Messages in this thread Patch in this message | | | From | Evan Green <> | Subject | [PATCH v2 4/4] phy: qcom-qmp: Expose provided clocks to DT | Date | Mon, 10 Dec 2018 11:32:07 -0800 |
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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>
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Changes in v2: - Rebased onto phy/next
drivers/phy/qualcomm/phy-qcom-qmp.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index 8204d55e2d650..b4006818e1b65 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 = { -- 2.18.1
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