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The RZ/A1 is different than the other Renesas SOCs because the MSTP
registers are 8-bit instead of 32-bit and if you try writing values as
32-bit nothing happens...meaning this driver never worked for r7s72100.
Fixes: b6face404f ("ARM: shmobile: r7s72100: add essential clock nodes to dtsi")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add RZ/G1E (R8A7745) Clock Pulse Generator / Module Standby and Software
Reset support, using the CPG/MSSR driver core and the common R-Car Gen2
(and RZ/G) code.
Based on the proof-of-concept R8A7791 CPG/MSSR patch by Geert
Uytterhoeven <geert+renesas@glider.be>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add RZ/G1M (R8A7743) Clock Pulse Generator / Module Standby and Software
Reset support, using the CPG/MSSR driver core and the common R-Car Gen2
(and RZ/G) code.
Based on the proof-of-concept R8A7791 CPG/MSSR patch by Geert
Uytterhoeven <geert+renesas@glider.be>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add the common R-Car Gen2 (and RZ/G) Clock Pulse Generator / Module
Standby and Software Reset support code, using the CPG/MSSR driver
core.
Based on the proof-of-concept R8A7791 CPG/MSSR patch by Geert
Uytterhoeven <geert+renesas@glider.be>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Correct HDMI parent clock so that the rate of the
HDMI clock is 1/4 rather than 1/2 of the rate of PLL1
as per the v0.52 (Jun, 15) manual.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
All R-Car Gen3 clock drivers now obtain the values of the mode pins from
the R-Car RST driver.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Obtain the values of the mode pins from the R-Car RST driver, which
relies on the presence in DT of a device node for the RST module.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Obtain the values of the mode pins from the R-Car RST driver, which
relies on the presence in DT of a device node for the RST module.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Obtain the values of the mode pins from the R-Car RST driver, which
relies on the presence in DT of a device node for the RST module.
Fall back to our own private copy of rcar_gen2_read_mode_pins() for
backward-compatibility with old DTs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Obtain the values of the mode pins from the R-Car RST driver, which
relies on the presence in DT of a device node for the RESET/WDT module.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Obtain the values of the mode pins from the R-Car RST driver, which
relies on the presence in DT of a device node for the RESET/WDT module.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
The intention was to enable the checks if debugging is enabled, not
disabled.
Fixes: f793d1e517 ("clk: shmobile: Add new CPG/MSSR driver core")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The R-Car Gen3 CPG/MSSR driver uses a mix of clk_readl()/clk_writel()
and readl()/writel() to access the clock registers. Settle on the
generic readl()/writel().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
The Renesas CPG/MSSR driver core uses a mix of clk_readl()/clk_writel()
and readl()/writel() to access the clock registers. Settle on the
generic readl()/writel().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Check the MD_CLK pin to determine the current clock mode in order to set
the pll clock parent correctly.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add all clocks needed to use the SDHI interfaces on the Renesas R-Car M3-W
(r8a7796) SoC.
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Merge tag 'clk-renesas-for-v4.9-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
Pull renesas r8a7796 SDHI clock support from Geert Uytterhoeven:
Add all clocks needed to use the SDHI interfaces on the Renesas R-Car M3-W
(r8a7796) SoC.
* tag 'clk-renesas-for-v4.9-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: r8a7796: Add SDIF clocks
clk: renesas: r8a7796: Add GPIO clocks
This patch adds SDIF clocks for R8A7796 SoC.
Based on work by Ai Kyuse and Yoshihiro Shimoda for the r8a7795 SoC.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add all clocks related to the Watchdog Timer (WDT) controller on the
Renesas R-Car M3-W (r8a7796) SoC.
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Merge tag 'clk-renesas-for-v4.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
Merge r8a7796 watchdog clk support from Geert Uytterhoeven:
Add all clocks related to the Watchdog Timer (WDT) controller on the
Renesas R-Car M3-W (r8a7796) SoC.
* tag 'clk-renesas-for-v4.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: r8a7796: Add watchdog module clock
clk: renesas: r8a7796: Add watchdog core clocks
According to the datasheet, SDn clocks are from the SDSRC clock. And
the SDSRC has a 1/2 divider. So, we should have ".sdsrc" as an internal
core clock. Otherwise, since the sdhi driver will calculate clock for
a sd card using the wrong parent clock rate, and then performance will
be not good.
Fixes: 90c073e539 ("clk: shmobile: r8a7795: Add SD divider support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add the module clock for the Watchdog Timer (WDT) controller on the
Renesas R-Car M3-W (r8a7796) SoC.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add all core clocks related to the Watchdog Timer (WDT) controller on
the Renesas R-Car M3-W (r8a7796) SoC: OSC, Internal RCLK, and RCLK.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
According to the latest information, the parent clock of the LVDS module
clock is the S0D4 clock, not the S2D1 clock.
Note that this change has no influence on actual operation, as the
rcar-du LVDS encoder driver doesn't use the parent clock's rate.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Initial support for R-Car M3-W (r8a7796), including basic core clocks,
and SCIF2 (console) and INTC-AP (GIC) module clocks.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Extract the code to support parts common to all members of the R-Car
Gen3 SoC family into a separate file, to ease sharing among SoC-specific
drivers.
Note that while the cpg_pll_configs[] arrays and the selection of the
config based on the MODE bits are identical on R-Car H3 and R-Car M3-W,
they are not common, and may be different on other R-Car Gen3 SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
