Added descriptions for all not described parameters.
Signed-off-by: Grigor Tovmasyan <tovmasya@xxxxxxxxxxxx>
---
drivers/usb/dwc2/core.c | 7 +++
drivers/usb/dwc2/core.h | 131 ++++++++++++++++++++++++++++++++++---------
drivers/usb/dwc2/debug.h | 2 +-
drivers/usb/dwc2/debugfs.c | 19 ++++---
drivers/usb/dwc2/gadget.c | 29 +++++++---
drivers/usb/dwc2/hcd.c | 3 +-
drivers/usb/dwc2/hcd.h | 14 +++--
drivers/usb/dwc2/hcd_ddma.c | 1 +
drivers/usb/dwc2/hcd_intr.c | 12 ++++
drivers/usb/dwc2/hcd_queue.c | 5 +-
drivers/usb/dwc2/params.c | 8 +++
drivers/usb/dwc2/pci.c | 6 ++
12 files changed, 183 insertions(+), 54 deletions(-)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index dbca3b8890da..c47b56c887aa 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -281,6 +281,8 @@ static void dwc2_wait_for_mode(struct dwc2_hsotg *hsotg,
/**
* dwc2_iddig_filter_enabled() - Returns true if the IDDIG debounce
* filter is enabled.
+ *
+ *@hsotg: Programming view of DWC_otg controller
*/
static bool dwc2_iddig_filter_enabled(struct dwc2_hsotg *hsotg)
{
@@ -399,6 +401,9 @@ int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait)
* If a force is done, it requires a IDDIG debounce filter delay if
* the filter is configured and enabled. We poll the current mode of
* the controller to account for this delay.
+ *
+ * @hsotg: Programming view of DWC_otg controller
+ * @host: Host mode flag
*/
void dwc2_force_mode(struct dwc2_hsotg *hsotg, bool host)
{
@@ -445,6 +450,8 @@ void dwc2_force_mode(struct dwc2_hsotg *hsotg, bool host)
* or not because the value of the connector ID status is affected by
* the force mode. We only need to call this once during probe if
* dr_mode == OTG.
+ *
+ *@hsotg: Programming view of DWC_otg controller
*/
void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg)
{
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index 0f0c21cf0192..9252a7343a5a 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -164,12 +164,11 @@ struct dwc2_hsotg_req;
* and has yet to be completed (maybe due to data move, or simply
* awaiting an ack from the core all the data has been completed).
* @debugfs: File entry for debugfs file for this endpoint.
- * @lock: State lock to protect contents of endpoint.
* @dir_in: Set to true if this endpoint is of the IN direction, which
* means that it is sending data to the Host.
* @index: The index for the endpoint registers.
* @mc: Multi Count - number of transactions per microframe
- * @interval - Interval for periodic endpoints, in frames or microframes.
+ * @interval: Interval for periodic endpoints, in frames or microframes.
* @name: The name array passed to the USB core.
* @halted: Set if the endpoint has been halted.
* @periodic: Set if this is a periodic ep, such as Interrupt
@@ -182,6 +181,7 @@ struct dwc2_hsotg_req;
* @next_desc: index of next free descriptor in the ISOC chain under SW control.
* @total_data: The total number of data bytes done.
* @fifo_size: The size of the FIFO (for periodic IN endpoints)
+ * @fifo_index: For Dedicated FIFO operation, only FIFO0 can be used for EP0.
* @fifo_load: The amount of data loaded into the FIFO (periodic IN)
* @last_load: The offset of data for the last start of request.
* @size_loaded: The last loaded size for DxEPTSIZE for periodic IN
@@ -523,7 +523,7 @@ struct dwc2_core_params {
*
* The values that are not in dwc2_core_params are documented below.
