From: Asad Kamal Date: Wed, 18 Mar 2026 05:52:57 +0000 (+0800) Subject: drm/amd/pm: Return -EOPNOTSUPP for unsupported OD_MCLK on smu_v13_0_6 X-Git-Tag: v7.0-rc6~19^2~4^2~7 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2f0e491faee43181b6a86e90f34016b256042fe1;p=thirdparty%2Fkernel%2Flinux.git drm/amd/pm: Return -EOPNOTSUPP for unsupported OD_MCLK on smu_v13_0_6 When SET_UCLK_MAX capability is absent, return -EOPNOTSUPP from smu_v13_0_6_emit_clk_levels() for OD_MCLK instead of 0. This makes unsupported OD_MCLK reporting consistent with other clock types and allows callers to skip the entry cleanly. Signed-off-by: Asad Kamal Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher (cherry picked from commit d82e0a72d9189e8acd353988e1a57f85ce479e37) Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c index b44a85697a30..870bcc86fd79 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c @@ -1391,7 +1391,7 @@ static int smu_v13_0_6_emit_clk_levels(struct smu_context *smu, break; case SMU_OD_MCLK: if (!smu_v13_0_6_cap_supported(smu, SMU_CAP(SET_UCLK_MAX))) - return 0; + return -EOPNOTSUPP; size += sysfs_emit_at(buf, size, "%s:\n", "OD_MCLK"); size += sysfs_emit_at(buf, size, "0: %uMhz\n1: %uMhz\n",