diff mbox series

drm: mediatek: fix device passed to cmdq

Message ID 20200406051131.225748-1-hsinyi@chromium.org (mailing list archive)
State New, archived
Headers show
Series drm: mediatek: fix device passed to cmdq | expand

Commit Message

Hsin-Yi Wang April 6, 2020, 5:11 a.m. UTC
drm device is now probed from mmsys. We need to use mmsys device to get gce
nodes. Fix following errors:

[    0.740068] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
[    0.748721] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
...
[    2.659645] mediatek-drm mediatek-drm.1.auto: failed to request channel
[    2.666270] mediatek-drm mediatek-drm.1.auto: failed to request channel

Fixes: 1d367541aded ("soc / drm: mediatek: Fix mediatek-drm device probing")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 6 ++++--
 drivers/gpu/drm/mediatek/mtk_drm_drv.c  | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

Comments

Hsin-Yi Wang April 6, 2020, 7:17 a.m. UTC | #1
The patch depends on
https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git
branch v5.6-next/soc

On Mon, Apr 6, 2020 at 3:12 PM kbuild test robot <lkp@intel.com> wrote:
>
> Hi Hsin-Yi,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on clk/clk-next]
> [cannot apply to arm-soc/for-next xlnx/master linus/master v5.6 next-20200405]
> [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]
>
> url:    https://github.com/0day-ci/linux/commits/Hsin-Yi-Wang/drm-mediatek-fix-device-passed-to-cmdq/20200406-132804
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
> config: arm64-randconfig-a001-20200406 (attached as .config)
> compiler: aarch64-linux-gcc (GCC) 9.3.0
> 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=9.3.0 make.cross ARCH=arm64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
>    drivers/gpu/drm/mediatek/mtk_drm_crtc.c: In function 'mtk_drm_crtc_create':
> >> drivers/gpu/drm/mediatek/mtk_drm_crtc.c:824:29: error: 'struct mtk_drm_crtc' has no member named 'mmsys_dev'
>      824 |    cmdq_mbox_create(mtk_crtc->mmsys_dev,
>          |                             ^~
>    drivers/gpu/drm/mediatek/mtk_drm_crtc.c:832:43: error: 'struct mtk_drm_crtc' has no member named 'mmsys_dev'
>      832 |  ret = of_property_read_u32_index(mtk_crtc->mmsys_dev->of_node,
>          |                                           ^~
>
> vim +824 drivers/gpu/drm/mediatek/mtk_drm_crtc.c
>
>    724
>    725  int mtk_drm_crtc_create(struct drm_device *drm_dev,
>    726                          const enum mtk_ddp_comp_id *path, unsigned int path_len)
>    727  {
>    728          struct mtk_drm_private *priv = drm_dev->dev_private;
>    729          struct device *dev = drm_dev->dev;
>    730          struct mtk_drm_crtc *mtk_crtc;
>    731          unsigned int num_comp_planes = 0;
>    732          int pipe = priv->num_pipes;
>    733          int ret;
>    734          int i;
>    735          bool has_ctm = false;
>    736          uint gamma_lut_size = 0;
>    737
>    738          if (!path)
>    739                  return 0;
>    740
>    741          for (i = 0; i < path_len; i++) {
>    742                  enum mtk_ddp_comp_id comp_id = path[i];
>    743                  struct device_node *node;
>    744
>    745                  node = priv->comp_node[comp_id];
>    746                  if (!node) {
>    747                          dev_info(dev,
>    748                                   "Not creating crtc %d because component %d is disabled or missing\n",
>    749                                   pipe, comp_id);
>    750                          return 0;
>    751                  }
>    752          }
>    753
>    754          mtk_crtc = devm_kzalloc(dev, sizeof(*mtk_crtc), GFP_KERNEL);
>    755          if (!mtk_crtc)
>    756                  return -ENOMEM;
>    757
>    758          mtk_crtc->config_regs = priv->config_regs;
>    759          mtk_crtc->ddp_comp_nr = path_len;
>    760          mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
>    761                                                  sizeof(*mtk_crtc->ddp_comp),
>    762                                                  GFP_KERNEL);
>    763          if (!mtk_crtc->ddp_comp)
>    764                  return -ENOMEM;
>    765
>    766          mtk_crtc->mutex = mtk_disp_mutex_get(priv->mutex_dev, pipe);
>    767          if (IS_ERR(mtk_crtc->mutex)) {
>    768                  ret = PTR_ERR(mtk_crtc->mutex);
>    769                  dev_err(dev, "Failed to get mutex: %d\n", ret);
>    770                  return ret;
>    771          }
>    772
>    773          for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
>    774                  enum mtk_ddp_comp_id comp_id = path[i];
>    775                  struct mtk_ddp_comp *comp;
>    776                  struct device_node *node;
>    777
>    778                  node = priv->comp_node[comp_id];
>    779                  comp = priv->ddp_comp[comp_id];
>    780                  if (!comp) {
>    781                          dev_err(dev, "Component %pOF not initialized\n", node);
>    782                          ret = -ENODEV;
>    783                          return ret;
>    784                  }
>    785
>    786                  mtk_crtc->ddp_comp[i] = comp;
>    787
>    788                  if (comp->funcs) {
>    789                          if (comp->funcs->gamma_set)
>    790                                  gamma_lut_size = MTK_LUT_SIZE;
>    791
>    792                          if (comp->funcs->ctm_set)
>    793                                  has_ctm = true;
>    794                  }
>    795          }
>    796
>    797          for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
>    798                  num_comp_planes += mtk_drm_crtc_num_comp_planes(mtk_crtc, i);
>    799
>    800          mtk_crtc->planes = devm_kcalloc(dev, num_comp_planes,
>    801                                          sizeof(struct drm_plane), GFP_KERNEL);
>    802
>    803          for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
>    804                  ret = mtk_drm_crtc_init_comp_planes(drm_dev, mtk_crtc, i,
>    805                                                      pipe);
>    806                  if (ret)
>    807                          return ret;
>    808          }
>    809
>    810          ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, &mtk_crtc->planes[0],
>    811                                  mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] :
>    812                                  NULL, pipe);
>    813          if (ret < 0)
>    814                  return ret;
>    815
>    816          if (gamma_lut_size)
>    817                  drm_mode_crtc_set_gamma_size(&mtk_crtc->base, gamma_lut_size);
>    818          drm_crtc_enable_color_mgmt(&mtk_crtc->base, 0, has_ctm, gamma_lut_size);
>    819          priv->num_pipes++;
>    820          mutex_init(&mtk_crtc->hw_lock);
>    821
>    822  #if IS_REACHABLE(CONFIG_MTK_CMDQ)
>    823          mtk_crtc->cmdq_client =
>  > 824                          cmdq_mbox_create(mtk_crtc->mmsys_dev,
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Enric Balletbo i Serra April 6, 2020, 3:25 p.m. UTC | #2
Hi Hsin-Yi

