From: Yu-Chun Lin <eleanor.lin@realtek.com>
To: <p.zabel@pengutronix.de>, <robh@kernel.org>, <krzk+dt@kernel.org>,
<conor+dt@kernel.org>, <cylee12@realtek.com>
Cc: <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<james.tai@realtek.com>, <cy.huang@realtek.com>,
<stanley_chang@realtek.com>, <eleanor.lin@realtek.com>
Subject: [PATCH v16 3/3] reset: realtek: Add RTD1625 reset controller driver
Date: Thu, 12 Nov 2026 13:31:28 +0800 [thread overview]
Message-ID: <20261112053128.561149-4-eleanor.lin@realtek.com> (raw)
In-Reply-To: <20261112053128.561149-1-eleanor.lin@realtek.com>
From: Cheng-Yu Lee <cylee12@realtek.com>
Add support for the CRT (Clock, Reset, and Test) and ISO (Isolation)domain
reset controller on the Realtek RTD1625 SoC.
The reset controller shares the same register space with the CRT and ISO
clock controller. To handle this shared register space, the reset driver is
implemented as an auxiliary driver. It will be instantiated and probed via
the auxiliary bus by the RTD1625-CRT and RTD1625-ISO clock controller
driver.
Signed-off-by: Cheng-Yu Lee <cylee12@realtek.com>
Co-developed-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
---
drivers/reset/realtek/Kconfig | 11 ++
drivers/reset/realtek/Makefile | 1 +
drivers/reset/realtek/reset-rtd1625.c | 262 ++++++++++++++++++++++++++
3 files changed, 274 insertions(+)
create mode 100644 drivers/reset/realtek/reset-rtd1625.c
diff --git a/drivers/reset/realtek/Kconfig b/drivers/reset/realtek/Kconfig
index 5ddf8e5c09c7..38591b6a70b3 100644
--- a/drivers/reset/realtek/Kconfig
+++ b/drivers/reset/realtek/Kconfig
@@ -6,3 +6,14 @@ config RESET_RTK_COMMON
Realtek SoCs. It provides shared reset control operations
(assert, deassert, status) that other Realtek-specific reset
drivers can use.
+
+config RESET_RTD1625
+ tristate "RTD1625 Reset Controller"
+ depends on ARCH_REALTEK || COMPILE_TEST
+ select RESET_RTK_COMMON
+ select AUXILIARY_BUS
+ help
+ This enables the reset controller driver for Realtek RTD1625 SoC.
+ The driver controls reset lines for various peripherals including
+ PCIe, SATA, HDMI, display, video encoder/decoder, USB, SD, audio,
+ and other subsystems.
diff --git a/drivers/reset/realtek/Makefile b/drivers/reset/realtek/Makefile
index 6d68e41748bf..993acd1e2d14 100644
--- a/drivers/reset/realtek/Makefile
+++ b/drivers/reset/realtek/Makefile
@@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_RESET_RTK_COMMON) += reset-rtk-common.o
+obj-$(CONFIG_RESET_RTD1625) += reset-rtd1625.o
diff --git a/drivers/reset/realtek/reset-rtd1625.c b/drivers/reset/realtek/reset-rtd1625.c
new file mode 100644
index 000000000000..061634e74b5f
--- /dev/null
+++ b/drivers/reset/realtek/reset-rtd1625.c
@@ -0,0 +1,262 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2026 Realtek Semiconductor Corporation
+ */
+
+#include <dt-bindings/reset/realtek,rtd1625.h>
+#include <linux/auxiliary_bus.h>
+#include <linux/array_size.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include "reset-rtk-common.h"
+
+struct rtd1625_reset_info {
+ const struct rtk_reset_desc *descs;
+ unsigned int nr_resets;
+};
+
+static const struct rtk_reset_desc rtd1625_crt_reset_descs[] = {
+ /* Bank 0: offset 0x0 */