*
- * @op_mode Mode of Operation
+ * @op_mode: Mode of Operation
* 0 - HNP- and SRP-Capable OTG (Host & Device)
* 1 - SRP-Capable OTG (Host & Device)
* 2 - Non-HNP and Non-SRP Capable OTG (Host & Device)
@@ -531,40 +531,87 @@ struct dwc2_core_params {
* 4 - Non-OTG Device
* 5 - SRP-Capable Host
* 6 - Non-OTG Host
- * @arch Architecture
+ * @arch: Architecture
* 0 - Slave only
* 1 - External DMA
* 2 - Internal DMA
- * @power_optimized Are power optimizations enabled?
- * @num_dev_ep Number of device endpoints available
- * @num_dev_perio_in_ep Number of device periodic IN endpoints
+ * @power_optimized: Are power optimizations enabled?
+ * @num_dev_ep: Number of device endpoints available
+ * @num_dev_perio_in_ep: Number of device periodic IN endpoints
* available
- * @dev_token_q_depth Device Mode IN Token Sequence Learning Queue
+ * @dev_token_q_depth: Device Mode IN Token Sequence Learning Queue
* Depth
* 0 to 30
- * @host_perio_tx_q_depth
+ * @host_perio_tx_q_depth:
* Host Mode Periodic Request Queue Depth
* 2, 4 or 8
- * @nperio_tx_q_depth
+ * @nperio_tx_q_depth:
* Non-Periodic Request Queue Depth
* 2, 4 or 8
- * @hs_phy_type High-speed PHY interface type
+ * @hs_phy_type: High-speed PHY interface type
* 0 - High-speed interface not supported
* 1 - UTMI+
* 2 - ULPI
* 3 - UTMI+ and ULPI
- * @fs_phy_type Full-speed PHY interface type
+ * @fs_phy_type: Full-speed PHY interface type
* 0 - Full speed interface not supported
* 1 - Dedicated full speed interface
* 2 - FS pins shared with UTMI+ pins
* 3 - FS pins shared with ULPI pins
* @total_fifo_size: Total internal RAM for FIFOs (bytes)
- * @utmi_phy_data_width UTMI+ PHY data width
+ * @utmi_phy_data_width: UTMI+ PHY data width
* 0 - 8 bits
* 1 - 16 bits
* 2 - 8 or 16 bits
* @snpsid: Value from SNPSID register
* @dev_ep_dirs: Direction of device endpoints (GHWCFG1)
+ * @dma_desc_enable: When DMA mode is enabled, specifies whether to use
+ * address DMA mode or descriptor DMA mode for accessing
+ * the data FIFOs. The driver will automatically detect the
+ * value for this if none is specified.
+ * 0 - Address DMA
+ * 1 - Descriptor DMA (default, if available)
+ * @enable_dynamic_fifo: 0 - Use coreConsultant-specified FIFO size parameters
+ * 1 - Allow dynamic FIFO sizing (default, if available)
+ * @en_multiple_tx_fifo: Specifies whether dedicated per-endpoint transmit FIFOs
+ * are enabled for non-periodic IN endpoints in device
+ * mode.
+ * @host_nperio_tx_fifo_size: Number of 4-byte words in the non-periodic Tx FIFO
+ * in host mode when dynamic FIFO sizing is enabled
+ * 16 to 32768
+ * Actual maximum value is autodetected and also
+ * the default.
+ * @host_perio_tx_fifo_size: Number of 4-byte words in the periodic Tx FIFO in
+ * host mode when dynamic FIFO sizing is enabled
+ * 16 to 32768
+ * Actual maximum value is autodetected and also
+ * the default.
+ * @max_transfer_size: The maximum transfer size supported, in bytes
+ * 2047 to 65,535
+ * Actual maximum value is autodetected and also
+ * the default.
+ * @max_packet_count: The maximum number of packets in a transfer
+ * 15 to 511
+ * Actual maximum value is autodetected and also
+ * the default.
+ * @host_channels: The number of host channel registers to use
+ * 1 to 16
+ * Actual maximum value is autodetected and also
+ * the default.
