From patchwork Mon Feb 8 15:56:00 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 77756 X-Patchwork-Delegate: tomi.valkeinen@nokia.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o18Frsxt008697 for ; Mon, 8 Feb 2010 15:53:54 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753394Ab0BHPxw (ORCPT ); Mon, 8 Feb 2010 10:53:52 -0500 Received: from smtp.nokia.com ([192.100.105.134]:45704 "EHLO mgw-mx09.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753363Ab0BHPxt (ORCPT ); Mon, 8 Feb 2010 10:53:49 -0500 Received: from vaebh106.NOE.Nokia.com (vaebh106.europe.nokia.com [10.160.244.32]) by mgw-mx09.nokia.com (Switch-3.3.3/Switch-3.3.3) with ESMTP id o18FreY2013867; Mon, 8 Feb 2010 09:53:48 -0600 Received: from vaebh104.NOE.Nokia.com ([10.160.244.30]) by vaebh106.NOE.Nokia.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 8 Feb 2010 17:53:34 +0200 Received: from mgw-sa02.ext.nokia.com ([147.243.1.48]) by vaebh104.NOE.Nokia.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.3959); Mon, 8 Feb 2010 17:53:34 +0200 Received: from localhost.localdomain (esdhcp041210.research.nokia.com [172.21.41.210]) by mgw-sa02.ext.nokia.com (Switch-3.3.3/Switch-3.3.3) with ESMTP id o18FrVb5017114; Mon, 8 Feb 2010 17:53:33 +0200 From: Tomi Valkeinen To: linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org Cc: Tomi Valkeinen Subject: [PATCH 01/13] OMAP: DSS2: enable VDDS_DSI when using DPI Date: Mon, 8 Feb 2010 17:56:00 +0200 Message-Id: <1265644572-3578-2-git-send-email-tomi.valkeinen@nokia.com> X-Mailer: git-send-email 1.6.5 In-Reply-To: <1265644572-3578-1-git-send-email-tomi.valkeinen@nokia.com> References: <1265644572-3578-1-git-send-email-tomi.valkeinen@nokia.com> X-OriginalArrivalTime: 08 Feb 2010 15:53:34.0409 (UTC) FILETIME=[DE927B90:01CAA8D6] X-Nokia-AV: Clean Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Mon, 08 Feb 2010 15:53:54 +0000 (UTC) diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 82918ee..791e1cb 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -47,6 +48,10 @@ static struct { struct clk *dss_54m_fck; struct clk *dss_96m_fck; unsigned num_clks_enabled; + + struct regulator *vdds_dsi_reg; + struct regulator *vdds_sdi_reg; + struct regulator *vdda_dac_reg; } core; static void dss_clk_enable_all_no_ctx(void); @@ -352,6 +357,50 @@ static void dss_clk_disable_all(void) dss_clk_disable(clks); } +/* REGULATORS */ + +struct regulator *dss_get_vdds_dsi(void) +{ + struct regulator *reg; + + if (core.vdds_dsi_reg != NULL) + return core.vdds_dsi_reg; + + reg = regulator_get(&core.pdev->dev, "vdds_dsi"); + if (!IS_ERR(reg)) + core.vdds_dsi_reg = reg; + + return reg; +} + +struct regulator *dss_get_vdds_sdi(void) +{ + struct regulator *reg; + + if (core.vdds_sdi_reg != NULL) + return core.vdds_sdi_reg; + + reg = regulator_get(&core.pdev->dev, "vdds_sdi"); + if (!IS_ERR(reg)) + core.vdds_sdi_reg = reg; + + return reg; +} + +struct regulator *dss_get_vdda_dac(void) +{ + struct regulator *reg; + + if (core.vdda_dac_reg != NULL) + return core.vdda_dac_reg; + + reg = regulator_get(&core.pdev->dev, "vdda_dac"); + if (!IS_ERR(reg)) + core.vdda_dac_reg = reg; + + return reg; +} + /* DEBUGFS */ #if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) static void dss_debug_dump_clocks(struct seq_file *s) @@ -473,7 +522,7 @@ static int omap_dss_probe(struct platform_device *pdev) } #endif - r = dpi_init(); + r = dpi_init(pdev); if (r) { DSSERR("Failed to initialize dpi\n"); goto fail0; @@ -901,6 +950,21 @@ static int __init omap_dss_init(void) static void __exit omap_dss_exit(void) { + if (core.vdds_dsi_reg != NULL) { + regulator_put(core.vdds_dsi_reg); + core.vdds_dsi_reg = NULL; + } + + if (core.vdds_sdi_reg != NULL) { + regulator_put(core.vdds_sdi_reg); + core.vdds_sdi_reg = NULL; + } + + if (core.vdda_dac_reg != NULL) { + regulator_put(core.vdda_dac_reg); + core.vdda_dac_reg = NULL; + } + platform_driver_unregister(&omap_dss_driver); omap_dss_bus_unregister(); diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c index 2d71031..69ce31a 100644 --- a/drivers/video/omap2/dss/dpi.c +++ b/drivers/video/omap2/dss/dpi.c @@ -25,7 +25,10 @@ #include #include #include +#include #include +#include +#include #include #include @@ -34,6 +37,7 @@ static struct { int update_enabled; + struct regulator *vdds_dsi_reg; } dpi; #ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL @@ -166,21 +170,27 @@ static int dpi_display_enable(struct omap_dss_device *dssdev) goto