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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/phy/sunplus | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'drivers/phy/sunplus')
| -rw-r--r-- | drivers/phy/sunplus/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/phy/sunplus/Makefile | 2 | ||||
| -rw-r--r-- | drivers/phy/sunplus/phy-sunplus-usb2.c | 299 |
3 files changed, 313 insertions, 0 deletions
diff --git a/drivers/phy/sunplus/Kconfig b/drivers/phy/sunplus/Kconfig new file mode 100644 index 000000000..3bd3cfb53 --- /dev/null +++ b/drivers/phy/sunplus/Kconfig @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0-only + +config PHY_SUNPLUS_USB + tristate "Sunplus SP7021 USB 2.0 PHY driver" + depends on OF && (SOC_SP7021 || COMPILE_TEST) + select GENERIC_PHY + help + Enable this to support the USB 2.0 PHY on Sunplus SP7021 + SoC. The USB 2.0 PHY controller supports battery charger + and synchronous signals, various power down modes including + operating, partial and suspend modes, and high-speed, + full-speed and low-speed data transfer. diff --git a/drivers/phy/sunplus/Makefile b/drivers/phy/sunplus/Makefile new file mode 100644 index 000000000..71754d5cb --- /dev/null +++ b/drivers/phy/sunplus/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_PHY_SUNPLUS_USB) += phy-sunplus-usb2.o diff --git a/drivers/phy/sunplus/phy-sunplus-usb2.c b/drivers/phy/sunplus/phy-sunplus-usb2.c new file mode 100644 index 000000000..637a5fbae --- /dev/null +++ b/drivers/phy/sunplus/phy-sunplus-usb2.c @@ -0,0 +1,299 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Sunplus SP7021 USB 2.0 phy driver + * + * Copyright (C) 2022 Sunplus Technology Inc., All rights reserved. + * + * Note 1 : non-posted write command for the registers accesses of + * Sunplus SP7021. + * + */ + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/nvmem-consumer.h> +#include <linux/of.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/reset.h> + +#define HIGH_MASK_BITS GENMASK(31, 16) +#define LOW_MASK_BITS GENMASK(15, 0) +#define OTP_DISC_LEVEL_DEFAULT 0xd + +/* GROUP UPHY */ +#define CONFIG1 0x4 +#define J_HS_TX_PWRSAV BIT(5) +#define CONFIG3 0xc +#define J_FORCE_DISC_ON BIT(5) +#define J_DEBUG_CTRL_ADDR_MACRO BIT(0) +#define CONFIG7 0x1c +#define J_DISC 0X1f +#define CONFIG9 0x24 +#define J_ECO_PATH BIT(6) +#define CONFIG16 0x40 +#define J_TBCWAIT_MASK GENMASK(6, 5) +#define J_TBCWAIT_1P1_MS FIELD_PREP(J_TBCWAIT_MASK, 0) +#define J_TVDM_SRC_DIS_MASK GENMASK(4, 3) +#define J_TVDM_SRC_DIS_8P2_MS FIELD_PREP(J_TVDM_SRC_DIS_MASK, 3) +#define J_TVDM_SRC_EN_MASK GENMASK(2, 1) +#define J_TVDM_SRC_EN_1P6_MS FIELD_PREP(J_TVDM_SRC_EN_MASK, 0) +#define J_BC_EN BIT(0) +#define CONFIG17 0x44 +#define IBG_TRIM0_MASK GENMASK(7, 5) +#define IBG_TRIM0_SSLVHT FIELD_PREP(IBG_TRIM0_MASK, 4) +#define J_VDATREE_TRIM_MASK GENMASK(4, 1) +#define J_VDATREE_TRIM_DEFAULT FIELD_PREP(J_VDATREE_TRIM_MASK, 9) +#define CONFIG23 0x5c +#define PROB_MASK GENMASK(5, 3) +#define PROB FIELD_PREP(PROB_MASK, 7) + +/* GROUP MOON4 */ +#define UPHY_CONTROL0 0x0 +#define UPHY_CONTROL1 0x4 +#define UPHY_CONTROL2 0x8 +#define MO1_UPHY_RX_CLK_SEL BIT(6) +#define MASK_MO1_UPHY_RX_CLK_SEL BIT(6 + 16) +#define UPHY_CONTROL3 0xc +#define MO1_UPHY_PLL_POWER_OFF_SEL