+ [RTD1625_CRT_RSTN_MISC] = { .ofs = 0x0, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DIP] = { .ofs = 0x0, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_GSPI] = { .ofs = 0x0, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SDS] = { .ofs = 0x0, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SDS_REG] = { .ofs = 0x0, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SDS_PHY] = { .ofs = 0x0, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_GPU2D] = { .ofs = 0x0, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DC_PHY] = { .ofs = 0x0, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DCPHY_CRT] = { .ofs = 0x0, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_LSADC] = { .ofs = 0x0, .bit = 26, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SE] = { .ofs = 0x0, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DLA] = { .ofs = 0x0, .bit = 30, .write_en = 1 },
+ /* Bank 1: offset 0x4 */
+ [RTD1625_CRT_RSTN_JPEG] = { .ofs = 0x4, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SD] = { .ofs = 0x4, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SDIO] = { .ofs = 0x4, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCR_CNT] = { .ofs = 0x4, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_STITCH] = { .ofs = 0x4, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_PHY] = { .ofs = 0x4, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0] = { .ofs = 0x4, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_CORE] = { .ofs = 0x4, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_POWER] = { .ofs = 0x4, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_NONSTICH] = { .ofs = 0x4, .bit = 20, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_PHY_MDIO] = { .ofs = 0x4, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE0_SGMII_MDIO] = { .ofs = 0x4, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VO2] = { .ofs = 0x4, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MISC_SC0] = { .ofs = 0x4, .bit = 30, .write_en = 1 },
+ /* Bank 2: offset 0x8 */
+ [RTD1625_CRT_RSTN_MD] = { .ofs = 0x8, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_LVDS1] = { .ofs = 0x8, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_LVDS2] = { .ofs = 0x8, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MISC_SC1] = { .ofs = 0x8, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_I2C_3] = { .ofs = 0x8, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_FAN] = { .ofs = 0x8, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_TVE] = { .ofs = 0x8, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_AIO] = { .ofs = 0x8, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VO] = { .ofs = 0x8, .bit = 20, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MIPI_CSI] = { .ofs = 0x8, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HDMIRX] = { .ofs = 0x8, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HDMIRX_WRAP] = { .ofs = 0x8, .bit = 26, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HDMI] = { .ofs = 0x8, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DISP] = { .ofs = 0x8, .bit = 30, .write_en = 1 },
+ /* Bank 3: offset 0xc */
+ [RTD1625_CRT_RSTN_SATA_PHY_POW1] = { .ofs = 0xc, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_PHY_POW0] = { .ofs = 0xc, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_MDIO1] = { .ofs = 0xc, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_MDIO0] = { .ofs = 0xc, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_WRAP] = { .ofs = 0xc, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_MAC_P1] = { .ofs = 0xc, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_MAC_P0] = { .ofs = 0xc, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SATA_MAC_COM] = { .ofs = 0xc, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1_STITCH] = { .ofs = 0xc, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1_PHY] = { .ofs = 0xc, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1] = { .ofs = 0xc, .bit = 20, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1_CORE] = { .ofs = 0xc, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1_POWER] = { .ofs = 0xc, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1_NONSTICH] = { .ofs = 0xc, .bit = 26, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE1_PHY_MDIO] = { .ofs = 0xc, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HDMITOP] = { .ofs = 0xc, .bit = 30, .write_en = 1 },
