On 09/03/2021 15:55, Pierre-Louis Bossart wrote:
On 3/9/21 8:15 AM, Srinivas Kandagatla wrote:
currently the internal bitmask used for allocating ports starts with offset 0. This is bit confusing as data port numbers on Qualcomm controller are valid from 1 to 14. So adjust this bit mask accordingly, this will also help while adding static port map support.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org
drivers/soundwire/qcom.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 6d22df01f354..f4f1c5f2af0b 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -519,7 +519,7 @@ static void qcom_swrm_stream_free_ports(struct qcom_swrm_ctrl *ctrl, port_mask = &ctrl->din_port_mask; list_for_each_entry(p_rt, &m_rt->port_list, port_node) - clear_bit(p_rt->num - 1, port_mask); + clear_bit(p_rt->num, port_mask); } mutex_unlock(&ctrl->port_lock); @@ -552,13 +552,13 @@ static int qcom_swrm_stream_alloc_ports(struct qcom_swrm_ctrl *ctrl, list_for_each_entry(p_rt, &s_rt->port_list, port_node) { /* Port numbers start from 1 - 14*/ pn = find_first_zero_bit(port_mask, maxport); - if (pn > (maxport - 1)) { + if (pn > (maxport)) {
nit-pick: useless parentheses
I agree, will remove this and address the other comment too in next spin!
--srini
dev_err(ctrl->dev, "All ports busy\n"); ret = -EBUSY; goto err; } set_bit(pn, port_mask); - pconfig[nports].num = pn + 1; + pconfig[nports].num = pn; pconfig[nports].ch_mask = p_rt->ch_mask; nports++; } @@ -580,7 +580,7 @@ static int qcom_swrm_stream_alloc_ports(struct qcom_swrm_ctrl *ctrl, err: if (ret) { for (i = 0; i < nports; i++) - clear_bit(pconfig[i].num - 1, port_mask); + clear_bit(pconfig[i].num, port_mask); } mutex_unlock(&ctrl->port_lock); @@ -754,6 +754,9 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl) ctrl->num_dout_ports = val; nports = ctrl->num_dout_ports + ctrl->num_din_ports; + /* port numbers are non zero, so mark port 0 */
mask?
+ set_bit(0, &ctrl->dout_port_mask); + set_bit(0, &ctrl->din_port_mask); ret = of_property_read_u8_array(np, "qcom,ports-offset1", off1, nports);