diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/actions/owl-factor.c | 7 | ||||
| -rw-r--r-- | drivers/clk/bcm/clk-bcm2835.c | 138 | ||||
| -rw-r--r-- | drivers/clk/clk-cdce925.c | 34 | ||||
| -rw-r--r-- | drivers/clk/clk.c | 42 |
4 files changed, 193 insertions, 28 deletions
diff --git a/drivers/clk/actions/owl-factor.c b/drivers/clk/actions/owl-factor.c index 317d4a9e112e..f15e2621fa18 100644 --- a/drivers/clk/actions/owl-factor.c +++ b/drivers/clk/actions/owl-factor.c @@ -64,11 +64,10 @@ static unsigned int _get_table_val(const struct clk_factor_table *table, return val; } -static int clk_val_best(struct clk_hw *hw, unsigned long rate, +static int owl_clk_val_best(const struct owl_factor_hw *factor_hw, + struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate) { - struct owl_factor *factor = hw_to_owl_factor(hw); - struct owl_factor_hw *factor_hw = &factor->factor_hw; const struct clk_factor_table *clkt = factor_hw->table; unsigned long parent_rate, try_parent_rate, best = 0, cur_rate; unsigned long parent_rate_saved = *best_parent_rate; @@ -126,7 +125,7 @@ long owl_factor_helper_round_rate(struct owl_clk_common *common, const struct clk_factor_table *clkt = factor_hw->table; unsigned int val, mul = 0, div = 1; - val = clk_val_best(&common->hw, rate, parent_rate); + val = owl_clk_val_best(factor_hw, &common->hw, rate, parent_rate); _get_table_div_mul(clkt, val, &mul, &div); return *parent_rate * mul / div; diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 867ae3c20041..802e488fd3c3 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -31,7 +31,7 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/module.h> -#include <linux/of.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <dt-bindings/clock/bcm2835.h> @@ -114,6 +114,8 @@ #define CM_AVEODIV 0x1bc #define CM_EMMCCTL 0x1c0 #define CM_EMMCDIV 0x1c4 +#define CM_EMMC2CTL 0x1d0 +#define CM_EMMC2DIV 0x1d4 /* General bits for the CM_*CTL regs */ # define CM_ENABLE BIT(4) @@ -289,6 +291,10 @@ #define LOCK_TIMEOUT_NS 100000000 #define BCM2835_MAX_FB_RATE 1750000000u +#define SOC_BCM2835 BIT(0) +#define SOC_BCM2711 BIT(1) +#define SOC_ALL (SOC_BCM2835 | SOC_BCM2711) + /* * Names of clocks used within the driver that need to be replaced * with an external parent's name. This array is in the order that @@ -320,6 +326,10 @@ struct bcm2835_cprman { struct clk_hw_onecell_data onecell; }; +struct cprman_plat_data { + unsigned int soc; +}; + static inline void cprman_write(struct bcm2835_cprman *cprman, u32 reg, u32 val) { writel(CM_PASSWORD | val, cprman->regs + reg); @@ -1451,22 +1461,28 @@ typedef struct clk_hw *(*bcm2835_clk_register)(struct bcm2835_cprman *cprman, const void *data); struct bcm2835_clk_desc { bcm2835_clk_register clk_register; + unsigned int supported; const void *data; }; /* assignment helper macros for different clock types */ -#define _REGISTER(f, ...) { .clk_register = (bcm2835_clk_register)f, \ - .data = __VA_ARGS__ } -#define REGISTER_PLL(...) _REGISTER(&bcm2835_register_pll, \ +#define _REGISTER(f, s, ...) { .clk_register = (bcm2835_clk_register)f, \ + .supported = s, \ + .data = __VA_ARGS__ } +#define REGISTER_PLL(s, ...) _REGISTER(&bcm2835_register_pll, \ + s, \ &(struct bcm2835_pll_data) \ {__VA_ARGS__}) -#define REGISTER_PLL_DIV(...) _REGISTER(&bcm2835_register_pll_divider, \ - &(struct bcm2835_pll_divider_data) \ - {__VA_ARGS__}) -#define REGISTER_CLK(...) _REGISTER(&bcm2835_register_clock, \ +#define REGISTER_PLL_DIV(s, ...) _REGISTER(&bcm2835_register_pll_divider, \ + s, \ + &(struct bcm2835_pll_divider_data) \ + {__VA_ARGS__}) +#define REGISTER_CLK(s, ...) _REGISTER(&bcm2835_register_clock, \ + s, \ &(struct