Hi,
On Tue, Feb 4, 2020 at 11:31 AM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote:
>
> Some lines are long here. Use a struct dev pointer to shorten lines and
> simplify code. The clk_get() call can fail because of EPROBE_DEFER
> problems too, so just remove the error print message because it isn't
> useful.
>
> Cc: Girish Mahadevan <girishm@xxxxxxxxxxxxxx>
> Cc: Dilip Kota <dkota@xxxxxxxxxxxxxx>
> Cc: Alok Chauhan <alokc@xxxxxxxxxxxxxx>
> Cc: Douglas Anderson <dianders@xxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> ---
> drivers/i2c/busses/i2c-qcom-geni.c | 51 ++++++++++++++----------------
> 1 file changed, 24 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
> index 3e13b54ce3f8..192a8f622f3d 100644
> --- a/drivers/i2c/busses/i2c-qcom-geni.c
> +++ b/drivers/i2c/busses/i2c-qcom-geni.c
> @@ -502,45 +502,42 @@ static int geni_i2c_probe(struct platform_device *pdev)
> struct resource *res;
> u32 proto, tx_depth;
> int ret;
> + struct device *dev = &pdev->dev;
>
> - gi2c = devm_kzalloc(&pdev->dev, sizeof(*gi2c), GFP_KERNEL);
> + gi2c = devm_kzalloc(dev, sizeof(*gi2c), GFP_KERNEL);
> if (!gi2c)
> return -ENOMEM;
>
> - gi2c->se.dev = &pdev->dev;
> - gi2c->se.wrapper = dev_get_drvdata(pdev->dev.parent);
> + gi2c->se.dev = dev;
> + gi2c->se.wrapper = dev_get_drvdata(dev->parent);
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - gi2c->se.base = devm_ioremap_resource(&pdev->dev, res);
> + gi2c->se.base = devm_ioremap_resource(dev, res);
> if (IS_ERR(gi2c->se.base))
> return PTR_ERR(gi2c->se.base);
>
> - gi2c->se.clk = devm_clk_get(&pdev->dev, "se");
> - if (IS_ERR(gi2c->se.clk) && !has_acpi_companion(&pdev->dev)) {
> + gi2c->se.clk = devm_clk_get(dev, "se");
> + if (IS_ERR(gi2c->se.clk) && !has_acpi_companion(dev)) {
> ret = PTR_ERR(gi2c->se.clk);
> - dev_err(&pdev->dev, "Err getting SE Core clk %d\n", ret);
> return ret;
> }
As with my response to your similar SPI change [1], there are cases
where this print could have informed us about other errors besides
EPROBE_DEFER, but it does seem rather unlikely so I'm OK w/ your
change.
I'm wondering why you didn't further clean this up, though. You could
have fully gotten rid of the braces by just doing:
return PTR_ERR(gi2c->se.clk);
> - ret = device_property_read_u32(&pdev->dev, "clock-frequency",
> - &gi2c->clk_freq_out);
> + ret = device_property_read_u32(dev, "clock-frequency",
> + &gi2c->clk_freq_out);
> if (ret) {
> - dev_info(&pdev->dev,
> - "Bus frequency not specified, default to 100kHz.\n");
> + dev_info(dev, "Bus frequency not specified, default to 100kHz.\n");
> gi2c->clk_freq_out = KHZ(100);
> }
>
> - if (has_acpi_companion(&pdev->dev))
> - ACPI_COMPANION_SET(&gi2c->adap.dev, ACPI_COMPANION(&pdev->dev));
> + if (has_acpi_companion(dev))
> + ACPI_COMPANION_SET(&gi2c->adap.dev, ACPI_COMPANION(dev));
>
> gi2c->irq = platform_get_irq(pdev, 0);
> - if (gi2c->irq < 0) {
> - dev_err(&pdev->dev, "IRQ error for i2c-geni\n");
> + if (gi2c->irq < 0)
Commit message doesn't mention removing this print, though checking
platform_get_irq() it looks like it already spams in the case where a
non-EPROBE_DEFER error is returned so I think you're good.
[1] https://lore.kernel.org/r/CAD=FV=U6Yiv5i4PdDFqNhp0STqAvVi_=F_iuKyonx=MsOQFABQ@xxxxxxxxxxxxxx
In any case above things aren't terribly important, so:
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
