Re: [PATCH v2] i2c: iproc: Refactor prototype and remove redundant error checks

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On Tue, Jan 21, 2025 at 12:49 AM Wentao Liang <vulab@xxxxxxxxxxx> wrote:
The bcm_iproc_i2c_init() always returns 0. As a result, there
is no need to check its return value or handle errors.

This patch changes the prototype of bcm_iproc_i2c_init() to
return void and removes the redundant error handling code after
calls to bcm_iproc_i2c_init() in both the bcm_iproc_i2c_probe()
and bcm_iproc_i2c_resume().

Signed-off-by: Wentao Liang <vulab@xxxxxxxxxxx>
---
 drivers/i2c/busses/i2c-bcm-iproc.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/i2c/busses/i2c-bcm-iproc.c b/drivers/i2c/busses/i2c-bcm-iproc.c
index 15b632a146e1..59cbf8b3b025 100644
--- a/drivers/i2c/busses/i2c-bcm-iproc.c
+++ b/drivers/i2c/busses/i2c-bcm-iproc.c
@@ -678,7 +678,7 @@ static irqreturn_t bcm_iproc_i2c_isr(int irq, void *data)
        return IRQ_HANDLED;
 }

-static int bcm_iproc_i2c_init(struct bcm_iproc_i2c_dev *iproc_i2c)
+static void bcm_iproc_i2c_init(struct bcm_iproc_i2c_dev *iproc_i2c)
 {
        u32 val;

@@ -706,8 +706,6 @@ static int bcm_iproc_i2c_init(struct bcm_iproc_i2c_dev *iproc_i2c)

        /* clear all pending interrupts */
        iproc_i2c_wr_reg(iproc_i2c, IS_OFFSET, 0xffffffff);
-
-       return 0;
 }

 static void bcm_iproc_i2c_enable_disable(struct bcm_iproc_i2c_dev *iproc_i2c,
@@ -1081,9 +1079,7 @@ static int bcm_iproc_i2c_probe(struct platform_device *pdev)
                bcm_iproc_algo.unreg_slave = NULL;
        }

-       ret = bcm_iproc_i2c_init(iproc_i2c);
-       if (ret)
-               return ret;
+       bcm_iproc_i2c_init(iproc_i2c);

        ret = bcm_iproc_i2c_cfg_speed(iproc_i2c);
        if (ret)
@@ -1169,9 +1165,7 @@ static int bcm_iproc_i2c_resume(struct device *dev)
         * Power domain could have been shut off completely in system deep
         * sleep, so re-initialize the block here
         */
-       ret = bcm_iproc_i2c_init(iproc_i2c);
-       if (ret)
-               return ret;
+       bcm_iproc_i2c_init(iproc_i2c);

        /* configure to the desired bus speed */
        val = iproc_i2c_rd_reg(iproc_i2c, TIM_CFG_OFFSET);
--
2.42.0.windows.2

Looks good to me. Thanks!
Acked-by: Ray Jui <ray.jui@xxxxxxxxxxxx

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