diff options
Diffstat (limited to 'drivers/pinctrl/tegra/pinctrl-tegra20.c')
| -rw-r--r-- | drivers/pinctrl/tegra/pinctrl-tegra20.c | 68 |
1 files changed, 49 insertions, 19 deletions
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra20.c b/drivers/pinctrl/tegra/pinctrl-tegra20.c index 7e38ee9bae78..1a1758fd7def 100644 --- a/drivers/pinctrl/tegra/pinctrl-tegra20.c +++ b/drivers/pinctrl/tegra/pinctrl-tegra20.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Pinctrl data for the NVIDIA Tegra20 pinmux * @@ -8,17 +9,9 @@ * Derived from code: * Copyright (C) 2010 Google, Inc. * Copyright (C) 2010 NVIDIA Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ +#include <linux/clk-provider.h> #include <linux/init.h> #include <linux/of.h> #include <linux/platform_device.h> @@ -1896,12 +1889,9 @@ enum tegra_mux { TEGRA_MUX_XIO, }; -#define FUNCTION(fname) \ - { \ - .name = #fname, \ - } +#define FUNCTION(fname) #fname -static struct tegra_function tegra20_functions[] = { +static const char * const tegra20_functions[] = { FUNCTION(ahb_clk), FUNCTION(apb_clk), FUNCTION(audio_sync), @@ -1996,13 +1986,13 @@ static struct tegra_function tegra20_functions[] = { .tri_reg = ((tri_r) - TRISTATE_REG_A), \ .tri_bank = 0, \ .tri_bit = tri_b, \ - .parked_bit = -1, \ .einput_bit = -1, \ .odrain_bit = -1, \ .lock_bit = -1, \ .ioreset_bit = -1, \ .rcv_sel_bit = -1, \ .drv_reg = -1, \ + .parked_bitmask = 0, \ } /* Pin groups with only pull up and pull down control */ @@ -2016,7 +2006,7 @@ static struct tegra_function tegra20_functions[] = { .pupd_bank = 2, \ .pupd_bit = pupd_b, \ .drv_reg = -1, \ - .parked_bit = -1, \ + .parked_bitmask = 0, \ } /* Pin groups for drive strength registers (configurable version) */ @@ -2032,7 +2022,7 @@ static struct tegra_function tegra20_functions[] = { .tri_reg = -1, \ .drv_reg = ((r) - PINGROUP_REG_A), \ .drv_bank = 3, \ - .parked_bit = -1, \ + .parked_bitmask = 0, \ .hsm_bit = hsm_b, \ .schmitt_bit = schmitt_b, \ .lpmd_bit = lpmd_b, \ @@ -2220,6 +2210,7 @@ static const struct tegra_pingroup tegra20_groups[] = { static const struct tegra_pinctrl_soc_data tegra20_pinctrl = { .ngpios = NUM_GPIOS, + .gpio_compatible = "nvidia,tegra20-gpio", .pins = tegra20_pins, .npins = ARRAY_SIZE(tegra20_pins), .functions = tegra20_functions, @@ -2231,9 +2222,43 @@ static const struct tegra_pinctrl_soc_data tegra20_pinctrl = { .drvtype_in_mux = false, }; +static const char * const cdev1_parents[] = { + "dev1_osc_div", "pll_a_out0", "pll_m_out1", "audio", +}; + +static const char * const cdev2_parents[] = { + "dev2_osc_div", "hclk", "pclk", "pll_p_out4", +}; + +static const char * const csus_parents[] = { + "pll_c_out1", "pll_p_out2", "pll_p_out3", "vi_sensor", +}; + +static void tegra20_pinctrl_register_clock_muxes(struct platform_device *pdev) +{ + struct tegra_pmx *pmx = platform_get_drvdata(pdev); + + clk_register_mux(NULL, "cdev1_mux", cdev1_parents, 4, 0, + pmx->regs[1] + 0x8, 2, 2, CLK_MUX_READ_ONLY, NULL); + + clk_register_mux(NULL, "cdev2_mux", cdev2_parents, 4, 0, + pmx->regs[1] + 0x8, 4, 2, CLK_MUX_READ_ONLY, NULL); + + clk_register_mux(NULL, "csus_mux", csus_parents, 4, 0, + pmx->regs[1] + 0x8, 6, 2, CLK_MUX_READ_ONLY, NULL); +} + static int tegra20_pinctrl_probe(struct platform_device *pdev) { - return tegra_pinctrl_probe(pdev, &tegra20_pinctrl); + int err; + + err = tegra_pinctrl_probe(pdev, &tegra20_pinctrl); + if (err) + return err; + + tegra20_pinctrl_register_clock_muxes(pdev); + + return 0; } static const struct of_device_id tegra20_pinctrl_of_match[] = { @@ -2248,4 +2273,9 @@ static struct platform_driver tegra20_pinctrl_driver = { }, .probe = tegra20_pinctrl_probe, }; -builtin_platform_driver(tegra20_pinctrl_driver); + +static int __init tegra20_pinctrl_init(void) +{ + return platform_driver_register(&tegra20_pinctrl_driver); +} +arch_initcall(tegra20_pinctrl_init); |