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Date: Fri, 10 Nov 2023 13:35:00 -0600
From: Mario Limonciello <mario.limonciello@....com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
Herbert Xu <herbert@...dor.apana.org.au>,
Wolfram Sang <wsa@...nel.org>, linux-i2c@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Mika Westerberg <mika.westerberg@...ux.intel.com>,
Jan Dabros <jsd@...ihalf.com>,
Andi Shyti <andi.shyti@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Hans de Goede <hdegoede@...hat.com>
Subject: Re: [PATCH v3 25/25] i2c: designware: Fix spelling and other issues
in the comments
On 11/10/2023 12:11, Andy Shevchenko wrote:
> Fix spelling and other issues, such as kernel-doc reported about,
> in the comments. While at it, fix some indentation issues as well.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
> ---
> drivers/i2c/busses/i2c-designware-amdpsp.c | 10 +++++-----
> drivers/i2c/busses/i2c-designware-common.c | 8 +++++---
> drivers/i2c/busses/i2c-designware-core.h | 10 +++++-----
> drivers/i2c/busses/i2c-designware-master.c | 15 +++++++++------
> drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++--
> drivers/i2c/busses/i2c-designware-slave.c | 6 ++++--
> 6 files changed, 30 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-designware-amdpsp.c b/drivers/i2c/busses/i2c-designware-amdpsp.c
> index 63454b06e5da..8fbd2a10c31a 100644
> --- a/drivers/i2c/busses/i2c-designware-amdpsp.c
> +++ b/drivers/i2c/busses/i2c-designware-amdpsp.c
> @@ -155,7 +155,7 @@ static void psp_release_i2c_bus_deferred(struct work_struct *work)
>
> /*
> * If there is any pending transaction, cannot release the bus here.
> - * psp_release_i2c_bus will take care of this later.
> + * psp_release_i2c_bus() will take care of this later.
> */
> if (psp_i2c_access_count)
> goto cleanup;
> @@ -210,12 +210,12 @@ static void psp_release_i2c_bus(void)
> {
> mutex_lock(&psp_i2c_access_mutex);
>
> - /* Return early if mailbox was malfunctional */
> + /* Return early if mailbox was malfunctioned */
> if (psp_i2c_mbox_fail)
> goto cleanup;
>
> /*
> - * If we are last owner of PSP semaphore, need to release aribtration
> + * If we are last owner of PSP semaphore, need to release arbitration
> * via mailbox.
> */
> psp_i2c_access_count--;
> @@ -235,9 +235,9 @@ static void psp_release_i2c_bus(void)
>
> /*
> * Locking methods are based on the default implementation from
> - * drivers/i2c/i2c-core-base.c, but with psp acquire and release operations
> + * drivers/i2c/i2c-core-base.c, but with PSP acquire and release operations
> * added. With this in place we can ensure that i2c clients on the bus shared
> - * with psp are able to lock HW access to the bus for arbitrary number of
> + * with PSP are able to lock HW access to the bus for arbitrary number of
> * operations - that is e.g. write-wait-read.
> */
> static void i2c_adapter_dw_psp_lock_bus(struct i2c_adapter *adapter,
> diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c
> index 5e28f50e4ce6..91bdedbe1a02 100644
> --- a/drivers/i2c/busses/i2c-designware-common.c
> +++ b/drivers/i2c/busses/i2c-designware-common.c
> @@ -127,6 +127,8 @@ static int dw_reg_write_word(void *context, unsigned int reg, unsigned int val)
> * Autodetects needed register access mode and creates the regmap with
> * corresponding read/write callbacks. This must be called before doing any
> * other register access.
> + *
> + * Return: 0 on success, or negative errno otherwise.
> */
> int i2c_dw_init_regmap(struct dw_i2c_dev *dev)
> {
> @@ -174,7 +176,7 @@ int i2c_dw_init_regmap(struct dw_i2c_dev *dev)
> /*
> * Note we'll check the return value of the regmap IO accessors only
> * at the probe stage. The rest of the code won't do this because
> - * basically we have MMIO-based regmap so non of the read/write methods
> + * basically we have MMIO-based regmap, so none of the read/write methods
> * can fail.