+ * @dev_nperio_tx_fifo_size: Number of 4-byte words in the non-periodic Tx FIFO
+ * in device mode when dynamic FIFO sizing is enabled
+ * 16 to 32768
+ * Actual maximum value is autodetected and also
+ * the default.
+ * @i2c_enable: Specifies whether to use the I2Cinterface for a full
+ * speed PHY. This parameter is only applicable if phy_type
+ * is FS.
+ * 0 - No (default)
+ * 1 - Yes
+ * @rx_fifo_size: Number of 4-byte words in the Rx FIFO when dynamic
+ * FIFO sizing is enabled 16 to 32768
+ * Actual maximum value is autodetected and also
+ * the default.
*/
struct dwc2_hw_params {
unsigned op_mode:3;
@@ -609,8 +656,10 @@ struct dwc2_hw_params {
* @gi2cctl: Backup of GI2CCTL register
* @hptxfsiz: Backup of HPTXFSIZ register
* @gdfifocfg: Backup of GDFIFOCFG register
+ * @pcgcctl: Backup of GDFIFOCFG register
* @dtxfsiz: Backup of DTXFSIZ registers for each endpoint
* @gpwrdn: Backup of GPWRDN register
+ * @valid: True if registers values backuped.
*/
struct dwc2_gregs_backup {
u32 gotgctl;
@@ -642,6 +691,7 @@ struct dwc2_gregs_backup {
* @doepctl: Backup of DOEPCTL register
* @doeptsiz: Backup of DOEPTSIZ register
* @doepdma: Backup of DOEPDMA register
+ * @valid: True if registers values backuped.
*/
struct dwc2_dregs_backup {
u32 dcfg;
@@ -664,8 +714,9 @@ struct dwc2_dregs_backup {
* @hcfg: Backup of HCFG register
* @haintmsk: Backup of HAINTMSK register
* @hcintmsk: Backup of HCINTMSK register
- * @hptr0: Backup of HPTR0 register
+ * @hprt0: Backup of HPTR0 register
* @hfir: Backup of HFIR register
+ * @valid: True if registers values backuped.
*/
struct dwc2_hregs_backup {
u32 hcfg;
@@ -764,7 +815,7 @@ struct dwc2_hregs_backup {
* @regs: Pointer to controller regs
* @hw_params: Parameters that were autodetected from the
* hardware registers
- * @core_params: Parameters that define how the core should be configured
+ * @params: Parameters that define how the core should be configured
* @op_state: The operational State, during transitions (a_host=>
* a_peripheral and b_device=>b_host) this may not match
* the core, but allows the software to determine
@@ -773,9 +824,9 @@ struct dwc2_hregs_backup {
* - USB_DR_MODE_PERIPHERAL
* - USB_DR_MODE_HOST
* - USB_DR_MODE_OTG
- * @hcd_enabled Host mode sub-driver initialization indicator.
- * @gadget_enabled Peripheral mode sub-driver initialization indicator.
- * @ll_hw_enabled Status of low-level hardware resources.
+ * @hcd_enabled: Host mode sub-driver initialization indicator.
+ * @gadget_enabled: Peripheral mode sub-driver initialization indicator.
+ * @ll_hw_enabled: Status of low-level hardware resources.
* @phy: The otg phy transceiver structure for phy control.
* @uphy: The otg phy transceiver structure for old USB phy
* control.
@@ -794,9 +845,9 @@ struct dwc2_hregs_backup {
* interrupt
* @wkp_timer: Timer object for handling Wakeup Detected interrupt
* @lx_state: Lx state of connected device
- * @gregs_backup: Backup of global registers during suspend
- * @dregs_backup: Backup of device registers during suspend
- * @hregs_backup: Backup of host registers during suspend
+ * @gr_backup: Backup of global registers during suspend
+ * @dr_backup: Backup of device registers during suspend
+ * @hr_backup: Backup of host registers during suspend
*
* These are for host mode:
*
@@ -860,8 +911,8 @@ struct dwc2_hregs_backup {
* host channel is available for non-periodic transactions.
