diff options
| -rw-r--r-- | drivers/video/ipu.h | 10 | ||||
| -rw-r--r-- | drivers/video/ipu_disp.c | 29 | ||||
| -rw-r--r-- | drivers/video/ipu_regs.h | 5 |
3 files changed, 22 insertions, 22 deletions
diff --git a/drivers/video/ipu.h b/drivers/video/ipu.h index 3d2741f..a3dce8f 100644 --- a/drivers/video/ipu.h +++ b/drivers/video/ipu.h @@ -6,7 +6,7 @@ * * Linux IPU driver for MX51: * - * (C) Copyright 2005-2010 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2014 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -176,6 +176,14 @@ typedef union { } ipu_channel_params_t; /* + * Enumeration of IPU interrupts. + */ +enum ipu_irq_line { + IPU_IRQ_DP_SF_END = 448 + 3, + IPU_IRQ_DC_FC_1 = 448 + 9, +}; + +/* * Bitfield of Display Interface signal polarities. */ typedef struct { diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c index cefd2dc..5bfe89e 100644 --- a/drivers/video/ipu_disp.c +++ b/drivers/video/ipu_disp.c @@ -6,7 +6,7 @@ * * Linux IPU driver for MX51: * - * (C) Copyright 2005-2010 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2014 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -666,13 +666,16 @@ void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap) uint32_t csc; uint32_t dc_chan = 0; int timeout = 50; + int irq = 0; dc_swap = swap; if (channel == MEM_DC_SYNC) { dc_chan = 1; + irq = IPU_IRQ_DC_FC_1; } else if (channel == MEM_BG_SYNC) { dc_chan = 5; + irq = IPU_IRQ_DP_SF_END; } else if (channel == MEM_FG_SYNC) { /* Disable FG channel */ dc_chan = 5; @@ -723,25 +726,11 @@ void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap) reg ^= DC_WR_CH_CONF_PROG_DI_ID; __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); } else { - timeout = 50; - - /* Wait for DC triple buffer to empty */ - if (g_dc_di_assignment[dc_chan] == 0) - while ((__raw_readl(DC_STAT) & 0x00000002) - != 0x00000002) { - udelay(2000); - timeout -= 2; - if (timeout <= 0) - break; - } - else if (g_dc_di_assignment[dc_chan] == 1) - while ((__raw_readl(DC_STAT) & 0x00000020) - != 0x00000020) { - udelay(2000); - timeout -= 2; - if (timeout <= 0) - break; - } + /* Make sure that we leave at the irq starting edge */ + __raw_writel(IPUIRQ_2_MASK(irq), IPUIRQ_2_STATREG(irq)); + do { + reg = __raw_readl(IPUIRQ_2_STATREG(irq)); + } while (!(reg & IPUIRQ_2_MASK(irq))); reg = __raw_readl(DC_WR_CH_CONF(dc_chan)); reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK; diff --git a/drivers/video/ipu_regs.h b/drivers/video/ipu_regs.h index 21e9c99..f800405 100644 --- a/drivers/video/ipu_regs.h +++ b/drivers/video/ipu_regs.h @@ -6,7 +6,7 @@ * * Linux IPU driver for MX51: * - * (C) Copyright 2005-2009 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2014 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -313,9 +313,12 @@ struct ipu_dmfc { #define IPU_STAT ((struct ipu_stat *)(IPU_CTRL_BASE_ADDR + \ IPU_STAT_REG_BASE)) +#define IPU_INT_STAT(n) (&IPU_STAT->int_stat[(n) - 1]) #define IPU_CHA_CUR_BUF(ch) (&IPU_STAT->cur_buf[ch / 32]) #define IPU_CHA_BUF0_RDY(ch) (&IPU_STAT->ch_buf0_rdy[ch / 32]) #define IPU_CHA_BUF1_RDY(ch) (&IPU_STAT->ch_buf1_rdy[ch / 32]) +#define IPUIRQ_2_STATREG(irq) (IPU_INT_STAT(1) + ((irq) / 32)) +#define IPUIRQ_2_MASK(irq) (1UL << ((irq) & 0x1F)) #define IPU_INT_CTRL(n) (&IPU_CM_REG->int_ctrl[(n) - 1]) |