The HDMI driver was registering a single debugfs file so far with the name hdmi_regs.
Obviously, this is not going to work anymore when will have multiple HDMI controllers since we will end up trying to register two files with the same name.
Let's use the variant to avoid that name conflict.
Reviewed-by: Dave Stevenson dave.stevenson@raspberrypi.com Tested-by: Chanwoo Choi cw00.choi@samsung.com Tested-by: Hoegeun Kwon hoegeun.kwon@samsung.com Tested-by: Stefan Wahren stefan.wahren@i2se.com Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 5 ++++- drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index f6d18bdbd1bb..4d0b44a2ac61 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1369,7 +1369,9 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) if (ret) goto err_destroy_encoder;
- vc4_debugfs_add_file(drm, "hdmi_regs", vc4_hdmi_debugfs_regs, vc4_hdmi); + vc4_debugfs_add_file(drm, variant->debugfs_name, + vc4_hdmi_debugfs_regs, + vc4_hdmi);
return 0;
@@ -1447,6 +1449,7 @@ static int vc4_hdmi_dev_remove(struct platform_device *pdev)
static const struct vc4_hdmi_variant bcm2835_variant = { .encoder_type = VC4_ENCODER_TYPE_HDMI0, + .debugfs_name = "hdmi_regs", .registers = vc4_hdmi_fields, .num_registers = ARRAY_SIZE(vc4_hdmi_fields),
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 0d529db4b3ab..794216f3228d 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -30,6 +30,9 @@ struct vc4_hdmi_variant { /* Encoder Type for that controller */ enum vc4_encoder_type encoder_type;
+ /* Filename to expose the registers in debugfs */ + const char *debugfs_name; + /* List of the registers available on that variant */ const struct vc4_hdmi_register *registers;