Thanks for sending the patch upstream

On 6/4/20 7:11, Hsin-Yi Wang wrote:
> drm device is now probed from mmsys. We need to use mmsys device to get gce
> nodes. Fix following errors:
> 
> [    0.740068] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
> [    0.748721] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
> ...
> [    2.659645] mediatek-drm mediatek-drm.1.auto: failed to request channel
> [    2.666270] mediatek-drm mediatek-drm.1.auto: failed to request channel
> 
> Fixes: 1d367541aded ("soc / drm: mediatek: Fix mediatek-drm device probing")
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>

Right, the mmsys device is now the parent of the drm device.

Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

Also I tested drm with the patch applied and adding the gce client register to
my device-tree.

Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

Thanks,
 Enric

> ---
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 6 ++++--
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c  | 3 ++-
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index 615a54e60fe2..8621f0289399 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -822,14 +822,16 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
>  
>  #if IS_REACHABLE(CONFIG_MTK_CMDQ)
>  	mtk_crtc->cmdq_client =
> -			cmdq_mbox_create(dev, drm_crtc_index(&mtk_crtc->base),
> +			cmdq_mbox_create(mtk_crtc->mmsys_dev,
> +					 drm_crtc_index(&mtk_crtc->base),
>  					 2000);
>  	if (IS_ERR(mtk_crtc->cmdq_client)) {
>  		dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n",
>  			drm_crtc_index(&mtk_crtc->base));
>  		mtk_crtc->cmdq_client = NULL;
>  	}
> -	ret = of_property_read_u32_index(dev->of_node, "mediatek,gce-events",
> +	ret = of_property_read_u32_index(mtk_crtc->mmsys_dev->of_node,
> +					 "mediatek,gce-events",
>  					 drm_crtc_index(&mtk_crtc->base),
>  					 &mtk_crtc->cmdq_event);
>  	if (ret)
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index e2bb0d19ef99..dc78e86bccc0 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -517,7 +517,8 @@ static int mtk_drm_probe(struct platform_device *pdev)
>  				goto err_node;
>  			}
>  
> -			ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL);
> +			ret = mtk_ddp_comp_init(dev->parent, node, comp,
> +						comp_id, NULL);
>  			if (ret) {
>  				of_node_put(node);
>  				goto err_node;
>
Chun-Kuang Hu April 6, 2020, 4:56 p.m. UTC | #3
Hi, Hsin-Yi:

