Writing to REG_CLKCTRL with the power off causes a hang. Enable the device first.
Cc: stable@vger.kernel.org # 5.10+ Signed-off-by: Lubomir Rintel lkundrak@v3.sk --- drivers/media/platform/marvell-ccic/mcam-core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index c012fd2e1d291..34266fba824f2 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c @@ -931,6 +931,7 @@ static int mclk_enable(struct clk_hw *hw) mclk_div = 2; }
+ pm_runtime_get_sync(cam->dev); clk_enable(cam->clk[0]); mcam_reg_write(cam, REG_CLKCTRL, (mclk_src << 29) | mclk_div); mcam_ctlr_power_up(cam); @@ -944,6 +945,7 @@ static void mclk_disable(struct clk_hw *hw)
mcam_ctlr_power_down(cam); clk_disable(cam->clk[0]); + pm_runtime_put(cam->dev); }
static unsigned long mclk_recalc_rate(struct clk_hw *hw,