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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /drivers/soc/gemini
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'drivers/soc/gemini')
-rw-r--r--drivers/soc/gemini/Makefile2
-rw-r--r--drivers/soc/gemini/soc-gemini.c71
2 files changed, 73 insertions, 0 deletions
diff --git a/drivers/soc/gemini/Makefile b/drivers/soc/gemini/Makefile
new file mode 100644
index 000000000..8cbd1e45d
--- /dev/null
+++ b/drivers/soc/gemini/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-y += soc-gemini.o
diff --git a/drivers/soc/gemini/soc-gemini.c b/drivers/soc/gemini/soc-gemini.c
new file mode 100644
index 000000000..642b96c91
--- /dev/null
+++ b/drivers/soc/gemini/soc-gemini.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 Linaro Ltd.
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/of.h>
+
+#define GLOBAL_WORD_ID 0x00
+#define GEMINI_GLOBAL_ARB1_CTRL 0x2c
+#define GEMINI_ARB1_BURST_MASK GENMASK(21, 16)
+#define GEMINI_ARB1_BURST_SHIFT 16
+/* These all define the priority on the BUS2 backplane */
+#define GEMINI_ARB1_PRIO_MASK GENMASK(9, 0)
+#define GEMINI_ARB1_DMAC_HIGH_PRIO BIT(0)
+#define GEMINI_ARB1_IDE_HIGH_PRIO BIT(1)
+#define GEMINI_ARB1_RAID_HIGH_PRIO BIT(2)
+#define GEMINI_ARB1_SECURITY_HIGH_PRIO BIT(3)
+#define GEMINI_ARB1_GMAC0_HIGH_PRIO BIT(4)
+#define GEMINI_ARB1_GMAC1_HIGH_PRIO BIT(5)
+#define GEMINI_ARB1_USB0_HIGH_PRIO BIT(6)
+#define GEMINI_ARB1_USB1_HIGH_PRIO BIT(7)
+#define GEMINI_ARB1_PCI_HIGH_PRIO BIT(8)
+#define GEMINI_ARB1_TVE_HIGH_PRIO BIT(9)
+
+#define GEMINI_DEFAULT_BURST_SIZE 0x20
+#define GEMINI_DEFAULT_PRIO (GEMINI_ARB1_GMAC0_HIGH_PRIO | \
+ GEMINI_ARB1_GMAC1_HIGH_PRIO)
+
+static int __init gemini_soc_init(void)
+{
+ struct regmap *map;
+ u32 rev;
+ u32 val;
+ int ret;
+
+ /* Multiplatform guard, only proceed on Gemini */
+ if (!of_machine_is_compatible("cortina,gemini"))
+ return 0;
+
+ map = syscon_regmap_lookup_by_compatible("cortina,gemini-syscon");
+ if (IS_ERR(map))
+ return PTR_ERR(map);
+ ret = regmap_read(map, GLOBAL_WORD_ID, &rev);
+ if (ret)
+ return ret;
+
+ val = (GEMINI_DEFAULT_BURST_SIZE << GEMINI_ARB1_BURST_SHIFT) |
+ GEMINI_DEFAULT_PRIO;
+
+ /* Set up system arbitration */
+ regmap_update_bits(map,
+ GEMINI_GLOBAL_ARB1_CTRL,
+ GEMINI_ARB1_BURST_MASK | GEMINI_ARB1_PRIO_MASK,
+ val);
+
+ pr_info("Gemini SoC %04x revision %02x, set arbitration %08x\n",
+ rev >> 8, rev & 0xff, val);
+
+ return 0;
+}
+subsys_initcall(gemini_soc_init);