From patchwork Wed Nov 12 11:52:13 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 5288361 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8B378C11AC for ; Wed, 12 Nov 2014 11:53:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A984E20120 for ; Wed, 12 Nov 2014 11:53:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A153920165 for ; Wed, 12 Nov 2014 11:53:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752551AbaKLLxF (ORCPT ); Wed, 12 Nov 2014 06:53:05 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:36455 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751547AbaKLLxB (ORCPT ); Wed, 12 Nov 2014 06:53:01 -0500 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id sACBr0KB023464; Wed, 12 Nov 2014 05:53:00 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id sACBr0Ot026453; Wed, 12 Nov 2014 05:53:00 -0600 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.174.1; Wed, 12 Nov 2014 05:53:00 -0600 Received: from deskari.lan (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id sACBqgI8031206; Wed, 12 Nov 2014 05:52:59 -0600 From: Tomi Valkeinen To: , CC: Tomi Valkeinen Subject: [PATCH 11/22] OMAPDSS: DSI: dsi_runtime_get/put in pll_init Date: Wed, 12 Nov 2014 13:52:13 +0200 Message-ID: <1415793144-11723-12-git-send-email-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1415793144-11723-1-git-send-email-tomi.valkeinen@ti.com> References: <1415793144-11723-1-git-send-email-tomi.valkeinen@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When DPI uses the DSI PLL for pixel clock, the DPI code will call dsi_runtime_get/put to keep the DSI block enabled. A much simpler way to handle this is to do dsi_runtime_get/put in DSI's dsi_pll_init() and dsi_pll_uninit(), thus removing the need for DSI to call the runtime PM functions. Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/omap2/dss/dpi.c | 17 +---------------- drivers/video/fbdev/omap2/dss/dsi.c | 10 ++++++++-- drivers/video/fbdev/omap2/dss/dss.h | 10 ---------- 3 files changed, 9 insertions(+), 28 deletions(-) diff --git a/drivers/video/fbdev/omap2/dss/dpi.c b/drivers/video/fbdev/omap2/dss/dpi.c index 0b9af5d3e650..81dd5e61e75e 100644 --- a/drivers/video/fbdev/omap2/dss/dpi.c +++ b/drivers/video/fbdev/omap2/dss/dpi.c @@ -402,10 +402,6 @@ static int dpi_display_enable(struct omap_dss_device *dssdev) goto err_src_sel; if (dpi->dsidev) { - r = dsi_runtime_get(dpi->dsidev); - if (r) - goto err_get_dsi; - r = dsi_pll_init(dpi->dsidev); if (r) goto err_dsi_pll_init; @@ -432,9 +428,6 @@ err_set_mode: if (dpi->dsidev) dsi_pll_uninit(dpi->dsidev, true); err_dsi_pll_init: - if (dpi->dsidev) - dsi_runtime_put(dpi->dsidev); -err_get_dsi: err_src_sel: dispc_runtime_put(); err_get_dispc: @@ -459,7 +452,6 @@ static void dpi_display_disable(struct omap_dss_device *dssdev) if (dpi->dsidev) { dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK); dsi_pll_uninit(dpi->dsidev, true); - dsi_runtime_put(dpi->dsidev); } dispc_runtime_put(); @@ -554,18 +546,11 @@ static int dpi_verify_dsi_pll(struct platform_device *dsidev) /* do initial setup with the PLL to see if it is operational */ - r = dsi_runtime_get(dsidev); - if (r) - return r; - r = dsi_pll_init(dsidev); - if (r) { - dsi_runtime_put(dsidev); + if (r) return r; - } dsi_pll_uninit(dsidev, true); - dsi_runtime_put(dsidev); return 0; } diff --git a/drivers/video/fbdev/omap2/dss/dsi.c b/drivers/video/fbdev/omap2/dss/dsi.c index 22cc91851e94..e8415b5e877e 100644 --- a/drivers/video/fbdev/omap2/dss/dsi.c +++ b/drivers/video/fbdev/omap2/dss/dsi.c @@ -1144,7 +1144,7 @@ static u32 dsi_get_errors(struct platform_device *dsidev) return e; } -int dsi_runtime_get(struct platform_device *dsidev) +static int dsi_runtime_get(struct platform_device *dsidev) { int r; struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); @@ -1156,7 +1156,7 @@ int dsi_runtime_get(struct platform_device *dsidev) return r < 0 ? r : 0; } -void dsi_runtime_put(struct platform_device *dsidev) +static void dsi_runtime_put(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int r; @@ -1674,6 +1674,10 @@ int dsi_pll_init(struct platform_device *dsidev) if (r) return r; + r = dsi_runtime_get(dsidev); + if (r) + return r; + dsi_enable_pll_clock(dsidev, 1); /* * Note: SCP CLK is not required on OMAP3, but it is required on OMAP4. @@ -1717,6 +1721,7 @@ err1: err0: dsi_disable_scp_clk(dsidev); dsi_enable_pll_clock(dsidev, 0); + dsi_runtime_put(dsidev); return r; } @@ -1733,6 +1738,7 @@ void dsi_pll_uninit(struct platform_device *dsidev, bool disconnect_lanes) dsi_disable_scp_clk(dsidev); dsi_enable_pll_clock(dsidev, 0); + dsi_runtime_put(dsidev); DSSDBG("PLL uninit done\n"); } diff --git a/drivers/video/fbdev/omap2/dss/dss.h b/drivers/video/fbdev/omap2/dss/dss.h index e14a75b743a4..4c268985235c 100644 --- a/drivers/video/fbdev/omap2/dss/dss.h +++ b/drivers/video/fbdev/omap2/dss/dss.h @@ -268,9 +268,6 @@ struct file_operations; int dsi_init_platform_driver(void) __init; void dsi_uninit_platform_driver(void) __exit; -int dsi_runtime_get(struct platform_device *dsidev); -void dsi_runtime_put(struct platform_device *dsidev); - void dsi_dump_clocks(struct seq_file *s); void dsi_irq_handler(void); @@ -291,13 +288,6 @@ int dsi_pll_init(struct platform_device *dsidev); void dsi_pll_uninit(struct platform_device *dsidev, bool disconnect_lanes); struct platform_device *dsi_get_dsidev_from_id(int module); #else -static inline int dsi_runtime_get(struct platform_device *dsidev) -{ - return 0; -} -static inline void dsi_runtime_put(struct platform_device *dsidev) -{ -} static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt) { WARN("%s: DSI not compiled in, returning pixel_size as 0\n", __func__);