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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the calls to clk_disable_unprepare(). While at it, remove the goto label "err_clk:", and use its return value=20 to return the error code. Signed-off-by: Rong Qianfeng --- drivers/i2c/busses/i2c-emev2.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c index 557409410445..20efe0b0cb85 100644 --- a/drivers/i2c/busses/i2c-emev2.c +++ b/drivers/i2c/busses/i2c-emev2.c @@ -373,14 +373,10 @@ static int em_i2c_probe(struct platform_device *pdev) =20 strscpy(priv->adap.name, "EMEV2 I2C", sizeof(priv->adap.name)); =20 - priv->sclk =3D devm_clk_get(&pdev->dev, "sclk"); + priv->sclk =3D devm_clk_get_enabled(&pdev->dev, "sclk"); if (IS_ERR(priv->sclk)) return PTR_ERR(priv->sclk); =20 - ret =3D clk_prepare_enable(priv->sclk); - if (ret) - return ret; - priv->adap.timeout =3D msecs_to_jiffies(100); priv->adap.retries =3D 5; priv->adap.dev.parent =3D &pdev->dev; @@ -397,26 +393,22 @@ static int em_i2c_probe(struct platform_device *pdev) =20 ret =3D platform_get_irq(pdev, 0); if (ret < 0) - goto err_clk; + return ret; priv->irq =3D ret; ret =3D devm_request_irq(&pdev->dev, priv->irq, em_i2c_irq_handler, 0, "em_i2c", priv); 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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the calls to clk_disable_unprepare(). While at it, remove the goto label "err:", and use its return value to=20 return the error code. Signed-off-by: Rong Qianfeng Acked-by: Paul Cercueil --- drivers/i2c/busses/i2c-jz4780.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz478= 0.c index 4aafdfab6305..f5362c5dfb50 100644 --- a/drivers/i2c/busses/i2c-jz4780.c +++ b/drivers/i2c/busses/i2c-jz4780.c @@ -792,26 +792,22 @@ static int jz4780_i2c_probe(struct platform_device *p= dev) =20 platform_set_drvdata(pdev, i2c); =20 - i2c->clk =3D devm_clk_get(&pdev->dev, NULL); + i2c->clk =3D devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(i2c->clk)) return PTR_ERR(i2c->clk); =20 - ret =3D clk_prepare_enable(i2c->clk); - if (ret) - return ret; - ret =3D of_property_read_u32(pdev->dev.of_node, "clock-frequency", &clk_freq); if (ret) { dev_err(&pdev->dev, "clock-frequency not specified in DT\n"); - goto err; + return ret; } =20 i2c->speed =3D clk_freq / 1000; if (i2c->speed =3D=3D 0) { ret =3D -EINVAL; dev_err(&pdev->dev, "clock-frequency minimum is 1000\n"); - goto err; + return ret; } jz4780_i2c_set_speed(i2c); =20 @@ -827,29 +823,24 @@ static int jz4780_i2c_probe(struct platform_device *p= dev) =20 ret =3D platform_get_irq(pdev, 0); if (ret < 0) - goto err; + return ret; i2c->irq =3D ret; ret =3D devm_request_irq(&pdev->dev, i2c->irq, jz4780_i2c_irq, 0, dev_name(&pdev->dev), i2c); if (ret) - goto err; + return ret; =20 ret =3D i2c_add_adapter(&i2c->adap); if (ret < 0) - goto err; + return ret; =20 return 0; - -err: - clk_disable_unprepare(i2c->clk); - return ret; } =20 static void jz4780_i2c_remove(struct platform_device *pdev) { struct jz4780_i2c *i2c =3D platform_get_drvdata(pdev); =20 - clk_disable_unprepare(i2c->clk); i2c_del_adapter(&i2c->adap); } =20 --=20 2.39.0