user/sven/linux.git/drivers/tty/serial/uartlite.c, branch v5.15.103

tty: serial: uartlite: allow 64 bit address

2022-01-27T10:03:25Z

[ Upstream commit 3672fb65155530b5eea6225685c75329b6debec3 ] The base address of uartlite registers could be 64 bit address which is from device resource. When ulite_probe() calls ulite_assign(), this 64 bit address is casted to 32-bit. The fix is to replace "u32" type with "phys_addr_t" type for the base address in ulite_assign() argument list. Fixes: 8fa7b6100693 ("[POWERPC] Uartlite: Separate the bus binding from the driver proper") Signed-off-by: Lizhi Hou Link: https://lore.kernel.org/r/20211129202302.1319033-1-lizhi.hou@xilinx.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

tty: serial: uartlite: Use read_poll_timeout for a polling loop

2021-08-27T14:34:32Z

read_poll_timeout was recently introduced, and can be used to simplify our console polling loop. This results in a slight reduction in code. early_uartlite_putc can't get the same treatment, because it can be called before udelay is set up. Signed-off-by: Sean Anderson Link: https://lore.kernel.org/r/20210826192549.3203071-1-sean.anderson@seco.com Signed-off-by: Greg Kroah-Hartman

tty: serial: uartlite: Use constants in early_uartlite_putc

2021-08-27T14:34:04Z

Use the constants defined at the beginning of this file instead of integer literals when accessing registers. This makes this code easier to read, and obviates the need for some explanatory comments. Signed-off-by: Sean Anderson Link: https://lore.kernel.org/r/20210826194323.3209227-1-sean.anderson@seco.com Signed-off-by: Greg Kroah-Hartman

tty: serial: uartlite: Add runtime pm support

2021-07-21T10:46:52Z

In the commit 07e5d4ff125a ("Revert serial-uartlite: Add runtime support") the runtime pm support was reverted to aid reverting of the other patches. This patch adds the runtime PM support back. The runtime pm calls are used to gate and enable the clocks. Signed-off-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/20210713064835.27978-3-shubhrajyoti.datta@xilinx.com Signed-off-by: Greg Kroah-Hartman

tty: serial: uartlite: Disable clocks in case of errors

2021-07-21T10:46:52Z

In case the uart registration fails the clocks are left enabled. Disable the clock in case of errors. Signed-off-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/20210713064835.27978-2-shubhrajyoti.datta@xilinx.com Signed-off-by: Greg Kroah-Hartman

serial: tty: uartlite: fix console setup

2021-06-04T13:11:45Z

Remove the hack to assign the global console_port variable at probe time. This assumption that cons->index is -1 is wrong for systems that specify 'console=' in the cmdline (or 'stdout-path' in dts). Hence, on such system the actual console assignment is ignored, and the first UART that happens to be probed is used as console instead. Move the logic to console_setup() and map the console to the correct port through the array of available ports instead. Signed-off-by: Daniel Mack Link: https://lore.kernel.org/r/20210528133321.1859346-1-daniel@zonque.org Signed-off-by: Greg Kroah-Hartman

tty: serial: uartlite: Support probe deferral

2020-12-04T15:51:40Z

Give uartlite a chance to be probed when IRQ controller will be finally available and return potential -EPROBE_DEFER as-is. The condition "<=" has been changed to "<" to follow the recommendation in the header of platform_get_irq(). Signed-off-by: Alexander Sverdlin Link: https://lore.kernel.org/r/20201127101953.23700-1-alexander.sverdlin@nokia.com Signed-off-by: Greg Kroah-Hartman

tty: serial: uartlite: Replace HTTP links with HTTPS ones

2020-07-21T18:04:54Z

Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov Link: https://lore.kernel.org/r/20200718100807.983-1-grandmaster@al2klimov.de Signed-off-by: Greg Kroah-Hartman

Revert "serial-uartlite: Move the uart register"

2019-11-13T22:29:08Z

This reverts commit f33cf776617ba3b0f738cd70c31e0f62ea777a8d. As Johan says, this driver needs a lot more work and these changes are only going in the wrong direction: https://lkml.kernel.org/r/20190523091839.GC568@localhost Reported-by: Johan Hovold Cc: Shubhrajyoti Datta Cc: Michal Simek Signed-off-by: Greg Kroah-Hartman

Revert "serial-uartlite: Add get serial id if not provided"

2019-11-13T22:28:40Z

This reverts commit 62104b280a5a5d999c562d8e8f4c6c4eb97fb013. As Johan says, this driver needs a lot more work and these changes are only going in the wrong direction: https://lkml.kernel.org/r/20190523091839.GC568@localhost Reported-by: Johan Hovold Cc: Shubhrajyoti Datta Cc: Michal Simek Signed-off-by: Greg Kroah-Hartman