[PATCH 22/32] drm: renesas: rz-du: rzg2l_mipi_dsi: convert to the .attach_new op
kernel test robot
lkp at intel.com
Thu Jun 26 23:42:34 UTC 2025
Hi Luca,
kernel test robot noticed the following build errors:
[auto build test ERROR on 1174bf15bd601f17556f721798cd9183e169549a]
url: https://github.com/intel-lab-lkp/linux/commits/Luca-Ceresoli/drm-mipi-dsi-add-sanity-check-of-lane-number-in-mipi_dsi_attach/20250626-005002
base: 1174bf15bd601f17556f721798cd9183e169549a
patch link: https://lore.kernel.org/r/20250625-drm-dsi-host-no-device-ptr-v1-22-e36bc258a7c5%40bootlin.com
patch subject: [PATCH 22/32] drm: renesas: rz-du: rzg2l_mipi_dsi: convert to the .attach_new op
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20250627/202506270718.iCW6cHYD-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250627/202506270718.iCW6cHYD-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506270718.iCW6cHYD-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from include/linux/device.h:15,
from include/linux/dma-mapping.h:5,
from drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c:11:
drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c: In function 'rzg2l_mipi_dsi_host_attach':
>> drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c:712:33: error: 'device' undeclared (first use in this function)
712 | device->format);
| ^~~~~~
include/linux/dev_printk.h:110:37: note: in definition of macro 'dev_printk_index_wrap'
110 | _p_func(dev, fmt, ##__VA_ARGS__); \
| ^~~~~~~~~~~
drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c:711:25: note: in expansion of macro 'dev_err'
711 | dev_err(dsi->dev, "Unsupported format 0x%04x\n",
| ^~~~~~~
drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c:712:33: note: each undeclared identifier is reported only once for each function it appears in
712 | device->format);
| ^~~~~~
include/linux/dev_printk.h:110:37: note: in definition of macro 'dev_printk_index_wrap'
110 | _p_func(dev, fmt, ##__VA_ARGS__); \
| ^~~~~~~~~~~
drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c:711:25: note: in expansion of macro 'dev_err'
711 | dev_err(dsi->dev, "Unsupported format 0x%04x\n",
| ^~~~~~~
vim +/device +712 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 686
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 687 /* -----------------------------------------------------------------------------
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 688 * Host setting
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 689 */
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 690
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 691 static int rzg2l_mipi_dsi_host_attach(struct mipi_dsi_host *host,
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 692 const struct mipi_dsi_bus_fmt *bus_fmt)
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 693 {
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 694 struct rzg2l_mipi_dsi *dsi = host_to_rzg2l_mipi_dsi(host);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 695 int ret;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 696
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 697 if (bus_fmt->lanes > dsi->num_data_lanes) {
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 698 dev_err(dsi->dev,
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 699 "Number of lines of device (%u) exceeds host (%u)\n",
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 700 bus_fmt->lanes, dsi->num_data_lanes);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 701 return -EINVAL;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 702 }
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 703
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 704 switch (mipi_dsi_pixel_format_to_bpp(bus_fmt->format)) {
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 705 case 24:
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 706 break;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 707 case 18:
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 708 break;
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 709 case 16:
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 710 if (!(dsi->info->features & RZ_MIPI_DSI_FEATURE_16BPP)) {
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 711 dev_err(dsi->dev, "Unsupported format 0x%04x\n",
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 @712 device->format);
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 713 return -EINVAL;
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 714 }
a56a6b81d80fdf drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Lad Prabhakar 2025-06-09 715 break;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 716 default:
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 717 dev_err(dsi->dev, "Unsupported format 0x%04x\n", bus_fmt->format);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 718 return -EINVAL;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 719 }
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 720
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 721 dsi->lanes = bus_fmt->lanes;
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 722 dsi->format = bus_fmt->format;
e8120e232c40c1 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c Luca Ceresoli 2025-06-25 723 dsi->mode_flags = bus_fmt->mode_flags;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 724
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 725 dsi->next_bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node,
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 726 1, 0);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 727 if (IS_ERR(dsi->next_bridge)) {
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 728 ret = PTR_ERR(dsi->next_bridge);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 729 dev_err(dsi->dev, "failed to get next bridge: %d\n", ret);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 730 return ret;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 731 }
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 732
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 733 drm_bridge_add(&dsi->bridge);
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 734
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 735 return 0;
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 736 }
7a043f978ed143 drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c Biju Das 2022-09-20 737
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