Re: [PATCH v7 2/2] drm/bridge: Add NWL MIPI DSI host controller support

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Hi,
On Mon, Oct 21, 2019 at 07:11:12PM +0800, kbuild test robot wrote:
> Hi "Guido,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [cannot apply to v5.4-rc4 next-20191018]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see
> https://stackoverflow.com/a/37406982]

The base for this series is next-20191018 where drm_panel_bridge_add()
list it's second argument (89958b7cd9555a5d82556cc9a1f4c62fffda6f96).

Cheers,
 -- Guido

> 
> url:    https://github.com/0day-ci/linux/commits/Guido-G-nther/dt-bindings-display-bridge-Add-binding-for-NWL-mipi-dsi-host-controller/20191021-180825
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7d194c2100ad2a6dded545887d02754948ca5241
> config: mips-allmodconfig (attached as .config)
> compiler: mips-linux-gcc (GCC) 7.4.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.4.0 make.cross ARCH=mips 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>):
> 
>    drivers/gpu/drm/bridge/nwl-dsi.c: In function 'nwl_dsi_host_attach':
> >> drivers/gpu/drm/bridge/nwl-dsi.c:384:12: error: too few arguments to function 'drm_panel_bridge_add'
>       bridge = drm_panel_bridge_add(panel);
>                ^~~~~~~~~~~~~~~~~~~~
>    In file included from include/drm/drm_crtc.h:44:0,
>                     from include/drm/drm_atomic_helper.h:31,
>                     from drivers/gpu/drm/bridge/nwl-dsi.c:24:
>    include/drm/drm_bridge.h:432:20: note: declared here
>     struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel,
>                        ^~~~~~~~~~~~~~~~~~~~
> 
> vim +/drm_panel_bridge_add +384 drivers/gpu/drm/bridge/nwl-dsi.c
> 
>    358	
>    359	static int nwl_dsi_host_attach(struct mipi_dsi_host *dsi_host,
>    360				       struct mipi_dsi_device *device)
>    361	{
>    362		struct nwl_dsi *dsi = container_of(dsi_host, struct nwl_dsi, dsi_host);
>    363		struct device *dev = dsi->dev;
>    364		struct drm_bridge *bridge;
>    365		struct drm_panel *panel;
>    366		int ret;
>    367	
>    368		DRM_DEV_INFO(dev, "lanes=%u, format=0x%x flags=0x%lx\n", device->lanes,
>    369			     device->format, device->mode_flags);
>    370	
>    371		if (device->lanes < 1 || device->lanes > 4)
>    372			return -EINVAL;
>    373	
>    374		dsi->lanes = device->lanes;
>    375		dsi->format = device->format;
>    376		dsi->dsi_mode_flags = device->mode_flags;
>    377	
>    378		ret = drm_of_find_panel_or_bridge(dsi->dev->of_node, 1, 0, &panel,
>    379						  &bridge);
>    380		if (ret)
>    381			return ret;
>    382	
>    383		if (panel) {
>  > 384			bridge = drm_panel_bridge_add(panel);
>    385			if (IS_ERR(bridge))
>    386				return PTR_ERR(bridge);
>    387		}
>    388	
>    389		dsi->panel_bridge = bridge;
>    390		drm_bridge_add(&dsi->bridge);
>    391	
>    392		return 0;
>    393	}
>    394	
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation


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