This is a note to let you know that I've just added the patch titled
ASoC: img-parallel-out: Add pm_runtime_get/put to set_fmt callback
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: asoc-img-parallel-out-add-pm_runtime_get-put-to-set_fmt-callback.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Wed Dec 20 18:17:52 CET 2017
From: Ed Blake ed.blake@sondrel.com Date: Mon, 2 Oct 2017 11:00:33 +0100 Subject: ASoC: img-parallel-out: Add pm_runtime_get/put to set_fmt callback
From: Ed Blake ed.blake@sondrel.com
[ Upstream commit c70458890ff15d858bd347fa9f563818bcd6e457 ]
Add pm_runtime_get_sync and pm_runtime_put calls to set_fmt callback function. This fixes a bus error during boot when CONFIG_SUSPEND is defined when this function gets called while the device is runtime disabled and device registers are accessed while the clock is disabled.
Signed-off-by: Ed Blake ed.blake@sondrel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/img/img-parallel-out.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/sound/soc/img/img-parallel-out.c +++ b/sound/soc/img/img-parallel-out.c @@ -164,9 +164,11 @@ static int img_prl_out_set_fmt(struct sn return -EINVAL; }
+ pm_runtime_get_sync(prl->dev); reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL); reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set; img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL); + pm_runtime_put(prl->dev);
return 0; }
Patches currently in stable-queue which might be from ed.blake@sondrel.com are
queue-4.14/asoc-img-parallel-out-add-pm_runtime_get-put-to-set_fmt-callback.patch