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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /sound/soc/codecs/rt-sdw-common.c | |
| download | linux-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 'sound/soc/codecs/rt-sdw-common.c')
| -rw-r--r-- | sound/soc/codecs/rt-sdw-common.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt-sdw-common.c b/sound/soc/codecs/rt-sdw-common.c new file mode 100644 index 000000000..ad61943ce --- /dev/null +++ b/sound/soc/codecs/rt-sdw-common.c @@ -0,0 +1,238 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// rt-sdw-common.c +// +// Copyright(c) 2024 Realtek Semiconductor Corp. +// + +/* + * This file defines common functions used with Realtek soundwire codecs. + */ + +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/bitops.h> +#include <linux/soundwire/sdw_registers.h> +#include <sound/jack.h> + +#include "rt-sdw-common.h" + +/** + * rt_sdca_index_write - Write a value to Realtek defined register. + * + * @map: map for setting. + * @nid: Realtek-defined ID. + * @reg: register. + * @value: value. + * + * A value of zero will be returned on success, a negative errno will + * be returned in error cases. + */ +int rt_sdca_index_write(struct regmap *map, unsigned int nid, + unsigned int reg, unsigned int value) +{ + unsigned int addr = (nid << 20) | reg; + int ret; + + ret = regmap_write(map, addr, value); + if (ret < 0) + pr_err("Failed to set value: %06x <= %04x ret=%d\n", + addr, value, ret); + + return ret; +} +EXPORT_SYMBOL_GPL(rt_sdca_index_write); + +/** + * rt_sdca_index_read - Read value from Realtek defined register. + * + * @map: map for setting. + * @nid: Realtek-defined ID. + * @reg: register. + * @value: value. + * + * A value of zero will be returned on success, a negative errno will + * be returned in error cases. + */ +int rt_sdca_index_read(struct regmap *map, unsigned int nid, + unsigned int reg, unsigned int *value) +{ + unsigned int addr = (nid << 20) | reg; + int ret; + + ret = regmap_read(map, addr, value); + if (ret < 0) + pr_err("Failed to get value: %06x => %04x ret=%d\n", + addr, *value, ret); + + return ret; +} +EXPORT_SYMBOL_GPL(rt_sdca_index_read); + +/** + * rt_sdca_index_update_bits - Update value on Realtek defined register. + * + * @map: map for setting. + * @nid: Realtek-defined ID. + * @reg: register. + * @mask: Bitmask to change + * @val: New value for bitmask + * + * A value of zero will be returned on success, a negative errno will + * be returned in error cases. + */ + +int rt_sdca_index_update_bits(struct regmap *map, + unsigned int nid, unsigned int reg, unsigned int mask, unsigned int val) +{ + unsigned int tmp; + int ret; + + ret = rt_sdca_index_read(map, nid, reg, &tmp); + if (ret < 0) + return ret; + + set_mask_bits(&tmp, mask, val); + return rt_sdca_index_write(map, nid, reg, tmp); +} +EXPORT_SYMBOL_GPL(rt_sdca_index_update_bits); + +/** + * rt_sdca_btn_type - Decision of button type. + * + * @buffer: UMP message buffer. + * + * A button type will be returned regarding to buffer, + * it returns zero if buffer cannot be recognized. + */ +int rt_sdca_btn_type(unsigned char *buffer) +{ + u8 btn_type = 0; + int ret = 0; + + btn_type |= buffer[0] & 0xf; + btn_type |= (buffer[0] >> 4) & 0xf; + btn_type |= buffer[1] & 0xf; + btn_type |= (buffer[1] >> 4) & 0xf; + + if (btn_type & BIT(0)) + ret |= SND_JACK_BTN_2; + if (btn_type & BIT(1)) + ret |= SND_JACK_BTN_3; + if (btn_type & BIT(2)) + ret |= SND_JACK_BTN_0; + if (btn_type & BIT(3)) + ret |= SND_JACK_BTN_1; + + return ret; +} +EXPORT_SYMBOL_GPL(rt_sdca_btn_type); + +/** + * rt_sdca_headset_detect - Headset jack type detection. + * + * @map: map for setting. + * @entity_id: SDCA entity ID. + * + * A headset jack type will be returned, a negative errno will + * be returned in error cases. + */ +int rt_sdca_headset_detect(struct regmap *map, unsigned int entity_id) +{ + unsigned int det_mode, jack_type; + int ret; + + /* get detected_mode */ + ret = regmap_read(map, SDW_SDCA_CTL(SDCA_NUM_JACK_CODEC, entity_id, + RT_SDCA_CTL_DETECTED_MODE, 0), &det_mode); + + if (ret < 0) + goto io_error; + + switch (det_mode) { + case 0x03: + jack_type = SND_JACK_HEADPHONE; + break; + case 0x05: + jack_type = SND_JACK_HEADSET; + break; + default: + jack_type = 0; + break; + } + + /* write selected_mode */ + if (det_mode) { + ret = regmap_write(map, SDW_SDCA_CTL(SDCA_NUM_JACK_CODEC, entity_id, + RT_SDCA_CTL_SELECTED_MODE, 0), det_mode); + if (ret < 0) + goto io_error; + } + + return jack_type; + +io_error: + pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret); + return ret; +} +EXPORT_SYMBOL_GPL(rt_sdca_headset_detect); + +/** + * rt_sdca_button_detect - Read UMP message and decide button type. + * + * @map: map for setting. + * @entity_id: SDCA entity ID. + * @hid_buf_addr: HID buffer address. + * @hid_id: Report ID for HID. + * + * A button type will be returned regarding to buffer, + * it returns zero if buffer cannot be recognized. + */ +int rt_sdca_button_detect(struct regmap *map, unsigned int entity_id, + unsigned int hid_buf_addr, unsigned int hid_id) +{ + unsigned int btn_type = 0, offset, idx, val, owner; + unsigned char buf[3]; + int ret; + + /* get current UMP message owner */ + ret = regmap_read(map, SDW_SDCA_CTL(SDCA_NUM_HID, entity_id, + RT_SDCA_CTL_HIDTX_CURRENT_OWNER, 0), &owner); + if (ret < 0) + return 0; + + /* if owner is device then there is no button event from device */ + if (owner == 1) + return 0; + + /* read UMP message offset */ + ret = regmap_read(map, SDW_SDCA_CTL(SDCA_NUM_HID, entity_id, + RT_SDCA_CTL_HIDTX_MESSAGE_OFFSET, 0), &offset); + if (ret < 0) + goto _end_btn_det_; + + for (idx = 0; idx < sizeof(buf); idx++) { + ret = regmap_read(map, hid_buf_addr + offset + idx, &val); + if (ret < 0) + goto _end_btn_det_; + buf[idx] = val & 0xff; + } + /* Report ID for HID */ + if (buf[0] == hid_id) + btn_type = rt_sdca_btn_type(&buf[1]); + +_end_btn_det_: + /* Host is owner, so set back to device */ + if (owner == 0) + /* set owner to device */ + regmap_write(map, + SDW_SDCA_CTL(SDCA_NUM_HID, entity_id, + RT_SDCA_CTL_HIDTX_CURRENT_OWNER, 0), 0x01); + + return btn_type; +} +EXPORT_SYMBOL_GPL(rt_sdca_button_detect); + +MODULE_DESCRIPTION("Realtek soundwire common functions"); +MODULE_AUTHOR("jack yu <jack.yu@realtek.com>"); +MODULE_LICENSE("GPL"); |
