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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/mfd/ac100.c
downloadlinux-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/mfd/ac100.c')
-rw-r--r--drivers/mfd/ac100.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/drivers/mfd/ac100.c b/drivers/mfd/ac100.c
new file mode 100644
index 000000000..8f47c392c
--- /dev/null
+++ b/drivers/mfd/ac100.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * MFD core driver for X-Powers' AC100 Audio Codec IC
+ *
+ * The AC100 is a highly integrated audio codec and RTC subsystem designed
+ * for mobile applications. It has 3 I2S/PCM interfaces, a 2 channel DAC,
+ * a 2 channel ADC with 5 inputs and a builtin mixer. The RTC subsystem has
+ * 3 clock outputs.
+ *
+ * The audio codec and RTC parts are completely separate, sharing only the
+ * host interface for access to its registers.
+ *
+ * Copyright (2016) Chen-Yu Tsai
+ *
+ * Author: Chen-Yu Tsai <wens@csie.org>
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/ac100.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/sunxi-rsb.h>
+
+static const struct regmap_range ac100_writeable_ranges[] = {
+ regmap_reg_range(AC100_CHIP_AUDIO_RST, AC100_I2S_SR_CTRL),
+ regmap_reg_range(AC100_I2S1_CLK_CTRL, AC100_I2S1_MXR_GAIN),
+ regmap_reg_range(AC100_I2S2_CLK_CTRL, AC100_I2S2_MXR_GAIN),
+ regmap_reg_range(AC100_I2S3_CLK_CTRL, AC100_I2S3_SIG_PATH_CTRL),
+ regmap_reg_range(AC100_ADC_DIG_CTRL, AC100_ADC_VOL_CTRL),
+ regmap_reg_range(AC100_HMIC_CTRL1, AC100_HMIC_STATUS),
+ regmap_reg_range(AC100_DAC_DIG_CTRL, AC100_DAC_MXR_GAIN),
+ regmap_reg_range(AC100_ADC_APC_CTRL, AC100_LINEOUT_CTRL),
+ regmap_reg_range(AC100_ADC_DAP_L_CTRL, AC100_ADC_DAP_OPT),
+ regmap_reg_range(AC100_DAC_DAP_CTRL, AC100_DAC_DAP_OPT),
+ regmap_reg_range(AC100_ADC_DAP_ENA, AC100_DAC_DAP_ENA),
+ regmap_reg_range(AC100_SRC1_CTRL1, AC100_SRC1_CTRL2),
+ regmap_reg_range(AC100_SRC2_CTRL1, AC100_SRC2_CTRL2),
+ regmap_reg_range(AC100_CLK32K_ANALOG_CTRL, AC100_CLKOUT_CTRL3),
+ regmap_reg_range(AC100_RTC_RST, AC100_RTC_UPD),
+ regmap_reg_range(AC100_ALM_INT_ENA, AC100_ALM_INT_STA),
+ regmap_reg_range(AC100_ALM_SEC, AC100_RTC_GP(15)),
+};
+
+static const struct regmap_range ac100_volatile_ranges[] = {
+ regmap_reg_range(AC100_CHIP_AUDIO_RST, AC100_PLL_CTRL2),
+ regmap_reg_range(AC100_HMIC_STATUS, AC100_HMIC_STATUS),
+ regmap_reg_range(AC100_ADC_DAP_L_STA, AC100_ADC_DAP_L_STA),
+ regmap_reg_range(AC100_SRC1_CTRL1, AC100_SRC1_CTRL1),
+ regmap_reg_range(AC100_SRC1_CTRL3, AC100_SRC2_CTRL1),
+ regmap_reg_range(AC100_SRC2_CTRL3, AC100_SRC2_CTRL4),
+ regmap_reg_range(AC100_RTC_RST, AC100_RTC_RST),
+ regmap_reg_range(AC100_RTC_SEC, AC100_ALM_INT_STA),
+ regmap_reg_range(AC100_ALM_SEC, AC100_ALM_UPD),
+};
+
+static const struct regmap_access_table ac100_writeable_table = {
+ .yes_ranges = ac100_writeable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(ac100_writeable_ranges),
+};
+
+static const struct regmap_access_table ac100_volatile_table = {
+ .yes_ranges = ac100_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(ac100_volatile_ranges),
+};
+
+static const struct regmap_config ac100_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 16,
+ .wr_table = &ac100_writeable_table,
+ .volatile_table = &ac100_volatile_table,
+ .max_register = AC100_RTC_GP(15),
+ .cache_type = REGCACHE_MAPLE,
+};
+
+static struct mfd_cell ac100_cells[] = {
+ {
+ .name = "ac100-codec",
+ .of_compatible = "x-powers,ac100-codec",
+ }, {
+ .name = "ac100-rtc",
+ .of_compatible = "x-powers,ac100-rtc",
+ },
+};
+
+static int ac100_rsb_probe(struct sunxi_rsb_device *rdev)
+{
+ struct ac100_dev *ac100;
+ int ret;
+
+ ac100 = devm_kzalloc(&rdev->dev, sizeof(*ac100), GFP_KERNEL);
+ if (!ac100)
+ return -ENOMEM;
+
+ ac100->dev = &rdev->dev;
+ sunxi_rsb_device_set_drvdata(rdev, ac100);
+
+ ac100->regmap = devm_regmap_init_sunxi_rsb(rdev, &ac100_regmap_config);
+ if (IS_ERR(ac100->regmap)) {
+ ret = PTR_ERR(ac100->regmap);
+ dev_err(ac100->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_mfd_add_devices(ac100->dev, PLATFORM_DEVID_NONE, ac100_cells,
+ ARRAY_SIZE(ac100_cells), NULL, 0, NULL);
+ if (ret) {
+ dev_err(ac100->dev, "failed to add MFD devices: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id ac100_of_match[] = {
+ { .compatible = "x-powers,ac100" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, ac100_of_match);
+
+static struct sunxi_rsb_driver ac100_rsb_driver = {
+ .driver = {
+ .name = "ac100",
+ .of_match_table = of_match_ptr(ac100_of_match),
+ },
+ .probe = ac100_rsb_probe,
+};
+module_sunxi_rsb_driver(ac100_rsb_driver);
+
+MODULE_DESCRIPTION("Audio codec MFD core driver for AC100");
+MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
+MODULE_LICENSE("GPL v2");