Messages in this thread Patch in this message | | | From | Pali Rohár <> | Subject | [PATCH] radio-bcm2048: Fix region selection | Date | Fri, 15 May 2015 23:32:51 +0200 |
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From: maxx <maxx@spaceboyz.net>
This actually fixes region selection for BCM2048 FM receiver. To select the japanese FM-band an additional bit in FM_CTRL register needs to be set. This might not sound so important but it enables at least me to listen to some 'very interesting' radio transmission below normal FM-band.
Patch writen by maxx@spaceboyz.net
Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Cc: maxx@spaceboyz.net --- drivers/staging/media/bcm2048/radio-bcm2048.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/staging/media/bcm2048/radio-bcm2048.c b/drivers/staging/media/bcm2048/radio-bcm2048.c index aeb6c3c..1482d4b 100644 --- a/drivers/staging/media/bcm2048/radio-bcm2048.c +++ b/drivers/staging/media/bcm2048/radio-bcm2048.c @@ -739,7 +739,20 @@ static int bcm2048_set_region(struct bcm2048_device *bdev, u8 region) return -EINVAL; mutex_lock(&bdev->mutex); + bdev->region_info = region_configs[region]; + + bdev->cache_fm_ctrl &= ~BCM2048_BAND_SELECT; + if (region > 2) { + bdev->cache_fm_ctrl |= BCM2048_BAND_SELECT; + err = bcm2048_send_command(bdev, BCM2048_I2C_FM_CTRL, + bdev->cache_fm_ctrl); + if (err) { + mutex_unlock(&bdev->mutex); + goto done; + } + } + mutex_unlock(&bdev->mutex); if (bdev->frequency < region_configs[region].bottom_frequency || -- 1.7.9.5
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