BIT(7) +#define MASK_MO1_UPHY_PLL_POWER_OFF_SEL BIT(7 + 16) +#define MO1_UPHY_PLL_POWER_OFF BIT(3) +#define MASK_UPHY_PLL_POWER_OFF BIT(3 + 16) + +struct sp_usbphy { + struct device *dev; + struct resource *phy_res_mem; + struct resource *moon4_res_mem; + struct reset_control *rstc; + struct clk *phy_clk; + void __iomem *phy_regs; + void __iomem *moon4_regs; + u32 disc_vol_addr_off; +}; + +static int update_disc_vol(struct sp_usbphy *usbphy) +{ + struct nvmem_cell *cell; + char *disc_name = "disc_vol"; + ssize_t otp_l = 0; + char *otp_v; + u32 val, set; + + cell = nvmem_cell_get(usbphy->dev, disc_name); + if (IS_ERR_OR_NULL(cell)) { + if (PTR_ERR(cell) == -EPROBE_DEFER) + return -EPROBE_DEFER; + } + + otp_v = nvmem_cell_read(cell, &otp_l); + nvmem_cell_put(cell); + + if (!IS_ERR(otp_v)) { + set = *(otp_v + 1); + set = (set << (sizeof(char) * 8)) | *otp_v; + set = (set >> usbphy->disc_vol_addr_off) & J_DISC; + } + + if (IS_ERR(otp_v) || set == 0) + set = OTP_DISC_LEVEL_DEFAULT; + + val = readl(usbphy->phy_regs + CONFIG7); + val = (val & ~J_DISC) | set; + writel(val, usbphy->phy_regs + CONFIG7); + + return 0; +} + +static int sp_uphy_init(struct phy *phy) +{ + struct sp_usbphy *usbphy = phy_get_drvdata(phy); + u32 val; + int ret; + + ret = clk_prepare_enable(usbphy->phy_clk); + if (ret) + goto err_clk; + + ret = reset_control_deassert(usbphy->rstc); + if (ret) + goto err_reset; + + /* Default value modification */ + writel(HIGH_MASK_BITS | 0x4002, usbphy->moon4_regs + UPHY_CONTROL0); + writel(HIGH_MASK_BITS | 0x8747, usbphy->moon4_regs + UPHY_CONTROL1); + + /* disconnect voltage */ + ret = update_disc_vol(usbphy); + if (ret < 0) + return ret; + + /* board uphy 0 internal register modification for tid certification */ + val = readl(usbphy->phy_regs + CONFIG9); + val &= ~(J_ECO_PATH); + writel(val, usbphy->phy_regs + CONFIG9); + + val = readl(usbphy->phy_regs + CONFIG1); + val &= ~(J_HS_TX_PWRSAV); + writel(val, usbphy->phy_regs + CONFIG1); + + val = readl(usbphy->phy_regs + CONFIG23); + val = (val & ~PROB) | PROB; + writel(val, usbphy->phy_regs + CONFIG23); + + /* port 0 uphy clk fix */ + writel(MASK_MO1_UPHY_RX_CLK_SEL | MO1_UPHY_RX_CLK_SEL, + usbphy->moon4_regs + UPHY_CONTROL2); + + /* battery charger */ + writel(J_TBCWAIT_1P1_MS | J_TVDM_SRC_DIS_8P2_MS | J_TVDM_SRC_EN_1P6_MS | J_BC_EN, + usbphy->phy_regs + CONFIG16); + writel(IBG_TRIM0_SSLVHT | J_VDATREE_TRIM_DEFAULT, usbphy->phy_regs + CONFIG17); + + /* chirp mode */ + writel(J_FORCE_DISC_ON | J_DEBUG_CTRL_ADDR_MACRO, usbphy->phy_regs + CONFIG3); + + return 0; + +err_reset: + reset_control_assert(usbphy->rstc); +err_clk: + clk_disable_unprepare(usbphy->phy_clk); + + return ret; +} + +static int sp_uphy_power_on(struct phy *phy) +{ + struct sp_usbphy *usbphy = phy_get_drvdata(phy); + u32 pll_pwr_on, pll_pwr_off; + + /* PLL power off/on twice */ + pll_pwr_off = (readl(usbphy->moon4_regs + UPHY_CONTROL3) & ~LOW_MASK_BITS) + | MO1_UPHY_PLL_POWER_OFF_SEL | MO1_UPHY_PLL_POWER_OFF; + pll_pwr_on = (readl(usbphy->moon4_regs + UPHY_CONTROL3) & ~LOW_MASK_BITS) + | MO1_UPHY_PLL_POWER_OFF_SEL; + + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | pll_pwr_off, + usbphy->moon4_regs + UPHY_CONTROL3); + mdelay(1); + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | pll_pwr_on, + usbphy->moon4_regs + UPHY_CONTROL3); + mdelay(1); + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | pll_pwr_off, + usbphy->moon4_regs + UPHY_CONTROL3); + mdelay(1); + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | pll_pwr_on, + usbphy->moon4_regs + UPHY_CONTROL3); + mdelay(1); + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | 0x0, + usbphy->moon4_regs + UPHY_CONTROL3); + + return 0; +} + +static int sp_uphy_power_off(struct phy *phy) +{ + struct sp_usbphy *usbphy = phy_get_drvdata(phy); + u32 pll_pwr_off; + + pll_pwr_off = (readl(usbphy->moon4_regs + UPHY_CONTROL3) & ~LOW_MASK_BITS) + | MO1_UPHY_PLL_POWER_OFF_SEL | MO1_UPHY_PLL_POWER_OFF; + + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | pll_pwr_off, + usbphy->moon4_regs + UPHY_CONTROL3); + mdelay(1); + writel(MASK_MO1_UPHY_PLL_POWER_OFF_SEL | MASK_UPHY_PLL_POWER_OFF | 0x0, + usbphy->moon4_regs + UPHY_CONTROL3); + + return 0; +} + +static int sp_uphy_exit(struct phy *phy) +{ + struct sp_usbphy *usbphy = phy_get_drvdata(phy); + + reset_control_assert(usbphy->rstc); + clk_disable_unprepare(usbphy->phy_clk); + + return 0; +} + +static const struct phy_ops sp_uphy_ops = { + .init = sp_uphy_init, + .power_on = sp_uphy_power_on, + .power_off = sp_uphy_power_off, + .exit = sp_uphy_exit, +}; + +static const struct of_device_id sp_uphy_dt_ids[] = { + {.compatible = "sunplus,sp7021-usb2-phy", }, + { } +}; +MODULE_DEVICE_TABLE(of, sp_uphy_dt_ids); + +static int sp_usb_phy_probe(struct platform_device *pdev) +{ + struct sp_usbphy *usbphy; + struct phy_provider *phy_provider; + struct phy *phy; + int ret; + + usbphy = devm_kzalloc(&pdev->dev, sizeof(*usbphy), GFP_KERNEL); + if (!usbphy) + return -ENOMEM; + + usbphy->dev = &pdev->dev; + + usbphy->phy_res_mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy"); + usbphy->phy_regs = devm_ioremap_resource(&pdev->dev, usbphy->phy_res_mem); + if (IS_ERR(usbphy->phy_regs)) + return PTR_ERR(usbphy->phy_regs); + + usbphy->moon4_res_mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "moon4"); + if (!usbphy->moon4_res_mem) + return -EINVAL; + + usbphy->moon4_regs = devm_ioremap(&pdev->dev, usbphy->moon4_res_mem->start, + resource_size(usbphy->moon4_res_mem)); + if (!usbphy->moon4_regs) + return -ENOMEM; + + usbphy->phy_clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(usbphy->phy_clk)) + return PTR_ERR(usbphy->phy_clk); + + usbphy->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); + if (IS_ERR(usbphy->rstc)) + return PTR_ERR(usbphy->rstc); + + of_property_read_u32(pdev->dev.of_node, "sunplus,disc-vol-addr-off", + &usbphy->disc_vol_addr_off); + + phy = devm_phy_create(&pdev->dev, NULL, &sp_uphy_ops); + if (IS_ERR(phy)) { + ret = PTR_ERR(phy); + return ret; + } + + phy_set_drvdata(phy, usbphy); + phy_provider = devm_of_phy_provider_register(&pdev->dev, of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(phy_provider); +} + +static struct platform_driver sunplus_usb_phy_driver = { + .probe = sp_usb_phy_probe, + .driver = { + .name = "sunplus-usb2-phy", + .of_match_table = sp_uphy_dt_ids, + }, +}; +module_platform_driver(sunplus_usb_phy_driver); + +MODULE_AUTHOR("Vincent Shih <vincent.shih@sunplus.com>"); +MODULE_DESCRIPTION("Sunplus USB 2.0 phy driver"); +MODULE_LICENSE("GPL"); |
