release(struct file *file)
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return 0;
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}
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void viu_reset(struct viu_reg *reg)
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static void viu_reset(struct viu_reg *reg)
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{
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out_be32(®->status_cfg, 0);
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out_be32(®->luminance, 0x9512a254);
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