mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-13 06:10:18 -04:00
Code Issues Packages Projects Releases Wiki Activity

spi: sh-msiof: Remove unneeded compatible values

Browse Source 
The Clock-Synchronized Serial Interfaces with FIFO (MSIOF) driver
matches against both SoC-specific and family-specific compatible values
to maintain backwards-compatibility with old DTBs predating the
introduction of the family-specific compatible values.

For RZ/G1, the SoC-specific compatible match entry can be removed from
the driver: their DT always had the family-specific compatible values,
and thus there was never a need to add the SoC-specific compatible
values to the driver.

For R-Car Gen2 and M3-W, the SoC-specific compatible match entries can
be removed, too, as there are a few points in time where DT
backwards-compatibility was broken for other reasons:
  - Legacy DT clock support is no longer supported since commit
    58256143cf ("clk: renesas: Remove R-Car Gen2 legacy DT clock
    support") in v5.5, and the addition of "renesas,rcar-gen2-msiof" to
    DTS in v4.11 predates the completion of the clock conversion in
    v4.15,
  - Legacy DT LVDS support is no longer supported since commit
    841281fe52 ("drm: rcar-du: Drop LVDS device tree backward
    compatibility") in v5.18, and the addition of
    "renesas,rcar-gen3-msiof" in commit 8b51f97138 ("arm64: dts:
    r8a7796: Use R-Car Gen 3 fallback binding for msiof nodes") in v4.11
    predates the LVDS conversion in commit 58e8ed2ee9 ("arm64:
    dts: renesas: Convert to new LVDS DT bindings") in v4.20.

For R-Car H3, the SoC-specific compatible match entry cannot be removed,
as its purpose is to handle an SoC-specific quirk.

Suggested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/d33393ac7536bc3f0f624b079f70d80dd19843db.1747401908.git.geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Geert Uytterhoeven
2025-05-16 15:32:05 +02:00
committed by Mark Brown
parent 0e1c7d0591
commit ee44d3fc9d
1 changed files with 0 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/spi/spi-sh-msiof.c
View File

@@ -1088,16 +1088,8 @@ static const struct sh_msiof_chipdata rcar_r8a7795_data = {
static const struct of_device_id sh_msiof_match[] __maybe_unused = {
{ .compatible = "renesas,sh-mobile-msiof", .data = &sh_data },
{ .compatible = "renesas,msiof-r8a7743", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7745", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7790", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7791", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7792", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7793", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7794", .data = &rcar_gen2_data },
{ .compatible = "renesas,rcar-gen2-msiof", .data = &rcar_gen2_data },
{ .compatible = "renesas,msiof-r8a7795", .data = &rcar_r8a7795_data },
{ .compatible = "renesas,msiof-r8a7796", .data = &rcar_gen3_data },
{ .compatible = "renesas,rcar-gen3-msiof", .data = &rcar_gen3_data },
{ .compatible = "renesas,rcar-gen4-msiof", .data = &rcar_gen3_data },
{ .compatible = "renesas,sh-msiof", .data = &sh_data }, /* Deprecated */