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authorJames Ogletree <jogletre@opensource.cirrus.com>2024-06-20 19:17:43 +0300
committerLee Jones <lee@kernel.org>2024-06-28 17:36:05 +0300
commitcb626376cbd00cd69329371519a8e9568baef715 (patch)
tree90b8731dd9694e25192d407c11d9758f192fbc31 /include/linux/mfd
parent2fab5abad124fe7e1b99ccba3305aa4c5a24496b (diff)
downloadlinux-cb626376cbd00cd69329371519a8e9568baef715.tar.xz
mfd: cs40l50: Add support for CS40L50 core driver
Introduce support for Cirrus Logic Device CS40L50: a haptic driver with waveform memory, integrated DSP, and closed-loop algorithms. The MFD component registers and initializes the device. Signed-off-by: James Ogletree <jogletre@opensource.cirrus.com> Reviewed-by: Jeff LaBundy <jeff@labundy.com> Link: https://lore.kernel.org/r/20240620161745.2312359-4-jogletre@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/cs40l50.h137
1 files changed, 137 insertions, 0 deletions
diff --git a/include/linux/mfd/cs40l50.h b/include/linux/mfd/cs40l50.h
new file mode 100644
index 000000000000..e5dc49860944
--- /dev/null
+++ b/include/linux/mfd/cs40l50.h
@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * CS40L50 Advanced Haptic Driver with waveform memory,
+ * integrated DSP, and closed-loop algorithms
+ *
+ * Copyright 2024 Cirrus Logic, Inc.
+ *
+ * Author: James Ogletree <james.ogletree@cirrus.com>
+ */
+
+#ifndef __MFD_CS40L50_H__
+#define __MFD_CS40L50_H__
+
+#include <linux/firmware/cirrus/cs_dsp.h>
+#include <linux/gpio/consumer.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+
+/* Power Supply Configuration */
+#define CS40L50_BLOCK_ENABLES2 0x201C
+#define CS40L50_ERR_RLS 0x2034
+#define CS40L50_BST_LPMODE_SEL 0x3810
+#define CS40L50_DCM_LOW_POWER 0x1
+#define CS40L50_OVERTEMP_WARN 0x4000010
+
+/* Interrupts */
+#define CS40L50_IRQ1_INT_1 0xE010
+#define CS40L50_IRQ1_BASE CS40L50_IRQ1_INT_1
+#define CS40L50_IRQ1_INT_2 0xE014
+#define CS40L50_IRQ1_INT_8 0xE02C
+#define CS40L50_IRQ1_INT_9 0xE030
+#define CS40L50_IRQ1_INT_10 0xE034
+#define CS40L50_IRQ1_INT_18 0xE054
+#define CS40L50_IRQ1_MASK_1 0xE090
+#define CS40L50_IRQ1_MASK_2 0xE094
+#define CS40L50_IRQ1_MASK_20 0xE0DC
+#define CS40L50_IRQ1_INT_1_OFFSET (CS40L50_IRQ1_INT_1 - CS40L50_IRQ1_BASE)
+#define CS40L50_IRQ1_INT_2_OFFSET (CS40L50_IRQ1_INT_2 - CS40L50_IRQ1_BASE)
+#define CS40L50_IRQ1_INT_8_OFFSET (CS40L50_IRQ1_INT_8 - CS40L50_IRQ1_BASE)
+#define CS40L50_IRQ1_INT_9_OFFSET (CS40L50_IRQ1_INT_9 - CS40L50_IRQ1_BASE)
+#define CS40L50_IRQ1_INT_10_OFFSET (CS40L50_IRQ1_INT_10 - CS40L50_IRQ1_BASE)
+#define CS40L50_IRQ1_INT_18_OFFSET (CS40L50_IRQ1_INT_18 - CS40L50_IRQ1_BASE)
+#define CS40L50_IRQ_MASK_2_OVERRIDE 0xFFDF7FFF
