linux-kernel - [PATCH v2 1/7] spi: spi-zynqmp-gqspi: Fix kernel-doc warnings

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Message-ID: <20220915120750.1424984-2-amit.kumar-mahapatra@xilinx.com>
Date:   Thu, 15 Sep 2022 17:37:44 +0530
From:   Amit Kumar Mahapatra <amit.kumar-mahapatra@...inx.com>
To:     <broonie@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <git@....com>, <michal.simek@....com>, <linux-spi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <akumarma@....com>,
        Amit Kumar Mahapatra <amit.kumar-mahapatra@...inx.com>
Subject: [PATCH v2 1/7] spi: spi-zynqmp-gqspi: Fix kernel-doc warnings

Document zynqmp_qspi ctrl and op_lock member description. It also adds
return documentation for 'zynqmp_qspi_setuprxdma' and zynqmp_qspi_read_op.

Fixes below kernel-doc warnings-

spi-zynqmp-gqspi.c:178: warning: Function parameter or member 'ctlr' not
described in 'zynqmp_qspi'
spi-zynqmp-gqspi.c:178: warning: Function parameter or member 'op_lock'
not described in 'zynqmp_qspi'

spi-zynqmp-gqspi.c:737: warning: No description found for return value of
'zynqmp_qspi_setuprxdma'
spi-zynqmp-gqspi.c:822: warning: No description found for return value of
'zynqmp_qspi_read_op'

Signed-off-by: Michal Simek <michal.simek@....com>
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@...inx.com>
---
 drivers/spi/spi-zynqmp-gqspi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c
index 2b5afae8ff7f..b07bb97cf874 100644
--- a/drivers/spi/spi-zynqmp-gqspi.c
+++ b/drivers/spi/spi-zynqmp-gqspi.c
@@ -139,6 +139,7 @@ enum mode_type {GQSPI_MODE_IO, GQSPI_MODE_DMA};
 
 /**
  * struct zynqmp_qspi - Defines qspi driver instance
+ * @ctlr:		Pointer to the spi controller information
  * @regs:		Virtual address of the QSPI controller registers
  * @refclk:		Pointer to the peripheral clock
  * @pclk:		Pointer to the APB clock
@@ -155,6 +156,7 @@ enum mode_type {GQSPI_MODE_IO, GQSPI_MODE_DMA};
  * @genfifoentry:	Used for storing the genfifoentry instruction.
  * @mode:		Defines the mode in which QSPI is operating
  * @data_completion:	completion structure
+ * @op_lock:		Operational lock
  */
 struct zynqmp_qspi {
 	struct spi_controller *ctlr;
@@ -732,6 +734,8 @@ static irqreturn_t zynqmp_qspi_irq(int irq, void *dev_id)
 /**
  * zynqmp_qspi_setuprxdma - This function sets up the RX DMA operation
  * @xqspi:	xqspi is a pointer to the GQSPI instance.
+ *
+ * Return:	0 on success; error value otherwise.
  */
 static int zynqmp_qspi_setuprxdma(struct zynqmp_qspi *xqspi)
 {
@@ -816,6 +820,8 @@ static void zynqmp_qspi_write_op(struct zynqmp_qspi *xqspi, u8 tx_nbits,
  * @rx_nbits:	Receive buswidth.
  * @genfifoentry:	genfifoentry is pointer to the variable in which
  *			GENFIFO	mask is returned to calling function
+ *
+ * Return:	0 on success; error value otherwise.
  */
 static int zynqmp_qspi_read_op(struct zynqmp_qspi *xqspi, u8 rx_nbits,
 				u32 genfifoentry)
-- 
2.25.1