> */
> dev->map = devm_regmap_init(dev->dev, NULL, dev, &map_cfg);
> @@ -336,7 +338,7 @@ static u32 i2c_dw_acpi_round_bus_speed(struct device *device)
>
> acpi_speed = i2c_acpi_find_bus_speed(device);
> /*
> - * Some DSTDs use a non standard speed, round down to the lowest
> + * Some DSDTs use a non standard speed, round down to the lowest
> * standard speed.
> */
> for (i = 0; i < ARRAY_SIZE(supported_speeds); i++) {
> @@ -532,7 +534,7 @@ void __i2c_dw_disable(struct dw_i2c_dev *dev)
>
> /*
> * Wait 10 times the signaling period of the highest I2C
> - * transfer supported by the driver (for 400KHz this is
> + * transfer supported by the driver (for 400kHz this is
> * 25us) as described in the DesignWare I2C databook.
> */
> usleep_range(25, 250);
> diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
> index 7479cb3a450d..5405d4da2b7d 100644
> --- a/drivers/i2c/busses/i2c-designware-core.h
> +++ b/drivers/i2c/busses/i2c-designware-core.h
> @@ -141,10 +141,10 @@
> #define DW_IC_SLAVE 1
>
> /*
> - * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register
> + * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register.
> *
> - * Only expected abort codes are listed here
> - * refer to the datasheet for the full list
> + * Only expected abort codes are listed here,
> + * refer to the datasheet for the full list.
> */
> #define ABRT_7B_ADDR_NOACK 0
> #define ABRT_10ADDR1_NOACK 1
> @@ -201,7 +201,7 @@ struct i2c_dw_semaphore_callbacks;
> * @rst: optional reset for the controller
> * @slave: represent an I2C slave device
> * @get_clk_rate_khz: callback to retrieve IP specific bus speed
> - * @cmd_err: run time hadware error code
> + * @cmd_err: run time hardware error code
> * @msgs: points to an array of messages currently being transferred
> * @msgs_num: the number of elements in msgs
> * @msg_write_idx: the element index of the current tx message in the msgs array
> @@ -236,7 +236,7 @@ struct i2c_dw_semaphore_callbacks;
> * @release_lock: function to release a hardware lock on the bus
> * @semaphore_idx: Index of table with semaphore type attached to the bus. It's
> * -1 if there is no semaphore.
> - * @shared_with_punit: true if this bus is shared with the SoCs PUNIT
> + * @shared_with_punit: true if this bus is shared with the SoC's PUNIT
> * @init: function to initialize the I2C hardware
> * @set_sda_hold_time: callback to retrieve IP specific SDA hold timing
> * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE
> diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
> index bd3c8db521de..4ef4160db01f 100644
> --- a/drivers/i2c/busses/i2c-designware-master.c
> +++ b/drivers/i2c/busses/i2c-designware-master.c
> @@ -168,12 +168,14 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev)
> }
>
> /**
> - * i2c_dw_init_master() - Initialize the designware I2C master hardware
> + * i2c_dw_init_master() - Initialize the DesignWare I2C master hardware
> * @dev: device private data
> *
> * This functions configures and enables the I2C master.
> * This function is called during I2C init function, and in case of timeout at
> * run time.
> + *
> + * Return: 0 on success, or negative errno otherwise.
> */
> static int i2c_dw_init_master(struct dw_i2c_dev *dev)
> {
> @@ -314,7 +316,7 @@ static int amd_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msgs,
> /*
> * Initiate the i2c read/write transaction of buffer length,
> * and poll for bus busy status. For the last message transfer,
> - * update the command with stopbit enable.
> + * update the command with stop bit enable.
