media: qcom: camss: Fix pm_domain_on sequence in probe
authorBryan O'Donoghue <bryan.odonoghue@linaro.org>
Wed, 30 Aug 2023 15:16:06 +0000 (16:16 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 28 Nov 2023 17:20:14 +0000 (17:20 +0000)
commit35c9b41dc83ffadb25ea6cc1cc68e25df7bef614
tree484b41514a294e1027372931091251f34f09e817
parentea67257276720eaabb6109f0bd149a743cf3dcd1
media: qcom: camss: Fix pm_domain_on sequence in probe

commit 7405116519ad70b8c7340359bfac8db8279e7ce4 upstream.

We need to make sure camss_configure_pd() happens before
camss_register_entities() as the vfe_get() path relies on the pointer
provided by camss_configure_pd().

Fix the ordering sequence in probe to ensure the pointers vfe_get() demands
are present by the time camss_register_entities() runs.

In order to facilitate backporting to stable kernels I've moved the
configure_pd() call pretty early on the probe() function so that
irrespective of the existence of the old error handling jump labels this
patch should still apply to -next circa Aug 2023 to v5.13 inclusive.

Fixes: 2f6f8af67203 ("media: camss: Refactor VFE power domain toggling")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/platform/qcom/camss/camss.c