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| author | Tony Lindgren <tony@atomide.com> | 2018-04-16 10:24:14 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-04-30 12:04:51 -0700 |
| commit | 71941002ad140cba0ee922a2bc9f5dcf9ac70b54 (patch) | |
| tree | 31dd6f199d4ac5d91f43ecfdde3902e0db58ab34 /arch | |
| parent | 103fd8e7ac1f5f8e332970a95c79cd32c537798a (diff) | |
| download | linux-71941002ad140cba0ee922a2bc9f5dcf9ac70b54.tar.bz2 | |
ARM: OMAP2+: Only probe SDMA via ti-sysc if configured in dts
We still have some SDMA probing using omap_device_build() for the
arch/arm/plat-omap/dma.c part that the dmaengine driver then uses.
So we still need to ensure that omap_device_build() works even if we
probe and manage the dmaengine driver via ti-sysc. And we don't want
to call dev_pm_domain_set() as otherwise we'd also have omap_device
try to manage the hardware in addition to ti-sysc.
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/omap_device.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c index 3b829a50d1db..ac219b9e6a4c 100644 --- a/arch/arm/mach-omap2/omap_device.c +++ b/arch/arm/mach-omap2/omap_device.c @@ -143,7 +143,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev) struct resource res; const char *oh_name; int oh_cnt, i, ret = 0; - bool device_active = false; + bool device_active = false, skip_pm_domain = false; oh_cnt = of_property_count_strings(node, "ti,hwmods"); if (oh_cnt <= 0) { @@ -151,8 +151,15 @@ static int omap_device_build_from_dt(struct platform_device *pdev) return -ENODEV; } + /* SDMA still needs special handling for omap_device_build() */ + ret = of_property_read_string_index(node, "ti,hwmods", 0, &oh_name); + if (!ret && (!strncmp("dma_system", oh_name, 10) || + !strncmp("dma", oh_name, 3))) + skip_pm_domain = true; + /* Use ti-sysc driver instead of omap_device? */ - if (!omap_hwmod_parse_module_range(NULL, node, &res)) + if (!skip_pm_domain && + !omap_hwmod_parse_module_range(NULL, node, &res)) return -ENODEV; hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL); @@ -191,11 +198,12 @@ static int omap_device_build_from_dt(struct platform_device *pdev) r->name = dev_name(&pdev->dev); } - dev_pm_domain_set(&pdev->dev, &omap_device_pm_domain); - - if (device_active) { - omap_device_enable(pdev); - pm_runtime_set_active(&pdev->dev); + if (!skip_pm_domain) { + dev_pm_domain_set(&pdev->dev, &omap_device_pm_domain); + if (device_active) { + omap_device_enable(pdev); + pm_runtime_set_active(&pdev->dev); + } } odbfd_exit1: |