diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/clk-en7523.c | 9 | ||||
| -rw-r--r-- | drivers/clk/clk.c | 2 | ||||
| -rw-r--r-- | drivers/clk/meson/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/clk/meson/axg-audio.c | 109 |
4 files changed, 107 insertions, 15 deletions
diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c index e52c5460e927..495c0d607c7d 100644 --- a/drivers/clk/clk-en7523.c +++ b/drivers/clk/clk-en7523.c @@ -87,6 +87,7 @@ static const u32 slic_base[] = { 100000000, 3125000 }; static const u32 npu_base[] = { 333000000, 400000000, 500000000 }; /* EN7581 */ static const u32 emi7581_base[] = { 540000000, 480000000, 400000000, 300000000 }; +static const u32 bus7581_base[] = { 600000000, 540000000 }; static const u32 npu7581_base[] = { 800000000, 750000000, 720000000, 600000000 }; static const u32 crypto_base[] = { 540000000, 480000000 }; @@ -222,8 +223,8 @@ static const struct en_clk_desc en7581_base_clks[] = { .base_reg = REG_BUS_CLK_DIV_SEL, .base_bits = 1, .base_shift = 8, - .base_values = bus_base, - .n_base_values = ARRAY_SIZE(bus_base), + .base_values = bus7581_base, + .n_base_values = ARRAY_SIZE(bus7581_base), .div_bits = 3, .div_shift = 0, @@ -503,6 +504,8 @@ static void en7523_register_clocks(struct device *dev, struct clk_hw_onecell_dat u32 rate; int i; + clk_data->num = EN7523_NUM_CLOCKS; + for (i = 0; i < ARRAY_SIZE(en7523_base_clks); i++) { const struct en_clk_desc *desc = &en7523_base_clks[i]; u32 reg = desc->div_reg ? desc->div_reg : desc->base_reg; @@ -524,8 +527,6 @@ static void en7523_register_clocks(struct device *dev, struct clk_hw_onecell_dat hw = en7523_register_pcie_clk(dev, np_base); clk_data->hws[EN7523_CLK_PCIE] = hw; - - clk_data->num = EN7523_NUM_CLOCKS; } static int en7523_clk_hw_init(struct platform_device *pdev, diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index bdc6e5b90da5..9b45fa005030 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2530,7 +2530,7 @@ static int clk_core_set_rate_nolock(struct clk_core *core, rate = clk_core_req_round_rate_nolock(core, req_rate); /* bail early if nothing to do */ - if (rate == clk_core_get_rate_recalc(core)) + if (rate == clk_core_get_rate_nolock(core)) return 0; /* fail on a direct rate set of a protected provider */ diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index febb5d7348ff..be2e3a5f8336 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -106,7 +106,7 @@ config COMMON_CLK_AXG_AUDIO select COMMON_CLK_MESON_SCLK_DIV select COMMON_CLK_MESON_CLKC_UTILS select REGMAP_MMIO - depends on RESET_MESON_AUX + select RESET_CONTROLLER help Support for the audio clock controller on AmLogic A113D devices, aka axg, Say Y if you want audio subsystem to work. diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c index 7a3460804424..9df627b142f8 100644 --- a/drivers/clk/meson/axg-audio.c +++ b/drivers/clk/meson/axg-audio.c @@ -15,8 +15,6 @@ #include <linux/reset-controller.h> #include <linux/slab.h> -#include <soc/amlogic/reset-meson-aux.h> - #include "meson-clkc-utils.h" #include "axg-audio.h" #include "clk-regmap.h" @@ -1680,6 +1678,84 @@ static struct clk_regmap *const sm1_clk_regmaps[] = { &sm1_earcrx_dmac_clk, }; +struct axg_audio_reset_data { + struct reset_controller_dev rstc; + struct regmap *map; + unsigned int offset; +}; + +static void axg_audio_reset_reg_and_bit(struct axg_audio_reset_data *rst, + unsigned long id, + unsigned int *reg, + unsigned int *bit) +{ + unsigned int stride = regmap_get_reg_stride(rst->map); + + *reg = (id / (stride * BITS_PER_BYTE)) * stride; + *reg += rst->offset; + *bit = id % (stride * BITS_PER_BYTE); +} + +static int axg_audio_reset_update(struct reset_controller_dev *rcdev, + unsigned long id, bool assert) +{ + struct axg_audio_reset_data *rst = + container_of(rcdev, struct axg_audio_reset_data, rstc); + unsigned int offset, bit; + + axg_audio_reset_reg_and_bit(rst, id, &offset, &bit); + + regmap_update_bits(rst->map, offset, BIT(bit), + assert ? BIT(bit) : 0); + + return 0; +} + +static int axg_audio_reset_status(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct axg_audio_reset_data *rst = + container_of(rcdev, struct axg_audio_reset_data, rstc); + unsigned int val, offset, bit; + + axg_audio_reset_reg_and_bit(rst, id, &offset, &bit); + + regmap_read(rst->map, offset, &val); + + return !!(val & BIT(bit)); +} + +static int axg_audio_reset_assert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + return axg_audio_reset_update(rcdev, id, true); +} + +static int axg_audio_reset_deassert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + return axg_audio_reset_update(rcdev, id, false); +} + +static int axg_audio_reset_toggle(struct reset_controller_dev *rcdev, + unsigned long id) +{ + int ret; + + ret = axg_audio_reset_assert(rcdev, id); + if (ret) + return ret; + + return axg_audio_reset_deassert(rcdev, id); +} + +static const struct reset_control_ops axg_audio_rstc_ops = { + .assert = axg_audio_reset_assert, + .deassert = axg_audio_reset_deassert, + .reset = axg_audio_reset_toggle, + .status = axg_audio_reset_status, +}; + static struct regmap_config axg_audio_regmap_cfg = { .reg_bits = 32, .val_bits = 32, @@ -1690,14 +1766,16 @@ struct audioclk_data { struct clk_regmap *const *regmap_clks; unsigned int regmap_clk_num; struct meson_clk_hw_data hw_clks; + unsigned int reset_offset; + unsigned int reset_num; unsigned int max_register; - const char *rst_drvname; }; static int axg_audio_clkc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; const struct audioclk_data *data; + struct axg_audio_reset_data *rst; struct regmap *map; void __iomem *regs; struct clk_hw *hw; @@ -1756,11 +1834,22 @@ static int axg_audio_clkc_probe(struct platform_device *pdev) if (ret) return ret; - /* Register auxiliary reset driver when applicable */ - if (data->rst_drvname) - ret = devm_meson_rst_aux_register(dev, map, data->rst_drvname); + /* Stop here if there is no reset */ + if (!data->reset_num) + return 0; + + rst = devm_kzalloc(dev, sizeof(*rst), GFP_KERNEL); + if (!rst) + return -ENOMEM; + + rst->map = map; + rst->offset = data->reset_offset; + rst->rstc.nr_resets = data->reset_num; + rst->rstc.ops = &axg_audio_rstc_ops; + rst->rstc.of_node = dev->of_node; + rst->rstc.owner = THIS_MODULE; - return ret; + return devm_reset_controller_register(dev, &rst->rstc); } static const struct audioclk_data axg_audioclk_data = { @@ -1780,8 +1869,9 @@ static const struct audioclk_data g12a_audioclk_data = { .hws = g12a_audio_hw_clks, .num = ARRAY_SIZE(g12a_audio_hw_clks), }, + .reset_offset = AUDIO_SW_RESET, + .reset_num = 26, .max_register = AUDIO_CLK_SPDIFOUT_B_CTRL, - .rst_drvname = "rst-g12a", }; static const struct audioclk_data sm1_audioclk_data = { @@ -1791,8 +1881,9 @@ static const struct audioclk_data sm1_audioclk_data = { .hws = sm1_audio_hw_clks, .num = ARRAY_SIZE(sm1_audio_hw_clks), }, + .reset_offset = AUDIO_SM1_SW_RESET0, + .reset_num = 39, .max_register = AUDIO_EARCRX_DMAC_CLK_CTRL, - .rst_drvname = "rst-sm1", }; static const struct of_device_id clkc_match_table[] = { |