+#define CS40L50_IRQ_MASK_20_OVERRIDE 0x15C01000
+#define CS40L50_AMP_SHORT_MASK BIT(31)
+#define CS40L50_DSP_QUEUE_MASK BIT(21)
+#define CS40L50_TEMP_ERR_MASK BIT(31)
+#define CS40L50_BST_UVP_MASK BIT(6)
+#define CS40L50_BST_SHORT_MASK BIT(7)
+#define CS40L50_BST_ILIMIT_MASK BIT(18)
+#define CS40L50_UVLO_VDDBATT_MASK BIT(16)
+#define CS40L50_GLOBAL_ERROR_MASK BIT(15)
+
+enum cs40l50_irq_list {
+ CS40L50_DSP_QUEUE_IRQ,
+ CS40L50_GLOBAL_ERROR_IRQ,
+ CS40L50_UVLO_VDDBATT_IRQ,
+ CS40L50_BST_ILIMIT_IRQ,
+ CS40L50_BST_SHORT_IRQ,
+ CS40L50_BST_UVP_IRQ,
+ CS40L50_TEMP_ERR_IRQ,
+ CS40L50_AMP_SHORT_IRQ,
+};
+
+/* DSP */
+#define CS40L50_XMEM_PACKED_0 0x2000000
+#define CS40L50_XMEM_UNPACKED24_0 0x2800000
+#define CS40L50_SYS_INFO_ID 0x25E0000
+#define CS40L50_DSP_QUEUE_WT 0x28042C8
+#define CS40L50_DSP_QUEUE_RD 0x28042CC
+#define CS40L50_NUM_WAVES 0x2805C18
+#define CS40L50_CORE_BASE 0x2B80000
+#define CS40L50_YMEM_PACKED_0 0x2C00000
+#define CS40L50_YMEM_UNPACKED24_0 0x3400000
+#define CS40L50_PMEM_0 0x3800000
+#define CS40L50_DSP_POLL_US 1000
+#define CS40L50_DSP_TIMEOUT_COUNT 100
+#define CS40L50_RESET_PULSE_US 2200
+#define CS40L50_CP_READY_US 3100
+#define CS40L50_AUTOSUSPEND_MS 2000
+#define CS40L50_PM_ALGO 0x9F206
+#define CS40L50_GLOBAL_ERR_RLS_SET BIT(11)
+#define CS40L50_GLOBAL_ERR_RLS_CLEAR 0
+
+enum cs40l50_wseqs {
+ CS40L50_PWR_ON,
+ CS40L50_STANDBY,
+ CS40L50_ACTIVE,
+ CS40L50_NUM_WSEQS,
+};
+
+/* DSP Queue */
+#define CS40L50_DSP_QUEUE_BASE 0x11004
+#define CS40L50_DSP_QUEUE_END 0x1101C
+#define CS40L50_DSP_QUEUE 0x11020
+#define CS40L50_PREVENT_HIBER 0x2000003
+#define CS40L50_ALLOW_HIBER 0x2000004
+#define CS40L50_SHUTDOWN 0x2000005
+#define CS40L50_SYSTEM_RESET 0x2000007
+#define CS40L50_START_I2S 0x3000002
+#define CS40L50_OWT_PUSH 0x3000008
+#define CS40L50_STOP_PLAYBACK 0x5000000
+#define CS40L50_OWT_DELETE 0xD000000
+
+/* Firmware files */
+#define CS40L50_FW "cs40l50.wmfw"
+#define CS40L50_WT "cs40l50.bin"
+
+/* Device */
+#define CS40L50_DEVID 0x0
+#define CS40L50_REVID 0x4
+#define CS40L50_DEVID_A 0x40A50
+#define CS40L50_REVID_B0 0xB0
+
+struct cs40l50 {
+ struct device *dev;
+ struct regmap *regmap;
+ struct mutex lock;
+ struct cs_dsp dsp;
+ struct gpio_desc *reset_gpio;
+ struct regmap_irq_chip_data *irq_data;
+ const struct firmware *fw;
+ const struct firmware *bin;
+ struct cs_dsp_wseq wseqs[CS40L50_NUM_WSEQS];
+ int irq;
+ u32 devid;
+ u32 revid;
+};
+
+int cs40l50_dsp_write(struct device *dev, struct regmap *regmap, u32 val);
+int cs40l50_probe(struct cs40l50 *cs40l50);
+int cs40l50_remove(struct cs40l50 *cs40l50);
+
+extern const struct regmap_config cs40l50_regmap;
+extern const struct dev_pm_ops cs40l50_pm_ops;
+
+#endif /* __MFD_CS40L50_H__ */