From: Hans de Goede <johannes.goede@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: Hans de Goede <johannes.goede@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Subject: [PATCH] clk: qcom: x1e80100-dispcc: Stop disp_cc_mdss_mdp_clk_src from getting parked
Date: Sat, 25 Apr 2026 14:33:51 +0200 [thread overview]
Message-ID: <20260425123351.6292-1-johannes.goede@oss.qualcomm.com> (raw)
Parking disp_cc_mdss_mdp_clk_src at 19.2MHz causing the EFI GOP framebuffer
to stop functioning. The EFI GOP framebuffer should keep working until
the msm display driver loads, to help with boot debugging and to ensure
display output when the msm module is not in the initramfs.
Switch disp_cc_mdss_mdp_clk_src over to clk_rcg2_shared_no_init_park_ops
to keep the EFI GOP working after binding the x1e80100-dispcc driver.
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
---
drivers/clk/qcom/dispcc-x1e80100.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/qcom/dispcc-x1e80100.c b/drivers/clk/qcom/dispcc-x1e80100.c
index aa7fd43969f9..cd45bedf2649 100644
--- a/drivers/clk/qcom/dispcc-x1e80100.c
+++ b/drivers/clk/qcom/dispcc-x1e80100.c
@@ -580,7 +580,7 @@ static struct clk_rcg2 disp_cc_mdss_mdp_clk_src = {
.parent_data = disp_cc_parent_data_6,
.num_parents = ARRAY_SIZE(disp_cc_parent_data_6),
.flags = CLK_SET_RATE_PARENT,
- .ops = &clk_rcg2_shared_ops,
+ .ops = &clk_rcg2_shared_no_init_park_ops,
},
};
--
2.54.0
next reply other threads:[~2026-04-25 12:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-25 12:33 Hans de Goede [this message]
2026-04-25 12:44 ` [PATCH] clk: qcom: x1e80100-dispcc: Stop disp_cc_mdss_mdp_clk_src from getting parked Dmitry Baryshkov
2026-04-25 16:10 ` Val Packett
2026-04-26 18:20 ` Hans de Goede
2026-04-27 16:00 ` Hans de Goede
2026-04-27 17:12 ` Bjorn Andersson
2026-04-28 8:39 ` Hans de Goede
2026-04-28 11:37 ` Dmitry Baryshkov
2026-05-12 20:22 ` Bjorn Andersson
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