![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 ...
212 lines
5 KiB
C
212 lines
5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Clkout driver for Rockchip RK808
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*
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* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
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*
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* Author:Chris Zhong <zyw@rock-chips.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/rk808.h>
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#include <linux/i2c.h>
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struct rk808_clkout {
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struct rk808 *rk808;
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struct clk_hw clkout1_hw;
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struct clk_hw clkout2_hw;
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};
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static unsigned long rk808_clkout_recalc_rate(struct clk_hw *hw,
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unsigned long parent_rate)
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{
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return 32768;
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}
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static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
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{
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struct rk808_clkout *rk808_clkout = container_of(hw,
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struct rk808_clkout,
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clkout2_hw);
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struct rk808 *rk808 = rk808_clkout->rk808;
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return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
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CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
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}
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static int rk808_clkout2_prepare(struct clk_hw *hw)
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{
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return rk808_clkout2_enable(hw, true);
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}
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static void rk808_clkout2_unprepare(struct clk_hw *hw)
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{
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rk808_clkout2_enable(hw, false);
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}
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static int rk808_clkout2_is_prepared(struct clk_hw *hw)
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{
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struct rk808_clkout *rk808_clkout = container_of(hw,
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struct rk808_clkout,
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clkout2_hw);
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struct rk808 *rk808 = rk808_clkout->rk808;
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uint32_t val;
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int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
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if (ret < 0)
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return ret;
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return (val & CLK32KOUT2_EN) ? 1 : 0;
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}
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static const struct clk_ops rk808_clkout1_ops = {
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.recalc_rate = rk808_clkout_recalc_rate,
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};
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static const struct clk_ops rk808_clkout2_ops = {
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.prepare = rk808_clkout2_prepare,
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.unprepare = rk808_clkout2_unprepare,
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.is_prepared = rk808_clkout2_is_prepared,
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.recalc_rate = rk808_clkout_recalc_rate,
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};
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static struct clk_hw *
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of_clk_rk808_get(struct of_phandle_args *clkspec, void *data)
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{
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struct rk808_clkout *rk808_clkout = data;
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unsigned int idx = clkspec->args[0];
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if (idx >= 2) {
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pr_err("%s: invalid index %u\n", __func__, idx);
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return ERR_PTR(-EINVAL);
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}
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return idx ? &rk808_clkout->clkout2_hw : &rk808_clkout->clkout1_hw;
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}
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static int rk817_clkout2_enable(struct clk_hw *hw, bool enable)
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{
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struct rk808_clkout *rk808_clkout = container_of(hw,
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struct rk808_clkout,
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clkout2_hw);
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struct rk808 *rk808 = rk808_clkout->rk808;
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return regmap_update_bits(rk808->regmap, RK817_SYS_CFG(1),
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RK817_CLK32KOUT2_EN,
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enable ? RK817_CLK32KOUT2_EN : 0);
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}
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static int rk817_clkout2_prepare(struct clk_hw *hw)
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{
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return rk817_clkout2_enable(hw, true);
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}
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static void rk817_clkout2_unprepare(struct clk_hw *hw)
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{
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rk817_clkout2_enable(hw, false);
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}
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static int rk817_clkout2_is_prepared(struct clk_hw *hw)
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{
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struct rk808_clkout *rk808_clkout = container_of(hw,
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struct rk808_clkout,
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clkout2_hw);
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struct rk808 *rk808 = rk808_clkout->rk808;
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unsigned int val;
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int ret = regmap_read(rk808->regmap, RK817_SYS_CFG(1), &val);
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if (ret < 0)
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return 0;
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return (val & RK817_CLK32KOUT2_EN) ? 1 : 0;
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}
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static const struct clk_ops rk817_clkout2_ops = {
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.prepare = rk817_clkout2_prepare,
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.unprepare = rk817_clkout2_unprepare,
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.is_prepared = rk817_clkout2_is_prepared,
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.recalc_rate = rk808_clkout_recalc_rate,
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};
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static const struct clk_ops *rkpmic_get_ops(long variant)
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{
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switch (variant) {
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case RK809_ID:
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case RK817_ID:
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return &rk817_clkout2_ops;
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/*
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* For the default case, it match the following PMIC type.
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* RK805_ID
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* RK808_ID
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* RK818_ID
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*/
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default:
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return &rk808_clkout2_ops;
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}
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}
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static int rk808_clkout_probe(struct platform_device *pdev)
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{
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struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
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struct i2c_client *client = rk808->i2c;
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struct device_node *node = client->dev.of_node;
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struct clk_init_data init = {};
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struct rk808_clkout *rk808_clkout;
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int ret;
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rk808_clkout = devm_kzalloc(&client->dev,
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sizeof(*rk808_clkout), GFP_KERNEL);
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if (!rk808_clkout)
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return -ENOMEM;
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rk808_clkout->rk808 = rk808;
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init.parent_names = NULL;
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init.num_parents = 0;
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init.name = "rk808-clkout1";
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init.ops = &rk808_clkout1_ops;
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rk808_clkout->clkout1_hw.init = &init;
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/* optional override of the clockname */
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of_property_read_string_index(node, "clock-output-names",
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0, &init.name);
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ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout1_hw);
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if (ret)
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return ret;
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init.name = "rk808-clkout2";
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init.ops = rkpmic_get_ops(rk808->variant);
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rk808_clkout->clkout2_hw.init = &init;
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/* optional override of the clockname */
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of_property_read_string_index(node, "clock-output-names",
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1, &init.name);
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ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout2_hw);
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if (ret)
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return ret;
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return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_rk808_get,
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rk808_clkout);
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}
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static struct platform_driver rk808_clkout_driver = {
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.probe = rk808_clkout_probe,
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.driver = {
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.name = "rk808-clkout",
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},
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};
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module_platform_driver(rk808_clkout_driver);
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MODULE_DESCRIPTION("Clkout driver for the rk808 series PMICs");
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MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:rk808-clkout");
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