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It does not make sense to have a comma after a sentinel, as any new
elements must be added before the sentinel. Hence drop all such commas.
Add comments to clarify the purpose of the empty elements.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/845f1d8285dd44522af1b0f429d4c6bd4759eb9e.1678272180.git.geert+renesas@glider.be
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Commit 537db25ca330dce0 ("pinctrl: renesas: Add I/O voltage level
flag") introduced new flags to support pins that can switch their
voltage levels between either 1.8V and 3.3V, or between 2.5V and 3.3V.
The old SH_PFC_PIN_CFG_IO_VOLTAGE flag was retained to avoid having to
change existing drivers.
Replace SH_PFC_PIN_CFG_IO_VOLTAGE by SH_PFC_PIN_CFG_IO_VOLTAGE_18_33, to
make the voltage configuration explicit, and to prepare for the advent
of support for more voltage levels.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/ae5f879c093f3e3cd50ba1495975bccfad81237b.1678271030.git.geert+renesas@glider.be
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Replace the full descriptions of reserved register fields by shorthands
with a negative field width, and merge adjacent reserved fields.
This reduces kernel size by 349 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/972808be595fd742afc6b7fc89751ca4788d6f62.1649865241.git.geert+renesas@glider.be
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The pfc parameter of the .pin_to_pocctrl() method was never used.
It is a relic of the old I/O voltage handling before commit
8775306dcf48092f ("pinctrl: sh-pfc: refactor voltage setting").
Remove the parameter, as it prevents the checker from calling this
function for validating consistency of the pin control tables.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/822133086f32618c7fc920123c6a96f5d4ea7ad6.1640270559.git.geert+renesas@glider.be
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Pin groups sdhi[012]_data1 are subsets of sdhi[012]_data4.
This reduces kernel size by 24 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/cb39cb8fe9152197df56f70b4b146d8fe96fb0b7.1640269757.git.geert+renesas@glider.be
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Pin groups qspi_data2{,_b} are subsets of qspi_data4{,_b}.
This reduces kernel size by 32 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/fbfd27a143e87fdb94acec2e3fa8db9029e2c99c.1640269757.git.geert+renesas@glider.be
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Pin groups mmc_data[14] are subsets of mmc_data8.
Treat mmc_data8_b the same for consistency. Note that there is no need
to define 1-bit and 4-bit wide subsets for the b-variant, as they're
identical to the normal variants.
This reduces kernel size by 40 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/be1f11c87e51224e043291f4d8e28b620811ac76.1640269757.git.geert+renesas@glider.be
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Pin group hscif1_data_e can be an alias for hscif1_data_c.
This reduces kernel size by 16 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/5afdfcaa24d41ebc50af37ff5da055203744f8b5.1640269757.git.geert+renesas@glider.be
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The VIN_DATA_PIN_GROUP() macro and vin_data{12,16,} unions are used to
define multiple VIN data groups with different numbers of lanes, while
referring to a single array of data pins, thus saving memory.
However, the same feature would be useful for other resizable buses,
like MMC, SDHI, QSPI, LCD, BSC, ...
Rework the mechanism for generic use:
- Use the new SH_PFC_PIN_GROUP_SUBSET() helper to remove the need for
bus-specific unions,
- Rename VIN_DATA_PIN_GROUP() to BUS_DATA_PIN_GROUP(),
- Rename the macro parameters to better reflect their purposes,
- Move the macro up, where it belongs.
Update all individual pin control drivers for the above changes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/cccfcfd01eb8ab7a587b084c4ddbf97293bd7291.1640269757.git.geert+renesas@glider.be
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Some instances of struct sh_pfc_soc_operations are called
"<soc>_pfc_ops", others are called "<soc>_pinmux_ops" or just
"pinmux_ops". Settle on the first variant, to avoid confusion with
"struct pinmux_ops" in the pinctrl core, and to increase consistency.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2ab33ad1d6a20a57d16922678b78810fa55b7fc0.1640269757.git.geert+renesas@glider.be
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The INTC_IRQx_N pin functions were only documented in preliminary
versions of the R-Car M2 Hardware User's Manual, and were never used.
This reduces kernel size by 40 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/932834b388887e1ae267e5a852c688c79091a5f9.1640269369.git.geert+renesas@glider.be
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Implement support for pull-up (most pins) and pull-down (ASEBRK#/ACK)
handling for R-Car M2-W and M2-N, and RZ/G1M and RZ/G1N SoCs, using the
common R-Car bias handling.
Note that on RZ/G1 SoCs, the "ASEBRK#/ACK" pin is called "ACK", but the
code doesn't handle that naming difference. Hence users should use the
R-Car naming in DTS files.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20210303132619.3938128-7-geert+renesas@glider.be
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This driver supports both RZ/G1[MN] and R-Car M2-W/M2-N SoCs.
Optimize pinctrl image size for RZ/G1[MN], when support for R-Car
M2-W/M2-N (R8A779[13]) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019124258.4574-7-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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The drivers/pinctrl/sh-pfc subdirectory was originally created to group
pin control drivers for various Renesas SuperH and SH-Mobile platforms.
However, the name "sh-pfc" no longer reflects its contents, as the
directory now contains pin control drivers for Renesas SuperH, ARM32,
and ARM64 SoCs.
Hence rename the subdirectory from drivers/pinctrl/sh-pfc to
drivers/pinctrl/renesas, and the related Kconfig symbol from
PINCTRL_SH_PFC to PINCTRL_RENESAS.
Rename the git branch in MAINTAINERS, too, for consistency.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-3-geert+renesas@glider.be
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