+ /* Bank 4: offset 0x68 */
+ [RTD1625_CRT_RSTN_I2C_4] = { .ofs = 0x68, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_I2C_5] = { .ofs = 0x68, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_TSIO] = { .ofs = 0x68, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VI] = { .ofs = 0x68, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_EDP] = { .ofs = 0x68, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VE1_MMU] = { .ofs = 0x68, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VE1_MMU_FUNC] = { .ofs = 0x68, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HSE_MMU] = { .ofs = 0x68, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HSE_MMU_FUNC] = { .ofs = 0x68, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MDLM2M] = { .ofs = 0x68, .bit = 20, .write_en = 1 },
+ [RTD1625_CRT_RSTN_ISO_GSPI] = { .ofs = 0x68, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SOFT_NPU] = { .ofs = 0x68, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SPI2EMMC] = { .ofs = 0x68, .bit = 26, .write_en = 1 },
+ [RTD1625_CRT_RSTN_EARC] = { .ofs = 0x68, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VE1] = { .ofs = 0x68, .bit = 30, .write_en = 1 },
+ /* Bank 5: offset 0x90 */
+ [RTD1625_CRT_RSTN_PCIE2_STITCH] = { .ofs = 0x90, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE2_PHY] = { .ofs = 0x90, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE2] = { .ofs = 0x90, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE2_CORE] = { .ofs = 0x90, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE2_POWER] = { .ofs = 0x90, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE2_NONSTICH] = { .ofs = 0x90, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_PCIE2_PHY_MDIO] = { .ofs = 0x90, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DCPHY_UMCTL2] = { .ofs = 0x90, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MIPI_DSI] = { .ofs = 0x90, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_HIFM] = { .ofs = 0x90, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_NSRAM] = { .ofs = 0x90, .bit = 20, .write_en = 1 },
+ [RTD1625_CRT_RSTN_AUCPU0_REG] = { .ofs = 0x90, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MDL_GENPW] = { .ofs = 0x90, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MDL_CHIP] = { .ofs = 0x90, .bit = 26, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MDL_IP] = { .ofs = 0x90, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_TEST_MUX] = { .ofs = 0x90, .bit = 30, .write_en = 1 },
+ /* Bank 6: offset 0xb8 */
+ [RTD1625_CRT_RSTN_ISO_BIST] = { .ofs = 0xb8, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MAIN_BIST] = { .ofs = 0xb8, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_MAIN2_BIST] = { .ofs = 0xb8, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VE1_BIST] = { .ofs = 0xb8, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VE2_BIST] = { .ofs = 0xb8, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DCPHY_BIST] = { .ofs = 0xb8, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_GPU_BIST] = { .ofs = 0xb8, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DISP_BIST] = { .ofs = 0xb8, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_NPU_BIST] = { .ofs = 0xb8, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_CAS_BIST] = { .ofs = 0xb8, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_VE4_BIST] = { .ofs = 0xb8, .bit = 20, .write_en = 1 },
