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author | Senthilvadivu Guruswamy <svadivu@ti.com> | 2011-01-24 06:21:56 (GMT) |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-03-11 13:46:19 (GMT) |
commit | cf07f5316215972e987c63b0a75a922c89813781 (patch) | |
tree | 08abe66ffc6427af41ee43df0847598ce7eee8df /arch/arm/mach-omap2 | |
parent | 8ba775ca0d375ab42404ffd7a1a38326a7b21321 (diff) | |
download | linux-cf07f5316215972e987c63b0a75a922c89813781.tar.xz |
OMAP2,3: DSS2: Build omap_device for each DSS HWIP
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 <svadivu@ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r-- | arch/arm/mach-omap2/display.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index b18db84..ee83030 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -23,6 +23,8 @@ #include <linux/err.h> #include <plat/display.h> +#include <plat/omap_hwmod.h> +#include <plat/omap_device.h> static struct platform_device omap_display_device = { .name = "omapdss", @@ -32,9 +34,59 @@ 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[] = { "omapdss_dss", "omapdss_dispc", "omapdss_rfbi", + "omapdss_venc", "omapdss_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); |