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Ip=[165.204.84.17]; Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: LV8PEPF0000006B.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6898 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Nevenko Stupar [Why & How] The DC Hub reference frequency valid range was asserted incorrectly. Correct the range to 20 to 50 MHz and update the comment accordingly. Reviewed-by: Sridevi Arvindekar Reviewed-by: Dillon Varone Signed-off-by: Nevenko Stupar Signed-off-by: Ray Wu --- drivers/gpu/drm/amd/display/dc/hubbub/dcn20/dcn20_hubbub.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn20/dcn20_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn20/dcn20_hubbub.c index 053a08b6d3a3..9fb2907361c3 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn20/dcn20_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn20/dcn20_hubbub.c @@ -574,9 +574,8 @@ void hubbub2_get_dchub_ref_freq(struct hubbub *hubbub, else *dchub_ref_freq_inKhz = dccg_ref_freq_inKhz; - // DC hub reference frequency must be around 50Mhz, otherwise there may be - // overflow/underflow issues when doing HUBBUB programming - if (*dchub_ref_freq_inKhz < 40000 || *dchub_ref_freq_inKhz > 60000) + // DC Hub reference frequency valid range is 20 to 50 MHz + if (*dchub_ref_freq_inKhz < 20000 || *dchub_ref_freq_inKhz > 50000) ASSERT_CRITICAL(false); return; -- 2.43.0