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From:   Prabhakar <prabhakar.csengg@gmail.com>
To:     Geert Uytterhoeven <geert+renesas@glider.be>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>
Cc:     linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
        Prabhakar <prabhakar.csengg@gmail.com>,
        Biju Das <biju.das.jz@bp.renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH v2] clk: renesas: r9a07g043: Hide WDT2 clock and reset entries for RZ/Five
Date:   Mon, 19 Sep 2022 13:38:53 +0100
Message-Id: <20220919123853.157883-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
MIME-Version: 1.0
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From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Move the WDT2 clock and reset entries under CONFIG_ARM64 so that its only
visible for RZ/G2UL (ARM64) SoC as the RZ/Five (RISC-V) SoC doesn't have
the WDT2 channel.

While at it, add the WDT2 clocks to r9a07g043_crit_mod_clks[] list as WDT
CH2 is specifically to check the operation of Cortex-M33 CPU on the RZ/G2UL
SoC and we dont want to turn off the clocks of WDT2 if it isn't enabled by
Cortex-A55.

Fixes: 95d48d270305 ("clk: renesas: r9a07g043: Add support for RZ/Five SoC")
Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v1 -> v2
* Moved the entries in existing section of ARM64
* Updated the commit message
---
 drivers/clk/renesas/r9a07g043-cpg.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/renesas/r9a07g043-cpg.c b/drivers/clk/renesas/r9a07g043-cpg.c
index 37475465100d..e4f7f6ade427 100644
--- a/drivers/clk/renesas/r9a07g043-cpg.c
+++ b/drivers/clk/renesas/r9a07g043-cpg.c
@@ -137,6 +137,10 @@ static struct rzg2l_mod_clk r9a07g043_mod_clks[] = {
 				0x518, 0),
 	DEF_MOD("ia55_clk",	R9A07G043_IA55_CLK, R9A07G043_CLK_P1,
 				0x518, 1),
+	DEF_MOD("wdt2_pclk",	R9A07G043_WDT2_PCLK, R9A07G043_CLK_P0,
+				0x548, 4),
+	DEF_MOD("wdt2_clk",	R9A07G043_WDT2_CLK, R9A07G043_OSCCLK,
+				0x548, 5),
 #endif
 #ifdef CONFIG_RISCV
 	DEF_MOD("iax45_pclk",	R9A07G043_IAX45_PCLK, R9A07G043_CLK_P2,
@@ -158,10 +162,6 @@ 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,
@@ -259,6 +259,7 @@ static struct rzg2l_reset r9a07g043_resets[] = {
 	DEF_RST(R9A07G043_GIC600_GICRESET_N, 0x814, 0),
 	DEF_RST(R9A07G043_GIC600_DBG_GICRESET_N, 0x814, 1),
 	DEF_RST(R9A07G043_IA55_RESETN, 0x818, 0),
+	DEF_RST(R9A07G043_WDT2_PRESETN, 0x848, 2),
 #endif
 #ifdef CONFIG_RISCV
 	DEF_RST(R9A07G043_IAX45_RESETN, 0x818, 0),
@@ -269,7 +270,6 @@ 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),
@@ -311,6 +311,8 @@ static const unsigned int r9a07g043_crit_mod_clks[] __initconst = {
 #ifdef CONFIG_ARM64
 	MOD_CLK_BASE + R9A07G043_GIC600_GICCLK,
 	MOD_CLK_BASE + R9A07G043_IA55_CLK,
+	MOD_CLK_BASE + R9A07G043_WDT2_PCLK,
+	MOD_CLK_BASE + R9A07G043_WDT2_CLK,
 #endif
 #ifdef CONFIG_RISCV
 	MOD_CLK_BASE + R9A07G043_IAX45_CLK,
-- 
2.25.1