Commit 655ae29d authored by Lubomir Rintel's avatar Lubomir Rintel Committed by Mauro Carvalho Chehab
Browse files

media: marvell-ccic: power up the device on mclk enable 



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: default avatarLubomir Rintel <lkundrak@v3.sk>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 918b866e

drivers/media/platform/marvell-ccic/mcam-core.c

+2 −0
Original line number Diff line number Diff line
@@ -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,