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-rw-r--r--drivers/pmdomain/renesas/Kconfig4
-rw-r--r--drivers/pmdomain/renesas/Makefile5
-rw-r--r--drivers/pmdomain/renesas/r8a77960-sysc.c49
-rw-r--r--drivers/pmdomain/renesas/r8a77961-sysc.c (renamed from drivers/pmdomain/renesas/r8a7796-sysc.c)28
-rw-r--r--drivers/pmdomain/renesas/r8a77980-sysc.c3
-rw-r--r--drivers/pmdomain/renesas/r8a779a0-sysc.c12
-rw-r--r--drivers/pmdomain/renesas/r8a779f0-sysc.c12
-rw-r--r--drivers/pmdomain/renesas/r8a779g0-sysc.c12
-rw-r--r--drivers/pmdomain/renesas/r8a779h0-sysc.c54
-rw-r--r--drivers/pmdomain/renesas/rcar-gen4-sysc.c22
-rw-r--r--drivers/pmdomain/renesas/rcar-gen4-sysc.h1
-rw-r--r--drivers/pmdomain/renesas/rcar-sysc.c81
-rw-r--r--drivers/pmdomain/renesas/rcar-sysc.h9
-rw-r--r--drivers/pmdomain/renesas/rmobile-sysc.c8
14 files changed, 160 insertions, 140 deletions
diff --git a/drivers/pmdomain/renesas/Kconfig b/drivers/pmdomain/renesas/Kconfig
index 80bf2cf8b60e..54acb4b1ec7c 100644
--- a/drivers/pmdomain/renesas/Kconfig
+++ b/drivers/pmdomain/renesas/Kconfig
@@ -71,6 +71,10 @@ config SYSC_R8A779G0
bool "System Controller support for R-Car V4H" if COMPILE_TEST
select SYSC_RCAR_GEN4
+config SYSC_R8A779H0
+ bool "System Controller support for R-Car V4M" if COMPILE_TEST
+ select SYSC_RCAR_GEN4
+
config SYSC_RMOBILE
bool "System Controller support for R-Mobile" if COMPILE_TEST
diff --git a/drivers/pmdomain/renesas/Makefile b/drivers/pmdomain/renesas/Makefile
index e306e396fc8c..0391e6e67440 100644
--- a/drivers/pmdomain/renesas/Makefile
+++ b/drivers/pmdomain/renesas/Makefile
@@ -14,8 +14,8 @@ obj-$(CONFIG_SYSC_R8A7791) += r8a7791-sysc.o
obj-$(CONFIG_SYSC_R8A7792) += r8a7792-sysc.o
obj-$(CONFIG_SYSC_R8A7794) += r8a7794-sysc.o
obj-$(CONFIG_SYSC_R8A7795) += r8a7795-sysc.o
-obj-$(CONFIG_SYSC_R8A77960) += r8a7796-sysc.o
-obj-$(CONFIG_SYSC_R8A77961) += r8a7796-sysc.o
+obj-$(CONFIG_SYSC_R8A77960) += r8a77960-sysc.o
+obj-$(CONFIG_SYSC_R8A77961) += r8a77961-sysc.o
obj-$(CONFIG_SYSC_R8A77965) += r8a77965-sysc.o
obj-$(CONFIG_SYSC_R8A77970) += r8a77970-sysc.o
obj-$(CONFIG_SYSC_R8A77980) += r8a77980-sysc.o
@@ -24,6 +24,7 @@ obj-$(CONFIG_SYSC_R8A77995) += r8a77995-sysc.o
obj-$(CONFIG_SYSC_R8A779A0) += r8a779a0-sysc.o
obj-$(CONFIG_SYSC_R8A779F0) += r8a779f0-sysc.o
obj-$(CONFIG_SYSC_R8A779G0) += r8a779g0-sysc.o
+obj-$(CONFIG_SYSC_R8A779H0) += r8a779h0-sysc.o
# Family
obj-$(CONFIG_SYSC_RCAR) += rcar-sysc.o
obj-$(CONFIG_SYSC_RCAR_GEN4) += rcar-gen4-sysc.o
diff --git a/drivers/pmdomain/renesas/r8a77960-sysc.c b/drivers/pmdomain/renesas/r8a77960-sysc.c
new file mode 100644
index 000000000000..2ab3f565d2b0
--- /dev/null
+++ b/drivers/pmdomain/renesas/r8a77960-sysc.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas R-Car M3-W System Controller
