V4L/DVB (9583): Remember chip id of devices at initialization

When setting up the device, remember the chip id, so we can control behavior
in the future without having to read the register continuously.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index d93e1eb04331..90389270389b 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -1319,6 +1319,7 @@ void em28xx_pre_card_setup(struct em28xx *dev)
         dev->wait_after_write = 5;
         rc = em28xx_read_reg(dev, EM28XX_R0A_CHIPID);
         if (rc > 0) {
+                dev->chip_id = rc;
                 switch (rc) {
                 case CHIP_ID_EM2860:
                         em28xx_info("chip ID is em2860\n");