| Message ID | 20210101165507.19486-8-tiny.windzz@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | Introduce devm_pm_opp_* API | expand |
On 01-01-21, 16:54, Yangtao Li wrote: > Use devm_pm_opp_* API to simplify code, and we don't need > to make opp_table glabal. > > Let's remove opp_table from geni_se later. > > Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> > --- > drivers/tty/serial/qcom_geni_serial.c | 23 +++++++++-------------- > 1 file changed, 9 insertions(+), 14 deletions(-) > > diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c > index 5aada7ebae35..36a92df8ec11 100644 > --- a/drivers/tty/serial/qcom_geni_serial.c > +++ b/drivers/tty/serial/qcom_geni_serial.c > @@ -1352,6 +1352,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > int irq; > bool console = false; > struct uart_driver *drv; > + struct opp_table *opp_table; > > if (of_device_is_compatible(pdev->dev.of_node, "qcom,geni-debug-uart")) > console = true; > @@ -1433,13 +1434,13 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap")) > port->cts_rts_swap = true; > > - port->se.opp_table = dev_pm_opp_set_clkname(&pdev->dev, "se"); > - if (IS_ERR(port->se.opp_table)) > - return PTR_ERR(port->se.opp_table); > + opp_table = devm_pm_opp_set_clkname(&pdev->dev, "se"); > + if (IS_ERR(opp_table)) > + return PTR_ERR(opp_table); > /* OPP table is optional */ > - ret = dev_pm_opp_of_add_table(&pdev->dev); > + ret = devm_pm_opp_of_add_table(&pdev->dev); > if (ret) { > - dev_pm_opp_put_clkname(port->se.opp_table); > + devm_pm_opp_put_clkname(&pdev->dev, opp_table); We shouldn't be doing this here, i.e. put_clkname. Even when the OPP table isn't present, this driver calls dev_pm_opp_set_rate() which behaves like clk_set_rate() in this case and so the clk name is still required by the OPP core. > if (ret != -ENODEV) { > dev_err(&pdev->dev, "invalid OPP table in device tree\n"); > return ret; > @@ -1453,7 +1454,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > > ret = uart_add_one_port(drv, uport); > if (ret) > - goto err; > + return ret; > > irq_set_status_flags(uport->irq, IRQ_NOAUTOEN); > ret = devm_request_irq(uport->dev, uport->irq, qcom_geni_serial_isr, > @@ -1461,7 +1462,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > if (ret) { > dev_err(uport->dev, "Failed to get IRQ ret %d\n", ret); > uart_remove_one_port(drv, uport); > - goto err; > + return ret; > } > > /* > @@ -1478,15 +1479,11 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > if (ret) { > device_init_wakeup(&pdev->dev, false); > uart_remove_one_port(drv, uport); > - goto err; > + return ret; > } > } > > return 0; > -err: > - dev_pm_opp_of_remove_table(&pdev->dev); > - dev_pm_opp_put_clkname(port->se.opp_table); > - return ret; > } > > static int qcom_geni_serial_remove(struct platform_device *pdev) > @@ -1494,8 +1491,6 @@ static int qcom_geni_serial_remove(struct platform_device *pdev) > struct qcom_geni_serial_port *port = platform_get_drvdata(pdev); > struct uart_driver *drv = port->private_data.drv; > > - dev_pm_opp_of_remove_table(&pdev->dev); > - dev_pm_opp_put_clkname(port->se.opp_table); > dev_pm_clear_wake_irq(&pdev->dev); > device_init_wakeup(&pdev->dev, false); > uart_remove_one_port(drv, &port->uport); > -- > 2.25.1
Dropped lots of people from cc list On 04-01-21, 12:49, Viresh Kumar wrote: > On 01-01-21, 16:54, Yangtao Li wrote: > > Use devm_pm_opp_* API to simplify code, and we don't need > > to make opp_table glabal. > > > > Let's remove opp_table from geni_se later. > > > > Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> > > --- > > drivers/tty/serial/qcom_geni_serial.c | 23 +++++++++-------------- > > 1 file changed, 9 insertions(+), 14 deletions(-) > > > > diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c > > index 5aada7ebae35..36a92df8ec11 100644 > > --- a/drivers/tty/serial/qcom_geni_serial.c > > +++ b/drivers/tty/serial/qcom_geni_serial.c > > @@ -1352,6 +1352,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > > int irq; > > bool console = false; > > struct uart_driver *drv; > > + struct opp_table *opp_table; > > > > if (of_device_is_compatible(pdev->dev.of_node, "qcom,geni-debug-uart")) > > console = true; > > @@ -1433,13 +1434,13 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) > > if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap")) > > port->cts_rts_swap = true; > > > > - port->se.opp_table = dev_pm_opp_set_clkname(&pdev->dev, "se"); > > - if (IS_ERR(port->se.opp_table)) > > - return PTR_ERR(port->se.opp_table); > > + opp_table = devm_pm_opp_set_clkname(&pdev->dev, "se"); > > + if (IS_ERR(opp_table)) > > + return PTR_ERR(opp_table); > > /* OPP table is optional */ > > - ret = dev_pm_opp_of_add_table(&pdev->dev); > > + ret = devm_pm_opp_of_add_table(&pdev->dev); > > if (ret) { > > - dev_pm_opp_put_clkname(port->se.opp_table); > > + devm_pm_opp_put_clkname(&pdev->dev, opp_table); > > We shouldn't be doing this here, i.e. put_clkname. Even when the OPP > table isn't present, this driver calls dev_pm_opp_set_rate() which > behaves like clk_set_rate() in this case and so the clk name is still > required by the OPP core. The same problem is there with multiple patches, fix them all please.
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 5aada7ebae35..36a92df8ec11 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -1352,6 +1352,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) int irq; bool console = false; struct uart_driver *drv; + struct opp_table *opp_table; if (of_device_is_compatible(pdev->dev.of_node, "qcom,geni-debug-uart")) console = true; @@ -1433,13 +1434,13 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap")) port->cts_rts_swap = true; - port->se.opp_table = dev_pm_opp_set_clkname(&pdev->dev, "se"); - if (IS_ERR(port->se.opp_table)) - return PTR_ERR(port->se.opp_table); + opp_table = devm_pm_opp_set_clkname(&pdev->dev, "se"); + if (IS_ERR(opp_table)) + return PTR_ERR(opp_table); /* OPP table is optional */ - ret = dev_pm_opp_of_add_table(&pdev->dev); + ret = devm_pm_opp_of_add_table(&pdev->dev); if (ret) { - dev_pm_opp_put_clkname(port->se.opp_table); + devm_pm_opp_put_clkname(&pdev->dev, opp_table); if (ret != -ENODEV) { dev_err(&pdev->dev, "invalid OPP table in device tree\n"); return ret; @@ -1453,7 +1454,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) ret = uart_add_one_port(drv, uport); if (ret) - goto err; + return ret; irq_set_status_flags(uport->irq, IRQ_NOAUTOEN); ret = devm_request_irq(uport->dev, uport->irq, qcom_geni_serial_isr, @@ -1461,7 +1462,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) if (ret) { dev_err(uport->dev, "Failed to get IRQ ret %d\n", ret); uart_remove_one_port(drv, uport); - goto err; + return ret; } /* @@ -1478,15 +1479,11 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) if (ret) { device_init_wakeup(&pdev->dev, false); uart_remove_one_port(drv, uport); - goto err; + return ret; } } return 0; -err: - dev_pm_opp_of_remove_table(&pdev->dev); - dev_pm_opp_put_clkname(port->se.opp_table); - return ret; } static int qcom_geni_serial_remove(struct platform_device *pdev) @@ -1494,8 +1491,6 @@ static int qcom_geni_serial_remove(struct platform_device *pdev) struct qcom_geni_serial_port *port = platform_get_drvdata(pdev); struct uart_driver *drv = port->private_data.drv; - dev_pm_opp_of_remove_table(&pdev->dev); - dev_pm_opp_put_clkname(port->se.opp_table); dev_pm_clear_wake_irq(&pdev->dev); device_init_wakeup(&pdev->dev, false); uart_remove_one_port(drv, &port->uport);
Use devm_pm_opp_* API to simplify code, and we don't need to make opp_table glabal. Let's remove opp_table from geni_se later. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> --- drivers/tty/serial/qcom_geni_serial.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-)