[media] s5p-mfc: check mfc bus ctrl before reset

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during reset sequence, it is advisable to follow the below
sequence, in order to avoid unexpected behavior from MFC
. set SFR 0x7110 MFC_BUS_RESET_CTRL 0x1
  // wait for REQ_STATUS to be 1
. get SFR 0x7110 MFC_BUS_RESET_CTRL 0x3
  // reset now

Signed-off-by: Kiran AVND <avnd.kiran@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

...

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Kiran AVND 2014-10-21 08:07:00 -03:00 • committed by Mauro Carvalho Chehab

parent d7dce6a3cd

commit 09accdad0d

2 changed files with 25 additions and 1 deletions

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1

drivers/media/platform/s5p-mfc/regs-mfc-v6.h

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25

drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c

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