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serial: 8250_lpss: Add ->setup() for Elkhart Lake ports

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The ->setup() callback is mandatory for the devices.
Provide it for Elkhart Lake UART ports.

Note, for time being it's empty, but in the future it might require
an additional configuration such as DMA.

Reported-by: Raymond Tan <raymond.tan@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200305130822.36850-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2020-03-05 15:08:22 +02:00 committed by Greg Kroah-Hartman
parent e32a83c70c
commit 1b91d97c66
1 changed files with 6 additions and 0 deletions
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6
drivers/tty/serial/8250/8250_lpss.c
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@ -156,6 +156,11 @@ static int byt_serial_setup(struct lpss8250 *lpss, struct uart_port *port)
return 0;
}
static int ehl_serial_setup(struct lpss8250 *lpss, struct uart_port *port)
{
return 0;
}
#ifdef CONFIG_SERIAL_8250_DMA
static const struct dw_dma_platform_data qrk_serial_dma_pdata = {
.nr_channels = 2,
@ -356,6 +361,7 @@ static const struct lpss8250_board byt_board = {
static const struct lpss8250_board ehl_board = {
.freq = 200000000,
.base_baud = 12500000,
.setup = ehl_serial_setup,
};
static const struct lpss8250_board qrk_board = {