diff options
| author | Vadim Bendebury <vbendeb@chromium.org> | 2015-02-11 15:13:04 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-17 09:59:35 +0200 |
| commit | 3cfb6a066b6801186b716a4f789b69655e1e420e (patch) | |
| tree | 26e16a9a74e4819bdac5e286fdd70d4953ed92ad /src/mainboard/google/storm | |
| parent | 7f70ad610b23ef389c73b61a73d0920b77da4460 (diff) | |
ipq806x: add LPASS clock control driver
Add a clock control driver to initialize the clock tree inside the
low-power audio subsystem. Depthcharge builds up on this to enable
audio function on storm.
The clock is hardcoded for 48KHz frame rate, two 16 bit channels.
BRANCH=storm
BUG=chrome-os-partner:35247
TEST=with depthcharge patches applied and Using depthcharge CLI audio
test program verified that the target generates sensible sounds
audio 100 100
audio 1000 5000
Change-Id: I56513fc782657ade99b6e43b2d5d3141d27ecc4e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 0d4f408408aa38b2f0ee19b83ed490de39074760
Original-Change-Id: If8ffc326698fcea17e05d536930d927ca553481f
Original-Signed-off-by: Kenneth Westfield <kwestfie@codeaurora.org>
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/248830
Original-Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: http://review.coreboot.org/9758
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard/google/storm')
| -rw-r--r-- | src/mainboard/google/storm/mainboard.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mainboard/google/storm/mainboard.c b/src/mainboard/google/storm/mainboard.c index f83cfe99ad..db743cfa2e 100644 --- a/src/mainboard/google/storm/mainboard.c +++ b/src/mainboard/google/storm/mainboard.c @@ -98,6 +98,14 @@ static void mainboard_init(device_t dev) /* Copy WIFI calibration data into CBMEM. */ cbmem_add_vpd_calibration_data(); #endif + + /* + * Make sure bootloader can issue sounds The frequency is calculated + * as "<frame_rate> * <bit_width> * <channels> * 4", i.e. + * + * 48000 * 2 * 16 * 4 = 6144000 + */ + audio_clock_config(6144000); } static void mainboard_enable(device_t dev) |