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| author | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-11-18 07:52:37 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-23 19:45:32 +0100 |
| commit | 434d25728171aa72ed1b1c4d248527cbf6b6c99b (patch) | |
| tree | 86d1bbd6384c3c5ba303596b57095ae029781615 /drivers/slimbus | |
| parent | slimbus: qcom-ngd-ctrl: drop PM runtime counter on transfer error paths (diff) | |
| download | linux-434d25728171aa72ed1b1c4d248527cbf6b6c99b.tar.xz linux-434d25728171aa72ed1b1c4d248527cbf6b6c99b.zip | |
slimbus: stream: handle unsupported bitrates for presence rate
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>
Diffstat (limited to 'drivers/slimbus')
| -rw-r--r-- | drivers/slimbus/stream.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/slimbus/stream.c b/drivers/slimbus/stream.c index 73a2aa362957..7e9c818e66c1 100644 --- a/drivers/slimbus/stream.c +++ b/drivers/slimbus/stream.c @@ -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; |