From patchwork Fri Oct 13 14:59:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 10005029 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5532060216 for ; Fri, 13 Oct 2017 15:02:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45E6A290A0 for ; Fri, 13 Oct 2017 15:02:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3AF67290A2; Fri, 13 Oct 2017 15:02:09 +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=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID 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 860DD290A0 for ; Fri, 13 Oct 2017 15:02:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 876E86EBD9; Fri, 13 Oct 2017 15:00:09 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from galahad.ideasonboard.com (galahad.ideasonboard.com [IPv6:2001:4b98:dc2:45:216:3eff:febb:480d]) by gabe.freedesktop.org (Postfix) with ESMTPS id EBA1C6EBD7 for ; Fri, 13 Oct 2017 15:00:07 +0000 (UTC) Received: from avalon.bb.dnainternet.fi (dfj612ybrt5fhg77mgycy-3.rev.dnainternet.fi [IPv6:2001:14ba:21f5:5b00:2e86:4862:ef6a:2804]) by galahad.ideasonboard.com (Postfix) with ESMTPSA id 9C22321649; Fri, 13 Oct 2017 16:59:18 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1507906758; bh=f6yM5t1Ve/7eyzQz687LzSyKSTvQo9+4GqlEJkgwR4E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DIc9IFkmnPBGaxCAXrq3emb6Qq5iL+ukRCdwgu1YIFSQVowAGLeJpNgtr3J9AfXdc ZrLqLe8zgbTNTMDUQhGN/pPifn/jNa75knWmhFmqq2vAhaIfK752+A4A/6+CwOMeFw XNuJW0Ky7abGwWzFNPmGsPIUJoXTLXbv/Kpe9Vp8= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH 34/48] drm: omapdrm: sdi: Allocate the sdi private data structure dynamically Date: Fri, 13 Oct 2017 17:59:30 +0300 Message-Id: <20171013145944.26557-35-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20171013145944.26557-1-laurent.pinchart@ideasonboard.com> References: <20171013145944.26557-1-laurent.pinchart@ideasonboard.com> Cc: Tomi Valkeinen X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The sdi private data structure is currently stored as a global variable. While no platform with multiple SDI encoders currently exists nor is planned, this doesn't comply with the kernel device model and should thus be fixed. Signed-off-by: Laurent Pinchart Reviewed-by: Sebastian Reichel --- drivers/gpu/drm/omapdrm/dss/sdi.c | 122 +++++++++++++++++++++----------------- 1 file changed, 69 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/sdi.c b/drivers/gpu/drm/omapdrm/dss/sdi.c index ac436826914a..a35dc51c5a6a 100644 --- a/drivers/gpu/drm/omapdrm/dss/sdi.c +++ b/drivers/gpu/drm/omapdrm/dss/sdi.c @@ -31,7 +31,7 @@ #include "omapdss.h" #include "dss.h" -static struct { +struct sdi_device { struct platform_device *pdev; struct dss_device *dss; @@ -43,9 +43,9 @@ static struct { int datapairs; struct omap_dss_device output; +}; - bool port_initialized; -} sdi; +#define dssdev_to_sdi(dssdev) container_of(dssdev, struct sdi_device, output) struct sdi_clk_calc_ctx { unsigned long pck_min, pck_max; @@ -77,9 +77,9 @@ static bool dpi_calc_dss_cb(unsigned long fck, void *data) dpi_calc_dispc_cb, ctx); } -static int sdi_calc_clock_div(unsigned long pclk, - unsigned long *fck, - struct dispc_clock_info *dispc_cinfo) +static int sdi_calc_clock_div(struct sdi_device *sdi, unsigned long pclk, + unsigned long *fck, + struct dispc_clock_info *dispc_cinfo) { int i; struct sdi_clk_calc_ctx ctx; @@ -101,7 +101,7 @@ static int sdi_calc_clock_div(unsigned long pclk, ctx.pck_min = 0; ctx.pck_max = pclk + 1000 * i * i * i; - ok = dss_div_calc(sdi.dss, pclk, ctx.pck_min, + ok = dss_div_calc(sdi->dss, pclk, ctx.pck_min, dpi_calc_dss_cb, &ctx); if (ok) { *fck = ctx.fck; @@ -113,26 +113,27 @@ static int sdi_calc_clock_div(unsigned long pclk, return -EINVAL; } -static void sdi_config_lcd_manager(struct omap_dss_device *dssdev) +static void sdi_config_lcd_manager(struct sdi_device *sdi) { - enum omap_channel channel = dssdev->dispc_channel; + enum omap_channel channel = sdi->output.dispc_channel; - sdi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS; + sdi->mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS; - sdi.mgr_config.stallmode = false; - sdi.mgr_config.fifohandcheck = false; + sdi->mgr_config.stallmode = false; + sdi->mgr_config.fifohandcheck = false; - sdi.mgr_config.video_port_width = 24; - sdi.mgr_config.lcden_sig_polarity = 1; + sdi->mgr_config.video_port_width = 24; + sdi->mgr_config.lcden_sig_polarity = 1; - dss_mgr_set_lcd_config(channel, &sdi.mgr_config); + dss_mgr_set_lcd_config(channel, &sdi->mgr_config); } static int sdi_display_enable(struct omap_dss_device *dssdev) { - struct omap_dss_device *out = &sdi.output; + struct sdi_device *sdi = dssdev_to_sdi(dssdev); + struct omap_dss_device *out = &sdi->output; enum omap_channel channel = dssdev->dispc_channel; - struct videomode *vm = &sdi.vm; + struct videomode *vm = &sdi->vm; unsigned long fck; struct dispc_clock_info dispc_cinfo; unsigned long pck; @@ -143,7 +144,7 @@ static int sdi_display_enable(struct omap_dss_device *dssdev) return -ENODEV; } - r = regulator_enable(sdi.vdds_sdi_reg); + r = regulator_enable(sdi->vdds_sdi_reg); if (r) goto err_reg_enable; @@ -154,11 +155,11 @@ static int sdi_display_enable(struct omap_dss_device *dssdev) /* 15.5.9.1.2 */ vm->flags |= DISPLAY_FLAGS_PIXDATA_POSEDGE | DISPLAY_FLAGS_SYNC_POSEDGE; - r = sdi_calc_clock_div(vm->pixelclock, &fck, &dispc_cinfo); + r = sdi_calc_clock_div(sdi, vm->pixelclock, &fck, &dispc_cinfo); if (r) goto err_calc_clock_div; - sdi.mgr_config.clock_info = dispc_cinfo; + sdi->mgr_config.clock_info = dispc_cinfo; pck = fck / dispc_cinfo.lck_div / dispc_cinfo.pck_div; @@ -172,11 +173,11 @@ static int sdi_display_enable(struct omap_dss_device *dssdev) dss_mgr_set_timings(channel, vm); - r = dss_set_fck_rate(sdi.dss, fck); + r = dss_set_fck_rate(sdi->dss, fck); if (r) goto err_set_dss_clock_div; - sdi_config_lcd_manager(dssdev); + sdi_config_lcd_manager(sdi); /* * LCLK and PCLK divisors are located in shadow registers, and we @@ -189,10 +190,10 @@ static int sdi_display_enable(struct omap_dss_device *dssdev) * need to care about the shadow register mechanism for pck-free. The * exact reason for this is unknown. */ - dispc_mgr_set_clock_div(channel, &sdi.mgr_config.clock_info); + dispc_mgr_set_clock_div(channel, &sdi->mgr_config.clock_info); - dss_sdi_init(sdi.dss, sdi.datapairs); - r = dss_sdi_enable(sdi.dss); + dss_sdi_init(sdi->dss, sdi->datapairs); + r = dss_sdi_enable(sdi->dss); if (r) goto err_sdi_enable; mdelay(2); @@ -204,40 +205,45 @@ static int sdi_display_enable(struct omap_dss_device *dssdev) return 0; err_mgr_enable: - dss_sdi_disable(sdi.dss); + dss_sdi_disable(sdi->dss); err_sdi_enable: err_set_dss_clock_div: err_calc_clock_div: dispc_runtime_put(); err_get_dispc: - regulator_disable(sdi.vdds_sdi_reg); + regulator_disable(sdi->vdds_sdi_reg); err_reg_enable: return r; } static void sdi_display_disable(struct omap_dss_device *dssdev) { + struct sdi_device *sdi = dssdev_to_sdi(dssdev); enum