search for: of_find_device_by_nod

The mediatek DRM driver can be configured for compile testing with CONFIG_OF disabled, but then fails to link: drivers/gpu/built-in.o: In function `mtk_drm_bind': analogix_dp_reg.c:(.text+0x52888): undefined reference to `of_find_device_by_node' analogix_dp_reg.c:(.text+0x52930): undefined reference to `of_find_device_by_node' This adds an explicit Kconfig dependency. Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/gpu/drm/mediatek/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/me...

A couple of new warnings and build errors appeared through the DRM tree in linux-next after the merge window opened. The first patch here is for scripts/headers_check.pl, but as the bug is only present in drm-next at the moment, it would be good to add all five patches to that tree before they make it into mainline. It's likely that some of these have already been fixed since this

...pass that to tegra_mc_flush(). > +{ > + struct of_phandle_args args; > + struct platform_device *pdev; > + int ret; > + > + ret = of_parse_phandle_with_fixed_args(dev->of_node, "mc", > + 1, 0, &args); > + if (ret) > + return ret; > + > + pdev = of_find_device_by_node(args.np); > + if (!pdev) > + return -EINVAL; This is wrong, you need to handle -EPROBE_DEFER here. > + > + *mc = platform_get_drvdata(pdev); > + if (!*mc) > + return -EINVAL; > + > + *swgroup = args.args[0]; > + > + return 0; > +} > + > static int nouvea...

...au_platform_get_mc(struct device *dev, + struct tegra_mc **mc, unsigned int *swgroup) +{ + struct of_phandle_args args; + struct platform_device *pdev; + int ret; + + ret = of_parse_phandle_with_fixed_args(dev->of_node, "mc", + 1, 0, &args); + if (ret) + return ret; + + pdev = of_find_device_by_node(args.np); + if (!pdev) + return -EINVAL; + + *mc = platform_get_drvdata(pdev); + if (!*mc) + return -EINVAL; + + *swgroup = args.args[0]; + + return 0; +} + static int nouveau_platform_probe(struct platform_device *pdev) { struct nouveau_platform_gpu *gpu; @@ -118,6 +156,10 @@ static int nou...

...if (!arch_data) - return -ENOMEM; + return ERR_PTR(-ENOMEM); for (i = 0, tmp = arch_data; i < num_iommus; i++, tmp++) { np = of_parse_phandle(dev->of_node, "iommus", i); if (!np) { kfree(arch_data); - return -EINVAL; + return ERR_PTR(-EINVAL); } pdev = of_find_device_by_node(np); if (!pdev) { of_node_put(np); kfree(arch_data); - return -ENODEV; + return ERR_PTR(-ENODEV); } oiommu = platform_get_drvdata(pdev); if (!oiommu) { of_node_put(np); kfree(arch_data); - return -EINVAL; + return ERR_PTR(-EINVAL); } tmp->iommu_dev...

...>> + struct of_phandle_args args; >> + struct platform_device *pdev; >> + int ret; >> + >> + ret = of_parse_phandle_with_fixed_args(dev->of_node, "mc", >> + 1, 0, &args); >> + if (ret) >> + return ret; >> + >> + pdev = of_find_device_by_node(args.np); >> + if (!pdev) >> + return -EINVAL; > This is wrong, you need to handle -EPROBE_DEFER here. Indeed. Will fix. > >> + >> + *mc = platform_get_drvdata(pdev); >> + if (!*mc) >> + return -EINVAL; >> + >> + *swgroup = args.args[0]; >...

On Tue, Jan 06, 2015 at 08:13:01PM +0800, Vince Hsu wrote: > > On 01/06/2015 07:36 PM, Thierry Reding wrote: > >* PGP Signed by an unknown key > > > >On Tue, Jan 06, 2015 at 05:34:01PM +0800, Vince Hsu wrote: > >>On 01/05/2015 11:25 PM, Thierry Reding wrote: > >>>>Old Signed by an unknown key > >>>On Thu, Dec 25, 2014 at 10:42:58AM

...if (ret) return ERR_PTR(ret); pdev = of_find_device_by_node(args.np); if (!pdev) return NULL;...

Hi, here is a patch-set to rename iommu_param to dev_iommu and establish it as a struct for generic per-device iommu-data. Also move the iommu_fwspec pointer from struct device into dev_iommu to have less iommu-related pointers in struct device. The bigger part of this patch-set moves the iommu_priv pointer from struct iommu_fwspec to dev_iommu, making is usable for iommu-drivers which do not

..., &owner->controllers, owner_node) + for_each_sysmmu(dev, data) device_link_del(data->link); } static int exynos_iommu_of_xlate(struct device *dev, struct of_phandle_args *spec) { - struct exynos_iommu_owner *owner = dev->archdata.iommu; struct platform_device *sysmmu = of_find_device_by_node(spec->np); struct sysmmu_drvdata *data, *entry; @@ -1302,22 +1317,28 @@ static int exynos_iommu_of_xlate(struct device *dev, if (!data) return -ENODEV; - if (!owner) { - owner = kzalloc(sizeof(*owner), GFP_KERNEL); - if (!owner) - return -ENOMEM; + data->master = dev; - INI...

Hi, This series includes some pieces of fixes to complete the GK20A power on/off sequences and add the suspend/resume support. The patches 1/11 - 4/11 are based on the linux-next-20141219. The patches 5/11 - 11/11 are based on the branch "linux-3.19" of Ben Skeggs's tree (http://cgit.freedesktop.org/~darktama/nouveau). Thanks, Vince Vince Hsu (4): (linux-next-20141219) ARM:

Hi, here is a patch-set to remove all calls of iommu_group_get_for_dev() from the IOMMU drivers and move the per-device group setup and default domain allocation into the IOMMU core code. This eliminates some ugly back and forth between IOMMU core code and the IOMMU drivers, where the driver called iommu_group_get_for_dev() which itself called back into the driver. The patch-set started as a

Hi, here is a patch-set to remove all calls of iommu_group_get_for_dev() from the IOMMU drivers and move the per-device group setup and default domain allocation into the IOMMU core code. This eliminates some ugly back and forth between IOMMU core code and the IOMMU drivers, where the driver called iommu_group_get_for_dev() which itself called back into the driver. The patch-set started as a

Hi, here is the second version of this patch-set. The first version with some more introductory text can be found here: https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/ Changes v1->v2: * Rebased to v5.7-rc1 * Re-wrote the arm-smmu changes as suggested by Robin Murphy * Re-worked the Exynos patches to hopefully not break the driver anymore * Fixed a missing

Hi, here is the second version of this patch-set. The first version with some more introductory text can be found here: https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/ Changes v1->v2: * Rebased to v5.7-rc1 * Re-wrote the arm-smmu changes as suggested by Robin Murphy * Re-worked the Exynos patches to hopefully not break the driver anymore * Fixed a missing

Hi, here is the third version of this patch-set. Older versions can be found here: v1: https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/ (Has some more introductory text) v2: https://lore.kernel.org/lkml/20200414131542.25608-1-joro at 8bytes.org/ Changes v2 -> v3: * Rebased v5.7-rc3 * Added a missing iommu_group_put() as reported by Lu Baolu. * Added a