From: Jani Nikula Date: Mon, 12 Sep 2022 11:45:14 +0000 (+0300) Subject: drm/i915/ipc: register debugfs only if IPC available X-Git-Tag: v6.1-rc5~176^2~15^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=62a21a7c6a1cb7030eab8d64427d93b97cdeedec;p=platform%2Fkernel%2Flinux-starfive.git drm/i915/ipc: register debugfs only if IPC available It looks like trying to enable IPC via debugfs on platforms that don't have IPC resulted in dmesg info message about IPC being enabled, which is clearly not possible and would not happen. Seems sensible to register IPC debugfs only on platforms that have IPC. Signed-off-by: Jani Nikula Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/b18edb4f96c9d2ec728ef04e6f99d161fe5641d1.1662983005.git.jani.nikula@intel.com --- diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c index a75599b..c67497b 100644 --- a/drivers/gpu/drm/i915/display/skl_watermark.c +++ b/drivers/gpu/drm/i915/display/skl_watermark.c @@ -3485,9 +3485,6 @@ static int skl_watermark_ipc_status_open(struct inode *inode, struct file *file) { struct drm_i915_private *i915 = inode->i_private; - if (!HAS_IPC(i915)) - return -ENODEV; - return single_open(file, skl_watermark_ipc_status_show, i915); } @@ -3529,6 +3526,9 @@ void skl_watermark_ipc_debugfs_register(struct drm_i915_private *i915) { struct drm_minor *minor = i915->drm.primary; + if (!HAS_IPC(i915)) + return; + debugfs_create_file("i915_ipc_status", 0644, minor->debugfs_root, i915, &skl_watermark_ipc_status_fops); }