diff options
| author | Liu Ying <Ying.Liu@freescale.com> | 2015-09-11 16:03:06 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@nxp.com> | 2016-01-14 11:01:47 -0600 |
| commit | a04c581248bdafee8b335c1f4f509784076d6c83 (patch) | |
| tree | d8a44ce0333f4daa1b7c71aa714f57fa1f0f5c5d /include/linux/ipu-v3-pre.h | |
| parent | 8573397f949fd03652cd8524b693cd4f0450b096 (diff) | |
MLK-11316-3 video: mxc ipuv3 fb: Change pan display mechanism for PRE workaround
In order to workaround the PRE SoC bug recorded by errata ERR009624, the
software cannot write the PRE_CTRL register when the PRE writes the PRE_CTRL
register automatically to set the ENABLE bit(bit0) to 1 in the PRE repeat mode.
The software mechanism to set the PRE_CTRL register is different for PRE Y
resolution higher than 9 lines and lower than or equal to 9 lines.
For cases in which Y resolution is higher than 9 lines, before we update PRE
shadow, we just need to wait until the PRE store engine status runs out of
the problematic PRE automatic writing window.
While for cases in which Y resolutin is lower than or equal to 9 lines, we
have to update PRE shadow in the buffer flip interrupt handler.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit bd9c14e24aaf67926dfd31bd819ab0c87129fe4b)
Diffstat (limited to 'include/linux/ipu-v3-pre.h')
| -rw-r--r-- | include/linux/ipu-v3-pre.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/ipu-v3-pre.h b/include/linux/ipu-v3-pre.h index 1bf50aeda170..f5a26e5eadbf 100644 --- a/include/linux/ipu-v3-pre.h +++ b/include/linux/ipu-v3-pre.h @@ -90,7 +90,9 @@ int ipu_pre_config(int id, struct ipu_pre_context *config); int ipu_pre_set_ctrl(unsigned int id, struct ipu_pre_context *config); int ipu_pre_enable(int id); void ipu_pre_disable(int id); -int ipu_pre_set_fb_buffer(int id, unsigned long fb_paddr, +int ipu_pre_set_fb_buffer(int id, bool resolve, + unsigned long fb_paddr, + unsigned int y_res, unsigned int x_crop, unsigned int y_crop, unsigned int sec_buf_off, @@ -135,7 +137,9 @@ void ipu_pre_disable(int id) return; } -int ipu_pre_set_fb_buffer(int id, unsigned long fb_paddr, +int ipu_pre_set_fb_buffer(int id, bool resolve, + unsigned long fb_paddr, + unsigned int y_res, unsigned int x_crop, unsigned int y_crop, unsigned int sec_buf_off, |