kernel/linux.git/drivers/tty/serial/Kconfig, branch v5.15.7

serial: omap: Only allow if 8250_omap is not selected

2021-07-29T15:03:04+00:00

For years we've been carrying legacy omap-serial in addition to 8250_omap driver and 8250_omap should be used instead. Let's finally start planning on removing omap-serial by first not building it if 8250_omap is selected to save some memory. The defconfigs have switched over to using 8250_omap, and we have a fixup in place for the the serial console since commit 00648d0282dc ("tty: serial: 8250: omap: add ttySx console if the user didn't"). So people updating their systems without omap-serial will see boot time warnings on what is going on. Cc: Andy Shevchenko Cc: Dario Binacchi Cc: Vignesh Raghavendra Signed-off-by: Tony Lindgren Link: https://lore.kernel.org/r/20210727103149.51175-2-tony@atomide.com Signed-off-by: Greg Kroah-Hartman

tty: serial: Fix spelling mistake "Asychronous" -> "Asynchronous"

2021-07-21T10:47:33+00:00

There is a spelling mistake in the Kconfig text. Fix it. Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20210719102421.14813-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman

Revert "tty: serial: Add UART driver for Cortina-Access platform"

2021-06-24T12:46:32+00:00

This reverts commit b61c8bf4694b5115766849378dcb8787ff54e65e. It never made it to a public mailing list and still needs some work based on the review comments. So revert it for now. Reported-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/CAMuHMdXA9-ajoAza2JAW5879ECieMm1dbBbKHgJhDa7=3kWu3w@mail.gmail.com Cc: Jason Li Signed-off-by: Greg Kroah-Hartman

tty: serial: Add UART driver for Cortina-Access platform

2021-06-18T11:12:12+00:00

This driver supports Cortina Access UART IP integrated in most all CAXXXX line of SoCs. Earlycom is also supported Signed-off-by: Jason Li Link: https://lore.kernel.org/r/20210615165750.31261-1-alex.nemirovsky@cortina-access.com Signed-off-by: Greg Kroah-Hartman

serial: liteuart: Add support for earlycon

2021-05-20T14:35:01+00:00

Most litex boards using RISC-V soft cores us the sbi earlycon, however this is not available for non RISC-V litex SoC's. This patch enables earlycon for liteuart which is available on all Litex SoC's making support for earycon debugging more widely available. Cc: Florent Kermarrec Cc: Mateusz Holenko Cc: Joel Stanley Cc: Gabriel L. Somlo Reviewed-and-tested-by: Gabriel Somlo Reviewed-by: Jiri Slaby Reviewed-by: Joel Stanley Signed-off-by: Stafford Horne Link: https://lore.kernel.org/r/20210517115453.24365-1-shorne@gmail.com Signed-off-by: Greg Kroah-Hartman

serial: extend compile-test coverage

2021-04-22T11:12:13+00:00

Allow more drivers to be compile tested more easily, for example, when doing subsystem-wide changes. Verified on X86_64 as well as arm, powerpc and m68k with minimal configs in order to catch missing implicit build dependencies (e.g. MAILBOX for SERIAL_TEGRA_TCU). Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20210422080211.29326-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman

tty: serial: samsung_tty: Add support for Apple UARTs

2021-03-10T08:34:10+00:00

Apple SoCs are a distant descendant of Samsung designs and use yet another variant of their UART style, with different interrupt handling. In particular, this variant has the following differences with existing ones: * It includes a built-in interrupt controller with different registers, using only a single platform IRQ * Internal interrupt sources are treated as edge-triggered, even though the IRQ output is level-triggered. This chiefly affects the TX IRQ path: the driver can no longer rely on the TX buffer empty IRQ immediately firing after TX is enabled, but instead must prime the FIFO with data directly. Signed-off-by: Hector Martin Reviewed-by: Krzysztof Kozlowski Tested-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210304213902.83903-25-marcan@marcan.st Signed-off-by: Greg Kroah-Hartman

drivers: tty: serial: IMX_EARLYCON: fix Kconfig dependency on SERIAL_CORE

2021-03-10T08:34:09+00:00

When SERIAL_IMX_EARLYCON is enabled, and SERIAL_CORE is disabled, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for SERIAL_EARLYCON Depends on [n]: TTY [=y] && HAS_IOMEM [=y] && SERIAL_CORE [=n] Selected by [y]: - SERIAL_IMX_EARLYCON [=y] && TTY [=y] && HAS_IOMEM [=y] && (ARCH_MXC [=y] || COMPILE_TEST [=n]) && OF [=y] This is because SERIAL_IMX_EARLYCON selects SERIAL_EARLYCON, without selecting SERIAL_CORE, despite that config option depending on SERIAL_CORE. Signed-off-by: Julian Braha Link: https://lore.kernel.org/r/20210225044248.4745-1-julianbraha@gmail.com Signed-off-by: Greg Kroah-Hartman

serial: ifx6x60: Remove driver for deprecated platform

2021-01-26T18:21:49+00:00

Intel Moorestown and Medfield are quite old Intel Atom based 32-bit platforms, which were in limited use in some Android phones, tablets and consumer electronics more than eight years ago. There are no bugs or problems ever reported outside from Intel for breaking any of that platforms for years. It seems no real users exists who run more or less fresh kernel on it. The commit 05f4434bc130 ("ASoC: Intel: remove mfld_machine") also in align with this theory. Due to above and to reduce a burden of supporting outdated drivers we remove the support of outdated platforms completely. Signed-off-by: Andy Shevchenko Acked-by: Linus Walleij Link: https://lore.kernel.org/r/20210125150238.16980-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

serial: remove sirf prima/atlas driver

2021-01-20T17:49:01+00:00

The CSR SiRF prima2/atlas platforms are getting removed, so this driver is no longer needed. Cc: Barry Song Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20210120161324.3728294-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman