clk: renesas: r9a07g043: Drop WDT2 clock and reset entry

[PATCH] clk: renesas: r9a07g043: Drop WDT2 clock and reset entry

Posted by Prabhakar 3 years, 5 months ago

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

WDT CH2 is specifically to check the operation of Cortex-M33 CPU and if
used from CA55 CPU would result in an unexpected behaviour. Hence drop
WDT2 clock and reset entries.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/clk/renesas/r9a07g043-cpg.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/clk/renesas/r9a07g043-cpg.c b/drivers/clk/renesas/r9a07g043-cpg.c
index 37475465100d..99f72bf590fa 100644
--- a/drivers/clk/renesas/r9a07g043-cpg.c
+++ b/drivers/clk/renesas/r9a07g043-cpg.c
@@ -158,10 +158,6 @@ static struct rzg2l_mod_clk r9a07g043_mod_clks[] = {
 				0x548, 0),
 	DEF_MOD("wdt0_clk",	R9A07G043_WDT0_CLK, R9A07G043_OSCCLK,
 				0x548, 1),
-	DEF_MOD("wdt2_pclk",	R9A07G043_WDT2_PCLK, R9A07G043_CLK_P0,
-				0x548, 4),
-	DEF_MOD("wdt2_clk",	R9A07G043_WDT2_CLK, R9A07G043_OSCCLK,
-				0x548, 5),
 	DEF_MOD("spi_clk2",	R9A07G043_SPI_CLK2, R9A07G043_CLK_SPI1,
 				0x550, 0),
 	DEF_MOD("spi_clk",	R9A07G043_SPI_CLK, R9A07G043_CLK_SPI0,
@@ -269,7 +265,6 @@ static struct rzg2l_reset r9a07g043_resets[] = {
 	DEF_RST(R9A07G043_OSTM1_PRESETZ, 0x834, 1),
 	DEF_RST(R9A07G043_OSTM2_PRESETZ, 0x834, 2),
 	DEF_RST(R9A07G043_WDT0_PRESETN, 0x848, 0),
-	DEF_RST(R9A07G043_WDT2_PRESETN, 0x848, 2),
 	DEF_RST(R9A07G043_SPI_RST, 0x850, 0),
 	DEF_RST(R9A07G043_SDHI0_IXRST, 0x854, 0),
 	DEF_RST(R9A07G043_SDHI1_IXRST, 0x854, 1),
-- 
2.25.1

Re: [PATCH] clk: renesas: r9a07g043: Drop WDT2 clock and reset entry

Posted by Geert Uytterhoeven 3 years, 5 months ago

On Mon, Oct 10, 2022 at 1:13 AM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> WDT CH2 is specifically to check the operation of Cortex-M33 CPU and if
> used from CA55 CPU would result in an unexpected behaviour. Hence drop
> WDT2 clock and reset entries.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-clk-for-v6.2.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH] clk: renesas: r9a07g043: Drop WDT2 clock and reset entry

Posted by Wolfram Sang 3 years, 5 months ago

On Mon, Oct 10, 2022 at 12:12:53AM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> WDT CH2 is specifically to check the operation of Cortex-M33 CPU and if
> used from CA55 CPU would result in an unexpected behaviour. Hence drop
> WDT2 clock and reset entries.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>