Patch enables sync lost interrupt and interrupt handler already
takes care to handle it.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@xxxxxx>
---
Since v1:
Minor nit, replaced spaces with tabs.
drivers/video/da8xx-fb.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 47118c7..8163832 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -54,6 +54,7 @@
#define LCD_DMA_BURST_8 0x3
#define LCD_DMA_BURST_16 0x4
#define LCD_V1_END_OF_FRAME_INT_ENA BIT(2)
+#define LCD_V1_SYNC_LOST_ENA BIT(5)
#define LCD_V2_END_OF_FRAME0_INT_ENA BIT(8)
#define LCD_V2_END_OF_FRAME1_INT_ENA BIT(9)
#define LCD_DUAL_FRAME_BUFFER_ENABLE BIT(0)
@@ -441,10 +442,10 @@ static int lcd_cfg_display(const struct lcd_ctrl_config *cfg)
/* enable additional interrupts here */
if (lcd_revision == LCD_VERSION_1) {
- reg |= LCD_V1_UNDERFLOW_INT_ENA;
+ reg |= LCD_V1_UNDERFLOW_INT_ENA | LCD_V1_SYNC_LOST_ENA;
} else {
reg_int = lcdc_read(LCD_INT_ENABLE_SET_REG) |
- LCD_V2_UNDERFLOW_INT_ENA;
+ LCD_V2_UNDERFLOW_INT_ENA | LCD_SYNC_LOST;
lcdc_write(reg_int, LCD_INT_ENABLE_SET_REG);
}
@@ -718,6 +719,7 @@ static irqreturn_t lcdc_irq_handler_rev02(int irq, void *arg)
u32 reg_int;
if ((stat & LCD_SYNC_LOST) && (stat & LCD_FIFO_UNDERFLOW)) {
+ pr_err("LCDC sync lost or underflow error occurred\n");
lcd_disable_raster();
lcdc_write(stat, LCD_MASKED_STAT_REG);
lcd_enable_raster();
@@ -773,6 +775,7 @@ static irqreturn_t lcdc_irq_handler_rev01(int irq, void *arg)
u32 reg_ras;
if ((stat & LCD_SYNC_LOST) && (stat & LCD_FIFO_UNDERFLOW)) {
+ pr_err("LCDC sync lost or underflow error occurred\n");
lcd_disable_raster();
lcdc_write(stat, LCD_STAT_REG);
lcd_enable_raster();
--
1.7.1
--
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