+ *
+ * Copyright (C) 2016 Glider bvba
+ * Copyright (C) 2018-2019 Renesas Electronics Corporation
+ */
+
+#include <linux/bits.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7796-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77960_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7796_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca57-scu", 0x1c0, 0, R8A7796_PD_CA57_SCU, R8A7796_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca57-cpu0", 0x80, 0, R8A7796_PD_CA57_CPU0, R8A7796_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca57-cpu1", 0x80, 1, R8A7796_PD_CA57_CPU1, R8A7796_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca53-scu", 0x140, 0, R8A7796_PD_CA53_SCU, R8A7796_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A7796_PD_CA53_CPU0, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu1", 0x200, 1, R8A7796_PD_CA53_CPU1, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu2", 0x200, 2, R8A7796_PD_CA53_CPU2, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu3", 0x200, 3, R8A7796_PD_CA53_CPU3, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "cr7", 0x240, 0, R8A7796_PD_CR7, R8A7796_PD_ALWAYS_ON },
+ { "a3vc", 0x380, 0, R8A7796_PD_A3VC, R8A7796_PD_ALWAYS_ON,
+ PD_OFF_DELAY },
+ { "a2vc0", 0x3c0, 0, R8A7796_PD_A2VC0, R8A7796_PD_A3VC },
+ { "a2vc1", 0x3c0, 1, R8A7796_PD_A2VC1, R8A7796_PD_A3VC },
+ { "3dg-a", 0x100, 0, R8A7796_PD_3DG_A, R8A7796_PD_ALWAYS_ON },
+ { "3dg-b", 0x100, 1, R8A7796_PD_3DG_B, R8A7796_PD_3DG_A },
+ { "a3ir", 0x180, 0, R8A7796_PD_A3IR, R8A7796_PD_ALWAYS_ON,
+ PD_OFF_DELAY },
+};
+
+
+const struct rcar_sysc_info r8a77960_sysc_info __initconst = {
+ .areas = r8a77960_areas,
+ .num_areas = ARRAY_SIZE(r8a77960_areas),
+};
diff --git a/drivers/pmdomain/renesas/r8a7796-sysc.c b/drivers/pmdomain/renesas/r8a77961-sysc.c
index 471bd5b3b6ad..a1155068ee7a 100644
--- a/drivers/pmdomain/renesas/r8a7796-sysc.c
+++ b/drivers/pmdomain/renesas/r8a77961-sysc.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Renesas R-Car M3-W/W+ System Controller
+ * Renesas R-Car M3-W+ System Controller
*
* Copyright (C) 2016 Glider bvba
* Copyright (C) 2018-2019 Renesas Electronics Corporation
@@ -13,7 +13,7 @@
#include "rcar-sysc.h"
-static struct rcar_sysc_area r8a7796_areas[] __initdata = {
+static const struct rcar_sysc_area r8a77961_areas[] __initconst = {
{ "always-on", 0, 0, R8A7796_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
{ "ca57-scu", 0x1c0, 0, R8A7796_PD_CA57_SCU, R8A7796_PD_ALWAYS_ON,
PD_SCU },
@@ -33,35 +33,15 @@ static struct rcar_sysc_area r8a7796_areas[] __initdata = {
PD_CPU_NOCR },
{ "cr7", 0x240, 0, R8A7796_PD_CR7, R8A7796_PD_ALWAYS_ON },
