korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-27 04:54:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

[media] cx23885: Cleanup MPEG encoder GPIO handling

Browse Source 
During initialization the prior GPIO's were not being preserved
and restore correctly. Small cleanups to configure the GPIO's
for the HVR1700, HVR1800 and HVR1850.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Steven Toth 2012-01-04 10:52:26 -03:00 committed by Mauro Carvalho Chehab
parent 4c3764d150
commit 182d29f307
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/media/video/cx23885/cx23885-417.c
View File

@ -900,6 +900,7 @@ static int cx23885_load_firmware(struct cx23885_dev *dev)
int i, retval = 0;
u32 value = 0;
u32 gpio_output = 0;
u32 gpio_value;
u32 checksum = 0;
u32 *dataptr;
@ -907,7 +908,7 @@ static int cx23885_load_firmware(struct cx23885_dev *dev)
/* Save GPIO settings before reset of APU */
retval |= mc417_memory_read(dev, 0x9020, &gpio_output);
retval |= mc417_memory_read(dev, 0x900C, &value);
retval |= mc417_memory_read(dev, 0x900C, &gpio_value);
retval = mc417_register_write(dev,
IVTV_REG_VPU, 0xFFFFFFED);
@ -991,11 +992,18 @@ static int cx23885_load_firmware(struct cx23885_dev *dev)
/* F/W power up disturbs the GPIOs, restore state */
retval |= mc417_register_write(dev, 0x9020, gpio_output);
retval |= mc417_register_write(dev, 0x900C, value);
retval |= mc417_register_write(dev, 0x900C, gpio_value);
retval |= mc417_register_read(dev, IVTV_REG_VPU, &value);
retval |= mc417_register_write(dev, IVTV_REG_VPU, value & 0xFFFFFFE8);
/* Hardcoded GPIO's here */
retval |= mc417_register_write(dev, 0x9020, 0x4000);
retval |= mc417_register_write(dev, 0x900C, 0x4000);
mc417_register_read(dev, 0x9020, &gpio_output);
mc417_register_read(dev, 0x900C, &gpio_value);
if (retval < 0)
printk(KERN_ERR "%s: Error with mc417_register_write\n",
__func__);