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slimbus: stream: handle unsupported bitrates for presence rate

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Handle errors of getting presence rate for unsupported stream bitrate,
instead of sending -EINVAL in change content message.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221118065246.6835-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Krzysztof Kozlowski 2022-11-18 06:52:37 +00:00 committed by Greg Kroah-Hartman
parent 63c60a226c
commit 434d257281
1 changed files with 9 additions and 2 deletions
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11
drivers/slimbus/stream.c
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@ -204,7 +204,7 @@ int slim_stream_prepare(struct slim_stream_runtime *rt,
{
struct slim_controller *ctrl = rt->dev->ctrl;
struct slim_port *port;
int num_ports, i, port_id;
int num_ports, i, port_id, prrate;
if (rt->ports) {
dev_err(&rt->dev->dev, "Stream already Prepared\n");
@ -221,6 +221,13 @@ int slim_stream_prepare(struct slim_stream_runtime *rt,
rt->bps = cfg->bps;
rt->direction = cfg->direction;
prrate = slim_get_prate_code(cfg->rate);
if (prrate < 0) {
dev_err(&rt->dev->dev, "Cannot get presence rate for rate %d Hz\n",
cfg->rate);
return prrate;
}
if (cfg->rate % ctrl->a_framer->superfreq) {
/*
* data rate not exactly multiple of super frame,
@ -241,7 +248,7 @@ int slim_stream_prepare(struct slim_stream_runtime *rt,
port = &rt->ports[i];
port->state = SLIM_PORT_DISCONNECTED;
port->id = port_id;
port->ch.prrate = slim_get_prate_code(cfg->rate);
port->ch.prrate = prrate;
port->ch.id = cfg->chs[i];
port->ch.data_fmt = SLIM_CH_DATA_FMT_NOT_DEFINED;
port->ch.aux_fmt = SLIM_CH_AUX_FMT_NOT_APPLICABLE;