{ "a3vc", 0x380, 0, R8A7796_PD_A3VC, R8A7796_PD_ALWAYS_ON },
- { "a2vc0", 0x3c0, 0, R8A7796_PD_A2VC0, R8A7796_PD_A3VC },
{ "a2vc1", 0x3c0, 1, R8A7796_PD_A2VC1, R8A7796_PD_A3VC },
{ "3dg-a", 0x100, 0, R8A7796_PD_3DG_A, R8A7796_PD_ALWAYS_ON },
{ "3dg-b", 0x100, 1, R8A7796_PD_3DG_B, R8A7796_PD_3DG_A },
{ "a3ir", 0x180, 0, R8A7796_PD_A3IR, R8A7796_PD_ALWAYS_ON },
};
-
-#ifdef CONFIG_SYSC_R8A77960
-const struct rcar_sysc_info r8a77960_sysc_info __initconst = {
- .areas = r8a7796_areas,
- .num_areas = ARRAY_SIZE(r8a7796_areas),
-};
-#endif /* CONFIG_SYSC_R8A77960 */
-
-#ifdef CONFIG_SYSC_R8A77961
-static int __init r8a77961_sysc_init(void)
-{
- rcar_sysc_nullify(r8a7796_areas, ARRAY_SIZE(r8a7796_areas),
- R8A7796_PD_A2VC0);
-
- return 0;
-}
-
const struct rcar_sysc_info r8a77961_sysc_info __initconst = {
- .init = r8a77961_sysc_init,
- .areas = r8a7796_areas,
- .num_areas = ARRAY_SIZE(r8a7796_areas),
+ .areas = r8a77961_areas,
+ .num_areas = ARRAY_SIZE(r8a77961_areas),
.extmask_offs = 0x2f8,
.extmask_val = BIT(0),
};
-#endif /* CONFIG_SYSC_R8A77961 */
diff --git a/drivers/pmdomain/renesas/r8a77980-sysc.c b/drivers/pmdomain/renesas/r8a77980-sysc.c
index 39ca84a67daa..621e411fc999 100644
--- a/drivers/pmdomain/renesas/r8a77980-sysc.c
+++ b/drivers/pmdomain/renesas/r8a77980-sysc.c
@@ -25,7 +25,8 @@ static const struct rcar_sysc_area r8a77980_areas[] __initconst = {
PD_CPU_NOCR },
{ "ca53-cpu3", 0x200, 3, R8A77980_PD_CA53_CPU3, R8A77980_PD_CA53_SCU,
PD_CPU_NOCR },
- { "cr7", 0x240, 0, R8A77980_PD_CR7, R8A77980_PD_ALWAYS_ON },
+ { "cr7", 0x240, 0, R8A77980_PD_CR7, R8A77980_PD_ALWAYS_ON,
+ PD_CPU_NOCR },
{ "a3ir", 0x180, 0, R8A77980_PD_A3IR, R8A77980_PD_ALWAYS_ON },
{ "a2ir0", 0x400, 0, R8A77980_PD_A2IR0, R8A77980_PD_A3IR },
{ "a2ir1", 0x400, 1, R8A77980_PD_A2IR1, R8A77980_PD_A3IR },
diff --git a/drivers/pmdomain/renesas/r8a779a0-sysc.c b/drivers/pmdomain/renesas/r8a779a0-sysc.c
index 04f1bc322ae7..54cdf250f7c2 100644
--- a/drivers/pmdomain/renesas/r8a779a0-sysc.c
+++ b/drivers/pmdomain/renesas/r8a779a0-sysc.c
@@ -5,19 +5,7 @@
* Copyright (C) 2020 Renesas Electronics Corp.
*/
-#include <linux/bits.h>
-#include <linux/clk/renesas.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/iopoll.h>
#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/of_address.h>
-#include <linux/pm_domain.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
#include <dt-bindings/power/r8a779a0-sysc.h>
diff --git a/drivers/pmdomain/renesas/r8a779f0-sysc.c b/drivers/pmdomain/renesas/r8a779f0-sysc.c
index 5602aa6bd7ed..6ed13cd1cb24 100644
--- a/drivers/pmdomain/renesas/r8a779f0-sysc.c
+++ b/drivers/pmdomain/renesas/r8a779f0-sysc.c
@@ -5,19 +5,7 @@
* Copyright (C) 2021 Renesas Electronics Corp.