omap_channel channel = dssdev->dispc_channel; dss_mgr_disable(channel); - dss_sdi_disable(sdi.dss); + dss_sdi_disable(sdi->dss); dispc_runtime_put(); - regulator_disable(sdi.vdds_sdi_reg); + regulator_disable(sdi->vdds_sdi_reg); } static void sdi_set_timings(struct omap_dss_device *dssdev, struct videomode *vm) { - sdi.vm = *vm; + struct sdi_device *sdi = dssdev_to_sdi(dssdev); + + sdi->vm = *vm; } static void sdi_get_timings(struct omap_dss_device *dssdev, struct videomode *vm) { - *vm = sdi.vm; + struct sdi_device *sdi = dssdev_to_sdi(dssdev); + + *vm = sdi->vm; } static int sdi_check_timings(struct omap_dss_device *dssdev, @@ -254,21 +260,21 @@ static int sdi_check_timings(struct omap_dss_device *dssdev, return 0; } -static int sdi_init_regulator(void) +static int sdi_init_regulator(struct sdi_device *sdi) { struct regulator *vdds_sdi; - if (sdi.vdds_sdi_reg) + if (sdi->vdds_sdi_reg) return 0; - vdds_sdi = devm_regulator_get(&sdi.pdev->dev, "vdds_sdi"); + vdds_sdi = devm_regulator_get(&sdi->pdev->dev, "vdds_sdi"); if (IS_ERR(vdds_sdi)) { if (PTR_ERR(vdds_sdi) != -EPROBE_DEFER) DSSERR("can't get VDDS_SDI regulator\n"); return PTR_ERR(vdds_sdi); } - sdi.vdds_sdi_reg = vdds_sdi; + sdi->vdds_sdi_reg = vdds_sdi; return 0; } @@ -276,10 +282,11 @@ static int sdi_init_regulator(void) static int sdi_connect(struct omap_dss_device *dssdev, struct omap_dss_device *dst) { + struct sdi_device *sdi = dssdev_to_sdi(dssdev); enum omap_channel channel = dssdev->dispc_channel; int r; - r = sdi_init_regulator(); + r = sdi_init_regulator(sdi); if (r) return r; @@ -325,11 +332,11 @@ static const struct omapdss_sdi_ops sdi_ops = { .get_timings = sdi_get_timings, }; -static void sdi_init_output(struct platform_device *pdev) +static void sdi_init_output(struct sdi_device *sdi) { - struct omap_dss_device *out = &sdi.output; + struct omap_dss_device *out = &sdi->output; - out->dev = &pdev->dev; + out->dev = &sdi->pdev->dev; out->id = OMAP_DSS_OUTPUT_SDI; out->output_type = OMAP_DISPLAY_TYPE_SDI; out->name = "sdi.0"; @@ -342,23 +349,28 @@ static void sdi_init_output(struct platform_device *pdev) omapdss_register_output(out); } -static void sdi_uninit_output(struct platform_device *pdev) +static void sdi_uninit_output(struct sdi_device *sdi) { - struct omap_dss_device *out = &sdi.output; - - omapdss_unregister_output(out); + omapdss_unregister_output(&sdi->output); } int sdi_init_port(struct dss_device *dss, struct platform_device *pdev, struct device_node *port) { + struct sdi_device *sdi; struct device_node *ep; u32 datapairs; int r; + sdi = kzalloc(sizeof(*sdi), GFP_KERNEL); + if (!sdi) + return -ENOMEM; + ep = of_get_next_child(port, NULL); - if (!ep) - return 0; + if (!ep) { + r = 0; + goto err_free; + } r = of_property_read_u32(ep, "datapairs", &datapairs); if (r) { @@ -366,29 +378,33 @@ int sdi_init_port(struct dss_device *dss, struct platform_device *pdev, goto err_datapairs; } - sdi.datapairs = datapairs; - sdi.dss = dss; + sdi->datapairs = datapairs; + sdi->dss = dss; of_node_put(ep); - sdi.pdev = pdev; + sdi->pdev = pdev; + port->data = sdi; - sdi_init_output(pdev); - - sdi.port_initialized = true; + sdi_init_output(sdi); return 0; err_datapairs: of_node_put(ep); +err_free: + kfree(sdi); return r; } void sdi_uninit_port(struct device_node *port) { - if (!sdi.port_initialized) + struct sdi_device *sdi = port->data; + + if (!sdi) return; - sdi_uninit_output(sdi.pdev); + sdi_uninit_output(sdi); + kfree(sdi); }