* @non_periodic_channels: Number of host channels assigned to non-periodic
* transfers
- * @available_host_channels Number of host channels available for the microframe
- * scheduler to use
+ * @available_host_channels: Number of host channels available for the
+ * microframe scheduler to use
* @hc_ptr_array: Array of pointers to the host channel descriptors.
* Allows accessing a host channel descriptor given the
* host channel number. This is useful in interrupt
@@ -884,9 +935,6 @@ struct dwc2_hregs_backup {
* @dedicated_fifos: Set if the hardware has dedicated IN-EP fifos.
* @num_of_eps: Number of available EPs (excluding EP0)
* @debug_root: Root directrory for debugfs.
- * @debug_file: Main status file for debugfs.
- * @debug_testmode: Testmode status file for debugfs.
- * @debug_fifo: FIFO status file for debugfs.
* @ep0_reply: Request used for ep0 reply.
* @ep0_buff: Buffer for EP0 reply data, if needed.
* @ctrl_buff: Buffer for EP0 control requests.
@@ -899,7 +947,36 @@ struct dwc2_hregs_backup {
* @ctrl_in_desc: EP0 IN data phase desc chain pointer
* @ctrl_out_desc_dma: EP0 OUT data phase desc chain DMA address
* @ctrl_out_desc: EP0 OUT data phase desc chain pointer
- * @eps: The endpoints being supplied to the gadget framework
+ * @irq: Interrupt request line number
+ * @clk: Pointer to otg clock
+ * @reset: Pointer to dwc2 reset controller
+ * @regset: A pointer to a struct debugfs_regset32, which contains
+ * a pointer to an array of register definitions, the
+ * array size and the base address where the register bank
+ * is to be found.
+ * @bus_suspended: True if bus is suspended
+ * @last_frame_num: Number of last frame. Range from 0 to 32768
+ * @frame_num_array: Used only if CONFIG_USB_DWC2_TRACK_MISSED_SOFS is
+ * defined, for missed SOFs tracking. Array holds that
+ * frame numbers, which not equal to last_frame_num +1
+ * @last_frame_num_array: Used only if CONFIG_USB_DWC2_TRACK_MISSED_SOFS is
+ * defined, for missed SOFs tracking.
+ * If current_frame_number != last_frame_num+1
+ * then last_frame_num added to this array
+ * @frame_num_idx: Actual size of frame_num_array and last_frame_num_array
+ * @dumped_frame_num_array: 1 - if missed SOFs frame numbers dumbed
+ * 0 - if missed SOFs frame numbers not dumbed
+ * @fifo_mem: Total internal RAM for FIFOs (bytes)
+ * @fifo_map: Each bit intend for concrete fifo. If that bit is set,
+ * then that fifo is used
+ * @gadget: Represents a usb slave device
+ * @connected: Used in slave mode. True if device connected with host
+ * @eps_in: The IN endpoints being supplied to the gadget framework
+ * @eps_out: The OUT endpoints being supplied to the gadget framework
+ * @new_connection: Used in host mode. True if there are new connected
+ * device
+ * @enabled: Indicates the enabling state of controller
+ *
*/
struct dwc2_hsotg {
struct device *dev;
diff --git a/drivers/usb/dwc2/debug.h b/drivers/usb/dwc2/debug.h
index 6f23219c13cb..a8c565b6bc34 100644
--- a/drivers/usb/dwc2/debug.h
+++ b/drivers/usb/dwc2/debug.h
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* debug.h - Designware USB2 DRD controller debug header
*
* Copyright (C) 2015 Intel Corporation
diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c
index f4650a88be78..9e491fe113a8 100644
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* debugfs.c - Designware USB2 DRD controller debugfs
*
* Copyright (C) 2015 Intel Corporation
@@ -16,12 +16,13 @@
#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || \
IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
+
/**
- * testmode_write - debugfs: change usb test mode
- * @seq: The seq file to write to.
