[PATCH v2 08/14] spi: spi-pl022: Provide missing struct attribute/function param docs

From: Lee Jones
Date: Fri Jul 17 2020 - 09:54:50 EST


Also demote non-worthy kerneldoc headers to standard comment blocks.

Fixes the following W=1 kernel build warning(s):

drivers/spi/spi-pl022.c:304: warning: cannot understand function prototype: 'enum ssp_writing '
drivers/spi/spi-pl022.c:330: warning: Function parameter or member 'loopback' not described in 'vendor_data'
drivers/spi/spi-pl022.c:398: warning: Function parameter or member 'rx_lev_trig' not described in 'pl022'
drivers/spi/spi-pl022.c:398: warning: Function parameter or member 'tx_lev_trig' not described in 'pl022'
drivers/spi/spi-pl022.c:398: warning: Function parameter or member 'dma_running' not described in 'pl022'
drivers/spi/spi-pl022.c:670: warning: Function parameter or member 'pl022' not described in 'readwriter'
drivers/spi/spi-pl022.c:1250: warning: Function parameter or member 'irq' not described in 'pl022_interrupt_handler'
drivers/spi/spi-pl022.c:1250: warning: Function parameter or member 'dev_id' not described in 'pl022_interrupt_handler'
drivers/spi/spi-pl022.c:1343: warning: Function parameter or member 'pl022' not described in 'set_up_next_transfer'
drivers/spi/spi-pl022.c:1343: warning: Function parameter or member 'transfer' not described in 'set_up_next_transfer'

Cc: Sachin Verma <sachin.verma@xxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
drivers/spi/spi-pl022.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 66028ebbc336d..d1776fea287e5 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -298,7 +298,7 @@ enum ssp_reading {
READING_U32
};

-/**
+/*
* The type of writing going on on this chip
*/
enum ssp_writing {
@@ -317,6 +317,7 @@ enum ssp_writing {
* @extended_cr: 32 bit wide control register 0 with extra
* features and extra features in CR1 as found in the ST variants
* @pl023: supports a subset of the ST extensions called "PL023"
+ * @loopback: supports loopback mode
* @internal_cs_ctrl: supports chip select control register
*/
struct vendor_data {
@@ -353,11 +354,14 @@ struct vendor_data {
* @read: the type of read currently going on
* @write: the type of write currently going on
* @exp_fifo_level: expected FIFO level
+ * @rx_lev_trig: receive FIFO watermark level which triggers IRQ
+ * @tx_lev_trig: transmit FIFO watermark level which triggers IRQ
* @dma_rx_channel: optional channel for RX DMA
* @dma_tx_channel: optional channel for TX DMA
* @sgt_rx: scattertable for the RX transfer
* @sgt_tx: scattertable for the TX transfer
* @dummypage: a dummy page used for driving data on the bus with DMA
+ * @dma_running: indicates whether DMA is in operation
* @cur_cs: current chip select (gpio)
* @chipselects: list of chipselects (gpios)
*/
@@ -662,7 +666,7 @@ static void load_ssp_default_config(struct pl022 *pl022)
writew(CLEAR_ALL_INTERRUPTS, SSP_ICR(pl022->virtbase));
}

-/**
+/*
* This will write to TX and read from RX according to the parameters
* set in pl022.
*/
@@ -1237,6 +1241,8 @@ static inline void pl022_dma_remove(struct pl022 *pl022)

/**
* pl022_interrupt_handler - Interrupt handler for SSP controller
+ * @irq: IRQ number
+ * @dev_id: Local device data
*
* This function handles interrupts generated for an interrupt based transfer.
* If a receive overrun (ROR) interrupt is there then we disable SSP, flag the
@@ -1334,7 +1340,7 @@ static irqreturn_t pl022_interrupt_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}

-/**
+/*
* This sets up the pointers to memory for the next message to
* send out on the SPI bus.
*/
--
2.25.1