From: Bryan O'Donoghue bryan.odonoghue@linaro.org
stable inclusion from stable-v6.6.3 commit 35c9b41dc83ffadb25ea6cc1cc68e25df7bef614 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8LBQP
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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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 Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/media/platform/qcom/camss/camss.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c index f11dc59135a5..75991d849b57 100644 --- a/drivers/media/platform/qcom/camss/camss.c +++ b/drivers/media/platform/qcom/camss/camss.c @@ -1619,6 +1619,12 @@ static int camss_probe(struct platform_device *pdev) if (ret < 0) goto err_cleanup;
+ ret = camss_configure_pd(camss); + if (ret < 0) { + dev_err(dev, "Failed to configure power domains: %d\n", ret); + goto err_cleanup; + } + ret = camss_init_subdevices(camss); if (ret < 0) goto err_cleanup; @@ -1678,12 +1684,6 @@ static int camss_probe(struct platform_device *pdev) } }
- ret = camss_configure_pd(camss); - if (ret < 0) { - dev_err(dev, "Failed to configure power domains: %d\n", ret); - return ret; - } - pm_runtime_enable(dev);
return 0;