From patchwork Tue Jul 24 03:43:33 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Manjunathappa, Prakash" X-Patchwork-Id: 1230161 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) by patchwork1.kernel.org (Postfix) with ESMTP id 524D43FD48 for ; Tue, 24 Jul 2012 03:59:51 +0000 (UTC) Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id q6O3wPVv013174; Mon, 23 Jul 2012 22:58:26 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id q6O3wPSc017773; Mon, 23 Jul 2012 22:58:25 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by dfle73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.1.323.3; Mon, 23 Jul 2012 22:58:25 -0500 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id q6O3wPDe029311; Mon, 23 Jul 2012 22:58:25 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 51E5A80627; Mon, 23 Jul 2012 22:58:25 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dbdp20.itg.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by linux.omap.com (Postfix) with ESMTP id F002780626 for ; Mon, 23 Jul 2012 22:58:22 -0500 (CDT) Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id q6O3wKcv014453; Tue, 24 Jul 2012 09:28:20 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Tue, 24 Jul 2012 09:28:20 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id q6O3wHTS011869; Tue, 24 Jul 2012 09:28:18 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id C4E43158002; Tue, 24 Jul 2012 09:28:17 +0530 (IST) Received: from linux-psp-server.india.ext.ti.com (linux-psp-server [192.168.247.76]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id q6O3wFI16378; Tue, 24 Jul 2012 09:28:16 +0530 (IST) From: "Manjunathappa, Prakash" To: Subject: [PATCH v2] da8xx-fb: enable sync lost interrupt Date: Tue, 24 Jul 2012 09:13:33 +0530 Message-ID: <1343101413-1820-1-git-send-email-prakash.pm@ti.com> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 CC: , Florian Tobias Schandinat X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com Patch enables sync lost interrupt and interrupt handler already takes care to handle it. Signed-off-by: Manjunathappa, Prakash --- 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();