diff options
| author | Evan Green <evgreen@chromium.org> | 2018-12-10 11:32:07 -0800 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2018-12-12 10:02:12 +0530 |
| commit | 2e38c2e7026a9846b5bdadf0bf82808ec2c2f446 (patch) | |
| tree | ab9c2cae1d615978bfa077b931aea9cb4cc0c613 /drivers/phy | |
| parent | d21aafe9a4a55ae5efcd640c0f3dc64ac047d38e (diff) | |
| download | linux-2e38c2e7026a9846b5bdadf0bf82808ec2c2f446.tar.gz | |
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')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-qmp.c | 23 |
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 = { |