From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> Hi, This series adds fixes for earlycon and keep_bootcon on sh-sci driver. Patch 1/6 was initially part of [1], then posted as standalone fix at [2]. Patch 5/6 was integrated but then reverted as issues were identified after that with it as standalone patch. I added it in this series to keep all the sh-sci fixes in the same place. All these fixes are prerequisites for the Renesas RZ/G3S SCI support. Series was tested on the boards with the following device trees binaries: - r8a7742-iwg21d-q7.dtb - r8a7743-iwg20d-q7.dtb - r8a7745-iwg22d-sodimm.dtb - r8a77470-iwg23s-sbc.dtb - r8a774a1-hihope-rzg2m-ex.dtb - r8a774b1-hihope-rzg2n-ex.dtb - r8a774e1-hihope-rzg2h-ex.dtb - r9a07g043u11-smarc.dtb - r9a07g044c2-smarc.dtb - r9a07g044l2-smarc.dtb - r9a07g054l2-smarc.dtb - r9a08g045s33-smarc.dtb - r9a08g045s33-smarc-pmod.dtb (not integrated in the latest kernel tree, but the device tree was posted at [3]) in the following scenarios: 1/ "earlycon keep_bootcon" were present in bootargs 2/ only "earlycon" was present in bootargs 3/ none of the "earlycon" or "earlycon keep_bootcon" were present in bootargs 1, 2, 3 were tested also with renesas_defconfig on r9a08g045s33-smarc-pmod.dtb. Please give it a try on your devices as well. Thank you, Claudiu Beznea [1] https://lore.kernel.org/all/20241115134401.3893008-1-claudiu.beznea.uj@xxxxxxxxxxxxxx/ [2] https://lore.kernel.org/all/20241125115856.513642-1-claudiu.beznea.uj@xxxxxxxxxxxxxx/ [3] https://lore.kernel.org/all/20241115134401.3893008-9-claudiu.beznea.uj@xxxxxxxxxxxxxx/ Claudiu Beznea (6): serial: sh-sci: Check if TX data was written to device in .tx_empty() serial: sh-sci: Drop __initdata macro for port_cfg serial: sh-sci: Move runtime PM enable to sci_probe_single() serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use serial: sh-sci: Clean sci_ports[0] after at earlycon exit serial: sh-sci: Increment the runtime usage counter for the earlycon device drivers/tty/serial/sh-sci.c | 121 ++++++++++++++++++++++++++++++------ 1 file changed, 102 insertions(+), 19 deletions(-) -- 2.39.2
