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[media] s5p-csis: Enable only data lanes that are actively used

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

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2012-11-02 14:20:27 -03:00 committed by Mauro Carvalho Chehab
parent e26991b49a
commit cd65a645a4
1 changed files with 7 additions and 5 deletions
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12
drivers/media/platform/s5p-fimc/mipi-csis.c
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@ -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;
val &= ~S5PCSIS_DPHYCTRL_ENABLE;
if (on) {
mask = (1 << (pdata->lanes + 1)) - 1;
val |= (mask & S5PCSIS_DPHYCTRL_ENABLE);
}
s5pcsis_write(state, S5PCSIS_DPHYCTRL, val);
}