mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
71a5cc28e8
- Add support for Software Nodes to MFD Core - Remove support for Device Properties from MFD Core - Use standard APIs in MFD Core - New Drivers - Add support for ROHM BD9576MUF and BD9573MUF PMICs - Add support for Netronix Embedded Controller, PWM and RTC - Add support for Actions Semi ATC260x PMICs and OnKey - New Device Support - Add support for DG1 PCIe Graphics Card to Intel PMT - Add support for ROHM BD71815 PMIC to ROHM BD71828 - Add support for Tolino Shine 2 HD to Netronix Embedded Controller - Add support for AX10 BMC Secure Updates to Intel M10 BMC - Removed Device Support - Remove Arizona Extcon support from MFD - Remove ST-E AB8500 Power Supply code from MFD - Remove AB3100 altogether - New Functionality - Add support for SMBus and I2C modes to Dialog DA9063 - Switch to using Software Nodes in Intel (various) - New/converted Device Tree bindings; rohm,bd71815-pmic, rohm,bd9576-pmic, netronix,ntxec, actions,atc260x, ricoh,rn5t618, qcom-pm8xxx - Fix-ups - Fix error handling/path; intel_pmt - Simplify code; rohm-bd718x7, ab8500-core, intel-m10-bmc - Trivial clean-ups (reordering, spelling); rohm-generic, rn5t618, max8997 - Use correct data-type; db8500-prcmu - Remove superfluous code; lp87565, intel_quark_i2c_gpi, lpc_sch, twl - Use generic APIs/defines; lm3533-core, intel_quark_i2c_gpio - Regmap related fix-ups; intel-m10-bmc, sec-core - Reorder resource freeing during remove; intel_quark_i2c_gpio - Make table indexing more robust; intel_quark_i2c_gpio - Fix reference imbalances; arizona-irq - Staticify and (un)constify things; arizona-spi, stmpe, ene-kb3930, intel-lpss-acpi, intel-lpss-pci, atc260x-i2c, intel_quark_i2c_gpio - Bug Fixes - Fix incorrect (register) values; intel-m10-bmc - Kconfig related fixes; ABX500_CORE - Do not clear the Auto Reload Register; stm32-timers -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEdrbJNaO+IJqU8IdIUa+KL4f8d2EFAmCJIPEACgkQUa+KL4f8 d2FRZA//Xu9f8u2uLuIfuhxIjUUXOqIjRAFnkhKlgGZhKsY8BohjQ80Tj9yp6UKy St6ABwACO0hJap4zL4FxPW9+HXTmqZvAibnvHnvZdYSQ3ai6x9h6kTNvhSNLeRQU fuY7eN8kpAHHiHNKNJCsQLQMvcIyP7+0KAP6qir5GYsMjiXspWq7THUnfBi2JXC6 y60guDo9XrgmQTO+pB870UJrKLM/h+iiohNRGxLFlShKhFCgbTB/wyw6bFeKy1SB 0/6XuY6fOt1IQyBDuzw383Q2faMWO9U+es29bwvFxdqJDK0MHQXC47zBba2q94wL /9i/HSoz9dRHnTJNYUKWsVcPv4T84w/Iq7scyDvE00ubehJ+oo/M7Au3M6Tt3M1/ 6lBAwFYXiwhQnp9EP3nwPwgJF6JzX1IGuMOsUAqrVFOEMuIkZKbRdUlatUhqepJT spV4/TOfztAhY/7BzEOZLnF8cFNjmL5sn42/UzSRW708V5SxuTNsS48KJ4l0c7Er CZSTlR/T1rKkWqf7ejaS2TNqMCdYyB3vZW0quDxZTHTZHv9huNUvtbKPR7jmd+4p mrMIik7EE4BzC5m8tBPnXXZl+Og0keeYv4LUDBuLDX1agrxYIErl4ITvQTqqMfX1 Jt14SIjSO56iu2ngQuvGWwegVK4/urO2kBJKUAH1QN1OocNaajQ= =IJSL -----END PGP SIGNATURE----- Merge tag 'mfd-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Core Framework: - Add support for Software Nodes to MFD Core - Remove support for Device Properties from MFD Core - Use standard APIs in MFD Core New Drivers: - Add support for ROHM BD9576MUF and BD9573MUF PMICs - Add support for Netronix Embedded Controller, PWM and RTC - Add support for Actions Semi ATC260x PMICs and OnKey New Device Support: - Add support for DG1 PCIe Graphics Card to Intel PMT - Add support for ROHM BD71815 PMIC to ROHM BD71828 - Add support for Tolino Shine 2 HD to Netronix Embedded Controller - Add support for AX10 BMC Secure Updates to Intel M10 BMC Removed Device Support: - Remove Arizona Extcon support from MFD - Remove ST-E AB8500 Power Supply code from MFD - Remove AB3100 altogether New Functionality: - Add support for SMBus and I2C modes to Dialog DA9063 - Switch to using Software Nodes in Intel (various) New/converted Device Tree bindings: - rohm bd71815-pmic, rohm bd9576-pmic, netronix ntxec, actions atc260x, ricoh rn5t618, qcom pm8xxx - Fix-ups: - Fix error handling/path; intel_pmt - Simplify code; rohm-bd718x7, ab8500-core, intel-m10-bmc - Trivial clean-ups (reordering, spelling); rohm-generic, rn5t618, max8997 - Use correct data-type; db8500-prcmu - Remove superfluous code; lp87565, intel_quark_i2c_gpi, lpc_sch, twl - Use generic APIs/defines; lm3533-core, intel_quark_i2c_gpio - Regmap related fix-ups; intel-m10-bmc, sec-core - Reorder resource freeing during remove; intel_quark_i2c_gpio - Make table indexing more robust; intel_quark_i2c_gpio - Fix reference imbalances; arizona-irq - Staticify and (un)constify things; arizona-spi, stmpe, ene-kb3930, intel-lpss-acpi, intel-lpss-pci, atc260x-i2c, intel_quark_i2c_gpio Bug Fixes: - Fix incorrect (register) values; intel-m10-bmc - Kconfig related fixes; ABX500_CORE - Do not clear the Auto Reload Register; stm32-timers" * tag 'mfd-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (84 commits) mfd: intel-m10-bmc: Add support for MAX10 BMC Secure Updates Revert "mfd: max8997: Add of_compatible to Extcon and Charger mfd_cell" mfd: twl: Remove unused inline function twl4030charger_usb_en() dt-bindings: mfd: Convert pm8xxx bindings to yaml dt-bindings: mfd: Add compatible for pmk8350 rtc i2c: designware: Get rid of legacy platform data mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes mfd: lpc_sch: Partially revert "Add support for Intel Quark X1000" mfd: arizona: Fix rumtime PM imbalance on error mfd: max8997: Replace 8998 with 8997 mfd: core: Use acpi_find_child_device() for child devices lookup mfd: intel_quark_i2c_gpio: Don't play dirty trick with const mfd: intel_quark_i2c_gpio: Enable MSI interrupt mfd: intel_quark_i2c_gpio: Reuse BAR definitions for MFD cell indexing mfd: ntxec: Support for EC in Tolino Shine 2 HD mfd: stm32-timers: Avoid clearing auto reload register mfd: intel_quark_i2c_gpio: Replace I²C speeds with descriptive definitions mfd: intel_quark_i2c_gpio: Remove unused struct device member mfd: intel_quark_i2c_gpio: Unregister resources in reversed order mfd: Kconfig: ABX500_CORE should depend on ARCH_U8500 ...
306 lines
7.9 KiB
C
306 lines
7.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Intel Quark MFD PCI driver for I2C & GPIO
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*
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* Copyright(c) 2014 Intel Corporation.
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*
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* Intel Quark PCI device for I2C and GPIO controller sharing the same
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* PCI function. This PCI driver will split the 2 devices into their
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* respective drivers.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/mfd/core.h>
