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The clock structure for RZ/V2L is almost identical to the RZ/G2L SoC.
The only difference being that RZ/V2L has additional registers to
control clocks and resets for the DRP-AI block.
Reuse r9a07g044-cpg.c, as the clock IDs and reset IDs are the same
between RZ/G2L and RZ/V2L, and add a separate r9a07g054_cpg_info to take
care of the DRP-AI clocks/resets.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220205084006.7142-1-biju.das.jz@bp.renesas.com
Link: https://lore.kernel.org/r/20220209203411.22332-1-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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of_genpd_add_provider_simple() might fail, this patch makes sure we check
the return value of of_genpd_add_provider_simple() by propagating the
return value to the caller of rzg2l_cpg_add_clk_domain().
Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211117115101.28281-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Make sure we check the return value of pm_genpd_init() which might fail.
Also add a devres action to remove the power-domain in-case the probe
callback fails further down in the code flow.
Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211117115101.28281-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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make W=1:
drivers/clk/renesas/rzg2l-cpg.c:95: warning: Function parameter or member 'num_resets' not described in 'rzg2l_cpg_priv'
Add the missing kerneldoc for fields in struct rzg2l_cpg_priv and struct
rzg2l_cpg_info related to Module Resets.
Fixes: c3e67ad6f5a2c698 ("dt-bindings: clock: r9a07g044-cpg: Update clock/reset definitions")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/39c2c5fd4232b6620a4a56dba4e2b0d61476ee36.1634646869.git.geert+renesas@glider.be
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Add SDHI clk mux support to select SDHI clock from different clock
sources.
As per HW manual, direct clock switching from 533MHz to 400MHz and
vice versa is not recommended. So added support for handling this
in mux.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211007111434.8665-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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The AXI and CHI clocks use the same register bit for controlling clock
output. Add a new clock type for coupled clocks, which sets the
CPG_CLKON_ETH.CLK[01]_ON bit when at least one clock is enabled, and
clears the bit only when both clocks are disabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20210922155145.28156-4-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add support to handle mux clocks in order to select a clock source
from multiple sources.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20210922155145.28156-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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As per RZ/G2L HW(Rev.0.50) manual, clock monitor register value
0 means clock is not supplied and 1 means clock is supplied.
This patch fixes the issue by removing the inverted logic.
Fixing the above, triggered following 2 issues
1) GIC interrupts don't work if we disable IA55_CLK and DMAC_ACLK.
Fixed this issue by adding these clocks as critical clocks.
2) DMA is not working, since the DMA driver is not turning on DMAC_PCLK.
So will provide a fix in the DMA driver to turn on DMA_PCLK.
Fixes: ef3c613ccd68 ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20210922112405.26413-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Rename renesas-rzg2l-cpg.c and renesas-rzg2l-cpg.h to rzg2l-cpg.c resp.
rzg2l-cpg.h, for consistency with other (sub)drivers.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/edc442daaedffcf10e835ff479d906fcae0e59db.1626268821.git.geert+renesas@glider.be
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