[PATCH v2] da8xx-fb: enable sync lost interrupt
From: Manjunathappa, Prakash <hidden>
Date: 2012-07-24 03:55:33
Patch enables sync lost interrupt and interrupt handler already takes care to handle it. Signed-off-by: Manjunathappa, Prakash <redacted> --- 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