- * @v: Unused parameter.
- *
- * This debugfs entry modify the current usb test mode.
+ * testmode_write() - change usb test mode state.
+ * @file: The file to write to.
+ * @ubuf: The buffer where user wrote.
+ * @count: The ubuf size.
+ * @ppos: Unused parameter.
*/
static ssize_t testmode_write(struct file *file, const char __user *ubuf, size_t
count, loff_t *ppos)
@@ -55,9 +56,9 @@ static ssize_t testmode_write(struct file *file, const char __user *ubuf, size_t
}
/**
- * testmode_show - debugfs: show usb test mode state
- * @seq: The seq file to write to.
- * @v: Unused parameter.
+ * testmode_show() - debugfs: show usb test mode state
+ * @s: The seq file to write to.
+ * @unused: Unused parameter.
*
* This debugfs entry shows which usb test mode is currently enabled.
*/
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 66be52bde8da..54375dc03be6 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
@@ -107,7 +107,6 @@ static inline bool using_desc_dma(struct dwc2_hsotg *hsotg)
/**
* dwc2_gadget_incr_frame_num - Increments the targeted frame number.
* @hs_ep: The endpoint
- * @increment: The value to increment by
*
* This function will also check if the frame number overruns DSTS_SOFFN_LIMIT.
* If an overrun occurs it will wrap the value and set the frame_overrun flag.
@@ -190,6 +189,8 @@ static void dwc2_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg,
/**
* dwc2_hsotg_tx_fifo_count - return count of TX FIFOs in device mode
+ *
+ * @hsotg: Programming view of the DWC_otg controller
*/
int dwc2_hsotg_tx_fifo_count(struct dwc2_hsotg *hsotg)
{
@@ -204,6 +205,8 @@ int dwc2_hsotg_tx_fifo_count(struct dwc2_hsotg *hsotg)
/**
* dwc2_hsotg_ep_info_size - return Endpoint Info Control block size in DWORDs
+ *
+ * @hsotg: Programming view of the DWC_otg controller
*/
static int dwc2_hsotg_ep_info_size(struct dwc2_hsotg *hsotg)
{
@@ -240,6 +243,8 @@ static int dwc2_hsotg_ep_info_size(struct dwc2_hsotg *hsotg)
/**
* dwc2_hsotg_tx_fifo_total_depth - return total FIFO depth available for
* device mode TX FIFOs
+ *
+ * @hsotg: Programming view of the DWC_otg controller
*/
int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg)
{
@@ -265,6 +270,8 @@ int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg)
/**
* dwc2_hsotg_tx_fifo_average_depth - returns average depth of device mode
* TX FIFOs
+ *
+ * @hsotg: Programming view of the DWC_otg controller
*/
int dwc2_hsotg_tx_fifo_average_depth(struct dwc2_hsotg *hsotg)
{
@@ -364,6 +371,7 @@ static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
}
/**
+ * dwc2_hsotg_ep_alloc_request - allocate USB rerequest structure
* @ep: USB endpoint to allocate request for.
* @flags: Allocation flags
*
@@ -2472,6 +2480,7 @@ static u32 dwc2_hsotg_ep0_mps(unsigned int mps)
* @ep: The index number of the endpoint
* @mps: The maximum packet size in bytes
* @mc: The multicount value
+ * @dir_in: True if direction is in.
*
* Configure the maximum packet size for the given endpoint, updating
* the hardware control registers to reflect this.
@@ -2786,7 +2795,7 @@ static void dwc2_gadget_handle_ep_disabled(struct dwc2_hsotg_ep *hs_ep)
/**
* dwc2_gadget_handle_out_token_ep_disabled - handle DXEPINT_OUTTKNEPDIS
- * @hs_ep: The endpoint on which interrupt is asserted.
+ * @ep: The endpoint on which interrupt is asserted.
