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authorTimur Tabi <timur@freescale.com>2012-10-16 17:33:44 -0500
committerTimur Tabi <timur@freescale.com>2012-11-26 13:41:19 -0600
commite95c17e9caff4b106cc95b761f3e07964a5a0d9f (patch)
tree64ab7ac3f0382de82b32e8a17176b1c677355f99 /drivers/video/fsl-diu-fb.c
parent2867173572d5ca5084e8836c8a1d0cafa95b729b (diff)
downloadop-kernel-dev-e95c17e9caff4b106cc95b761f3e07964a5a0d9f.zip
op-kernel-dev-e95c17e9caff4b106cc95b761f3e07964a5a0d9f.tar.gz
drivers/video: fsl-diu-fb: add support for set_gamma ioctls
The MPC5121 BSP comes with a gamma_set utility that initializes the gamma table via an ioctl. Unfortunately, the ioctl number that utility uses is defined improperly, but we can still support it. Signed-off-by: Timur Tabi <timur@freescale.com>
Diffstat (limited to 'drivers/video/fsl-diu-fb.c')
-rw-r--r--drivers/video/fsl-diu-fb.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 5b12e17..9c40547 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -1181,6 +1181,23 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
ad->ckmin_b = ck.blue_min;
}
break;
+#ifdef CONFIG_PPC_MPC512x
+ case MFB_SET_GAMMA: {
+ struct fsl_diu_data *data = mfbi->parent;
+
+ if (copy_from_user(data->gamma, buf, sizeof(data->gamma)))
+ return -EFAULT;
+ setbits32(&data->diu_reg->gamma, 0); /* Force table reload */
+ break;
+ }
+ case MFB_GET_GAMMA: {
+ struct fsl_diu_data *data = mfbi->parent;
+
+ if (copy_to_user(buf, data->gamma, sizeof(data->gamma)))
+ return -EFAULT;
+ break;
+ }
+#endif
default:
dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd);
return -ENOIOCTLCMD;
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