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[media] cx23885: Cleanup MPEG encoder GPIO handling 

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
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12
drivers/media/video/cx23885/cx23885-417.c
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@ -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__);