diff options
| -rw-r--r-- | arch/arm/include/asm/imx-common/sys_proto.h | 2 | ||||
| -rw-r--r-- | drivers/video/mxsfb.c | 17 |
2 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/include/asm/imx-common/sys_proto.h b/arch/arm/include/asm/imx-common/sys_proto.h index 5673fb4..386c2dc 100644 --- a/arch/arm/include/asm/imx-common/sys_proto.h +++ b/arch/arm/include/asm/imx-common/sys_proto.h @@ -47,6 +47,8 @@ int fecmxc_initialize(bd_t *bis); u32 get_ahb_clk(void); u32 get_periph_clk(void); +void lcdif_power_down(void); + int mxs_reset_block(struct mxs_register_32 *reg); int mxs_wait_mask_set(struct mxs_register_32 *reg, u32 mask, u32 timeout); int mxs_wait_mask_clr(struct mxs_register_32 *reg, u32 mask, u32 timeout); diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index eed57d5..ddbb118 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -131,6 +131,23 @@ static void mxs_lcd_init(GraphicDevice *panel, writel(LCDIF_CTRL_RUN, ®s->hw_lcdif_ctrl_set); } +void lcdif_power_down(void) +{ + struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE; + int timeout = 1000000; + + writel(panel.frameAdrs, ®s->hw_lcdif_cur_buf_reg); + writel(panel.frameAdrs, ®s->hw_lcdif_next_buf_reg); + writel(LCDIF_CTRL1_VSYNC_EDGE_IRQ, ®s->hw_lcdif_ctrl1_clr); + while (--timeout) { + if (readl(®s->hw_lcdif_ctrl1_reg) & + LCDIF_CTRL1_VSYNC_EDGE_IRQ) + break; + udelay(1); + } + mxs_reset_block((struct mxs_register_32 *)®s->hw_lcdif_ctrl_reg); +} + void *video_hw_init(void) { int bpp = -1; |