From patchwork Sun Jul 7 18:19:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11034279 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 99ACC138B for ; Sun, 7 Jul 2019 18:39:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 884CC2832D for ; Sun, 7 Jul 2019 18:39:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7977C2835B; Sun, 7 Jul 2019 18:39:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F10A92832D for ; Sun, 7 Jul 2019 18:39:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 255C689C03; Sun, 7 Jul 2019 18:39:07 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by gabe.freedesktop.org (Postfix) with ESMTPS id 193C789C03 for ; Sun, 7 Jul 2019 18:39:06 +0000 (UTC) Received: from pendragon.nordic-sky.finnair.com (unknown [38.98.37.142]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id D503CAF9; Sun, 7 Jul 2019 20:38:44 +0200 (CEST) From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH 52/60] drm/omap: dpi: Reorder functions in sections Date: Sun, 7 Jul 2019 21:19:29 +0300 Message-Id: <20190707181937.6250-49-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190707181937.6250-1-laurent.pinchart@ideasonboard.com> References: <20190707180852.5512-1-laurent.pinchart@ideasonboard.com> <20190707181937.6250-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1562524744; bh=4GL6LB0A+RbkRkpJPPpV5mtsOzGWFQ0Si4emkF6SDaQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m4dceWebQg13qR3oXNrpSDXYi1pPjwcP6jO7scJnSvywdej0EGAmiSM0ATlJ7jiN+ SL0EWzm4NtZX+R2uvtIv5JHgKvuuweo6KEMXrEvTrQMyB7L4pZ3TePUUkeokqbXVz4 S4GRZ9MzQBBz6gJPUulpfgih2A9hkwM4kejkoKn4= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Ripard , Sebastian Reichel , Tomi Valkeinen , Sean Paul Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Group functions based on their purpose and split them in sections to make the source code easier to navigate. No functional change is included. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/omapdrm/dss/dpi.c | 146 ++++++++++++++++-------------- 1 file changed, 79 insertions(+), 67 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c b/drivers/gpu/drm/omapdrm/dss/dpi.c index da7d50cde31d..12a70b7163da 100644 --- a/drivers/gpu/drm/omapdrm/dss/dpi.c +++ b/drivers/gpu/drm/omapdrm/dss/dpi.c @@ -59,6 +59,10 @@ static struct dpi_data *dpi_get_data_from_dssdev(struct omap_dss_device *dssdev) return container_of(dssdev, struct dpi_data, output); } +/* ----------------------------------------------------------------------------- + * Clock Handling and PLL + */ + static enum dss_clk_source dpi_get_clk_src_dra7xx(struct dpi_data *dpi, enum omap_channel channel) { @@ -377,6 +381,62 @@ static void dpi_config_lcd_manager(struct dpi_data *dpi) dss_mgr_set_lcd_config(&dpi->output, &dpi->mgr_config); } +static int dpi_verify_pll(struct dss_pll *pll) +{ + int r; + + /* do initial setup with the PLL to see if it is operational */ + + r = dss_pll_enable(pll); + if (r) + return r; + + dss_pll_disable(pll); + + return 0; +} + +static void dpi_init_pll(struct dpi_data *dpi) +{ + struct dss_pll *pll; + + if (dpi->pll) + return; + + dpi->clk_src = dpi_get_clk_src(dpi); + + pll = dss_pll_find_by_src(dpi->dss, dpi->clk_src); + if (!pll) + return; + + if (dpi_verify_pll(pll)) { + DSSWARN("PLL not operational\n"); + return; + } + + dpi->pll = pll; +} + +/* ----------------------------------------------------------------------------- + * omap_dss_device Operations + */ + +static int dpi_connect(struct omap_dss_device *src, + struct omap_dss_device *dst) +{ + struct dpi_data *dpi = dpi_get_data_from_dssdev(dst); + + dpi_init_pll(dpi); + + return omapdss_device_connect(dst->dss, dst, dst->next); +} + +static void dpi_disconnect(struct omap_dss_device *src, + struct omap_dss_device *dst) +{ + omapdss_device_disconnect(dst, dst->next); +} + static void dpi_display_enable(struct omap_dss_device *dssdev) { struct dpi_data *dpi = dpi_get_data_from_dssdev(dssdev); @@ -457,20 +517,6 @@ static void dpi_display_disable(struct omap_dss_device *dssdev) mutex_unlock(&dpi->lock); } -static void dpi_set_timings(struct omap_dss_device *dssdev, - const struct drm_display_mode *mode) -{ - struct dpi_data *dpi = dpi_get_data_from_dssdev(dssdev); - - DSSDBG("dpi_set_timings\n"); - - mutex_lock(&dpi->lock); - - dpi->pixelclock = mode->clock * 1000; - - mutex_unlock(&dpi->lock); -} - static int dpi_check_timings(struct omap_dss_device *dssdev, struct drm_display_mode *mode) { @@ -511,41 +557,30 @@ static int dpi_check_timings(struct omap_dss_device *dssdev, return 0; } -static int dpi_verify_pll(struct dss_pll *pll) +static void dpi_set_timings(struct omap_dss_device *dssdev, + const struct drm_display_mode *mode) { - int r; + struct dpi_data *dpi = dpi_get_data_from_dssdev(dssdev); - /* do initial setup with the PLL to see if it is operational */ + DSSDBG("dpi_set_timings\n"); - r = dss_pll_enable(pll); - if (r) - return r; + mutex_lock(&dpi->lock); - dss_pll_disable(pll); + dpi->pixelclock = mode->clock * 1000; - return 0; + mutex_unlock(&dpi->lock); } -static void dpi_init_pll(struct dpi_data *dpi) -{ - struct dss_pll *pll; - - if (dpi->pll) - return; - - dpi->clk_src = dpi_get_clk_src(dpi); +static const struct omap_dss_device_ops dpi_ops = { + .connect = dpi_connect, + .disconnect = dpi_disconnect, - pll = dss_pll_find_by_src(dpi->dss, dpi->clk_src); - if (!pll) - return; + .enable = dpi_display_enable, + .disable = dpi_display_disable, - if (dpi_verify_pll(pll)) { - DSSWARN("PLL not operational\n"); - return; - } - - dpi->pll = pll; -} + .check_timings = dpi_check_timings, + .set_timings = dpi_set_timings, +}; /* * Return a hardcoded channel for the DPI output. This should work for @@ -583,33 +618,6 @@ static enum omap_channel dpi_get_channel(struct dpi_data *dpi) } } -static int dpi_connect(struct omap_dss_device *src, - struct omap_dss_device *dst) -{ - struct dpi_data *dpi = dpi_get_data_from_dssdev(dst); - - dpi_init_pll(dpi); - - return omapdss_device_connect(dst->dss, dst, dst->next); -} - -static void dpi_disconnect(struct omap_dss_device *src, - struct omap_dss_device *dst) -{ - omapdss_device_disconnect(dst, dst->next); -} - -static const struct omap_dss_device_ops dpi_ops = { - .connect = dpi_connect, - .disconnect = dpi_disconnect, - - .enable = dpi_display_enable, - .disable = dpi_display_disable, - - .check_timings = dpi_check_timings, - .set_timings = dpi_set_timings, -}; - static int dpi_init_output_port(struct dpi_data *dpi, struct device_node *port) { struct omap_dss_device *out = &dpi->output; @@ -658,6 +666,10 @@ static void dpi_uninit_output_port(struct device_node *port) omapdss_device_cleanup_output(out); } +/* ----------------------------------------------------------------------------- + * Initialisation and Cleanup + */ + static const struct soc_device_attribute dpi_soc_devices[] = { { .machine = "OMAP3[456]*" }, { .machine = "[AD]M37*" },