From e6cf0c409b40349f46427f9fc56f6ce4ec640a5d Mon Sep 17 00:00:00 2001 From: Jan Roemisch Date: Tue, 9 Jun 2015 08:44:33 -0300 Subject: [PATCH] [media] radio-bcm2048: Fix region selection MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes region selection for lower bottom_frequency in BCM2048 FM receiver. It also removes "Japan wide band" region since this is impossible to do just like that. Signed-off-by: Jan Roemisch Acked-by: Pali Rohár Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/bcm2048/radio-bcm2048.c | 20 +++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/staging/media/bcm2048/radio-bcm2048.c b/drivers/staging/media/bcm2048/radio-bcm2048.c index 8bc68e2b4052..fb55e5941445 100644 --- a/drivers/staging/media/bcm2048/radio-bcm2048.c +++ b/drivers/staging/media/bcm2048/radio-bcm2048.c @@ -342,14 +342,6 @@ static struct region_info region_configs[] = { .deemphasis = 50, .region = 3, }, - /* Japan wide band */ - { - .channel_spacing = 10, - .bottom_frequency = 76000, - .top_frequency = 108000, - .deemphasis = 50, - .region = 4, - }, }; /* @@ -741,6 +733,18 @@ static int bcm2048_set_region(struct bcm2048_device *bdev, u8 region) mutex_lock(&bdev->mutex); bdev->region_info = region_configs[region]; + + if (region_configs[region].bottom_frequency < 87500) + bdev->cache_fm_ctrl |= BCM2048_BAND_SELECT; + else + 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 ||