+ /* Bank 7: offset 0x454 (DUMMY0, no write_en) */
+ [RTD1625_CRT_RSTN_EMMC] = { .ofs = 0x454, .bit = 0 },
+ /* Bank 8: offset 0x458 (DUMMY1, no write_en) */
+ [RTD1625_CRT_RSTN_GPU] = { .ofs = 0x458, .bit = 0 },
+ /* Bank 9: offset 0x464 (DUMMY4, no write_en) */
+ [RTD1625_CRT_RSTN_VE2] = { .ofs = 0x464, .bit = 0 },
+ /* Bank 10: offset 0x880 */
+ [RTD1625_CRT_RSTN_UR1] = { .ofs = 0x880, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR2] = { .ofs = 0x880, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR3] = { .ofs = 0x880, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR4] = { .ofs = 0x880, .bit = 6, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR5] = { .ofs = 0x880, .bit = 8, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR6] = { .ofs = 0x880, .bit = 10, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR7] = { .ofs = 0x880, .bit = 12, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR8] = { .ofs = 0x880, .bit = 14, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR9] = { .ofs = 0x880, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_UR_TOP] = { .ofs = 0x880, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_I2C_7] = { .ofs = 0x880, .bit = 28, .write_en = 1 },
+ [RTD1625_CRT_RSTN_I2C_6] = { .ofs = 0x880, .bit = 30, .write_en = 1 },
+ /* Bank 11: offset 0x890 */
+ [RTD1625_CRT_RSTN_SPI0] = { .ofs = 0x890, .bit = 0, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SPI1] = { .ofs = 0x890, .bit = 2, .write_en = 1 },
+ [RTD1625_CRT_RSTN_SPI2] = { .ofs = 0x890, .bit = 4, .write_en = 1 },
+ [RTD1625_CRT_RSTN_LSADC0] = { .ofs = 0x890, .bit = 16, .write_en = 1 },
+ [RTD1625_CRT_RSTN_LSADC1] = { .ofs = 0x890, .bit = 18, .write_en = 1 },
+ [RTD1625_CRT_RSTN_ISOMIS_DMA] = { .ofs = 0x890, .bit = 20, .write_en = 1 },
+ [RTD1625_CRT_RSTN_AUDIO_ADC] = { .ofs = 0x890, .bit = 22, .write_en = 1 },
+ [RTD1625_CRT_RSTN_DPTX] = { .ofs = 0x890, .bit = 24, .write_en = 1 },
+ [RTD1625_CRT_RSTN_AUCPU1_REG] = { .ofs = 0x890, .bit = 26, .write_en = 1 },
+ [RTD1625_CRT_RSTN_EDPTX] = { .ofs = 0x890, .bit = 28, .write_en = 1 },
+};
+
+static const struct rtd1625_reset_info rtd1625_crt_info = {
+ .descs = rtd1625_crt_reset_descs,
+ .nr_resets = ARRAY_SIZE(rtd1625_crt_reset_descs),
+};
+
+static const struct rtk_reset_desc rtd1625_iso_reset_descs[] = {
+ [RTD1625_ISO_RSTN_VFD] = { .ofs = 0x88, .bit = 0 },
+ [RTD1625_ISO_RSTN_CEC0] = { .ofs = 0x88, .bit = 2 },
+ [RTD1625_ISO_RSTN_CEC1] = { .ofs = 0x88, .bit = 3 },
+ [RTD1625_ISO_RSTN_CBUSTX] = { .ofs = 0x88, .bit = 5 },
+ [RTD1625_ISO_RSTN_CBUSRX] = { .ofs = 0x88, .bit = 6 },
+ [RTD1625_ISO_RSTN_USB3_PHY2_XTAL_POW] = { .ofs = 0x88, .bit = 7 },
+ [RTD1625_ISO_RSTN_UR0] = { .ofs = 0x88, .bit = 8 },
+ [RTD1625_ISO_RSTN_GMAC] = { .ofs = 0x88, .bit = 9 },
+ [RTD1625_ISO_RSTN_GPHY] = { .ofs = 0x88, .bit = 10 },
+ [RTD1625_ISO_RSTN_I2C_0] = { .ofs = 0x88, .bit = 11 },
+ [RTD1625_ISO_RSTN_I2C_1] = { .ofs = 0x88, .bit = 12 },
+ [RTD1625_ISO_RSTN_CBUS] = { .ofs = 0x88, .bit = 13 },
+ [RTD1625_ISO_RSTN_USB_DRD] = { .ofs = 0x88, .bit = 14 },
+ [RTD1625_ISO_RSTN_USB_HOST] = { .ofs = 0x88, .bit = 15 },
+ [RTD1625_ISO_RSTN_USB_PHY_0] = { .ofs = 0x88, .bit = 16 },
+ [RTD1625_ISO_RSTN_USB_PHY_1] = { .ofs = 0x88, .bit = 17 },
+ [RTD1625_ISO_RSTN_USB_PHY_2] = { .ofs = 0x88, .bit = 18 },