*
* This is starting point for ISOC-OUT transfer, synchronization done with
* first out token received from host while corresponding EP is disabled.
@@ -3241,6 +3250,7 @@ static void dwc2_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)
/**
* dwc2_hsotg_core_init - issue softreset to the core
* @hsotg: The device state
+ * @is_usb_reset: Usb resetting flag
*
* Issue a soft reset to the core, and await the core finishing it.
*/
@@ -4310,7 +4320,6 @@ static int dwc2_hsotg_udc_start(struct usb_gadget *gadget,
/**
* dwc2_hsotg_udc_stop - stop the udc
* @gadget: The usb gadget state
- * @driver: The usb gadget driver
*
* Stop udc hw block and stay tunned for future transmissions
*/
@@ -4457,6 +4466,7 @@ static const struct usb_gadget_ops dwc2_hsotg_gadget_ops = {
* @hsotg: The device state.
* @hs_ep: The endpoint to be initialised.
* @epnum: The endpoint number
+ * @dir_in: True if direction is in.
*
* Initialise the given endpoint (as part of the probe and device state
* creation) to give to the gadget driver. Setup the endpoint name, any
@@ -4530,7 +4540,7 @@ static void dwc2_hsotg_initep(struct dwc2_hsotg *hsotg,
/**
* dwc2_hsotg_hw_cfg - read HW configuration registers
- * @param: The device state
+ * @hsotg: Programming view of the DWC_otg controller
*
* Read the USB core HW configuration registers
*/
@@ -4586,7 +4596,8 @@ static int dwc2_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
/**
* dwc2_hsotg_dump - dump state of the udc
- * @param: The device state
+ * @hsotg: Programming view of the DWC_otg controller
+ *
*/
static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg)
{
@@ -4637,7 +4648,8 @@ static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg)
/**
* dwc2_gadget_init - init function for gadget
- * @dwc2: The data structure for the DWC2 driver.
+ * @hsotg: Programming view of the DWC_otg controller
+ *
*/
int dwc2_gadget_init(struct dwc2_hsotg *hsotg)
{
@@ -4729,7 +4741,8 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg)
/**
* dwc2_hsotg_remove - remove function for hsotg driver
- * @pdev: The platform information for the driver
+ * @hsotg: Programming view of the DWC_otg controller
+ *
*/
int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg)
{
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 614bb9603def..7cae730cc916 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -584,7 +584,7 @@ u32 dwc2_calc_frame_interval(struct dwc2_hsotg *hsotg)
* dwc2_read_packet() - Reads a packet from the Rx FIFO into the destination
* buffer
*
- * @core_if: Programming view of DWC_otg controller
+ * @hsotg: Programming view of DWC_otg controller
* @dest: Destination buffer for the packet
* @bytes: Number of bytes to copy to the destination
*/
@@ -4099,7 +4099,6 @@ static struct dwc2_hsotg *dwc2_hcd_to_hsotg(struct usb_hcd *hcd)
* then the refcount for the structure will go to 0 and we'll free it.
*
* @hsotg: The HCD state structure for the DWC OTG controller.
- * @qh: The QH structure.
* @context: The priv pointer from a struct dwc2_hcd_urb.
* @mem_flags: Flags for allocating memory.
