From 4830bfa2c812689e6007f42536eeb86df08f9d29 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Thu, 25 May 2023 14:38:12 +0100 Subject: 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 Link: https://lore.kernel.org/r/20230525133812.30841-5-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul --- drivers/soundwire/qcom.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) (limited to 'drivers/soundwire') diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 488a9c064ae8..a5cbd3a77060 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -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, -- cgit