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authorEvan Green <evgreen@chromium.org>2018-12-10 11:32:07 -0800
committerKishon Vijay Abraham I <kishon@ti.com>2018-12-12 10:02:12 +0530
commit2e38c2e7026a9846b5bdadf0bf82808ec2c2f446 (patch)
treeab9c2cae1d615978bfa077b931aea9cb4cc0c613 /drivers/phy/qualcomm
parentd21aafe9a4a55ae5efcd640c0f3dc64ac047d38e (diff)
phy: qcom-qmp: Expose provided clocks to DT
Register a simple clock provider for the PHY pipe clock sources so that device tree users can point at these clocks via phandles to the lane nodes. Signed-off-by: Evan Green <evgreen@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Tested-by: Vivek Gautam <vivek.gautam@codeaurora.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy/qualcomm')
-rw-r--r--drivers/phy/qualcomm/phy-qcom-qmp.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 8204d55e2d65..b4006818e1b6 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -1542,6 +1542,11 @@ static int qcom_qmp_phy_clk_init(struct device *dev)
return devm_clk_bulk_get(dev, num, qmp->clks);
}
+static void phy_pipe_clk_release_provider(void *res)
+{
+ of_clk_del_provider(res);
+}
+
/*
* Register a fixed rate pipe clock.
*
@@ -1588,7 +1593,23 @@ static int phy_pipe_clk_register(struct qcom_qmp *qmp, struct device_node *np)
fixed->fixed_rate = 125000000;
fixed->hw.init = &init;
- return devm_clk_hw_register(qmp->dev, &fixed->hw);
+ ret = devm_clk_hw_register(qmp->dev, &fixed->hw);
+ if (ret)
+ return ret;
+
+ ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, &fixed->hw);
+ if (ret)
+ return ret;
+
+ /*
+ * Roll a devm action because the clock provider is the child node, but
+ * the child node is not actually a device.
+ */
+ ret = devm_add_action(qmp->dev, phy_pipe_clk_release_provider, np);
+ if (ret)
+ phy_pipe_clk_release_provider(np);
+
+ return ret;
}
static const struct phy_ops qcom_qmp_phy_gen_ops = {