* @ttport: We'll return this device's port number here. That's used to
diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h
index 78e9e01051b5..856312a2d58d 100644
--- a/drivers/usb/dwc2/hcd.h
+++ b/drivers/usb/dwc2/hcd.h
@@ -80,7 +80,7 @@ struct dwc2_qh;
* @xfer_count: Number of bytes transferred so far
* @start_pkt_count: Packet count at start of transfer
* @xfer_started: True if the transfer has been started
- * @ping: True if a PING request should be issued on this channel
+ * @do_ping: True if a PING request should be issued on this channel
* @error_state: True if the error count for this transaction is non-zero
* @halt_on_queue: True if this channel should be halted the next time a
* request is queued for the channel. This is necessary in
@@ -102,7 +102,7 @@ struct dwc2_qh;
* @schinfo: Scheduling micro-frame bitmap
* @ntd: Number of transfer descriptors for the transfer
* @halt_status: Reason for halting the host channel
- * @hcint Contents of the HCINT register when the interrupt came
+ * @hcint: Contents of the HCINT register when the interrupt came
* @qh: QH for the transfer being processed by this channel
* @hc_list_entry: For linking to list of host channels
* @desc_list_addr: Current QH's descriptor list DMA address
@@ -237,7 +237,7 @@ struct dwc2_tt {
/**
* struct dwc2_hs_transfer_time - Info about a transfer on the high speed bus.
*
- * @start_schedule_usecs: The start time on the main bus schedule. Note that
+ * @start_schedule_us: The start time on the main bus schedule. Note that
* the main bus schedule is tightly packed and this
* time should be interpreted as tightly packed (so
* uFrame 0 starts at 0 us, uFrame 1 starts at 100 us
@@ -301,7 +301,6 @@ struct dwc2_hs_transfer_time {
* "struct dwc2_tt". Not used if this device is high
* speed. Note that this is in "schedule slice" which
* is tightly packed.
- * @ls_duration_us: Duration on the low speed bus schedule.
* @ntd: Actual number of transfer descriptors in a list
* @qtd_list: List of QTDs for this QH
* @channel: Host channel currently processing transfers for this QH
@@ -314,13 +313,14 @@ struct dwc2_hs_transfer_time {
* descriptor and indicates original XferSize value for the
* descriptor
* @unreserve_timer: Timer for releasing periodic reservation.
- * @dwc2_tt: Pointer to our tt info (or NULL if no tt).
+ * @dwc_tt: Pointer to our tt info (or NULL if no tt).
* @ttport: Port number within our tt.
* @tt_buffer_dirty True if clear_tt_buffer_complete is pending
* @unreserve_pending: True if we planned to unreserve but haven't yet.
* @schedule_low_speed: True if we have a low/full speed component (either the
* host is in low/full speed mode or do_split).
*
+ * @tt_buffer_dirty: True if EP's TT buffer is not clean.
* A Queue Head (QH) holds the static characteristics of an endpoint and
* maintains a list of transfers (QTDs) for that endpoint. A QH structure may
* be entered in either the non-periodic or periodic schedule.
@@ -392,6 +392,10 @@ struct dwc2_qh {
* @urb: URB for this transfer
* @qh: Queue head for this QTD
* @qtd_list_entry: For linking to the QH's list of QTDs
+ * @isoc_td_first: Index of first activated isochronous transfer
+ * descriptor in Descriptor DMA mode
+ * @isoc_td_last: Index of last activated isochronous transfer
+ * descriptor in Descriptor DMA mode
*
* A Queue Transfer Descriptor (QTD) holds the state of a bulk, control,
* interrupt, or isochronous transfer. A single QTD is created for each URB
diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c
index 28c8898b3b66..74f11c823f79 100644
--- a/drivers/usb/dwc2/hcd_ddma.c
+++ b/drivers/usb/dwc2/hcd_ddma.c
@@ -332,6 +332,7 @@ static void dwc2_release_channel_ddma(struct dwc2_hsotg *hsotg,
*
* @hsotg: The HCD state structure for the DWC OTG controller
* @qh: The QH to init
+ * @mem_flags: Indicates the type of memory allocation
*
* Return: 0 if successful, negative error code otherwise
*
diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c
index 916d991b96b8..2802dbf38e53 100644
--- a/drivers/usb/dwc2/hcd_intr.c
+++ b/drivers/usb/dwc2/hcd_intr.c
@@ -472,6 +472,12 @@ static u32 dwc2_get_actual_xfer_length(struct dwc2_hsotg *hsotg,
* of the URB based on the number of bytes transferred via the host channel.
