[PATCH AUTOSEL 5.15 07/12] i2c: rk3x: fix a bunch of kernel-doc warnings

Sasha Levin
2023-01-31T15:03:02Z

From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit 0582d984793d30442da88fe458674502bad1ad29 ]

Fix multiple W=1 kernel-doc warnings in i2c-rk3x.c:

drivers/i2c/busses/i2c-rk3x.c:83: warning: missing initial short description on line:
* struct i2c_spec_values:
drivers/i2c/busses/i2c-rk3x.c:139: warning: missing initial short description on line:
* struct rk3x_i2c_calced_timings:
drivers/i2c/busses/i2c-rk3x.c:162: warning: missing initial short description on line:
* struct rk3x_i2c_soc_data:
drivers/i2c/busses/i2c-rk3x.c:242: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Generate a START condition, which triggers a REG_INT_START interrupt.
drivers/i2c/busses/i2c-rk3x.c:261: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Generate a STOP condition, which triggers a REG_INT_STOP interrupt.
drivers/i2c/busses/i2c-rk3x.c:304: warning: expecting prototype for Setup a read according to i2c(). Prototype was for rk3x_i2c_prepare_read() instead
drivers/i2c/busses/i2c-rk3x.c:335: warning: expecting prototype for Fill the transmit buffer with data from i2c(). Prototype was for rk3x_i2c_fill_transmit_buf() instead
drivers/i2c/busses/i2c-rk3x.c:535: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Get timing values of I2C specification
drivers/i2c/busses/i2c-rk3x.c:552: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Calculate divider values for desired SCL frequency
drivers/i2c/busses/i2c-rk3x.c:713: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Calculate timing values for desired SCL frequency
drivers/i2c/busses/i2c-rk3x.c:963: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Setup I2C registers for an I2C operation specified by msgs, num.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/i2c/busses/i2c-rk3x.c | 44 +++++++++++++++++------------------
1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c
index 02ddb237f69a..13c14eb175e9 100644
--- a/drivers/i2c/busses/i2c-rk3x.c
+++ b/drivers/i2c/busses/i2c-rk3x.c
@@ -80,7 +80,7 @@ enum {
#define DEFAULT_SCL_RATE (100 * 1000) /* Hz */

/**
- * struct i2c_spec_values:
+ * struct i2c_spec_values - I2C specification values for various modes
* @min_hold_start_ns: min hold time (repeated) START condition
* @min_low_ns: min LOW period of the SCL clock
* @min_high_ns: min HIGH period of the SCL cloc
@@ -136,7 +136,7 @@ static const struct i2c_spec_values fast_mode_plus_spec = {
};

/**
- * struct rk3x_i2c_calced_timings:
+ * struct rk3x_i2c_calced_timings - calculated V1 timings
* @div_low: Divider output for low
* @div_high: Divider output for high
* @tuning: Used to adjust setup/hold data time,
@@ -159,7 +159,7 @@ enum rk3x_i2c_state {
};

/**
- * struct rk3x_i2c_soc_data:
+ * struct rk3x_i2c_soc_data - SOC-specific data
* @grf_offset: offset inside the grf regmap for setting the i2c type
* @calc_timings: Callback function for i2c timing information calculated
*/
@@ -239,7 +239,8 @@ static inline void rk3x_i2c_clean_ipd(struct rk3x_i2c *i2c)
}

/**
- * Generate a START condition, which triggers a REG_INT_START interrupt.
+ * rk3x_i2c_start - Generate a START condition, which triggers a REG_INT_START interrupt.
+ * @i2c: target controller data
*/
static void rk3x_i2c_start(struct rk3x_i2c *i2c)
{
@@ -258,8 +259,8 @@ static void rk3x_i2c_start(struct rk3x_i2c *i2c)
}

