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![Linus Torvalds](/assets/img/avatar_default.png)
- Set 'struct device' fwnode when registering a new device - New Drivers - Add support for ROHM BD70528 PMIC - New Device Support - Add support for LP87561 4-Phase Regulator to TI LP87565 PMIC - Add support for RK809 and RK817 to Rockchip RK808 - Add support for Lid Angle to ChromeOS core - Add support for CS47L15 CODEC to Madera core - Add support for CS47L92 CODEC to Madera core - Add support for ChromeOS (legacy) Accelerometers in ChromeOS core - Add support for Add Intel Elkhart Lake PCH to Intel LPSS - New Functionality - Provide regulator supply information when registering; madera-core - Additional Device Tree support; lp87565, madera, cros-ec, rohm,bd71837-pmic - Allow over-riding power button press via Device Tree; rohm-bd718x7 - Differentiate between running processors; cros_ec_dev - Fix-ups - Big header file update; cros_ec_commands.h - Split header per-subsystem; rohm-bd718x7 - Remove superfluous code; menelaus, cs5535-mfd, cs47lXX-tables - Trivial; sorting, coding style; intel-lpss-pci - Only remove Power Off functionality if set locally; rk808 - Make use for Power Off Prepare(); rk808 - Fix spelling mistake in header guards; stmfx - Properly free IDA resources - SPDX fixups; cs47lXX-tables, madera - Error path fixups; hi655x-pmic - Bug Fixes - Add missing break in case() statement - Repair undefined behaviour when not initialising variables; arizona-core, madera-core - Fix reference to Device Tree documentation; madera -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEdrbJNaO+IJqU8IdIUa+KL4f8d2EFAl0sLxgACgkQUa+KL4f8 d2E25Q/9HmDJIdfyDQg0xv5IM5HS1WsP9BcJCEgoRIsad4mMDRYt+ZeLbslwMhue E9tsFH359gGvyqR+7d6hPpEUET1UEcJy4eRD1zAc0+epllQTDHSy8oHt1dtH+8xB 2AU5rvAKOqBk83D+V2Hkx2KcroWEQQNYIoR9/12Pi3xmEB1uaCO0/Ajd3B28bIBM Tzi3cVQ3U7jY9EIM44GVTsjDAbMSkQR0iab6cQF0vJAWaUmGKlsO7iRrU1XkN69V qXyBauI8WGiGssihrE8r+jYvHvmg7hA9OKZIckUaMXD/k7kpHbwIaFRh7gukq4Re Q6Cy30NfVJ1tY66/5oqN6gj5znfeuEudMCCzYAkzlROSp5eApe2Ke5ajYn3kOCZd ZKcsrw9Fiox1lKmuWXDbyf0nqf4zwdDPAnShRWaaF5aipwgywyGcwSigVtK4F0P5 Hjc5RLv7GjTAJq+ZzwgKyAdtx8L0mhdLd1ZTQpEXk/g/E9dW4GF72hWj9TQ/9BnA ZflKv8aP3lDGRHgO3Huwi4lMzskB8BVCQMCFwLwGs5cY1oZQhAjTdJzBZjTGexhC evuuA8OUsCrOWMvnZf3saSdHJ1iMHtfPnqEGHRJQtNj4fFaXv80LasIomvvfJc1/ 9JlRyAgm2pF7YDrgTh65ZzBb324eKSZZoAj9XZbnTyzxUAcF69A= =A3jw -----END PGP SIGNATURE----- Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Core Frameworks: - Set 'struct device' fwnode when registering a new device New Drivers: - Add support for ROHM BD70528 PMIC New Device Support: - Add support for LP87561 4-Phase Regulator to TI LP87565 PMIC - Add support for RK809 and RK817 to Rockchip RK808 - Add support for Lid Angle to ChromeOS core - Add support for CS47L15 CODEC to Madera core - Add support for CS47L92 CODEC to Madera core - Add support for ChromeOS (legacy) Accelerometers in ChromeOS core - Add support for Add Intel Elkhart Lake PCH to Intel LPSS New Functionality: - Provide regulator supply information when registering; madera-core - Additional Device Tree support; lp87565, madera, cros-ec, rohm,bd71837-pmic - Allow over-riding power button press via Device Tree; rohm-bd718x7 - Differentiate between running processors; cros_ec_dev Fix-ups: - Big header file update; cros_ec_commands.h - Split header per-subsystem; rohm-bd718x7 - Remove superfluous code; menelaus, cs5535-mfd, cs47lXX-tables - Trivial; sorting, coding style; intel-lpss-pci - Only remove Power Off functionality if set locally; rk808 - Make use for Power Off Prepare(); rk808 - Fix spelling mistake in header guards; stmfx - Properly free IDA resources - SPDX fixups; cs47lXX-tables, madera - Error path fixups; hi655x-pmic Bug Fixes: - Add missing break in case() statement - Repair undefined behaviour when not initialising variables; arizona-core, madera-core - Fix reference to Device Tree documentation; madera" * tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits) mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk mfd: madera: Fixup SPDX headers mfd: madera: Remove some unused registers and fix some defaults mfd: intel-lpss: Release IDA resources mfd: intel-lpss: Add Intel Elkhart Lake PCH PCI IDs mfd: cs5535-mfd: Remove ifdef OLPC noise mfd: stmfx: Fix macro definition spelling dt-bindings: mfd: Add link to ROHM BD71847 Datasheet MAINAINERS: Swap words in INTEL PMIC MULTIFUNCTION DEVICE DRIVERS mfd: cros_ec_dev: Register cros_ec_accel_legacy driver as a subdevice mfd: rk808: Prepare rk805 for poweroff mfd: rk808: Check pm_power_off pointer mfd: cros_ec: differentiate SCP from EC by feature bit dt-bindings: Add binding for cros-ec-rpmsg mfd: madera: Add Madera core support for CS47L92 mfd: madera: Add Madera core support for CS47L15 mfd: madera: Update DT bindings to add additional CODECs mfd: madera: Add supply mapping for MICVDD mfd: madera: Fix potential uninitialised use of variable mfd: madera: Fix bad reference to pinctrl.txt file ...
