From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sumit Semwal Subject: [PATCH v8 09/18] OMAP2,3: DSS2: Build omap_device for each DSS HWIP Date: Fri, 21 Jan 2011 20:20:32 +0530 Message-ID: <1295621441-16678-10-git-send-email-sumit.semwal@ti.com> References: <1295621441-16678-1-git-send-email-sumit.semwal@ti.com> Return-path: Received: from devils.ext.ti.com ([198.47.26.153]:58317 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753318Ab1AUOvu (ORCPT ); Fri, 21 Jan 2011 09:51:50 -0500 In-Reply-To: <1295621441-16678-1-git-send-email-sumit.semwal@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: tomi.valkeinen@nokia.com, paul@pwsan.com, khilman@ti.com, hvaibhav@ti.com, linux-omap@vger.kernel.org Cc: Senthilvadivu Guruswamy , Sumit Semwal From: Senthilvadivu Guruswamy Looks up the hwmod database for each of the given DSS HW IP and builds omap_device which inturn does the platform device register for each of DSS HW IP Signed-off-by: Senthilvadivu Guruswamy Signed-off-by: Sumit Semwal --- arch/arm/mach-omap2/display.c | 50 +++++++++++++++++++++++++++++ arch/arm/plat-omap/include/plat/display.h | 5 +++ 2 files changed, 55 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 6e21cb8..5c0a78b 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -23,6 +23,8 @@ #include #include +#include +#include static struct platform_device omap_display_device = { .name = "omap_display", @@ -32,10 +34,58 @@ static struct platform_device omap_display_device = { }, }; +static struct omap_device_pm_latency omap_dss_latency[] = { + [0] = { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + }, +}; + int __init omap_display_init(struct omap_dss_board_info *board_data) { int r = 0; + struct omap_hwmod *oh; + struct omap_device *od; + int i; + struct omap_display_platform_data pdata; + + /* + * omap: valid DSS hwmod names + * omap2,3: dss_core, dss_dispc, dss_rfbi, dss_venc + * omap3: dss_dsi1 + */ + char *oh_name[] = {"dss_core", "dss_dispc", "dss_rfbi", "dss_venc", "dss_dsi1"}; + char *dev_name[] = { "omap_dss", "omap_dispc", "omap_rfbi", "omap_venc", "omap_dsi1" }; + int oh_count; + + memset(&pdata, 0, sizeof(pdata)); + + if (cpu_is_omap24xx()) + oh_count = ARRAY_SIZE(oh_name) - 1; + /* last hwmod dev in oh_name is not available for omap2 */ + else + oh_count = ARRAY_SIZE(oh_name); + + pdata.board_data = board_data; + pdata.board_data->get_last_off_on_transaction_id = NULL; + + for (i = 0; i < oh_count; i++) { + oh = omap_hwmod_lookup(oh_name[i]); + if (!oh) { + pr_err("Could not look up %s\n", oh_name[i]); + return -ENODEV; + } + od = omap_device_build(dev_name[i], -1, oh, &pdata, + sizeof(struct omap_display_platform_data), + omap_dss_latency, + ARRAY_SIZE(omap_dss_latency), 0); + + if (WARN((IS_ERR(od)), "Could not build omap_device for %s\n", + oh_name[i])) + return -ENODEV; + } omap_display_device.dev.platform_data = board_data; r = platform_device_register(&omap_display_device); diff --git a/arch/arm/plat-omap/include/plat/display.h b/arch/arm/plat-omap/include/plat/display.h index 0f140ec..2fb057e 100644 --- a/arch/arm/plat-omap/include/plat/display.h +++ b/arch/arm/plat-omap/include/plat/display.h @@ -237,6 +237,11 @@ static inline int omap_display_init(struct omap_dss_board_info *board_data) } #endif +struct omap_display_platform_data { + struct omap_dss_board_info *board_data; + /* TODO: Additional members to be added when PM is considered */ +}; + struct omap_video_timings { /* Unit: pixels */ u16 x_res; -- 1.7.1