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| author | Dapeng Mi <dapeng1.mi@linux.intel.com> | 2026-09-17 09:52:33 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-09-22 11:37:46 +0200 |
| commit | 0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch) | |
| tree | 531306c2299f9a269f0a986e29f17ba972180104 /drivers/mfd/ocelot.h | |
| download | linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip | |
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy
Offcore Response events, but it still exposes the inherited
offcore_rsp PMU attribute for programming the corresponding MSR data.
Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface
matches the underlying event name and avoids user & tooling confusion.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
Diffstat (limited to 'drivers/mfd/ocelot.h')
| -rw-r--r-- | drivers/mfd/ocelot.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/mfd/ocelot.h b/drivers/mfd/ocelot.h new file mode 100644 index 000000000..b8bc2f148 --- /dev/null +++ b/drivers/mfd/ocelot.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ +/* Copyright 2021, 2022 Innovative Advantage Inc. */ + +#ifndef _MFD_OCELOT_H +#define _MFD_OCELOT_H + +#include <linux/kconfig.h> + +struct device; +struct regmap; +struct resource; + +/** + * struct ocelot_ddata - Private data for an external Ocelot chip + * @gcb_regmap: General Configuration Block regmap. Used for + * operations like chip reset. + * @cpuorg_regmap: CPU Device Origin Block regmap. Used for operations + * like SPI bus configuration. + * @spi_padding_bytes: Number of padding bytes that must be thrown out before + * read data gets returned. This is calculated during + * initialization based on bus speed. + * @dummy_buf: Zero-filled buffer of spi_padding_bytes size. The dummy + * bytes that will be sent out between the address and + * data of a SPI read operation. + */ +struct ocelot_ddata { + struct regmap *gcb_regmap; + struct regmap *cpuorg_regmap; + int spi_padding_bytes; + void *dummy_buf; +}; + +int ocelot_chip_reset(struct device *dev); +int ocelot_core_init(struct device *dev); + +/* SPI-specific routines that won't be necessary for other interfaces */ +struct regmap *ocelot_spi_init_regmap(struct device *dev, + const struct resource *res); + +#define OCELOT_SPI_BYTE_ORDER_LE 0x00000000 +#define OCELOT_SPI_BYTE_ORDER_BE 0x81818181 + +#ifdef __LITTLE_ENDIAN +#define OCELOT_SPI_BYTE_ORDER OCELOT_SPI_BYTE_ORDER_LE +#else +#define OCELOT_SPI_BYTE_ORDER OCELOT_SPI_BYTE_ORDER_BE +#endif + +#endif |