+ [RTD1625_ISO_RSTN_USB] = { .ofs = 0x88, .bit = 19 },
+ [RTD1625_ISO_RSTN_TYPE_C] = { .ofs = 0x88, .bit = 20 },
+ [RTD1625_ISO_RSTN_USB_U3_HOST] = { .ofs = 0x88, .bit = 21 },
+ [RTD1625_ISO_RSTN_USB3_PHY0_POW] = { .ofs = 0x88, .bit = 22 },
+ [RTD1625_ISO_RSTN_USB3_P0_MDIO] = { .ofs = 0x88, .bit = 23 },
+ [RTD1625_ISO_RSTN_USB3_PHY1_POW] = { .ofs = 0x88, .bit = 24 },
+ [RTD1625_ISO_RSTN_USB3_P1_MDIO] = { .ofs = 0x88, .bit = 25 },
+ [RTD1625_ISO_RSTN_VTC] = { .ofs = 0x88, .bit = 26 },
+ [RTD1625_ISO_RSTN_USB3_PHY2_POW] = { .ofs = 0x88, .bit = 27 },
+ [RTD1625_ISO_RSTN_USB3_P2_MDIO] = { .ofs = 0x88, .bit = 28 },
+ [RTD1625_ISO_RSTN_USB_PHY_3] = { .ofs = 0x88, .bit = 29 },
+ [RTD1625_ISO_RSTN_USB_PHY_4] = { .ofs = 0x88, .bit = 30 },
+};
+
+static const struct rtd1625_reset_info rtd1625_iso_info = {
+ .descs = rtd1625_iso_reset_descs,
+ .nr_resets = ARRAY_SIZE(rtd1625_iso_reset_descs),
+};
+
+static const struct rtk_reset_desc rtd1625_iso_s_reset_descs[] = {
+ [RTD1625_ISO_S_RSTN_ISOM_MIS] = { .ofs = 0x310, .bit = 0, .write_en = 1 },
+ [RTD1625_ISO_S_RSTN_GPIOM] = { .ofs = 0x310, .bit = 2, .write_en = 1 },
+ [RTD1625_ISO_S_RSTN_TIMER7] = { .ofs = 0x310, .bit = 4, .write_en = 1 },
+ [RTD1625_ISO_S_RSTN_IRDA] = { .ofs = 0x310, .bit = 6, .write_en = 1 },
+ [RTD1625_ISO_S_RSTN_UR10] = { .ofs = 0x310, .bit = 8, .write_en = 1 },
+};
+
+static const struct rtd1625_reset_info rtd1625_iso_s_info = {
+ .descs = rtd1625_iso_s_reset_descs,
+ .nr_resets = ARRAY_SIZE(rtd1625_iso_s_reset_descs),
+};
+
+static int rtd1625_reset_probe(struct auxiliary_device *adev,
+ const struct auxiliary_device_id *id)
+{
+ const struct rtd1625_reset_info *info;
+ struct device *dev = &adev->dev;
+ struct rtk_reset_data *data;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ info = (const struct rtd1625_reset_info *)id->driver_data;
+
+ data->descs = info->descs;
+ data->regmap = dev_get_platdata(dev);
+ data->rcdev.owner = THIS_MODULE;
+ data->rcdev.nr_resets = info->nr_resets;
+ data->rcdev.ops = &rtk_reset_ops;
+ data->rcdev.dev = dev;
+ data->rcdev.of_node = dev->of_node;
+
+ return devm_reset_controller_register(dev, &data->rcdev);
+}
+
+static const struct auxiliary_device_id rtd1625_reset_ids[] = {
+ {
+ .name = "clk_rtk.rtd1625_crt_rst",
+ .driver_data = (kernel_ulong_t)&rtd1625_crt_info },
+ {
+ .name = "clk_rtk.rtd1625_iso_rst",
+ .driver_data = (kernel_ulong_t)&rtd1625_iso_info },
+ {
+ .name = "clk_rtk.rtd1625_iso_s_rst",
+ .driver_data = (kernel_ulong_t)&rtd1625_iso_s_info },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(auxiliary, rtd1625_reset_ids);
+
+static struct auxiliary_driver rtd1625_reset_driver = {
+ .probe = rtd1625_reset_probe,
+ .id_table = rtd1625_reset_ids,
+ .driver = {
+ .name = "rtd1625-reset",
+ },
+};
+module_auxiliary_driver(rtd1625_reset_driver);
+
+MODULE_DESCRIPTION("Realtek RTD1625 Reset Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("REALTEK_RESET");
--
2.43.0
next prev parent reply other threads:[~2026-11-12 5:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-12 5:31 [PATCH v16 0/3] reset: realtek: Add RTD1625 reset support Yu-Chun Lin
2026-11-12 5:31 ` [PATCH v16 1/3] dt-bindings: reset: Add Realtek RTD1625 reset IDs Yu-Chun Lin
2026-11-12 9:08 ` Krzysztof Kozlowski
2026-11-12 9:10 ` Krzysztof Kozlowski
2026-11-12 5:31 ` [PATCH v16 2/3] reset: Add Realtek basic reset support Yu-Chun Lin
2026-11-12 5:31 ` Yu-Chun Lin [this message]
2026-11-12 9:41 ` [PATCH v16 0/3] reset: realtek: Add RTD1625 " Philipp Zabel
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