diff options
author | Jason Liu <jason.hui.liu@nxp.com> | 2022-09-26 12:56:22 -0500 |
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committer | Jason Liu <jason.hui.liu@nxp.com> | 2022-09-26 12:56:22 -0500 |
commit | 2b53d4d52360709aebc699b18fde867a571b8c39 (patch) | |
tree | c2ff72465262fbd327e6e09361154c52047ef792 /drivers/soundwire/bus.c | |
parent | 36363d8623ba60858e2632b7d2b70dae932c9a8b (diff) | |
parent | 3e98e33d345e981800e03dd29f6f6343286d30b6 (diff) |
Merge tag 'v5.15.70' into lf-5.15.y
This is the 5.15.70 stable release
* tag 'v5.15.70': (2444 commits)
Linux 5.15.70
ALSA: hda/sigmatel: Fix unused variable warning for beep power change
cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()
...
Signed-off-by: Jason Liu <jason.hui.liu@nxp.com>
Conflicts:
arch/arm/boot/dts/imx6ul.dtsi
arch/arm/mm/mmu.c
arch/arm64/boot/dts/freescale/imx8mp-evk.dts
drivers/gpu/drm/imx/dcss/dcss-kms.c
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h
drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
drivers/soc/fsl/Kconfig
drivers/soc/imx/gpcv2.c
drivers/usb/dwc3/host.c
net/dsa/slave.c
sound/soc/fsl/imx-card.c
Diffstat (limited to 'drivers/soundwire/bus.c')
-rw-r--r-- | drivers/soundwire/bus.c | 75 |
1 files changed, 42 insertions, 33 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 67369e941d0d..b7cdfa65157c 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -7,6 +7,7 @@ #include <linux/pm_runtime.h> #include <linux/soundwire/sdw_registers.h> #include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_type.h> #include "bus.h" #include "sysfs_local.h" @@ -846,15 +847,21 @@ static int sdw_slave_clk_stop_callback(struct sdw_slave *slave, enum sdw_clk_stop_mode mode, enum sdw_clk_stop_type type) { - int ret; + int ret = 0; - if (slave->ops && slave->ops->clk_stop) { - ret = slave->ops->clk_stop(slave, mode, type); - if (ret < 0) - return ret; + mutex_lock(&slave->sdw_dev_lock); + + if (slave->probed) { + struct device *dev = &slave->dev; + struct sdw_driver *drv = drv_to_sdw_driver(dev->driver); + + if (drv->ops && drv->ops->clk_stop) + ret = drv->ops->clk_stop(slave, mode, type); } - return 0; + mutex_unlock(&slave->sdw_dev_lock); + + return ret; } static int sdw_slave_clk_stop_prepare(struct sdw_slave *slave, @@ -1616,14 +1623,24 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave) } /* Update the Slave driver */ - if (slave_notify && slave->ops && - slave->ops->interrupt_callback) { - slave_intr.sdca_cascade = sdca_cascade; - slave_intr.control_port = clear; - memcpy(slave_intr.port, &port_status, - sizeof(slave_intr.port)); - - slave->ops->interrupt_callback(slave, &slave_intr); + if (slave_notify) { + mutex_lock(&slave->sdw_dev_lock); + + if (slave->probed) { + struct device *dev = &slave->dev; + struct sdw_driver *drv = drv_to_sdw_driver(dev->driver); + + if (drv->ops && drv->ops->interrupt_callback) { + slave_intr.sdca_cascade = sdca_cascade; + slave_intr.control_port = clear; + memcpy(slave_intr.port, &port_status, + sizeof(slave_intr.port)); + + drv->ops->interrupt_callback(slave, &slave_intr); + } + } + + mutex_unlock(&slave->sdw_dev_lock); } /* Ack interrupt */ @@ -1697,29 +1714,21 @@ io_err: static int sdw_update_slave_status(struct sdw_slave *slave, enum sdw_slave_status status) { - unsigned long time; + int ret = 0; - if (!slave->probed) { - /* - * the slave status update is typically handled in an - * interrupt thread, which can race with the driver - * probe, e.g. when a module needs to be loaded. - * - * make sure the probe is complete before updating - * status. - */ - time = wait_for_completion_timeout(&slave->probe_complete, - msecs_to_jiffies(DEFAULT_PROBE_TIMEOUT)); - if (!time) { - dev_err(&slave->dev, "Probe not complete, timed out\n"); - return -ETIMEDOUT; - } + mutex_lock(&slave->sdw_dev_lock); + + if (slave->probed) { + struct device *dev = &slave->dev; + struct sdw_driver *drv = drv_to_sdw_driver(dev->driver); + + if (drv->ops && drv->ops->update_status) + ret = drv->ops->update_status(slave, status); } - if (!slave->ops || !slave->ops->update_status) - return 0; + mutex_unlock(&slave->sdw_dev_lock); - return slave->ops->update_status(slave, status); + return ret; } /** |