evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mdss: dsi: Update overflow recovery sequence for msm8994

Browse source 
On msm8994, implement the overflow recovery sequence
for all overflow interrupts. For other targets,
implement the overflow recovery sequence only
when the clock lane is not present in stop state.

Change-Id: If47e5cfe95a2caa204daf2ea4bae55af4a1713f9
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
This commit is contained in:
Chandan Uddaraju 2014-11-17 12:40:58 -08:00 • committed by David Keitel
parent cff7fea574
commit e53e8445a1
1 changed files with 15 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/video/fbdev/msm/mdss_dsi_host.c
View file

@ -1954,6 +1954,7 @@ static int dsi_event_thread(void *data)
struct sched_param param;
u32 todo = 0, ln_status;
int ret;
u32 ctrl_rev;
param.sched_priority = 16;
ret = sched_setscheduler_nocheck(current, SCHED_FIFO, &param);
@ -2001,9 +2002,11 @@ static int dsi_event_thread(void *data)
mdss_dsi_sw_reset(ctrl, true);
if (todo & DSI_EV_DLNx_FIFO_OVERFLOW) {
ctrl_rev = MIPI_INP(ctrl->ctrl_base);
mutex_lock(&dsi_mtx);
/*
* Run the overflow recovery sequence only when
* For targets other than msm8994,
* run the overflow recovery sequence only when
* data lanes are in stop state and
* clock lane is not in Stop State.
*/
@ -2011,6 +2014,7 @@ static int dsi_event_thread(void *data)
pr_debug("%s: lane_status: 0x%x\n",
__func__, ln_status);
if (ctrl->recovery
&& (ctrl_rev != MDSS_DSI_HW_REV_103)
&& (ln_status
& DSI_DATA_LANES_STOP_STATE)
&& !(ln_status
@ -2022,6 +2026,16 @@ static int dsi_event_thread(void *data)
mdss_dsi_err_intr_ctrl(ctrl,
DSI_INTR_ERROR_MASK, 1);
mdss_dsi_clk_ctrl(ctrl, DSI_ALL_CLKS, 0);
} else if (ctrl->recovery
&& (ctrl_rev
== MDSS_DSI_HW_REV_103)) {
pr_debug("%s: Handle overflow->Rev_103\n",
__func__);
mdss_dsi_clk_ctrl(ctrl, DSI_ALL_CLKS, 1);
mdss_dsi_ctl_phy_reset(ctrl);
mdss_dsi_err_intr_ctrl(ctrl,
DSI_INTR_ERROR_MASK, 1);
mdss_dsi_clk_ctrl(ctrl, DSI_ALL_CLKS, 0);
}
mutex_unlock(&dsi_mtx);
}