174 lines
4 KiB
C
174 lines
4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* cs5535-mfd.c - core MFD driver for CS5535/CS5536 southbridges
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*
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* The CS5535 and CS5536 has an ISA bridge on the PCI bus that is
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* used for accessing GPIOs, MFGPTs, ACPI, etc. Each subdevice has
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* an IO range that's specified in a single BAR. The BAR order is
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* hardcoded in the CS553x specifications.
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*
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* Copyright (c) 2010 Andres Salomon <dilinger@queued.net>
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*/
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#include <linux/kernel.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <asm/olpc.h>
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#define DRV_NAME "cs5535-mfd"
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enum cs5535_mfd_bars {
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SMB_BAR = 0,
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GPIO_BAR = 1,
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MFGPT_BAR = 2,
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PMS_BAR = 4,
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ACPI_BAR = 5,
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NR_BARS,
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};
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static int cs5535_mfd_res_enable(struct platform_device *pdev)
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{
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struct resource *res;
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res = platform_get_resource(pdev, IORESOURCE_IO, 0);
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if (!res) {
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dev_err(&pdev->dev, "can't fetch device resource info\n");
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return -EIO;
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}
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if (!request_region(res->start, resource_size(res), DRV_NAME)) {
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dev_err(&pdev->dev, "can't request region\n");
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return -EIO;
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}
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return 0;
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}
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static int cs5535_mfd_res_disable(struct platform_device *pdev)
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{
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struct resource *res;
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res = platform_get_resource(pdev, IORESOURCE_IO, 0);
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if (!res) {
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dev_err(&pdev->dev, "can't fetch device resource info\n");
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return -EIO;
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}
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release_region(res->start, resource_size(res));
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return 0;
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}
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static struct resource cs5535_mfd_resources[NR_BARS];
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static struct mfd_cell cs5535_mfd_cells[] = {
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{
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.id = SMB_BAR,
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.name = "cs5535-smb",
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.num_resources = 1,
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.resources = &cs5535_mfd_resources[SMB_BAR],
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},
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{
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.id = GPIO_BAR,
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.name = "cs5535-gpio",
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.num_resources = 1,
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.resources = &cs5535_mfd_resources[GPIO_BAR],
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},
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{
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.id = MFGPT_BAR,
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.name = "cs5535-mfgpt",
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.num_resources = 1,
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.resources = &cs5535_mfd_resources[MFGPT_BAR],
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},
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{
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.id = PMS_BAR,
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.name = "cs5535-pms",
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.num_resources = 1,
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.resources = &cs5535_mfd_resources[PMS_BAR],
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.enable = cs5535_mfd_res_enable,
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.disable = cs5535_mfd_res_disable,
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},
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{
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.id = ACPI_BAR,
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.name = "cs5535-acpi",
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.num_resources = 1,
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.resources = &cs5535_mfd_resources[ACPI_BAR],
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.enable = cs5535_mfd_res_enable,
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.disable = cs5535_mfd_res_disable,
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},
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};
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static const char *olpc_acpi_clones[] = {
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"olpc-xo1-pm-acpi",
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"olpc-xo1-sci-acpi"
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};
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static int cs5535_mfd_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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int err, i;
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err = pci_enable_device(pdev);
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if (err)
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return err;
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/* fill in IO range for each cell; subdrivers handle the region */
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for (i = 0; i < ARRAY_SIZE(cs5535_mfd_cells); i++) {
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int bar = cs5535_mfd_cells[i].id;
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struct resource *r = &cs5535_mfd_resources[bar];
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r->flags = IORESOURCE_IO;
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r->start = pci_resource_start(pdev, bar);
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r->end = pci_resource_end(pdev, bar);
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/* id is used for temporarily storing BAR; unset it now */
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cs5535_mfd_cells[i].id = 0;
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}
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err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
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ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
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if (err) {
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dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
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goto err_disable;
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}
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if (machine_is_olpc())
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mfd_clone_cell("cs5535-acpi", olpc_acpi_clones, ARRAY_SIZE(olpc_acpi_clones));
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dev_info(&pdev->dev, "%zu devices registered.\n",
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ARRAY_SIZE(cs5535_mfd_cells));
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return 0;
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err_disable:
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pci_disable_device(pdev);
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return err;
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}
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static void cs5535_mfd_remove(struct pci_dev *pdev)
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{
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mfd_remove_devices(&pdev->dev);
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pci_disable_device(pdev);
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}
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static const struct pci_device_id cs5535_mfd_pci_tbl[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_ISA) },
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{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA) },
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{ 0, }
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};
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MODULE_DEVICE_TABLE(pci, cs5535_mfd_pci_tbl);
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static struct pci_driver cs5535_mfd_driver = {
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.name = DRV_NAME,
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.id_table = cs5535_mfd_pci_tbl,
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.probe = cs5535_mfd_probe,
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.remove = cs5535_mfd_remove,
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};
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module_pci_driver(cs5535_mfd_driver);
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MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>");
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MODULE_DESCRIPTION("MFD driver for CS5535/CS5536 southbridge's ISA PCI device");
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MODULE_LICENSE("GPL");
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