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#include <linux/clkdev.h>
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#include <linux/clk-provider.h>
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#include <linux/dmi.h>
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#include <linux/i2c.h>
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#include <linux/platform_data/gpio-dwapb.h>
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#include <linux/property.h>
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/* PCI BAR for register base address */
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#define MFD_I2C_BAR 0
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#define MFD_GPIO_BAR 1
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/* ACPI _ADR value to match the child node */
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#define MFD_ACPI_MATCH_GPIO 0ULL
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#define MFD_ACPI_MATCH_I2C 1ULL
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/* The base GPIO number under GPIOLIB framework */
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#define INTEL_QUARK_MFD_GPIO_BASE 8
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/* The default number of South-Cluster GPIO on Quark. */
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#define INTEL_QUARK_MFD_NGPIO 8
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/* The DesignWare GPIO ports on Quark. */
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#define INTEL_QUARK_GPIO_NPORTS 1
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#define INTEL_QUARK_IORES_MEM 0
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#define INTEL_QUARK_IORES_IRQ 1
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#define INTEL_QUARK_I2C_CONTROLLER_CLK "i2c_designware.0"
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/* The Quark I2C controller source clock */
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#define INTEL_QUARK_I2C_CLK_HZ 33000000
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struct intel_quark_mfd {
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struct clk *i2c_clk;
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struct clk_lookup *i2c_clk_lookup;
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};
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static const struct property_entry intel_quark_i2c_controller_standard_properties[] = {
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PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_STANDARD_MODE_FREQ),
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{ }
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};
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static const struct software_node intel_quark_i2c_controller_standard_node = {
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.name = "intel-quark-i2c-controller",
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.properties = intel_quark_i2c_controller_standard_properties,
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};
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static const struct property_entry intel_quark_i2c_controller_fast_properties[] = {
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PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_FAST_MODE_FREQ),
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{ }
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};
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static const struct software_node intel_quark_i2c_controller_fast_node = {
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.name = "intel-quark-i2c-controller",
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.properties = intel_quark_i2c_controller_fast_properties,
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};
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static const struct dmi_system_id dmi_platform_info[] = {
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{
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.matches = {
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DMI_EXACT_MATCH(DMI_BOARD_NAME, "Galileo"),
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},
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.driver_data = (void *)&intel_quark_i2c_controller_standard_node,
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},
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{
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.matches = {
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DMI_EXACT_MATCH(DMI_BOARD_NAME, "GalileoGen2"),
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},
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.driver_data = (void *)&intel_quark_i2c_controller_fast_node,
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},
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{
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.matches = {
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DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
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},
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.driver_data = (void *)&intel_quark_i2c_controller_fast_node,
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},
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{}
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};
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/* This is used as a place holder and will be modified at run-time */
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static struct resource intel_quark_i2c_res[] = {
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[INTEL_QUARK_IORES_MEM] = {
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.flags = IORESOURCE_MEM,
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},
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[INTEL_QUARK_IORES_IRQ] = {
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct mfd_cell_acpi_match intel_quark_acpi_match_i2c = {
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.adr = MFD_ACPI_MATCH_I2C,
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};
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/* This is used as a place holder and will be modified at run-time */
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static struct resource intel_quark_gpio_res[] = {
