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- From 2b0fe9137aa32d7fc367bf3a1cef4fa97ece6d58 Mon Sep 17 00:00:00 2001
- From: Robert Marko <[email protected]>
- Date: Tue, 23 Aug 2022 22:43:51 +0200
- Subject: [PATCH] phy: qcom-qmp-pcie: make pipe clock rate configurable
- IPQ8074 Gen3 PCIe PHY uses 250MHz as the pipe clock rate instead of 125MHz
- like every other PCIe QMP PHY does, so make it configurable as part of the
- qmp_phy_cfg.
- Signed-off-by: Robert Marko <[email protected]>
- Reviewed-by: Dmitry Baryshkov <[email protected]>
- Link: https://lore.kernel.org/r/[email protected]
- Signed-off-by: Vinod Koul <[email protected]>
- ---
- drivers/phy/qualcomm/phy-qcom-qmp.c | 14 ++++++++++++--
- 1 file changed, 12 insertions(+), 2 deletions(-)
- --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
- +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
- @@ -2842,6 +2842,9 @@ struct qmp_phy_cfg {
- /* true, if PHY has secondary tx/rx lanes to be configured */
- bool is_dual_lane_phy;
-
- + /* QMP PHY pipe clock interface rate */
- + unsigned long pipe_clock_rate;
- +
- /* true, if PCS block has no separate SW_RESET register */
- bool no_pcs_sw_reset;
- };
- @@ -5138,8 +5141,15 @@ static int phy_pipe_clk_register(struct
-
- init.ops = &clk_fixed_rate_ops;
-
- - /* controllers using QMP phys use 125MHz pipe clock interface */
- - fixed->fixed_rate = 125000000;
- + /*
- + * Controllers using QMP PHY-s use 125MHz pipe clock interface
- + * unless other frequency is specified in the PHY config.
- + */
- + if (qmp->phys[0]->cfg->pipe_clock_rate)
- + fixed->fixed_rate = qmp->phys[0]->cfg->pipe_clock_rate;
- + else
- + fixed->fixed_rate = 125000000;
- +
- fixed->hw.init = &init;
-
- ret = devm_clk_hw_register(qmp->dev, &fixed->hw);
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