From 31a62d415726d94bae5caf5f2e50232aa06babf6 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 18 May 2012 09:36:17 -0300 Subject: [media] snd_tea575x: Add write_/read_val operations Some devices which use the tea575x tuner chip don't allow bit banging the lines, instead they offer a method to directly set / get the contents of the 25 bit shift-register in the chip. Notably the Griffin radioSHARK USB radio receiver does this. Signed-off-by: Hans de Goede CC: Ondrej Zary Signed-off-by: Mauro Carvalho Chehab --- sound/i2c/other/tea575x-tuner.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'sound/i2c') diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index b29b88f93c9e..080aae9d1198 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -71,6 +71,9 @@ static void snd_tea575x_write(struct snd_tea575x *tea, unsigned int val) u16 l; u8 data; + if (tea->ops->write_val) + return tea->ops->write_val(tea, val); + tea->ops->set_direction(tea, 1); udelay(16); @@ -94,6 +97,9 @@ static u32 snd_tea575x_read(struct snd_tea575x *tea) u16 l, rdata; u32 data = 0; + if (tea->ops->read_val) + return tea->ops->read_val(tea); + tea->ops->set_direction(tea, 0); tea->ops->set_pins(tea, 0); udelay(16); -- cgit