err1; } + if (cpu_is_omap34xx()) { + r = regulator_enable(dpi.vdds_dsi_reg); + if (r) + goto err2; + } + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); r = dpi_basic_init(dssdev); if (r) - goto err2; + goto err3; #ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL dss_clk_enable(DSS_CLK_FCK2); r = dsi_pll_init(dssdev, 0, 1); if (r) - goto err3; + goto err4; #endif r = dpi_set_mode(dssdev); if (r) - goto err4; + goto err5; mdelay(2); @@ -188,22 +198,25 @@ static int dpi_display_enable(struct omap_dss_device *dssdev) r = dssdev->driver->enable(dssdev); if (r) - goto err5; + goto err6; dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; return 0; -err5: +err6: dispc_enable_lcd_out(0); -err4: +err5: #ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL dsi_pll_uninit(); -err3: +err4: dss_clk_disable(DSS_CLK_FCK2); #endif -err2: +err3: dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +err2: + if (cpu_is_omap34xx()) + regulator_disable(dpi.vdds_dsi_reg); err1: omap_dss_stop_device(dssdev); err0: @@ -232,6 +245,9 @@ static void dpi_display_disable(struct omap_dss_device *dssdev) dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + if (cpu_is_omap34xx()) + regulator_disable(dpi.vdds_dsi_reg); + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; omap_dss_stop_device(dssdev); @@ -251,6 +267,9 @@ static int dpi_display_suspend(struct omap_dss_device *dssdev) dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + if (cpu_is_omap34xx()) + regulator_disable(dpi.vdds_dsi_reg); + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; return 0; @@ -258,11 +277,19 @@ static int dpi_display_suspend(struct omap_dss_device *dssdev) static int dpi_display_resume(struct omap_dss_device *dssdev) { + int r; + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) return -EINVAL; DSSDBG("dpi_display_resume\n"); + if (cpu_is_omap34xx()) { + r = regulator_enable(dpi.vdds_dsi_reg); + if (r) + goto err0; + } + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); dispc_enable_lcd_out(1); @@ -273,6 +300,8 @@ static int dpi_display_resume(struct omap_dss_device *dssdev) dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; return 0; +err0: + return r; } static void dpi_set_timings(struct omap_dss_device *dssdev, @@ -388,8 +417,16 @@ int dpi_init_display(struct omap_dss_device *dssdev) return 0; } -int dpi_init(void) +int dpi_init(struct platform_device *pdev) { + if (cpu_is_omap34xx()) { + dpi.vdds_dsi_reg = dss_get_vdds_dsi(); + if (IS_ERR(dpi.vdds_dsi_reg)) { + DSSERR("can't get VDDS_DSI regulator\n"); + return PTR_ERR(dpi.vdds_dsi_reg); + } + } + return 0; } diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 6122178..036f422 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -3799,7 +3799,7 @@ int dsi_init(struct platform_device *pdev) goto err1; } - dsi.vdds_dsi_reg = regulator_get(&pdev->dev, "vdds_dsi"); + dsi.vdds_dsi_reg = dss_get_vdds_dsi(); if (IS_ERR(dsi.vdds_dsi_reg)) { iounmap(dsi.base); DSSERR("can't get VDDS_DSI regulator\n"); @@ -3830,8 +3830,6 @@ void dsi_exit(void) { kthread_stop(dsi.thread); - regulator_put(dsi.vdds_dsi_reg); - iounmap(dsi.base); DSSDBG("omap_dsi_exit\n"); diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 2bcb124..41145af 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -169,6 +169,9 @@ unsigned long dss_clk_get_rate(enum dss_clock clk); int dss_need_ctx_restore(void); void dss_dump_clocks(struct seq_file *s); struct bus_type *dss_get_bus(void); +struct regulator *dss_get_vdds_dsi(void); +struct regulator *dss_get_vdds_sdi(void); +struct regulator *dss_get_vdda_dac(void); /* display */ int dss_suspend_all_devices(void); @@ -261,7 +264,7 @@ void dsi_get_overlay_fifo_thresholds(enum omap_plane plane, u32 *fifo_low, u32 *fifo_high); /* DPI */ -int dpi_init(void); +int dpi_init(struct platform_device *pdev); void dpi_exit(void); int dpi_init_display(struct omap_dss_device *dssdev); diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 749a5a0..44b4998 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -482,7 +482,7 @@ int venc_init(struct platform_device *pdev) return -ENOMEM; } - venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac"); + venc.vdda_dac_reg = dss_get_vdda_dac(); if (IS_ERR(venc.vdda_dac_reg)) { iounmap(venc.base); DSSERR("can't get VDDA_DAC regulator\n"); @@ -503,8 +503,6 @@ void venc_exit(void) { omap_dss_unregister_driver(&venc_driver); - regulator_put(venc.vdda_dac_reg); - iounmap(venc.base); }