From patchwork Thu Aug 30 11:40:39 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: archit taneja X-Patchwork-Id: 1387831 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 3DBE43FDF5 for ; Thu, 30 Aug 2012 11:43:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754771Ab2H3LnV (ORCPT ); Thu, 30 Aug 2012 07:43:21 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:36973 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754177Ab2H3LnV (ORCPT ); Thu, 30 Aug 2012 07:43:21 -0400 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id q7UBhKX2013782; Thu, 30 Aug 2012 06:43:20 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7UBhK5S001456; Thu, 30 Aug 2012 06:43:20 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by dfle72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.1.323.3; Thu, 30 Aug 2012 06:43:20 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7UBhKrQ005689; Thu, 30 Aug 2012 06:43:20 -0500 Received: from localhost (a0393947pc.apr.dhcp.ti.com [172.24.137.248]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id q7UBhIr25271; Thu, 30 Aug 2012 06:43:18 -0500 (CDT) From: Archit Taneja To: CC: , , , Archit Taneja Subject: [PATCH v2 17/23] OMAPDSS: HDMI: Pass omap_dss_output within the driver Date: Thu, 30 Aug 2012 17:10:39 +0530 Message-ID: <1346326845-16583-18-git-send-email-archit@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1346326845-16583-1-git-send-email-archit@ti.com> References: <1345528711-27801-1-git-send-email-archit@ti.com> <1346326845-16583-1-git-send-email-archit@ti.com> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org When a panel driver calls a HDMI function, it passes the omap_dss_device pointer, this pointer currently propagates within the HDMI driver to configure the interface. Extract the omap_dss_output pointer from omap_dss_device received from the panel driver, pass the output pointer to HDMI functions local to the driver to configure the interface, these functions no longer need omap_dss_device since the driver now maintains a copy of output parameters. Replace dssdev->manager references with out->manager references as only these will be valid later. With the addition of outputs. There is a possibility that an omap_dss_device isn't connected to an output, or a manager isn't connected to an output yet. Ensure that the HDMI interface functions proceed only if the output is non NULL. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/hdmi.c | 40 ++++++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 16 deletions(-) diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index d93954d..3c89904 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -407,9 +407,10 @@ unsigned long hdmi_get_pixel_clock(void) return hdmi.ip_data.cfg.timings.pixel_clock * 1000; } -static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy, +static void hdmi_compute_pll(struct omap_dss_output *out, int phy, struct hdmi_pll_info *pi) { + struct omap_dss_device *dssdev = out->device; unsigned long clkin, refclk; u32 mf; @@ -458,7 +459,7 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy, DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd); } -static int hdmi_power_on(struct omap_dss_device *dssdev) +static int hdmi_power_on(struct omap_dss_output *out) { int r; struct omap_video_timings *p; @@ -468,7 +469,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) if (r) return r; - dss_mgr_disable(dssdev->manager); + dss_mgr_disable(out->manager); p = &hdmi.ip_data.cfg.timings; @@ -476,7 +477,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) phy = p->pixel_clock; - hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data); + hdmi_compute_pll(out, phy, &hdmi.ip_data.pll_data); hdmi.ip_data.ops->video_disable(&hdmi.ip_data); @@ -504,19 +505,19 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) * dynamically by user. This can be moved to single location , say * Boardfile. */ - dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src); + dss_select_dispc_clk_source(out->device->clocks.dispc.dispc_fclk_src); /* bypass TV gamma table */ dispc_enable_gamma_table(0); /* tv size */ - dss_mgr_set_timings(dssdev->manager, p); + dss_mgr_set_timings(out->manager, p); r = hdmi.ip_data.ops->video_enable(&hdmi.ip_data); if (r) goto err_vid_enable; - r = dss_mgr_enable(dssdev->manager); + r = dss_mgr_enable(out->manager); if (r) goto err_mgr_enable; @@ -533,9 +534,9 @@ err: return -EIO; } -static void hdmi_power_off(struct omap_dss_device *dssdev) +static void hdmi_power_off(struct omap_dss_output *out) { - dss_mgr_disable(dssdev->manager); + dss_mgr_disable(out->manager); hdmi.ip_data.ops->video_disable(&hdmi.ip_data); hdmi.ip_data.ops->phy_disable(&hdmi.ip_data); @@ -560,9 +561,13 @@ int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev, void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { + struct omap_dss_output *out = dssdev->output; struct hdmi_cm cm; const struct hdmi_config *t; + if (out == NULL) + return; + mutex_lock(&hdmi.lock); cm = hdmi_get_code(timings); @@ -575,13 +580,13 @@ void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev, if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { int r; - hdmi_power_off(dssdev); + hdmi_power_off(out); - r = hdmi_power_on(dssdev); + r = hdmi_power_on(out); if (r) DSSERR("failed to power on device\n"); } else { - dss_mgr_set_timings(dssdev->manager, &t->timings); + dss_mgr_set_timings(out->manager, &t->timings); } mutex_unlock(&hdmi.lock); @@ -640,14 +645,15 @@ bool omapdss_hdmi_detect(void) int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev) { struct omap_dss_hdmi_data *priv = dssdev->data; + struct omap_dss_output *out = dssdev->output; int r = 0; DSSDBG("ENTER hdmi_display_enable\n"); mutex_lock(&hdmi.lock); - if (dssdev->manager == NULL) { - DSSERR("failed to enable display: no manager\n"); + if (out == NULL || out->manager == NULL) { + DSSERR("failed to enable display: no output/manager\n"); r = -ENODEV; goto err0; } @@ -668,7 +674,7 @@ int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev) } } - r = hdmi_power_on(dssdev); + r = hdmi_power_on(out); if (r) { DSSERR("failed to power on device\n"); goto err2; @@ -689,11 +695,13 @@ err0: void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev) { + struct omap_dss_output *out = dssdev->output; + DSSDBG("Enter hdmi_display_disable\n"); mutex_lock(&hdmi.lock); - hdmi_power_off(dssdev); + hdmi_power_off(out); if (dssdev->platform_disable) dssdev->platform_disable(dssdev);