*/
-#include <linux/bits.h>
-#include <linux/clk/renesas.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/iopoll.h>
#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/of_address.h>
-#include <linux/pm_domain.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
#include <dt-bindings/power/r8a779f0-sysc.h>
diff --git a/drivers/pmdomain/renesas/r8a779g0-sysc.c b/drivers/pmdomain/renesas/r8a779g0-sysc.c
index b932eba1b804..249cf43af45b 100644
--- a/drivers/pmdomain/renesas/r8a779g0-sysc.c
+++ b/drivers/pmdomain/renesas/r8a779g0-sysc.c
@@ -5,19 +5,7 @@
* Copyright (C) 2022 Renesas Electronics Corp.
*/
-#include <linux/bits.h>
-#include <linux/clk/renesas.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/iopoll.h>
#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/of_address.h>
-#include <linux/pm_domain.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
#include <dt-bindings/power/r8a779g0-sysc.h>
diff --git a/drivers/pmdomain/renesas/r8a779h0-sysc.c b/drivers/pmdomain/renesas/r8a779h0-sysc.c
new file mode 100644
index 000000000000..e13372cb80ee
--- /dev/null
+++ b/drivers/pmdomain/renesas/r8a779h0-sysc.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas R-Car V4M System Controller
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp
+ */
+
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/renesas,r8a779h0-sysc.h>
+
+#include "rcar-gen4-sysc.h"
+
+static struct rcar_gen4_sysc_area r8a779h0_areas[] __initdata = {
+ { "always-on", R8A779H0_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "c4", R8A779H0_PD_C4, R8A779H0_PD_ALWAYS_ON },
+ { "a2e0d0", R8A779H0_PD_A2E0D0, R8A779H0_PD_C4, PD_SCU },
+ { "a1e0d0c0", R8A779H0_PD_A1E0D0C0, R8A779H0_PD_A2E0D0, PD_CPU_NOCR },
+ { "a1e0d0c1", R8A779H0_PD_A1E0D0C1, R8A779H0_PD_A2E0D0, PD_CPU_NOCR },
+ { "a1e0d0c2", R8A779H0_PD_A1E0D0C2, R8A779H0_PD_A2E0D0, PD_CPU_NOCR },
+ { "a1e0d0c3", R8A779H0_PD_A1E0D0C3, R8A779H0_PD_A2E0D0, PD_CPU_NOCR },
+ { "a3cr0", R8A779H0_PD_A3CR0, R8A779H0_PD_ALWAYS_ON, PD_CPU_NOCR },
+ { "a3cr1", R8A779H0_PD_A3CR1, R8A779H0_PD_ALWAYS_ON, PD_CPU_NOCR },
+ { "a3cr2", R8A779H0_PD_A3CR2, R8A779H0_PD_ALWAYS_ON, PD_CPU_NOCR },
+ { "a33dga", R8A779H0_PD_A33DGA, R8A779H0_PD_C4 },
+ { "a23dgb", R8A779H0_PD_A23DGB, R8A779H0_PD_A33DGA },
+ { "a3vip0", R8A779H0_PD_A3VIP0, R8A779H0_PD_C4 },
+ { "a3vip2", R8A779H0_PD_A3VIP2, R8A779H0_PD_C4 },
+ { "a3dul", R8A779H0_PD_A3DUL, R8A779H0_PD_C4 },
+ { "a3isp0", R8A779H0_PD_A3ISP0, R8A779H0_PD_C4 },
+ { "a2cn0", R8A779H0_PD_A2CN0, R8A779H0_PD_C4 },
+ { "a1cn0", R8A779H0_PD_A1CN0, R8A779H0_PD_A2CN0 },
+ { "a1dsp0", R8A779H0_PD_A1DSP0, R8A779H0_PD_A2CN0 },
+ { "a1dsp1", R8A779H0_PD_A1DSP1, R8A779H0_PD_A2CN0 },
+ { "a2imp01", R8A779H0_PD_A2IMP01, R8A779H0_PD_C4 },
