pmdomain: Rename the genpd subsystem to pmdomain

It has been pointed out that naming a subsystem "genpd" isn't very
self-explanatory and the acronym itself that means Generic PM Domain, is
known only by a limited group of people.

In a way to improve the situation, let's rename the subsystem to pmdomain,
which ideally should indicate that this is about so called Power Domains or
"PM domains" as we often also use within the Linux Kernel terminology.

Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230912221127.487327-1-ulf.hansson@linaro.org

1 files changed, 55 insertions, 0 deletions

diff --git a/drivers/pmdomain/renesas/r8a774c0-sysc.c b/drivers/pmdomain/renesas/r8a774c0-sysc.c
new file mode 100644
index 000000000000..c1c216f7d073
--- /dev/null
+++ b/drivers/pmdomain/renesas/r8a774c0-sysc.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas RZ/G2E System Controller
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ *
+ * Based on Renesas R-Car E3 System Controller
+ */
+
+#include <linux/bits.h>
+#include <linux/kernel.h>
+#include <linux/sys_soc.h>
+
+#include <dt-bindings/power/r8a774c0-sysc.h>
+
+#include "rcar-sysc.h"
+
+static struct rcar_sysc_area r8a774c0_areas[] __initdata = {
+	{ "always-on",	    0, 0, R8A774C0_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+	{ "ca53-scu",	0x140, 0, R8A774C0_PD_CA53_SCU,  R8A774C0_PD_ALWAYS_ON,
+	  PD_SCU },
+	{ "ca53-cpu0",	0x200, 0, R8A774C0_PD_CA53_CPU0, R8A774C0_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu1",	0x200, 1, R8A774C0_PD_CA53_CPU1, R8A774C0_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "a3vc",	0x380, 0, R8A774C0_PD_A3VC,	R8A774C0_PD_ALWAYS_ON },
+	{ "a2vc1",	0x3c0, 1, R8A774C0_PD_A2VC1,	R8A774C0_PD_A3VC },
+	{ "3dg-a",	0x100, 0, R8A774C0_PD_3DG_A,	R8A774C0_PD_ALWAYS_ON },
+	{ "3dg-b",	0x100, 1, R8A774C0_PD_3DG_B,	R8A774C0_PD_3DG_A },
+};
+
+/* Fixups for RZ/G2E ES1.0 revision */
+static const struct soc_device_attribute r8a774c0[] __initconst = {
+	{ .soc_id = "r8a774c0", .revision = "ES1.0" },
+	{ /* sentinel */ }
+};
+
+static int __init r8a774c0_sysc_init(void)
+{
+	if (soc_device_match(r8a774c0)) {
+		/* Fix incorrect 3DG hierarchy */
+		swap(r8a774c0_areas[6], r8a774c0_areas[7]);
+		r8a774c0_areas[6].parent = R8A774C0_PD_ALWAYS_ON;
+		r8a774c0_areas[7].parent = R8A774C0_PD_3DG_B;
+	}
+
+	return 0;
+}
+
+const struct rcar_sysc_info r8a774c0_sysc_info __initconst = {
+	.init = r8a774c0_sysc_init,
+	.areas = r8a774c0_areas,
+	.num_areas = ARRAY_SIZE(r8a774c0_areas),
+	.extmask_offs = 0x2f8,
+	.extmask_val = BIT(0),
+};