[PATCH v2 01/16] dt-bindings: clock: at91: Split up per SoC partially

Alexander Dahl
2025-02-10T16:45:24Z

Before adding even more new indexes creating more holes in the
clk at91 drivers pmc_data->chws arrays, split this up.

This is a partial split up only for SoCs affected by upcoming changes
and by that PMC_MAIN + x hack, others could follow by the same scheme.

Binding splitup was proposed for several reasons:

1) keep the driver code simple, readable, and efficient
2) avoid accidental array index duplication
3) avoid memory waste by creating more and more unused array members.

Old values are kept to not break dts, and to maintain dt ABI.

Link: https://lore.kernel.org/linux-devicetree/20250207-jailbird-circus-bcc04ee90e05@thorsis.com/T/#u
Signed-off-by: Alexander Dahl <ada@thorsis.com>
---

Notes:
v2:
- new patch, not present in v1

.../dt-bindings/clock/microchip,sam9x60-pmc.h | 19 +++++++++++
.../dt-bindings/clock/microchip,sam9x7-pmc.h | 25 +++++++++++++++
.../clock/microchip,sama7d65-pmc.h | 32 +++++++++++++++++++
.../dt-bindings/clock/microchip,sama7g5-pmc.h | 24 ++++++++++++++
4 files changed, 100 insertions(+)
create mode 100644 include/dt-bindings/clock/microchip,sam9x60-pmc.h
create mode 100644 include/dt-bindings/clock/microchip,sam9x7-pmc.h
create mode 100644 include/dt-bindings/clock/microchip,sama7d65-pmc.h
create mode 100644 include/dt-bindings/clock/microchip,sama7g5-pmc.h

diff --git a/include/dt-bindings/clock/microchip,sam9x60-pmc.h b/include/dt-bindings/clock/microchip,sam9x60-pmc.h
new file mode 100644
index 0000000000000..e01e867e8c4da
--- /dev/null
+++ b/include/dt-bindings/clock/microchip,sam9x60-pmc.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * The constants defined in this header are being used in dts and in
+ * at91 sam9x60 clock driver.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MICROCHIP_SAM9X60_PMC_H
+#define _DT_BINDINGS_CLOCK_MICROCHIP_SAM9X60_PMC_H
+
+#include <dt-bindings/clock/at91.h>
+
+/* old from before bindings splitup */
+#define SAM9X60_PMC_MCK PMC_MCK /* 1 */
+#define SAM9X60_PMC_UTMI PMC_UTMI /* 2 */
+#define SAM9X60_PMC_MAIN PMC_MAIN /* 3 */
+
+#define SAM9X60_PMC_PLLACK PMC_PLLACK /* 7 */
+
+#endif
diff --git a/include/dt-bindings/clock/microchip,sam9x7-pmc.h b/include/dt-bindings/clock/microchip,sam9x7-pmc.h
new file mode 100644
index 0000000000000..2df1ff97a5b18
--- /dev/null
+++ b/include/dt-bindings/clock/microchip,sam9x7-pmc.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * The constants defined in this header are being used in dts and in
+ * at91 sam9x7 clock driver.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MICROCHIP_SAM9X7_PMC_H
+#define _DT_BINDINGS_CLOCK_MICROCHIP_SAM9X7_PMC_H
+
+#include <dt-bindings/clock/at91.h>
+
+/* old from before bindings splitup */
+#define SAM9X7_PMC_MCK PMC_MCK /* 1 */
+#define SAM9X7_PMC_UTMI PMC_UTMI /* 2 */
+#define SAM9X7_PMC_MAIN PMC_MAIN /* 3 */
+
+#define SAM9X7_PMC_PLLACK PMC_PLLACK /* 7 */
+
+#define SAM9X7_PMC_AUDIOPMCPLL PMC_AUDIOPMCPLL /* 9 */
+#define SAM9X7_PMC_AUDIOIOPLL PMC_AUDIOIOPLL /* 10 */
+
+#define SAM9X7_PMC_PLLADIV2 PMC_PLLADIV2 /* 14 */
+#define SAM9X7_PMC_LVDSPLL PMC_LVDSPLL /* 15 */
+
+#endif
diff --git a/include/dt-bindings/clock/microchip,sama7d65-pmc.h b/include/dt-bindings/clock/microchip,sama7d65-pmc.h
new file mode 100644
index 0000000000000..f5be643be9b36
--- /dev/null
+++ b/include/dt-bindings/clock/microchip,sama7d65-pmc.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * The constants defined in this header are being used in dts and in
+ * at91 sama7d65 clock driver.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MICROCHIP_SAMA7D65_PMC_H
+#define _DT_BINDINGS_CLOCK_MICROCHIP_SAMA7D65_PMC_H
+
+#include <dt-bindings/clock/at91.h>
+
+/* old from before bindings splitup */
+#define SAMA7D65_PMC_MCK0 PMC_MCK /* 1 */
+#define SAMA7D65_PMC_UTMI PMC_UTMI /* 2 */
+#define SAMA7D65_PMC_MAIN PMC_MAIN /* 3 */
+#define SAMA7D65_PMC_CPUPLL PMC_CPUPLL /* 4 */
+#define SAMA7D65_PMC_SYSPLL PMC_SYSPLL /* 5 */
+
+#define SAMA7D65_PMC_BAUDPLL PMC_BAUDPLL /* 8 */
+#define SAMA7D65_PMC_AUDIOPMCPLL PMC_AUDIOPMCPLL /* 9 */
+#define SAMA7D65_PMC_AUDIOIOPLL PMC_AUDIOIOPLL /* 10 */
+#define SAMA7D65_PMC_ETHPLL PMC_ETHPLL /* 11 */
+
+#define SAMA7D65_PMC_MCK1 PMC_MCK1 /* 13 */
+
+#define SAMA7D65_PMC_LVDSPLL PMC_LVDSPLL /* 15 */
+#define SAMA7D65_PMC_MCK3 PMC_MCK3 /* 16 */
+#define SAMA7D65_PMC_MCK5 PMC_MCK5 /* 17 */
+
+#define SAMA7D65_PMC_INDEX_MAX 25
+
+#endif
diff --git a/include/dt-bindings/clock/microchip,sama7g5-pmc.h b/include/dt-bindings/clock/microchip,sama7g5-pmc.h
new file mode 100644
index 0000000000000..ad69ccdf9dc78
--- /dev/null
+++ b/include/dt-bindings/clock/microchip,sama7g5-pmc.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * The constants defined in this header are being used in dts and in
+ * at91 sama7g5 clock driver.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MICROCHIP_SAMA7G5_PMC_H
+#define _DT_BINDINGS_CLOCK_MICROCHIP_SAMA7G5_PMC_H
+
+#include <dt-bindings/clock/at91.h>
+
+/* old from before bindings splitup */
+#define SAMA7G5_PMC_MCK0 PMC_MCK /* 1 */
+#define SAMA7G5_PMC_UTMI PMC_UTMI /* 2 */
+#define SAMA7G5_PMC_MAIN PMC_MAIN /* 3 */
+#define SAMA7G5_PMC_CPUPLL PMC_CPUPLL /* 4 */
+#define SAMA7G5_PMC_SYSPLL PMC_SYSPLL /* 5 */
+
+#define SAMA7G5_PMC_AUDIOPMCPLL PMC_AUDIOPMCPLL /* 9 */
+#define SAMA7G5_PMC_AUDIOIOPLL PMC_AUDIOIOPLL /* 10 */
+
+#define SAMA7G5_PMC_MCK1 PMC_MCK1 /* 13 */
+
+#endif
--
2.39.5