+ { "a2psc", R8A779H0_PD_A2PSC, R8A779H0_PD_C4 },
+ { "a2dma", R8A779H0_PD_A2DMA, R8A779H0_PD_C4 },
+ { "a2cv0", R8A779H0_PD_A2CV0, R8A779H0_PD_C4 },
+ { "a2cv1", R8A779H0_PD_A2CV1, R8A779H0_PD_C4 },
+ { "a2cv2", R8A779H0_PD_A2CV2, R8A779H0_PD_C4 },
+ { "a2cv3", R8A779H0_PD_A2CV3, R8A779H0_PD_C4 },
+ { "a3imr0", R8A779H0_PD_A3IMR0, R8A779H0_PD_C4 },
+ { "a3imr1", R8A779H0_PD_A3IMR1, R8A779H0_PD_C4 },
+ { "a3imr2", R8A779H0_PD_A3IMR2, R8A779H0_PD_C4 },
+ { "a3imr3", R8A779H0_PD_A3IMR3, R8A779H0_PD_C4 },
+ { "a3vc", R8A779H0_PD_A3VC, R8A779H0_PD_C4 },
+ { "a3pci", R8A779H0_PD_A3PCI, R8A779H0_PD_C4 },
+ { "a2pciphy", R8A779H0_PD_A2PCIPHY, R8A779H0_PD_A3PCI },
+};
+
+const struct rcar_gen4_sysc_info r8a779h0_sysc_info __initconst = {
+ .areas = r8a779h0_areas,
+ .num_areas = ARRAY_SIZE(r8a779h0_areas),
+};
diff --git a/drivers/pmdomain/renesas/rcar-gen4-sysc.c b/drivers/pmdomain/renesas/rcar-gen4-sysc.c
index 9e5e6e077abc..e001b5c25bed 100644
--- a/drivers/pmdomain/renesas/rcar-gen4-sysc.c
+++ b/drivers/pmdomain/renesas/rcar-gen4-sysc.c
@@ -50,13 +50,13 @@
#define SYSCSR_BUSY GENMASK(1, 0) /* All bit sets is not busy */
#define SYSCSR_TIMEOUT 10000
-#define SYSCSR_DELAY_US 10
+#define SYSCSR_DELAY_US 1
-#define PDRESR_RETRIES 1000
-#define PDRESR_DELAY_US 10
+#define PDRESR_RETRIES 10000
+#define PDRESR_DELAY_US 1
-#define SYSCISR_TIMEOUT 10000
-#define SYSCISR_DELAY_US 10
+#define SYSCISCR_TIMEOUT 10000
+#define SYSCISCR_DELAY_US 1
#define RCAR_GEN4_PD_ALWAYS_ON 64
#define NUM_DOMAINS_EACH_REG BITS_PER_TYPE(u32)
@@ -97,7 +97,7 @@ static int clear_irq_flags(unsigned int reg_idx, unsigned int isr_mask)
ret = readl_poll_timeout_atomic(rcar_gen4_sysc_base + SYSCISCR(reg_idx),
val, !(val & isr_mask),
- SYSCISR_DELAY_US, SYSCISR_TIMEOUT);
+ SYSCISCR_DELAY_US, SYSCISCR_TIMEOUT);
if (ret < 0) {
pr_err("\n %s : Can not clear IRQ flags in SYSCISCR", __func__);
return -EIO;
@@ -157,7 +157,7 @@ static int rcar_gen4_sysc_power(u8 pdr, bool on)
/* Wait until the power shutoff or resume request has completed * */
ret = readl_poll_timeout_atomic(rcar_gen4_sysc_base + SYSCISCR(reg_idx),
val, (val & isr_mask),
- SYSCISR_DELAY_US, SYSCISR_TIMEOUT);
+ SYSCISCR_DELAY_US, SYSCISCR_TIMEOUT);
if (ret < 0) {
ret = -EIO;
goto out;
@@ -285,6 +285,9 @@ static const struct of_device_id rcar_gen4_sysc_matches[] __initconst = {
#ifdef CONFIG_SYSC_R8A779G0
{ .compatible = "renesas,r8a779g0-sysc", .data = &r8a779g0_sysc_info },
#endif
+#ifdef CONFIG_SYSC_R8A779H0
+ { .compatible = "renesas,r8a779h0-sysc", .data = &r8a779h0_sysc_info },
+#endif
{ /* sentinel */ }
};
@@ -335,11 +338,6 @@ static int __init rcar_gen4_sysc_pd_init(void)
struct rcar_gen4_sysc_pd *pd;
size_t n;
- if (!area->name) {
- /* Skip NULLified area */
- continue;
- }
-
n = strlen(area->name) + 1;