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[INTEL_QUARK_IORES_MEM] = {
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.flags = IORESOURCE_MEM,
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},
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};
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static struct mfd_cell_acpi_match intel_quark_acpi_match_gpio = {
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.adr = MFD_ACPI_MATCH_GPIO,
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};
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static struct mfd_cell intel_quark_mfd_cells[] = {
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[MFD_I2C_BAR] = {
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.id = MFD_I2C_BAR,
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.name = "i2c_designware",
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.acpi_match = &intel_quark_acpi_match_i2c,
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.num_resources = ARRAY_SIZE(intel_quark_i2c_res),
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.resources = intel_quark_i2c_res,
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.ignore_resource_conflicts = true,
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},
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[MFD_GPIO_BAR] = {
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.id = MFD_GPIO_BAR,
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.name = "gpio-dwapb",
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.acpi_match = &intel_quark_acpi_match_gpio,
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.num_resources = ARRAY_SIZE(intel_quark_gpio_res),
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.resources = intel_quark_gpio_res,
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.ignore_resource_conflicts = true,
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},
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};
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static const struct pci_device_id intel_quark_mfd_ids[] = {
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{ PCI_VDEVICE(INTEL, 0x0934), },
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{},
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};
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MODULE_DEVICE_TABLE(pci, intel_quark_mfd_ids);
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static int intel_quark_register_i2c_clk(struct device *dev)
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{
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struct intel_quark_mfd *quark_mfd = dev_get_drvdata(dev);
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struct clk *i2c_clk;
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i2c_clk = clk_register_fixed_rate(dev,
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INTEL_QUARK_I2C_CONTROLLER_CLK, NULL,
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0, INTEL_QUARK_I2C_CLK_HZ);
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if (IS_ERR(i2c_clk))
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return PTR_ERR(i2c_clk);
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quark_mfd->i2c_clk = i2c_clk;
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quark_mfd->i2c_clk_lookup = clkdev_create(i2c_clk, NULL,
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INTEL_QUARK_I2C_CONTROLLER_CLK);
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if (!quark_mfd->i2c_clk_lookup) {
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clk_unregister(quark_mfd->i2c_clk);
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dev_err(dev, "Fixed clk register failed\n");
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return -ENOMEM;
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}
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return 0;
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}
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static void intel_quark_unregister_i2c_clk(struct device *dev)
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{
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struct intel_quark_mfd *quark_mfd = dev_get_drvdata(dev);
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if (!quark_mfd->i2c_clk_lookup)
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return;
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clkdev_drop(quark_mfd->i2c_clk_lookup);
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clk_unregister(quark_mfd->i2c_clk);
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}
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static int intel_quark_i2c_setup(struct pci_dev *pdev)
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{
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struct mfd_cell *cell = &intel_quark_mfd_cells[MFD_I2C_BAR];
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struct resource *res = intel_quark_i2c_res;
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const struct dmi_system_id *dmi_id;
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res[INTEL_QUARK_IORES_MEM].start = pci_resource_start(pdev, MFD_I2C_BAR);
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res[INTEL_QUARK_IORES_MEM].end = pci_resource_end(pdev, MFD_I2C_BAR);
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res[INTEL_QUARK_IORES_IRQ].start = pci_irq_vector(pdev, 0);
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res[INTEL_QUARK_IORES_IRQ].end = pci_irq_vector(pdev, 0);
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/* Normal mode by default */
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cell->swnode = &intel_quark_i2c_controller_standard_node;
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dmi_id = dmi_first_match(dmi_platform_info);
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if (dmi_id)
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cell->swnode = (struct software_node *)dmi_id->driver_data;
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return 0;
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}
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static int intel_quark_gpio_setup(struct pci_dev *pdev)
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{
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struct mfd_cell *cell = &intel_quark_mfd_cells[MFD_GPIO_BAR];
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struct resource *res = intel_quark_gpio_res;
