greybus-dev May 2026

greybus-dev@lists.linaro.org

18 participants
15 discussions

[PATCH] staging: greybus: split gb_audio_gb_get_topology()

by Khaled Saleh

Split gb_audio_gb_get_topology() into smaller helper functions to improve readability and maintainability. No functional change intended. Signed-off-by: Khaled Saleh <khaled.saleh.req(a)gmail.com> --- drivers/staging/greybus/audio_gb.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/drivers/staging/greybus/audio_gb.c b/drivers/staging/greybus/audio_gb.c index 9d8994fdb41a..b5ead09532c8 100644 --- a/drivers/staging/greybus/audio_gb.c +++ b/drivers/staging/greybus/audio_gb.c @@ -8,13 +8,10 @@ #include <linux/greybus.h> #include "audio_codec.h" -/* TODO: Split into separate calls */ -int gb_audio_gb_get_topology(struct gb_connection *connection, - struct gb_audio_topology **topology) +static int gb_audio_gb_get_topology_size(struct gb_connection *connection, + u16 *size) { struct gb_audio_get_topology_size_response size_resp; - struct gb_audio_topology *topo; - u16 size; int ret; ret = gb_operation_sync(connection, GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE, @@ -22,10 +19,24 @@ int gb_audio_gb_get_topology(struct gb_connection *connection, if (ret) return ret; - size = le16_to_cpu(size_resp.size); - if (size < sizeof(*topo)) + *size = le16_to_cpu(size_resp.size); + if (*size < sizeof(struct gb_audio_topology)) return -ENODATA; + return 0; +} + +int gb_audio_gb_get_topology(struct gb_connection *connection, + struct gb_audio_topology **topology) +{ + struct gb_audio_topology *topo; + u16 size; + int ret; + + ret = gb_audio_gb_get_topology_size(connection, &size); + if (ret) + return ret; + topo = kzalloc(size, GFP_KERNEL); if (!topo) return -ENOMEM; -- 2.34.1

1 week, 4 days

[PATCH v3] staging: greybus: bootrom: replace dev_info with dev_dbg for firmware name

by Bentley Blacketer

The original dev_info call was intentionally temporary, with a FIXME comment noting it should be downgraded to dev_dbg once modules with valid VID/PID values were common. Project Ara was cancelled in 2016, so that time has long passed. Remove the FIXME comment and downgrade to dev_dbg as originally intended. Tested via code inspection only, as Project Ara hardware is no longer available. Signed-off-by: Bentley Blacketer <sonionwhat(a)gmail.com> Signed-off-by: Bentley Blacketer <sonionwhat(a)gmail.com> --- drivers/staging/greybus/bootrom.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/staging/greybus/bootrom.c b/drivers/staging/greybus/bootrom.c index 83921d90c..058044ba7 100644 --- a/drivers/staging/greybus/bootrom.c +++ b/drivers/staging/greybus/bootrom.c @@ -163,18 +163,13 @@ static int find_firmware(struct gb_bootrom *bootrom, u8 stage) * * XXX Name it properly.. */ - snprintf(firmware_name, sizeof(firmware_name), +snprintf(firmware_name, sizeof(firmware_name), FW_NAME_PREFIX "%08x_%08x_%08x_%08x_s2l.tftf", intf->ddbl1_manufacturer_id, intf->ddbl1_product_id, intf->vendor_id, intf->product_id); - // FIXME: - // Turn to dev_dbg later after everyone has valid bootloaders with good - // ids, but leave this as dev_info for now to make it easier to track - // down "empty" vid/pid modules. - dev_info(&connection->bundle->dev, "Firmware file '%s' requested\n", + dev_dbg(&connection->bundle->dev, "Firmware file '%s' requested\n", firmware_name); - rc = request_firmware(&bootrom->fw, firmware_name, &connection->bundle->dev); if (rc) { -- 2.54.0

2 weeks, 4 days

[PATCH] staging: greybus: add missing newline to sysfs_emit

by Ajith P V

The sysfs attribute is missing a terminating newline. According to the kernel documentation for sysfs, attributes should be terminated by a newline to follow standard userspace conventions. Fix the formatting by adding a '\n' to the sysfs_emit string. This resolves the checkpatch warning: "return sysfs_emit(...) formats should include a terminating newline" Signed-off-by: Ajith P V <ajithpv.linux(a)gmail.com> --- drivers/staging/greybus/audio_manager_module.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/staging/greybus/audio_manager_module.c b/drivers/staging/greybus/audio_manager_module.c index dc90cc2d2308..5737f2a32f5a 100644 --- a/drivers/staging/greybus/audio_manager_module.c +++ b/drivers/staging/greybus/audio_manager_module.c @@ -75,7 +75,7 @@ static void gb_audio_module_release(struct kobject *kobj) static ssize_t gb_audio_module_name_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%s", module->desc.name); + return sysfs_emit(buf, "%s\n", module->desc.name); } static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = @@ -84,7 +84,7 @@ static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = static ssize_t gb_audio_module_vid_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.vid); + return sysfs_emit(buf, "%d\n", module->desc.vid); } static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = @@ -93,7 +93,7 @@ static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = static ssize_t gb_audio_module_pid_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.pid); + return sysfs_emit(buf, "%d\n", module->desc.pid); } static struct gb_audio_manager_module_attribute gb_audio_module_pid_attribute = @@ -103,7 +103,7 @@ static ssize_t gb_audio_module_intf_id_show(struct gb_audio_manager_module *modu struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.intf_id); + return sysfs_emit(buf, "%d\n", module->desc.intf_id); } static struct gb_audio_manager_module_attribute @@ -114,7 +114,7 @@ static ssize_t gb_audio_module_ip_devices_show(struct gb_audio_manager_module *m struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "0x%X", module->desc.ip_devices); + return sysfs_emit(buf, "0x%X\n", module->desc.ip_devices); } static struct gb_audio_manager_module_attribute @@ -125,7 +125,7 @@ static ssize_t gb_audio_module_op_devices_show(struct gb_audio_manager_module *m struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "0x%X", module->desc.op_devices); + return sysfs_emit(buf, "0x%X\n", module->desc.op_devices); } static struct gb_audio_manager_module_attribute -- 2.43.0