Hsin-Yi Wang <hsinyi@chromium.org> 於 2020年4月6日 週一 下午1:12寫道:
>
> drm device is now probed from mmsys. We need to use mmsys device to get gce
> nodes. Fix following errors:
>
> [    0.740068] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
> [    0.748721] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
> ...
> [    2.659645] mediatek-drm mediatek-drm.1.auto: failed to request channel
> [    2.666270] mediatek-drm mediatek-drm.1.auto: failed to request channel

Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

>
> Fixes: 1d367541aded ("soc / drm: mediatek: Fix mediatek-drm device probing")
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 6 ++++--
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c  | 3 ++-
>  2 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index 615a54e60fe2..8621f0289399 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -822,14 +822,16 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
>
>  #if IS_REACHABLE(CONFIG_MTK_CMDQ)
>         mtk_crtc->cmdq_client =
> -                       cmdq_mbox_create(dev, drm_crtc_index(&mtk_crtc->base),
> +                       cmdq_mbox_create(mtk_crtc->mmsys_dev,
> +                                        drm_crtc_index(&mtk_crtc->base),
>                                          2000);
>         if (IS_ERR(mtk_crtc->cmdq_client)) {
>                 dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n",
>                         drm_crtc_index(&mtk_crtc->base));
>                 mtk_crtc->cmdq_client = NULL;
>         }
> -       ret = of_property_read_u32_index(dev->of_node, "mediatek,gce-events",
> +       ret = of_property_read_u32_index(mtk_crtc->mmsys_dev->of_node,
> +                                        "mediatek,gce-events",
>                                          drm_crtc_index(&mtk_crtc->base),
>                                          &mtk_crtc->cmdq_event);
>         if (ret)
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index e2bb0d19ef99..dc78e86bccc0 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -517,7 +517,8 @@ static int mtk_drm_probe(struct platform_device *pdev)
>                                 goto err_node;
>                         }
>
> -                       ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL);
> +                       ret = mtk_ddp_comp_init(dev->parent, node, comp,
> +                                               comp_id, NULL);
>                         if (ret) {
>                                 of_node_put(node);
>                                 goto err_node;
> --
> 2.26.0.292.g33ef6b2f38-goog
>
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 615a54e60fe2..8621f0289399 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -822,14 +822,16 @@  int mtk_drm_crtc_create(struct drm_device *drm_dev,
 
 #if IS_REACHABLE(CONFIG_MTK_CMDQ)
 	mtk_crtc->cmdq_client =
-			cmdq_mbox_create(dev, drm_crtc_index(&mtk_crtc->base),
+			cmdq_mbox_create(mtk_crtc->mmsys_dev,
+					 drm_crtc_index(&mtk_crtc->base),
 					 2000);
 	if (IS_ERR(mtk_crtc->cmdq_client)) {
 		dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n",
 			drm_crtc_index(&mtk_crtc->base));
 		mtk_crtc->cmdq_client = NULL;
 	}
-	ret = of_property_read_u32_index(dev->of_node, "mediatek,gce-events",
+	ret = of_property_read_u32_index(mtk_crtc->mmsys_dev->of_node,
+					 "mediatek,gce-events",
 					 drm_crtc_index(&mtk_crtc->base),
 					 &mtk_crtc->cmdq_event);
 	if (ret)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index e2bb0d19ef99..dc78e86bccc0 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -517,7 +517,8 @@  static int mtk_drm_probe(struct platform_device *pdev)
 				goto err_node;
 			}
 
-			ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL);
+			ret = mtk_ddp_comp_init(dev->parent, node, comp,
+						comp_id, NULL);
 			if (ret) {
 				of_node_put(node);
 				goto err_node;