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Commit cd65a645 authored by Sylwester Nawrocki's avatar Sylwester Nawrocki Committed by Mauro Carvalho Chehab
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[media] s5p-csis: Enable only data lanes that are actively used 



Enable only MIPI CSI-2 data lanes at the DPHY that are actively
used, rather than unmasking all unconditionally.

Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent e26991b4

drivers/media/platform/s5p-fimc/mipi-csis.c

+7 −5
Original line number Diff line number Diff line
@@ -273,7 +273,8 @@ static void s5pcsis_reset(struct csis_state *state) 


static void s5pcsis_system_enable(struct csis_state *state, int on)

{

	u32 val;

	struct s5p_platform_mipi_csis *pdata = state->pdev->dev.platform_data;

	u32 val, mask;



	val = s5pcsis_read(state, S5PCSIS_CTRL);

	if (on)
@@ -283,10 +284,11 @@ static void s5pcsis_system_enable(struct csis_state *state, int on) 
	s5pcsis_write(state, S5PCSIS_CTRL, val);



	val = s5pcsis_read(state, S5PCSIS_DPHYCTRL);

	if (on)

		val |= S5PCSIS_DPHYCTRL_ENABLE;

	else

	val &= ~S5PCSIS_DPHYCTRL_ENABLE;

	if (on) {

		mask = (1 << (pdata->lanes + 1)) - 1;

		val |= (mask & S5PCSIS_DPHYCTRL_ENABLE);

	}

	s5pcsis_write(state, S5PCSIS_DPHYCTRL, val);

}