pd = kzalloc(sizeof(*pd) + n, GFP_KERNEL);
if (!pd) {
diff --git a/drivers/pmdomain/renesas/rcar-gen4-sysc.h b/drivers/pmdomain/renesas/rcar-gen4-sysc.h
index 388cfa8f8f9f..fdf843aa5113 100644
--- a/drivers/pmdomain/renesas/rcar-gen4-sysc.h
+++ b/drivers/pmdomain/renesas/rcar-gen4-sysc.h
@@ -40,5 +40,6 @@ struct rcar_gen4_sysc_info {
extern const struct rcar_gen4_sysc_info r8a779a0_sysc_info;
extern const struct rcar_gen4_sysc_info r8a779f0_sysc_info;
extern const struct rcar_gen4_sysc_info r8a779g0_sysc_info;
+extern const struct rcar_gen4_sysc_info r8a779h0_sysc_info;
#endif /* __SOC_RENESAS_RCAR_GEN4_SYSC_H__ */
diff --git a/drivers/pmdomain/renesas/rcar-sysc.c b/drivers/pmdomain/renesas/rcar-sysc.c
index eed47696e825..047495f54e8a 100644
--- a/drivers/pmdomain/renesas/rcar-sysc.c
+++ b/drivers/pmdomain/renesas/rcar-sysc.c
@@ -45,10 +45,10 @@
#define PWRER_OFFS 0x14 /* Power Shutoff/Resume Error */
-#define SYSCSR_TIMEOUT 100
+#define SYSCSR_TIMEOUT 1000
#define SYSCSR_DELAY_US 1
-#define PWRER_RETRIES 100
+#define PWRER_RETRIES 1000
#define PWRER_DELAY_US 1
#define SYSCISR_TIMEOUT 1000
@@ -56,17 +56,20 @@
#define RCAR_PD_ALWAYS_ON 32 /* Always-on power area */
-struct rcar_sysc_ch {
+struct rcar_sysc_pd {
+ struct generic_pm_domain genpd;
u16 chan_offs;
u8 chan_bit;
u8 isr_bit;
+ unsigned int flags;
+ char name[];
};
static void __iomem *rcar_sysc_base;
static DEFINE_SPINLOCK(rcar_sysc_lock); /* SMP CPUs + I/O devices */
static u32 rcar_sysc_extmask_offs, rcar_sysc_extmask_val;
-static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
+static int rcar_sysc_pwr_on_off(const struct rcar_sysc_pd *pd, bool on)
{
unsigned int sr_bit, reg_offs;
u32 val;
@@ -87,17 +90,20 @@ static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
if (ret)
return -EAGAIN;
+ /* Power-off delay quirk */
+ if (!on && (pd->flags & PD_OFF_DELAY))
+ udelay(1);
+
/* Submit power shutoff or power resume request */
- iowrite32(BIT(sysc_ch->chan_bit),
- rcar_sysc_base + sysc_ch->chan_offs + reg_offs);
+ iowrite32(BIT(pd->chan_bit), rcar_sysc_base + pd->chan_offs + reg_offs);
return 0;
}
-static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
+static int rcar_sysc_power(const struct rcar_sysc_pd *pd, bool on)
{
- unsigned int isr_mask = BIT(sysc_ch->isr_bit);
- unsigned int chan_mask = BIT(sysc_ch->chan_bit);
+ unsigned int isr_mask = BIT(pd->isr_bit);
+ unsigned int chan_mask = BIT(pd->chan_bit);
unsigned int status, k;
unsigned long flags;
int ret;
@@ -125,12 +131,11 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
/* Submit power shutoff or resume request until it was accepted */
for (k = 0; k < PWRER_RETRIES; k++) {
- ret = rcar_sysc_pwr_on_off(sysc_ch, on);
+ ret = rcar_sysc_pwr_on_off(pd, on);
if (ret)
goto out;