/**
- * Generate a STOP condition, which triggers a REG_INT_STOP interrupt.
- *
+ * rk3x_i2c_stop - Generate a STOP condition, which triggers a REG_INT_STOP interrupt.
+ * @i2c: target controller data
* @error: Error code to return in rk3x_i2c_xfer
*/
static void rk3x_i2c_stop(struct rk3x_i2c *i2c, int error)
@@ -298,7 +299,8 @@ static void rk3x_i2c_stop(struct rk3x_i2c *i2c, int error)
}

/**
- * Setup a read according to i2c->msg
+ * rk3x_i2c_prepare_read - Setup a read according to i2c->msg
+ * @i2c: target controller data
*/
static void rk3x_i2c_prepare_read(struct rk3x_i2c *i2c)
{
@@ -329,7 +331,8 @@ static void rk3x_i2c_prepare_read(struct rk3x_i2c *i2c)
}

/**
- * Fill the transmit buffer with data from i2c->msg
+ * rk3x_i2c_fill_transmit_buf - Fill the transmit buffer with data from i2c->msg
+ * @i2c: target controller data
*/
static void rk3x_i2c_fill_transmit_buf(struct rk3x_i2c *i2c)
{
@@ -532,11 +535,10 @@ static irqreturn_t rk3x_i2c_irq(int irqno, void *dev_id)
}

/**
- * Get timing values of I2C specification
- *
+ * rk3x_i2c_get_spec - Get timing values of I2C specification
* @speed: Desired SCL frequency
*
- * Returns: Matched i2c spec values.
+ * Return: Matched i2c_spec_values.
*/
static const struct i2c_spec_values *rk3x_i2c_get_spec(unsigned int speed)
{
@@ -549,13 +551,12 @@ static const struct i2c_spec_values *rk3x_i2c_get_spec(unsigned int speed)
}

/**
- * Calculate divider values for desired SCL frequency
- *
+ * rk3x_i2c_v0_calc_timings - Calculate divider values for desired SCL frequency
* @clk_rate: I2C input clock rate
* @t: Known I2C timing information
* @t_calc: Caculated rk3x private timings that would be written into regs
*
- * Returns: 0 on success, -EINVAL if the goal SCL rate is too slow. In that case
+ * Return: %0 on success, -%EINVAL if the goal SCL rate is too slow. In that case
* a best-effort divider value is returned in divs. If the target rate is
* too high, we silently use the highest possible rate.
*/
@@ -710,13 +711,12 @@ static int rk3x_i2c_v0_calc_timings(unsigned long clk_rate,
}

/**
- * Calculate timing values for desired SCL frequency
- *
+ * rk3x_i2c_v1_calc_timings - Calculate timing values for desired SCL frequency
* @clk_rate: I2C input clock rate
* @t: Known I2C timing information
* @t_calc: Caculated rk3x private timings that would be written into regs
*
- * Returns: 0 on success, -EINVAL if the goal SCL rate is too slow. In that case
+ * Return: %0 on success, -%EINVAL if the goal SCL rate is too slow. In that case
* a best-effort divider value is returned in divs. If the target rate is
* too high, we silently use the highest possible rate.
* The following formulas are v1's method to calculate timings.
@@ -960,14 +960,14 @@ static int rk3x_i2c_clk_notifier_cb(struct notifier_block *nb, unsigned long
}

/**
- * Setup I2C registers for an I2C operation specified by msgs, num.
- *
- * Must be called with i2c->lock held.
- *
+ * rk3x_i2c_setup - Setup I2C registers for an I2C operation specified by msgs, num.
+ * @i2c: target controller data
* @msgs: I2C msgs to process
* @num: Number of msgs
*
- * returns: Number of I2C msgs processed or negative in case of error
+ * Must be called with i2c->lock held.
+ *
+ * Return: Number of I2C msgs processed or negative in case of error
*/
static int rk3x_i2c_setup(struct rk3x_i2c *i2c, struct i2c_msg *msgs, int num)
{
--
2.39.0