evie/android_kernel_oneplus_msm8998
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msm: mdss: return error if dynamic refresh interrupt is timeout

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This error indicates that the new refresh rate was not dynamically
changed. The error has to be handled.

Change-Id: I0e1f0490d2207d7214cfd67dcb80a0db383e496e
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
This commit is contained in:
Huaibin Yang 2015-01-28 11:07:05 -08:00 • committed by David Keitel
parent e43e3b4bca
commit a59f26e8c2
3 changed files with 16 additions and 5 deletions
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9
drivers/video/fbdev/msm/mdss_dsi.c
View file

@ -1071,6 +1071,8 @@ static int __mdss_dsi_dfps_update_clks(struct mdss_panel_data *pdata,
if (mdss_dsi_is_ctrl_clk_slave(ctrl_pdata)) {
pr_debug("%s DFPS already updated.\n", __func__);
ctrl_pdata->panel_data.panel_info.mipi.frame_rate =
new_fps;
return rc;
}
@ -1099,7 +1101,7 @@ static int __mdss_dsi_dfps_update_clks(struct mdss_panel_data *pdata,
return rc;
}
mdss_dsi_en_wait4dynamic_done(ctrl_pdata);
rc = mdss_dsi_en_wait4dynamic_done(ctrl_pdata);
MIPI_OUTP((ctrl_pdata->ctrl_base) + DSI_DYNAMIC_REFRESH_CTRL,
0x00);
@ -1112,7 +1114,10 @@ static int __mdss_dsi_dfps_update_clks(struct mdss_panel_data *pdata,
ctrl_pdata->pll_pixel_clk);
clk_disable_unprepare(ctrl_pdata->pll_byte_clk);
clk_disable_unprepare(ctrl_pdata->pll_pixel_clk);
ctrl_pdata->panel_data.panel_info.mipi.frame_rate = new_fps;
if (!rc)
ctrl_pdata->panel_data.panel_info.mipi.frame_rate =
new_fps;
} else {
ctrl_pdata->pclk_rate =
pdata->panel_info.mipi.dsi_pclk_rate;

2
drivers/video/fbdev/msm/mdss_dsi.h
View file

@ -464,7 +464,7 @@ void mdss_dsi_ctrl_init(struct device *ctrl_dev,
struct mdss_dsi_ctrl_pdata *ctrl);
void mdss_dsi_cmd_mdp_busy(struct mdss_dsi_ctrl_pdata *ctrl);
void mdss_dsi_wait4video_done(struct mdss_dsi_ctrl_pdata *ctrl);
void mdss_dsi_en_wait4dynamic_done(struct mdss_dsi_ctrl_pdata *ctrl);
int mdss_dsi_en_wait4dynamic_done(struct mdss_dsi_ctrl_pdata *ctrl);
int mdss_dsi_cmdlist_commit(struct mdss_dsi_ctrl_pdata *ctrl, int from_mdp);
void mdss_dsi_cmdlist_kickoff(int intf);
int mdss_dsi_bta_status_check(struct mdss_dsi_ctrl_pdata *ctrl);

10
drivers/video/fbdev/msm/mdss_dsi_host.c
View file

@ -1685,10 +1685,12 @@ static int mdss_dsi_cmd_dma_rx(struct mdss_dsi_ctrl_pdata *ctrl,
return rx_byte;
}
void mdss_dsi_en_wait4dynamic_done(struct mdss_dsi_ctrl_pdata *ctrl)
int mdss_dsi_en_wait4dynamic_done(struct mdss_dsi_ctrl_pdata *ctrl)
{
unsigned long flag;
u32 data;
int rc = 0;
/* DSI_INTL_CTRL */
data = MIPI_INP((ctrl->ctrl_base) + 0x0110);
data &= DSI_INTR_TOTAL_MASK;
@ -1703,13 +1705,17 @@ void mdss_dsi_en_wait4dynamic_done(struct mdss_dsi_ctrl_pdata *ctrl)
(BIT(8) | BIT(0)));
if (!wait_for_completion_timeout(&ctrl->dynamic_comp,
msecs_to_jiffies(VSYNC_PERIOD * 4)))
msecs_to_jiffies(VSYNC_PERIOD * 4))) {
pr_err("Dynamic interrupt timedout\n");
rc = -EINVAL;
}
data = MIPI_INP((ctrl->ctrl_base) + 0x0110);
data &= DSI_INTR_TOTAL_MASK;
data &= ~DSI_INTR_DYNAMIC_REFRESH_MASK;
MIPI_OUTP((ctrl->ctrl_base) + 0x0110, data);
return rc;
}
void mdss_dsi_wait4video_done(struct mdss_dsi_ctrl_pdata *ctrl)