From: Lee Jones <lee.jones@linaro.org> To: Dave Gerlach <d-gerlach@ti.com> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, Tony Lindgren <tony@atomide.com>, Mark Brown <broonie@kernel.org>, Keerthy <j-keerthy@ti.com> Subject: Re: [PATCH] mfd: tps65218: Reorder tps65218_regulator_id enum Date: Wed, 7 Mar 2018 13:00:17 +0000 [thread overview] Message-ID: <20180307130017.m6swph3mlupu6g76@dell> (raw) In-Reply-To: <20180216041705.6340-1-d-gerlach@ti.com> On Thu, 15 Feb 2018, Dave Gerlach wrote: > Commit 2dc4940360d4 ("regulator: tps65218: Remove all the compatibles") > changes the probe function of drivers/regulator/tps65218-regulator.c so > that it iterates through all available regulators and assumes that the > regulator IDs are sequential and match the order present in the enum > tps65218_regulator_id. However, for some reason the much older commit > c0ea88b890d6 ("regulator: tps65218: add support for LS3 current > regulator") updated all arrays with LS3 at the end but added it second > to last for the enum. > > Because of this long standing mismatch in order between the > tps65218_regulator_id enum and the regulator_desc array in the tps65218 > regulator driver, the new probe function causes the strobe values to be > associated with the wrong regulator ID. This causes LDO1 to fail to > suspend in tps65218_pmic_set_suspend_disable due to not having anything > probes for its strobe value. Fix the order in the enum so the probe > function works as the update intended. This sounds super fragile. I'm willing to accept this patch if it 'makes stuff work', but we should look into why a dynamically assigned enum is sensitive to ordering. At the very least you should consider providing a comment with working to that effect. > Fixes: 2dc4940360d4 ("regulator: tps65218: Remove all the compatibles") > Signed-off-by: Dave Gerlach <d-gerlach@ti.com> > --- > include/linux/mfd/tps65218.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Applied, thanks. -- Lee Jones Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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From: lee.jones@linaro.org (Lee Jones) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] mfd: tps65218: Reorder tps65218_regulator_id enum Date: Wed, 7 Mar 2018 13:00:17 +0000 [thread overview] Message-ID: <20180307130017.m6swph3mlupu6g76@dell> (raw) In-Reply-To: <20180216041705.6340-1-d-gerlach@ti.com> On Thu, 15 Feb 2018, Dave Gerlach wrote: > Commit 2dc4940360d4 ("regulator: tps65218: Remove all the compatibles") > changes the probe function of drivers/regulator/tps65218-regulator.c so > that it iterates through all available regulators and assumes that the > regulator IDs are sequential and match the order present in the enum > tps65218_regulator_id. However, for some reason the much older commit > c0ea88b890d6 ("regulator: tps65218: add support for LS3 current > regulator") updated all arrays with LS3 at the end but added it second > to last for the enum. > > Because of this long standing mismatch in order between the > tps65218_regulator_id enum and the regulator_desc array in the tps65218 > regulator driver, the new probe function causes the strobe values to be > associated with the wrong regulator ID. This causes LDO1 to fail to > suspend in tps65218_pmic_set_suspend_disable due to not having anything > probes for its strobe value. Fix the order in the enum so the probe > function works as the update intended. This sounds super fragile. I'm willing to accept this patch if it 'makes stuff work', but we should look into why a dynamically assigned enum is sensitive to ordering. At the very least you should consider providing a comment with working to that effect. > Fixes: 2dc4940360d4 ("regulator: tps65218: Remove all the compatibles") > Signed-off-by: Dave Gerlach <d-gerlach@ti.com> > --- > include/linux/mfd/tps65218.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Applied, thanks. -- Lee Jones Linaro Services Technical Lead Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2018-03-07 13:00 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-02-16 4:17 [PATCH] mfd: tps65218: Reorder tps65218_regulator_id enum Dave Gerlach 2018-02-16 4:17 ` Dave Gerlach 2018-02-16 4:17 ` Dave Gerlach 2018-02-16 4:40 ` Keerthy 2018-02-16 4:40 ` Keerthy 2018-02-16 4:40 ` Keerthy 2018-03-07 13:00 ` Lee Jones [this message] 2018-03-07 13:00 ` Lee Jones
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