From patchwork Fri Jan 7 03:19:06 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumit Semwal X-Patchwork-Id: 462461 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p073KbFf018709 for ; Fri, 7 Jan 2011 03:20:37 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756075Ab1AGDUg (ORCPT ); Thu, 6 Jan 2011 22:20:36 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:33830 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756073Ab1AGDUg (ORCPT ); Thu, 6 Jan 2011 22:20:36 -0500 Received: from dlep35.itg.ti.com ([157.170.170.118]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id p073KSKP032064 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 6 Jan 2011 21:20:28 -0600 Received: from legion.dal.design.ti.com (localhost [127.0.0.1]) by dlep35.itg.ti.com (8.13.7/8.13.7) with ESMTP id p073KPKG024392; Thu, 6 Jan 2011 21:20:25 -0600 (CST) Received: from localhost (h83-7.vpn.ti.com [172.24.83.7]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id p073KMf29024; Thu, 6 Jan 2011 21:20:22 -0600 (CST) From: Sumit Semwal To: tomi.valkeinen@nokia.com, paul@pwsan.com, khilman@deeprootsystems.com, hvaibhav@ti.com, linux-omap@vger.kernel.org Cc: Senthilvadivu Guruswamy , Sumit Semwal Subject: [PATCH v4 12/17] OMAP2, 3: DSS2: DISPC: create platform_driver, move init, exit to driver Date: Fri, 7 Jan 2011 08:49:06 +0530 Message-Id: <1294370351-8654-13-git-send-email-sumit.semwal@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1294370351-8654-1-git-send-email-sumit.semwal@ti.com> References: <1294370351-8654-1-git-send-email-sumit.semwal@ti.com> 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-4.2.6 (demeter1.kernel.org [140.211.167.41]); Fri, 07 Jan 2011 03:20:37 +0000 (UTC) diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 751381b..ed8d22d 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -213,9 +213,9 @@ static int omap_dss_probe(struct platform_device *pdev) goto err_dpi; } - r = dispc_init(); + r = dispc_init_platform_driver(); if (r) { - DSSERR("Failed to initialize dispc\n"); + DSSERR("Failed to initialize dispc platform driver\n"); goto err_dispc; } @@ -282,7 +282,7 @@ err_dsi: err_sdi: venc_exit(); err_venc: - dispc_exit(); + dispc_deinit_platform_driver(); err_dispc: dpi_exit(); err_dpi: @@ -302,7 +302,7 @@ static int omap_dss_remove(struct platform_device *pdev) dss_uninitialize_debugfs(); venc_exit(); - dispc_exit(); + dispc_deinit_platform_driver(); dpi_exit(); rfbi_deinit_platform_driver(); if (cpu_is_omap34xx()) { diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index fa40fa5..e19c4cd 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -173,6 +173,7 @@ struct dispc_irq_stats { }; static struct { + struct platform_device *pdev; void __iomem *base; u32 fifo_size[3]; @@ -3079,47 +3080,6 @@ static void _omap_dispc_initial_config(void) dispc_read_plane_fifo_sizes(); } -int dispc_init(void) -{ - u32 rev; - - spin_lock_init(&dispc.irq_lock); - -#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS - spin_lock_init(&dispc.irq_stats_lock); - dispc.irq_stats.last_reset = jiffies; -#endif - - INIT_WORK(&dispc.error_work, dispc_error_worker); - - dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); - if (!dispc.base) { - DSSERR("can't ioremap DISPC\n"); - return -ENOMEM; - } - - enable_clocks(1); - - _omap_dispc_initial_config(); - - _omap_dispc_initialize_irq(); - - dispc_save_context(); - - rev = dispc_read_reg(DISPC_REVISION); - printk(KERN_INFO "OMAP DISPC rev %d.%d\n", - FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); - - enable_clocks(0); - - return 0; -} - -void dispc_exit(void) -{ - iounmap(dispc.base); -} - int dispc_enable_plane(enum omap_plane plane, bool enable) { DSSDBG("dispc_enable_plane %d, %d\n", plane, enable); @@ -3167,3 +3127,66 @@ int dispc_setup_plane(enum omap_plane plane, return r; } + +/* DISPC HW IP initialisation */ +static int omap_dispchw_probe(struct platform_device *pdev) +{ + u32 rev; + dispc.pdev = pdev; + + spin_lock_init(&dispc.irq_lock); + +#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS + spin_lock_init(&dispc.irq_stats_lock); + dispc.irq_stats.last_reset = jiffies; +#endif + + INIT_WORK(&dispc.error_work, dispc_error_worker); + + dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); + if (!dispc.base) { + DSSERR("can't ioremap DISPC\n"); + return -ENOMEM; + } + + enable_clocks(1); + + _omap_dispc_initial_config(); + + _omap_dispc_initialize_irq(); + + dispc_save_context(); + + rev = dispc_read_reg(DISPC_REVISION); + printk(KERN_INFO "OMAP DISPC rev %d.%d\n", + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); + + enable_clocks(0); + + return 0; +} + +static int omap_dispchw_remove(struct platform_device *pdev) +{ + iounmap(dispc.base); + return 0; +} + +static struct platform_driver omap_dispchw_driver = { + .probe = omap_dispchw_probe, + .remove = omap_dispchw_remove, + .driver = { + .name = "omap_dispc", + .owner = THIS_MODULE, + }, +}; + +int dispc_init_platform_driver(void) +{ + return platform_driver_register(&omap_dispchw_driver); +} + +void dispc_deinit_platform_driver(void) +{ + return platform_driver_unregister(&omap_dispchw_driver); +} diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 665ad58..90048b9 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -319,8 +319,8 @@ static inline void dpi_exit(void) #endif /* DISPC */ -int dispc_init(void); -void dispc_exit(void); +int dispc_init_platform_driver(void); +void dispc_deinit_platform_driver(void); void dispc_dump_clocks(struct seq_file *s); void dispc_dump_irqs(struct seq_file *s); void dispc_dump_regs(struct seq_file *s);