2 weeks, 4 days

[PATCH v2] staging: greybus:add missing newline in sysfs show() output

by Shyam Sunder Reddy Padira

Sysfs show() functions should return newline-terminated strings.Add missing newline to sysfs_emit() format string. Signed-off-by: Shyam Sunder Reddy Padira <shyamsunderreddypadira(a)gmail.com> ---- v2: -Remove "no functional changes" from the description as per Greg's feedback. --- drivers/staging/greybus/audio_manager_module.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/staging/greybus/audio_manager_module.c b/drivers/staging/greybus/audio_manager_module.c index dc90cc2d2308..5737f2a32f5a 100644 --- a/drivers/staging/greybus/audio_manager_module.c +++ b/drivers/staging/greybus/audio_manager_module.c @@ -75,7 +75,7 @@ static void gb_audio_module_release(struct kobject *kobj) static ssize_t gb_audio_module_name_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%s", module->desc.name); + return sysfs_emit(buf, "%s\n", module->desc.name); } static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = @@ -84,7 +84,7 @@ static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = static ssize_t gb_audio_module_vid_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.vid); + return sysfs_emit(buf, "%d\n", module->desc.vid); } static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = @@ -93,7 +93,7 @@ static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = static ssize_t gb_audio_module_pid_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.pid); + return sysfs_emit(buf, "%d\n", module->desc.pid); } static struct gb_audio_manager_module_attribute gb_audio_module_pid_attribute = @@ -103,7 +103,7 @@ static ssize_t gb_audio_module_intf_id_show(struct gb_audio_manager_module *modu struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.intf_id); + return sysfs_emit(buf, "%d\n", module->desc.intf_id); } static struct gb_audio_manager_module_attribute @@ -114,7 +114,7 @@ static ssize_t gb_audio_module_ip_devices_show(struct gb_audio_manager_module *m struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "0x%X", module->desc.ip_devices); + return sysfs_emit(buf, "0x%X\n", module->desc.ip_devices); } static struct gb_audio_manager_module_attribute @@ -125,7 +125,7 @@ static ssize_t gb_audio_module_op_devices_show(struct gb_audio_manager_module *m struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "0x%X", module->desc.op_devices); + return sysfs_emit(buf, "0x%X\n", module->desc.op_devices); } static struct gb_audio_manager_module_attribute -- 2.43.0

3 weeks

[PATCH] staging: greybus:add missing newline in sysfs show() output

by Shyam Sunder Reddy Padira

Sysfs show() functions should return newline-terminated strings.Add missing newline to sysfs_emit() format string. No functional changes. Signed-off-by: Shyam Sunder Reddy Padira <shyamsunderreddypadira(a)gmail.com> --- drivers/staging/greybus/audio_manager_module.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/staging/greybus/audio_manager_module.c b/drivers/staging/greybus/audio_manager_module.c index dc90cc2d2308..5737f2a32f5a 100644 --- a/drivers/staging/greybus/audio_manager_module.c +++ b/drivers/staging/greybus/audio_manager_module.c @@ -75,7 +75,7 @@ static void gb_audio_module_release(struct kobject *kobj) static ssize_t gb_audio_module_name_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%s", module->desc.name); + return sysfs_emit(buf, "%s\n", module->desc.name); } static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = @@ -84,7 +84,7 @@ static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = static ssize_t gb_audio_module_vid_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.vid); + return sysfs_emit(buf, "%d\n", module->desc.vid); } static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = @@ -93,7 +93,7 @@ static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = static ssize_t gb_audio_module_pid_show(struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.pid); + return sysfs_emit(buf, "%d\n", module->desc.pid); } static struct gb_audio_manager_module_attribute gb_audio_module_pid_attribute = @@ -103,7 +103,7 @@ static ssize_t gb_audio_module_intf_id_show(struct gb_audio_manager_module *modu struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d", module->desc.intf_id); + return sysfs_emit(buf, "%d\n", module->desc.intf_id); } static struct gb_audio_manager_module_attribute @@ -114,7 +114,7 @@ static ssize_t gb_audio_module_ip_devices_show(struct gb_audio_manager_module *m struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "0x%X", module->desc.ip_devices); + return sysfs_emit(buf, "0x%X\n", module->desc.ip_devices); } static struct gb_audio_manager_module_attribute @@ -125,7 +125,7 @@ static ssize_t gb_audio_module_op_devices_show(struct gb_audio_manager_module *m struct gb_audio_manager_module_attribute *attr, char *buf) { - return sysfs_emit(buf, "0x%X", module->desc.op_devices); + return sysfs_emit(buf, "0x%X\n", module->desc.op_devices); } static struct gb_audio_manager_module_attribute -- 2.43.0

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greybus-dev May 2026