V4L/DVB (5690): Cafe_ccic: Properly power down the sensor

The proper method for powering down the sensor on OLPC systems has
changed somewhat; in particular, the sensor must be powered down
completely (rather than simply told to power down) or the associated
"camera active" LED will stay on.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/media/video/cafe_ccic-regs.h b/drivers/media/video/cafe_ccic-regs.h
index b2c22a0d6643..8e2a87cdc791 100644
--- a/drivers/media/video/cafe_ccic-regs.h
+++ b/drivers/media/video/cafe_ccic-regs.h
@@ -150,6 +150,12 @@
 #define REG_GL_IMASK   0x300c  /* Interrupt mask register */
 #define   GIMSK_CCIC_EN          0x00000004    /* CCIC Interrupt enable */
 
+#define REG_GL_FCR      0x3038  /* GPIO functional control register */
+#define   GFCR_GPIO_ON    0x08          /* Camera GPIO enabled */
+#define REG_GL_GPIOR    0x315c  /* GPIO register */
+#define   GGPIO_OUT             0x80000 /* GPIO output */
+#define   GGPIO_VAL             0x00008 /* Output pin value */
+
 #define REG_LEN                REG_GL_IMASK + 4