u-boot.git/drivers/serial/serial_s5p.c, branch master

serial: s5p: add compatible for exynos8895

2025-11-12T04:58:36+00:00

Add the compatible for Exynos8895 UART as described in upstream
devicetree bindings. This enables support for Exynos8895 and other
similar UART devices, such as Exynos7870. Other than that, the driver
works as-is.

Signed-off-by: Kaustabh Chakraborty 
Reviewed-by: Henrik Grimler 
Signed-off-by: Minkyu Kang

drivers: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD

2024-10-11T17:44:48+00:00

Use the new symbol to refer to any 'SPL' build, including TPL and VPL

Signed-off-by: Simon Glass

serial: s5p: Add Exynos850 compatible

2024-01-24T02:23:20+00:00

Enable serial support for Exynos850 SoC by adding the corresponding
compatible string. No additional changes needed, the driver works as is
on Exynos850. Related USI and PMU configuration is enabled in separate
drivers. The only other dependencies are clock and pinctrl drivers,
which are already enabled too.

Signed-off-by: Sam Protsenko 
Signed-off-by: Minkyu Kang

serial: s5p: Use dev_read_addr_ptr() to get base address

2023-11-27T09:04:11+00:00

As the address read from device tree is being cast to a pointer, it's
better to use dev_read_addr_ptr() API for getting that address. The more
detailed explanation can be found in commit a12a73b66476 ("drivers: use
dev_read_addr_ptr when cast to pointer").

Signed-off-by: Sam Protsenko 
Reviewed-by: Simon Glass 
Signed-off-by: Minkyu Kang

serial: s5p: Improve coding style

2023-11-23T06:24:18+00:00

Just some minor style fixes. No functional change.

Signed-off-by: Sam Protsenko 
Reviewed-by: Simon Glass 
Signed-off-by: Minkyu Kang

serial: s5p: Use named constants for register values

2023-11-23T06:24:18+00:00

Get rid of magic numbers in s5p_serial_init() when writing to UART
registers. While at it, use BIT() macro for existing constants when
appropriate.

No functional change.

Signed-off-by: Sam Protsenko 
Reviewed-by: Simon Glass 
Signed-off-by: Minkyu Kang

serial: s5p: Use livetree API to get "id" property

2023-11-23T06:24:18+00:00

Use dev_read_u8_default() instead of fdtdec_get_int() to read the "id"
property from device tree, as suggested in [1]. dev_* API is already
used in this driver, so there is no reason to stick to fdtdec_* API.
This also fixes checkpatch warning:

    WARNING: Use the livetree API (dev_read_...)

[1] doc/develop/driver-model/livetree.rst

Signed-off-by: Sam Protsenko 
Reviewed-by: Simon Glass 
Signed-off-by: Minkyu Kang

serial: s5p: Remove common.h inclusion

2023-11-23T06:24:18+00:00

It's not really needed here anymore. Remove it, as common.h is going
away at some point.

Signed-off-by: Sam Protsenko 
Reviewed-by: Simon Glass 
Signed-off-by: Minkyu Kang

serial: s5p: Fix clk_get_by_index() error code check

2023-11-13T07:20:58+00:00

clk_get_by_index() returns negative number on error. Assigning it to
unsigned int makes the subsequent "ret < 0" check always false, leading
in turn to possible unhandled errors. Change 'ret' variable type to
signed int so the code checks and handles clk_get_by_index() return code
properly.

Signed-off-by: Sam Protsenko 
Fixes: cf75cdf96ef2 ("serial: s5p: use clock api to get clock rate")
Signed-off-by: Minkyu Kang

serial: s5p: Use IS_ENABLED where appropriate

2023-01-27T19:32:55+00:00

There are no SPL/TPL variants of CONFIG_CLK_EXYNOS and
CONFIG_ARCH_APPLE, so switch from CONFIG_IS_ENABLED to
IS_ENABLED.

Signed-off-by: Mark Kettenis 
Reviewed-by: Simon Glass