Re: [PATCH V5] phy: freescale: fsl-samsung-hdmi: fix build error in fsl_samsung_hdmi_phy_configure_pll_lock_det

From: Vinod Koul
Date: Tue Feb 11 2025 - 05:47:53 EST


On 11-02-25, 10:10, Pei Xiao wrote:
>
> 在 2025/2/11 01:02, Vinod Koul 写道:
> > On 17-01-25, 10:15, Pei Xiao wrote:
> >> 在 2025/1/17 09:59, Adam Ford 写道:
> >>> On Mon, Jan 13, 2025 at 2:41 AM <xiaopeitux@xxxxxxxxxxx> wrote:
> >>>> From: Pei Xiao <xiaopei01@xxxxxxxxxx>
> >>>>
> >>>> FIELD_PREP() checks that a value fits into the available bitfield,
> >>>> but the index div equals to 4,is out of range.
> >>>>
> >>>> which gcc complains about:
> >>>> In function ‘fsl_samsung_hdmi_phy_configure_pll_lock_det’,
> >>>> inlined from ‘fsl_samsung_hdmi_phy_configure’ at
> >>>> drivers/phy/freescale/phy-fsl-samsung-hdmi.c :470:2:
> >>>> ././include/linux/compiler_types.h:542:38: error: call to ‘__compiletime_assert_538’
> >>>> declared with attribute error: FIELD_PREP: value too large for the field
> >>>> 542 | _compiletime_assert(condition, msg, __compiletime_assert_,
> >>>> __COUNTER__)
> >>>> | ^
> >>>> ././include/linux/compiler_types.h:523:4: note: in definition of
> >>>> macro ‘__compiletime_assert’ 523 | prefix ## suffix();
> >>>> | ^~~~~~
> >>>> ././include/linux/compiler_types.h:542:2: note: in expansion of macro
> >>>> ‘_compiletime_assert’
> >>>> 542 | _compiletime_assert(condition, msg, __compiletime_assert_,
> >>>> __COUNTER__)
> >>>>
> >>>> REG12_CK_DIV_MASK only two bit, limit div to range 0~3,
> >>>> so build error will fix.
> >>>>
> >>> LGTM.
> >>>
> >>> Reviewed-by: Adam Ford <aford173@xxxxxxxxx>
> >> loop Vkoul for email address was written incorrectly.
> > Thanks for looping in!
> >
> > Change looks good to me. Can you please revise the patch title. A patch
> > title should describe the change we are making. Fix build error is not
> > an apt title
>
> there so many  "Fix build error" : https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/log/?qt=grep&q=fix+build+error
>
> what we should revise?
>
> Like:*phy: freescale: fsl-samsung-hdmi: Limit PLL lock detection clock divider to valid range*

That sounds better

--
~Vinod