On Sat, Feb 02, 2019 at 02:36:11PM +0100, Stefan Wahren wrote:
commit 2bd44dadd5bfb4135162322fd0b45a174d4ad5bf upstream.
We need to handle mmc_of_parse() errors during probe.
This finally fixes the wifi regression on Raspberry Pi 3 series. In error case the wifi chip was permanently in reset because of the power sequence depending on the deferred probe of the GPIO expander.
A manual backport of the original patch was needed because sdhci_get_of_property() was replaced by sdhci_get_property() upstream.
Fixes: b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver") Cc: stable@vger.kernel.org # 4.14 and 4.19
Thanks for this, I've also queued it up for 4.4.y and 4.9.y as b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver") is present in those releases.
greg k-h