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Will re-send shortly. On 11/10/26 09:58, Brandon Brnich wrote: > The PM framework skips the runtime resume hook if the device was never on > in the first place. This results in a crash in the system resume hook when > a call to e5010_init_device attempts a write to a powered down device. > > Move e5010_init_device to the resume hook to ensure register write only > occurs when device is properly powered on. > > e5010_init_device needs to be called after e5010_reset for next > device_run to have all registers properly reset. Without this call, > register values are stale. Similarly, e5010_last_context_run should be > set to NULL in e5010_init_device so the next device_run call does not > use stale QP values. > > Fixes: a1e294045885 ("media: imagination: Add E5010 JPEG Encoder driver") > Cc: stable@vger.kernel.org > Signed-off-by: Brandon Brnich > --- > .../platform/imagination/e5010-jpeg-enc.c | 19 ++++++++++++------- > 1 file changed, 12 insertions(+), 7 deletions(-) > > diff --git a/drivers/media/platform/imagination/e5010-jpeg-enc.c b/drivers/media/platform/imagination/e5010-jpeg-enc.c > index 17ea616ff1795..4e77112b59197 100644 > --- a/drivers/media/platform/imagination/e5010-jpeg-enc.c > +++ b/drivers/media/platform/imagination/e5010-jpeg-enc.c > @@ -986,6 +986,8 @@ static int e5010_init_device(struct e5010_dev *e5010) > { > int ret = 0; > > + e5010->last_context_run = NULL; > + > /*TODO: Set MMU in bypass mode until support for the same is added in driver*/ > e5010_hw_bypass_mmu(e5010->mmu_base, 1); > > @@ -1488,7 +1490,9 @@ static void e5010_device_run(void *priv) > > device_busy_err: > e5010_reset(e5010->dev, e5010->core_base, e5010->mmu_base); > - > + ret = e5010_init_device(e5010); > + if (ret) > + v4l2_err(&e5010->v4l2_dev, "failed to initialize device after reset\n"); > no_ready_buf_err: > if (s_vb) { > v4l2_m2m_src_buf_remove_by_buf(ctx->fh.m2m_ctx, s_vb); > @@ -1517,6 +1521,13 @@ static int e5010_runtime_resume(struct device *dev) > return ret; > } > > + ret = e5010_init_device(e5010); > + if (ret) { > + dev_err(dev, "Failed to re-enable e5010 device\n"); > + clk_disable_unprepare(e5010->clk); > + return ret; > + } > + > return 0; > } > > @@ -1549,12 +1560,6 @@ static int e5010_resume(struct device *dev) > if (ret < 0) > return ret; > > - ret = e5010_init_device(e5010); > - if (ret) { > - dev_err(dev, "Failed to re-enable e5010 device\n"); > - return ret; > - } > - > v4l2_m2m_resume(e5010->m2m_dev); > > return ret;