> */
> for (msg_itr_lmt = buf_len; msg_itr_lmt > 0; msg_itr_lmt--) {
> if (msg_wrt_idx == num_msgs - 1 && msg_itr_lmt == 1)
> @@ -421,7 +423,7 @@ static int txgbe_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msg
>
> /*
> * Initiate (and continue) low level master read/write transaction.
> - * This function is only called from i2c_dw_isr, and pumping i2c_msg
> + * This function is only called from i2c_dw_isr(), and pumping i2c_msg
> * messages into the tx buffer. Even if the size of i2c_msg data is
> * longer than the size of the tx buffer, it handles everything.
> */
> @@ -459,7 +461,8 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
> buf = msgs[dev->msg_write_idx].buf;
> buf_len = msgs[dev->msg_write_idx].len;
>
> - /* If both IC_EMPTYFIFO_HOLD_MASTER_EN and
> + /*
> + * If both IC_EMPTYFIFO_HOLD_MASTER_EN and
> * IC_RESTART_EN are set, we must manually
> * set restart bit between messages.
> */
> @@ -949,7 +952,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
> rinfo->unprepare_recovery = i2c_dw_unprepare_recovery;
> adap->bus_recovery_info = rinfo;
>
> - dev_info(dev->dev, "running with gpio recovery mode! scl%s",
> + dev_info(dev->dev, "running with GPIO recovery mode! scl%s",
> rinfo->sda_gpiod ? ",sda" : "");
>
> return 0;
> @@ -1053,7 +1056,7 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev)
> ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr, irq_flags,
> dev_name(dev->dev), dev);
> if (ret) {
> - dev_err(dev->dev, "failure requesting irq %i: %d\n",
> + dev_err(dev->dev, "failure requesting IRQ %i: %d\n",
> dev->irq, ret);
> return ret;
> }
> diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> index 02dc1d1001f2..fa9c0c56b11e 100644
> --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> @@ -72,7 +72,7 @@ static int bt1_i2c_write(void *context, unsigned int reg, unsigned int val)
> return ret;
>
> return regmap_write(dev->sysmap, BT1_I2C_CTL,
> - BT1_I2C_CTL_GO | BT1_I2C_CTL_WR | (reg & BT1_I2C_CTL_ADDR_MASK));
> + BT1_I2C_CTL_GO | BT1_I2C_CTL_WR | (reg & BT1_I2C_CTL_ADDR_MASK));
> }
>
> static struct regmap_config bt1_i2c_cfg = {
> @@ -304,7 +304,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
> adap = &dev->adapter;
> adap->owner = THIS_MODULE;
> adap->class = dmi_check_system(dw_i2c_hwmon_class_dmi) ?
> - I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED;
> + I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED;
> adap->nr = -1;
>
> if (dev->flags & ACCESS_NO_IRQ_SUSPEND)
> diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c
> index 5abd5ec41954..21d80fe81cfe 100644
> --- a/drivers/i2c/busses/i2c-designware-slave.c
> +++ b/drivers/i2c/busses/i2c-designware-slave.c
> @@ -32,12 +32,14 @@ static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev)
> }
>
> /**
> - * i2c_dw_init_slave() - Initialize the designware i2c slave hardware
> + * i2c_dw_init_slave() - Initialize the DesignWare i2c slave hardware
> * @dev: device private data
> *
> * This function configures and enables the I2C in slave mode.
> * This function is called during I2C init function, and in case of timeout at
> * run time.
> + *
> + * Return: 0 on success, or negative errno otherwise.
> */
> static int i2c_dw_init_slave(struct dw_i2c_dev *dev)
> {
> @@ -264,7 +266,7 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev)
> ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr_slave,
> IRQF_SHARED, dev_name(dev->dev), dev);
> if (ret) {
> - dev_err(dev->dev, "failure requesting irq %i: %d\n",
> + dev_err(dev->dev, "failure requesting IRQ %i: %d\n",
> dev->irq, ret);
> return ret;
> }
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