| Message ID | 20200305155950.2705-12-tzimmermann@suse.de |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | drm: Convert drivers to drm_simple_encoder_init() | expand |
Hi Thomas,
I love your patch! Yet something to improve:
[auto build test ERROR on next-20200305]
[cannot apply to rockchip/for-next shawnguo/for-next sunxi/sunxi/for-next tegra/for-next linus/master v5.6-rc4 v5.6-rc3 v5.6-rc2 v5.6-rc4]
[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/Thomas-Zimmermann/drm-Convert-drivers-to-drm_simple_encoder_init/20200306-045931
base: 47466dcf84ee66a973ea7d2fca7e582fe9328932
config: arm64-defconfig (attached as .config)
compiler: clang version 11.0.0 (git://gitmirror/llvm_project a0cd413426479abb207381bdbab862f3dfb3ce7d)
reproduce:
# FIXME the reproduce steps for clang is not ready yet
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> drivers/gpu//drm/rcar-du/rcar_du_encoder.c:107:8: error: implicit declaration of function 'drm_simple_encoder_init' [-Werror,-Wimplicit-function-declaration]
ret = drm_simple_encoder_init(rcdu->ddev, encoder,
^
drivers/gpu//drm/rcar-du/rcar_du_encoder.c:107:8: note: did you mean 'drm_encoder_init'?
include/drm/drm_encoder.h:189:5: note: 'drm_encoder_init' declared here
int drm_encoder_init(struct drm_device *dev,
^
1 error generated.
vim +/drm_simple_encoder_init +107 drivers/gpu//drm/rcar-du/rcar_du_encoder.c
46
47 int rcar_du_encoder_init(struct rcar_du_device *rcdu,
48 enum rcar_du_output output,
49 struct device_node *enc_node)
50 {
51 struct rcar_du_encoder *renc;
52 struct drm_encoder *encoder;
53 struct drm_bridge *bridge;
54 int ret;
55
56 renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL);
57 if (renc == NULL)
58 return -ENOMEM;
59
60 rcdu->encoders[output] = renc;
61 renc->output = output;
62 encoder = rcar_encoder_to_drm_encoder(renc);
63
64 dev_dbg(rcdu->dev, "initializing encoder %pOF for output %u\n",
65 enc_node, output);
66
67 /*
68 * Locate the DRM bridge from the DT node. For the DPAD outputs, if the
69 * DT node has a single port, assume that it describes a panel and
70 * create a panel bridge.
71 */
72 if ((output == RCAR_DU_OUTPUT_DPAD0 ||
73 output == RCAR_DU_OUTPUT_DPAD1) &&
74 rcar_du_encoder_count_ports(enc_node) == 1) {
75 struct drm_panel *panel = of_drm_find_panel(enc_node);
76
77 if (IS_ERR(panel)) {
78 ret = PTR_ERR(panel);
79 goto done;
80 }
81
82 bridge = devm_drm_panel_bridge_add_typed(rcdu->dev, panel,
83 DRM_MODE_CONNECTOR_DPI);
84 if (IS_ERR(bridge)) {
85 ret = PTR_ERR(bridge);
86 goto done;
87 }
88 } else {
89 bridge = of_drm_find_bridge(enc_node);
90 if (!bridge) {
91 ret = -EPROBE_DEFER;
92 goto done;
93 }
94 }
95
96 /*
97 * On Gen3 skip the LVDS1 output if the LVDS1 encoder is used as a
98 * companion for LVDS0 in dual-link mode.
99 */
100 if (rcdu->info->gen >= 3 && output == RCAR_DU_OUTPUT_LVDS1) {
101 if (rcar_lvds_dual_link(bridge)) {
102 ret = -ENOLINK;
103 goto done;
104 }
105 }
106
> 107 ret = drm_simple_encoder_init(rcdu->ddev, encoder,
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index c07c6a88aff0..b0335da0c161 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -13,6 +13,7 @@ #include <drm/drm_crtc.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_panel.h> +#include <drm/drm_simple_kms_helper.h> #include "rcar_du_drv.h" #include "rcar_du_encoder.h" @@ -23,13 +24,6 @@ * Encoder */ -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { -}; - -static const struct drm_encoder_funcs encoder_funcs = { - .destroy = drm_encoder_cleanup, -}; - static unsigned int rcar_du_encoder_count_ports(struct device_node *node) { struct device_node *ports; @@ -110,13 +104,11 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, } } - ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs, - DRM_MODE_ENCODER_NONE, NULL); + ret = drm_simple_encoder_init(rcdu->ddev, encoder, + DRM_MODE_ENCODER_NONE); if (ret < 0) goto done; - drm_encoder_helper_add(encoder, &encoder_helper_funcs); - /* * Attach the bridge to the encoder. The bridge will create the * connector.
The rcar-du driver uses an empty implementation for its encoder. Replace the code with the generic simple encoder. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-)