[PATCH 2/2] clk: qcom: x1e80100-dispcc: Add USB4 router link resets
From: Konrad Dybcio
Date: Tue Nov 18 2025 - 12:33:30 EST
From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
The router link clock branches also feature some reset logic, which is
required to properly power sequence the hardware for DP tunneling over
USB4.
Describe these missing resets.
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
---
drivers/clk/qcom/dispcc-x1e80100.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/clk/qcom/dispcc-x1e80100.c b/drivers/clk/qcom/dispcc-x1e80100.c
index 40069eba41f2..aa7fd43969f9 100644
--- a/drivers/clk/qcom/dispcc-x1e80100.c
+++ b/drivers/clk/qcom/dispcc-x1e80100.c
@@ -1618,6 +1618,9 @@ static struct clk_regmap *disp_cc_x1e80100_clocks[] = {
static const struct qcom_reset_map disp_cc_x1e80100_resets[] = {
[DISP_CC_MDSS_CORE_BCR] = { 0x8000 },
+ [DISP_CC_MDSS_DPTX0_USB_ROUTER_LINK_INTF_CLK_ARES] = { .reg = 0x8044, .bit = 2 },
+ [DISP_CC_MDSS_DPTX1_USB_ROUTER_LINK_INTF_CLK_ARES] = { .reg = 0x8068, .bit = 2 },
+ [DISP_CC_MDSS_DPTX2_USB_ROUTER_LINK_INTF_CLK_ARES] = { .reg = 0x8088, .bit = 2 },
[DISP_CC_MDSS_CORE_INT2_BCR] = { 0xa000 },
[DISP_CC_MDSS_RSCC_BCR] = { 0xc000 },
};
--
2.51.2