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| author | Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> | 2025-01-16 20:22:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-27 04:34:12 -0800 |
| commit | b988c73c88bdfc6d591d9c01eca6e290b05e1f91 (patch) | |
| tree | 37308bbb3e7757b4656eaf658cf7a9ed334e2f91 | |
| parent | aee56578a51a37e7ece2deccac3ae85bbc9da8fc (diff) | |
| download | linux-b988c73c88bdfc6d591d9c01eca6e290b05e1f91.tar.gz linux-b988c73c88bdfc6d591d9c01eca6e290b05e1f91.tar.bz2 linux-b988c73c88bdfc6d591d9c01eca6e290b05e1f91.zip | |
serial: sh-sci: Move runtime PM enable to sci_probe_single()
[ Upstream commit 239f11209e5f282e16f5241b99256e25dd0614b6 ]
Relocate the runtime PM enable operation to sci_probe_single(). This change
prepares the codebase for upcoming fixes.
While at it, replace the existing logic with a direct call to
devm_pm_runtime_enable() and remove sci_cleanup_single(). The
devm_pm_runtime_enable() function automatically handles disabling runtime
PM during driver removal.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/r/20250116182249.3828577-3-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 651dee03696e ("serial: sh-sci: Increment the runtime usage counter for the earlycon device")
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 0050d6253c05..fece52c7f897 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -3057,10 +3057,6 @@ static int sci_init_single(struct platform_device *dev, ret = sci_init_clocks(sci_port, &dev->dev); if (ret < 0) return ret; - - port->dev = &dev->dev; - - pm_runtime_enable(&dev->dev); } port->type = p->type; @@ -3087,11 +3083,6 @@ static int sci_init_single(struct platform_device *dev, return 0; } -static void sci_cleanup_single(struct sci_port *port) -{ - pm_runtime_disable(port->port.dev); -} - #if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) || \ defined(CONFIG_SERIAL_SH_SCI_EARLYCON) static void serial_console_putchar(struct uart_port *port, unsigned char ch) @@ -3261,8 +3252,6 @@ static void sci_remove(struct platform_device *dev) sci_ports_in_use &= ~BIT(port->port.line); uart_remove_one_port(&sci_uart_driver, &port->port); - sci_cleanup_single(port); - if (port->port.fifosize > 1) device_remove_file(&dev->dev, &dev_attr_rx_fifo_trigger); if (type == PORT_SCIFA || type == PORT_SCIFB || type == PORT_HSCIF) @@ -3426,6 +3415,11 @@ static int sci_probe_single(struct platform_device *dev, if (ret) return ret; + sciport->port.dev = &dev->dev; + ret = devm_pm_runtime_enable(&dev->dev); + if (ret) + return ret; + sciport->gpios = mctrl_gpio_init(&sciport->port, 0); if (IS_ERR(sciport->gpios)) return PTR_ERR(sciport->gpios); @@ -3439,13 +3433,7 @@ static int sci_probe_single(struct platform_device *dev, sciport->port.flags |= UPF_HARD_FLOW; } - ret = uart_add_one_port(&sci_uart_driver, &sciport->port); - if (ret) { - sci_cleanup_single(sciport); - return ret; - } - - return 0; + return uart_add_one_port(&sci_uart_driver, &sciport->port); } static int sci_probe(struct platform_device *dev) |