- status = ioread32(rcar_sysc_base +
- sysc_ch->chan_offs + PWRER_OFFS);
+ status = ioread32(rcar_sysc_base + pd->chan_offs + PWRER_OFFS);
if (!(status & chan_mask))
break;
@@ -158,28 +163,21 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
spin_unlock_irqrestore(&rcar_sysc_lock, flags);
pr_debug("sysc power %s domain %d: %08x -> %d\n", on ? "on" : "off",
- sysc_ch->isr_bit, ioread32(rcar_sysc_base + SYSCISR), ret);
+ pd->isr_bit, ioread32(rcar_sysc_base + SYSCISR), ret);
return ret;
}
-static bool rcar_sysc_power_is_off(const struct rcar_sysc_ch *sysc_ch)
+static bool rcar_sysc_power_is_off(const struct rcar_sysc_pd *pd)
{
unsigned int st;
- st = ioread32(rcar_sysc_base + sysc_ch->chan_offs + PWRSR_OFFS);
- if (st & BIT(sysc_ch->chan_bit))
+ st = ioread32(rcar_sysc_base + pd->chan_offs + PWRSR_OFFS);
+ if (st & BIT(pd->chan_bit))
return true;
return false;
}
-struct rcar_sysc_pd {
- struct generic_pm_domain genpd;
- struct rcar_sysc_ch ch;
- unsigned int flags;
- char name[];
-};
-
static inline struct rcar_sysc_pd *to_rcar_pd(struct generic_pm_domain *d)
{
return container_of(d, struct rcar_sysc_pd, genpd);
@@ -190,7 +188,7 @@ static int rcar_sysc_pd_power_off(struct generic_pm_domain *genpd)
struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
pr_debug("%s: %s\n", __func__, genpd->name);
- return rcar_sysc_power(&pd->ch, false);
+ return rcar_sysc_power(pd, false);
}
static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
@@ -198,7 +196,7 @@ static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
pr_debug("%s: %s\n", __func__, genpd->name);
- return rcar_sysc_power(&pd->ch, true);
+ return rcar_sysc_power(pd, true);
}
static bool has_cpg_mstp;
@@ -252,12 +250,12 @@ static int __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd)
goto finalize;
}
- if (!rcar_sysc_power_is_off(&pd->ch)) {
+ if (!rcar_sysc_power_is_off(pd)) {
pr_debug("%s: %s is already powered\n", __func__, genpd->name);
goto finalize;
}
- rcar_sysc_power(&pd->ch, true);
+ rcar_sysc_power(pd, true);
finalize:
error = pm_genpd_init(genpd, &simple_qos_governor, false);
@@ -398,11 +396,6 @@ static int __init rcar_sysc_pd_init(void)
struct rcar_sysc_pd *pd;
size_t n;
- if (!area->name) {
- /* Skip NULLified area */
- continue;
- }
-
n = strlen(area->name) + 1;
pd = kzalloc(sizeof(*pd) + n, GFP_KERNEL);
if (!pd) {
@@ -412,9 +405,9 @@ static int __init rcar_sysc_pd_init(void)
memcpy(pd->name, area->name, n);
pd->genpd.name = pd->name;
- pd->ch.chan_offs = area->chan_offs;
- pd->ch.chan_bit = area->chan_bit;
- pd->ch.isr_bit = area->isr_bit;
+ pd->chan_offs = area->chan_offs;
+ pd->chan_bit = area->chan_bit;
+ pd->isr_bit = area->isr_bit;
pd->flags = area->flags;
error = rcar_sysc_pd_setup(pd);
@@ -436,8 +429,6 @@ static int __init rcar_sysc_pd_init(void)