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struct dwapb_platform_data *pdata;
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struct device *dev = &pdev->dev;
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res[INTEL_QUARK_IORES_MEM].start = pci_resource_start(pdev, MFD_GPIO_BAR);
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res[INTEL_QUARK_IORES_MEM].end = pci_resource_end(pdev, MFD_GPIO_BAR);
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pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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return -ENOMEM;
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/* For intel quark x1000, it has only one port: portA */
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pdata->nports = INTEL_QUARK_GPIO_NPORTS;
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pdata->properties = devm_kcalloc(dev, pdata->nports,
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sizeof(*pdata->properties),
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GFP_KERNEL);
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if (!pdata->properties)
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return -ENOMEM;
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/* Set the properties for portA */
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pdata->properties->fwnode = NULL;
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pdata->properties->idx = 0;
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pdata->properties->ngpio = INTEL_QUARK_MFD_NGPIO;
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pdata->properties->gpio_base = INTEL_QUARK_MFD_GPIO_BASE;
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pdata->properties->irq[0] = pci_irq_vector(pdev, 0);
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pdata->properties->irq_shared = true;
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cell->platform_data = pdata;
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cell->pdata_size = sizeof(*pdata);
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return 0;
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}
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static int intel_quark_mfd_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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struct intel_quark_mfd *quark_mfd;
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int ret;
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ret = pcim_enable_device(pdev);
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if (ret)
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return ret;
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quark_mfd = devm_kzalloc(&pdev->dev, sizeof(*quark_mfd), GFP_KERNEL);
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if (!quark_mfd)
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return -ENOMEM;
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dev_set_drvdata(&pdev->dev, quark_mfd);
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ret = intel_quark_register_i2c_clk(&pdev->dev);
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if (ret)
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return ret;
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pci_set_master(pdev);
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/* This driver only requires 1 IRQ vector */
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ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
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if (ret < 0)
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goto err_unregister_i2c_clk;
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ret = intel_quark_i2c_setup(pdev);
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if (ret)
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goto err_free_irq_vectors;
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ret = intel_quark_gpio_setup(pdev);
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if (ret)
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goto err_free_irq_vectors;
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ret = mfd_add_devices(&pdev->dev, 0, intel_quark_mfd_cells,
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ARRAY_SIZE(intel_quark_mfd_cells), NULL, 0,
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NULL);
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if (ret)
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goto err_free_irq_vectors;
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return 0;
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err_free_irq_vectors:
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pci_free_irq_vectors(pdev);
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err_unregister_i2c_clk:
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intel_quark_unregister_i2c_clk(&pdev->dev);
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return ret;
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}
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static void intel_quark_mfd_remove(struct pci_dev *pdev)
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{
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mfd_remove_devices(&pdev->dev);
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pci_free_irq_vectors(pdev);
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intel_quark_unregister_i2c_clk(&pdev->dev);
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}
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static struct pci_driver intel_quark_mfd_driver = {
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.name = "intel_quark_mfd_i2c_gpio",
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.id_table = intel_quark_mfd_ids,
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.probe = intel_quark_mfd_probe,
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.remove = intel_quark_mfd_remove,
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};
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module_pci_driver(intel_quark_mfd_driver);
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MODULE_AUTHOR("Raymond Tan <raymond.tan@intel.com>");
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MODULE_DESCRIPTION("Intel Quark MFD PCI driver for I2C & GPIO");
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MODULE_LICENSE("GPL v2");
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