* Sets the URB status if the data transfer is finished.
*
+ * @hsotg: Programming view of the DWC_otg controller
+ * @chan: Programming view of host channel
+ * @chnum: Channel number
+ * @urb: Processing URB
+ * @qtd: Queue transfer descriptor
+ *
* Return: 1 if the data transfer specified by the URB is completely finished,
* 0 otherwise
*/
@@ -560,6 +566,12 @@ void dwc2_hcd_save_data_toggle(struct dwc2_hsotg *hsotg,
* halt_status. Completes the Isochronous URB if all the URB frames have been
* completed.
*
+ * @hsotg: Programming view of the DWC_otg controller
+ * @chan: Programming view of host channel
+ * @chnum: Channel number
+ * @halt_status: Reason for halting a host channel
+ * @qtd: Queue transfer descriptor
+ *
* Return: DWC2_HC_XFER_COMPLETE if there are more frames remaining to be
* transferred in the URB. Otherwise return DWC2_HC_XFER_URB_COMPLETE.
*/
diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c
index fcd1676c7f0b..b44c498c17e8 100644
--- a/drivers/usb/dwc2/hcd_queue.c
+++ b/drivers/usb/dwc2/hcd_queue.c
@@ -676,6 +676,7 @@ static int dwc2_hs_pmap_schedule(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
*
* @hsotg: The HCD state structure for the DWC OTG controller.
* @qh: QH for the periodic transfer.
+ * @index: Transfer index
*/
static void dwc2_hs_pmap_unschedule(struct dwc2_hsotg *hsotg,
struct dwc2_qh *qh, int index)
@@ -1273,7 +1274,7 @@ static void dwc2_do_unreserve(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
* release the reservation. This worker is called after the appropriate
* delay.
*
- * @work: Pointer to a qh unreserve_work.
+ * @t: Address to a qh unreserve_work.
*/
static void dwc2_unreserve_timer_fn(struct timer_list *t)
{
@@ -1578,7 +1579,7 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
* @hsotg: The HCD state structure for the DWC OTG controller
* @urb: Holds the information about the device/endpoint needed
* to initialize the QH
- * @atomic_alloc: Flag to do atomic allocation if needed
+ * @mem_flags: Flags for allocating memory.
*
* Return: Pointer to the newly allocated QH, or NULL on error
*/
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 9c3ff66a2eb8..462ae0c9faa3 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -255,6 +255,9 @@ static void dwc2_set_param_tx_fifo_sizes(struct dwc2_hsotg *hsotg)
/**
* dwc2_set_default_params() - Set all core parameters to their
* auto-detected default values.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
*/
static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
{
@@ -318,6 +321,8 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
/**
* dwc2_get_device_properties() - Read in device properties.
*
+ * @hsotg: Programming view of the DWC_otg controller
+ *
* Read in the device properties and adjust core parameters if needed.
*/
static void dwc2_get_device_properties(struct dwc2_hsotg *hsotg)
@@ -619,6 +624,9 @@ static void dwc2_get_dev_hwparams(struct dwc2_hsotg *hsotg)
/**
* During device initialization, read various hardware configuration
* registers and interpret the contents.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
*/
int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
{
diff --git a/drivers/usb/dwc2/pci.c b/drivers/usb/dwc2/pci.c
index 3ecc951a1aea..e09bb18fc023 100644
--- a/drivers/usb/dwc2/pci.c
+++ b/drivers/usb/dwc2/pci.c
@@ -77,6 +77,12 @@ static int dwc2_pci_quirks(struct pci_dev *pdev, struct platform_device *dwc2)
return 0;
}
+/**
+ * dwc2_pci_probe() - Provides the cleanup entry points for the DWC_otg PCI
+ * driver
+ *
+ * @pci: The programming view of DWC_otg PCI
+ */
static void dwc2_pci_remove(struct pci_dev *pci)
{
struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
--
2.11.0
--
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