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soundwire: qcom: set clk stop need reset flag at runtime 

WSA Soundwire controller needs an full reset if clock stop support
is not available in slave devices. WSA881x does not support clock stop
however WSA883x supports clock stop.

Make setting this flag at runtime to address above issue.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230525133812.30841-5-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Srinivas Kandagatla 2023-05-25 14:38:12 +01:00 committed by Vinod Koul
parent 671ca2ef12
commit 4830bfa2c8
1 changed files with 4 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/soundwire/qcom.c
View File

@ -614,10 +614,14 @@ static int qcom_swrm_enumerate(struct sdw_bus *bus)
sdw_extract_slave_id(bus, addr, &id);
found = false;
ctrl->clock_stop_not_supported = false;
/* Now compare with entries */
list_for_each_entry_safe(slave, _s, &bus->slaves, node) {
if (sdw_compare_devid(slave, id) == 0) {
qcom_swrm_set_slave_dev_num(bus, slave, i);
if (slave->prop.clk_stop_mode1)
ctrl->clock_stop_not_supported = true;
found = true;
break;
}
@ -1620,15 +1624,6 @@ static int qcom_swrm_probe(struct platform_device *pdev)
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
/* Clk stop is not supported on WSA Soundwire masters */
if (ctrl->version <= SWRM_VERSION_1_3_0) {
ctrl->clock_stop_not_supported = true;
} else {
ctrl->reg_read(ctrl, SWRM_COMP_MASTER_ID, &val);
if (val == MASTER_ID_WSA)
ctrl->clock_stop_not_supported = true;
}
#ifdef CONFIG_DEBUG_FS
ctrl->debugfs = debugfs_create_dir("qualcomm-sdw", ctrl->bus.debugfs);
debugfs_create_file("qualcomm-registers", 0400, ctrl->debugfs, ctrl,