}
error = of_genpd_add_provider_onecell(np, &domains->onecell_data);
- if (!error)
- fwnode_dev_initialized(of_fwnode_handle(np), true);
out_put:
of_node_put(np);
@@ -445,18 +436,6 @@ out_put:
}
early_initcall(rcar_sysc_pd_init);
-void __init rcar_sysc_nullify(struct rcar_sysc_area *areas,
- unsigned int num_areas, u8 id)
-{
- unsigned int i;
-
- for (i = 0; i < num_areas; i++)
- if (areas[i].isr_bit == id) {
- areas[i].name = NULL;
- return;
- }
-}
-
#ifdef CONFIG_ARCH_R8A7779
static int rcar_sysc_power_cpu(unsigned int idx, bool on)
{
@@ -473,10 +452,10 @@ static int rcar_sysc_power_cpu(unsigned int idx, bool on)
continue;
pd = to_rcar_pd(genpd);
- if (!(pd->flags & PD_CPU) || pd->ch.chan_bit != idx)
+ if (!(pd->flags & PD_CPU) || pd->chan_bit != idx)
continue;
- return rcar_sysc_power(&pd->ch, on);
+ return rcar_sysc_power(pd, on);
}
return -ENOENT;
diff --git a/drivers/pmdomain/renesas/rcar-sysc.h b/drivers/pmdomain/renesas/rcar-sysc.h
index 266c599a0a9b..07ffce310686 100644
--- a/drivers/pmdomain/renesas/rcar-sysc.h
+++ b/drivers/pmdomain/renesas/rcar-sysc.h
@@ -16,6 +16,7 @@
#define PD_CPU BIT(0) /* Area contains main CPU core */
#define PD_SCU BIT(1) /* Area contains SCU and L2 cache */
#define PD_NO_CR BIT(2) /* Area lacks PWR{ON,OFF}CR registers */
+#define PD_OFF_DELAY BIT(3) /* Area is subject to power-off delay quirk */
#define PD_CPU_CR PD_CPU /* CPU area has CR (R-Car H1) */
#define PD_CPU_NOCR PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
@@ -71,12 +72,4 @@ extern const struct rcar_sysc_info r8a77980_sysc_info;
extern const struct rcar_sysc_info r8a77990_sysc_info;
extern const struct rcar_sysc_info r8a77995_sysc_info;
-
- /*
- * Helpers for fixing up power area tables depending on SoC revision
- */
-
-extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
- unsigned int num_areas, u8 id);
-
#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */
diff --git a/drivers/pmdomain/renesas/rmobile-sysc.c b/drivers/pmdomain/renesas/rmobile-sysc.c
index 0b77f37787d5..5848e79aa438 100644
--- a/drivers/pmdomain/renesas/rmobile-sysc.c
+++ b/drivers/pmdomain/renesas/rmobile-sysc.c
@@ -268,9 +268,7 @@ static int __init rmobile_add_pm_domains(void __iomem *base,
struct device_node *parent,
struct generic_pm_domain *genpd_parent)
{
- struct device_node *np;
-
- for_each_child_of_node(parent, np) {
+ for_each_child_of_node_scoped(parent, np) {
struct rmobile_pm_domain *pd;
u32 idx = ~0;
@@ -279,10 +277,8 @@ static int __init rmobile_add_pm_domains(void __iomem *base,
}
pd = kzalloc(sizeof(*pd), GFP_KERNEL);
- if (!pd) {
- of_node_put(np);
+ if (!pd)
return -ENOMEM;
- }
pd->genpd.name = np->name;
pd->base = base;
generated by cgit (git 2.34.1) at 2025-08-02 05:23:39 +0000