bcm2835_clock_data) \ {__VA_ARGS__}) -#define REGISTER_GATE(...) _REGISTER(&bcm2835_register_gate, \ +#define REGISTER_GATE(s, ...) _REGISTER(&bcm2835_register_gate, \ + s, \ &(struct bcm2835_gate_data) \ {__VA_ARGS__}) @@ -1480,7 +1496,8 @@ static const char *const bcm2835_clock_osc_parents[] = { "testdebug1" }; -#define REGISTER_OSC_CLK(...) REGISTER_CLK( \ +#define REGISTER_OSC_CLK(s, ...) REGISTER_CLK( \ + s, \ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_osc_parents), \ .parents = bcm2835_clock_osc_parents, \ __VA_ARGS__) @@ -1497,7 +1514,8 @@ static const char *const bcm2835_clock_per_parents[] = { "pllh_aux", }; -#define REGISTER_PER_CLK(...) REGISTER_CLK( \ +#define REGISTER_PER_CLK(s, ...) REGISTER_CLK( \ + s, \ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents), \ .parents = bcm2835_clock_per_parents, \ __VA_ARGS__) @@ -1522,7 +1540,8 @@ static const char *const bcm2835_pcm_per_parents[] = { "-", }; -#define REGISTER_PCM_CLK(...) REGISTER_CLK( \ +#define REGISTER_PCM_CLK(s, ...) REGISTER_CLK( \ + s, \ .num_mux_parents = ARRAY_SIZE(bcm2835_pcm_per_parents), \ .parents = bcm2835_pcm_per_parents, \ __VA_ARGS__) @@ -1541,7 +1560,8 @@ static const char *const bcm2835_clock_vpu_parents[] = { "pllc_core2", }; -#define REGISTER_VPU_CLK(...) REGISTER_CLK( \ +#define REGISTER_VPU_CLK(s, ...) REGISTER_CLK( \ + s, \ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents), \ .parents = bcm2835_clock_vpu_parents, \ __VA_ARGS__) @@ -1577,12 +1597,14 @@ static const char *const bcm2835_clock_dsi1_parents[] = { "dsi1_byte_inv", }; -#define REGISTER_DSI0_CLK(...) REGISTER_CLK( \ +#define REGISTER_DSI0_CLK(s, ...) REGISTER_CLK( \ + s, \ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_dsi0_parents), \ .parents = bcm2835_clock_dsi0_parents, \ __VA_ARGS__) -#define REGISTER_DSI1_CLK(...) REGISTER_CLK( \ +#define REGISTER_DSI1_CLK(s, ...) REGISTER_CLK( \ + s, \ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_dsi1_parents), \ .parents = bcm2835_clock_dsi1_parents, \ __VA_ARGS__) @@ -1602,6 +1624,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * AUDIO domain is on. */ [BCM2835_PLLA] = REGISTER_PLL( + SOC_ALL, .name = "plla", .cm_ctrl_reg = CM_PLLA, .a2w_ctrl_reg = A2W_PLLA_CTRL, @@ -1616,6 +1639,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .max_rate = 2400000000u, .max_fb_rate = BCM2835_MAX_FB_RATE), [BCM2835_PLLA_CORE] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plla_core", .source_pll = "plla", .cm_reg = CM_PLLA, @@ -1625,6 +1649,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLA_PER] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plla_per", .source_pll = "plla", .cm_reg = CM_PLLA, @@ -1634,6 +1659,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLA_DSI0] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plla_dsi0", .source_pll = "plla", .cm_reg = CM_PLLA, @@ -1642,6 +1668,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .hold_mask = CM_PLLA_HOLDDSI0, .fixed_divider = 1), [BCM2835_PLLA_CCP2] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plla_ccp2", .source_pll = "plla", .cm_reg = CM_PLLA, @@ -1663,6 +1690,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * AUDIO domain is on. */ [BCM2835_PLLC] = REGISTER_PLL( + SOC_ALL, .name = "pllc", .cm_ctrl_reg = CM_PLLC, .a2w_ctrl_reg = A2W_PLLC_CTRL, @@ -1677,6 +1705,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .max_rate = 3000000000u, .max_fb_rate = BCM2835_MAX_FB_RATE), [BCM2835_PLLC_CORE0] = REGISTER_PLL_DIV( + SOC_ALL, .name = "pllc_core0", .source_pll = "pllc", .cm_reg = CM_PLLC, @@ -1686,6 +1715,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLC_CORE1] = REGISTER_PLL_DIV( + SOC_ALL, .name = "pllc_core1", .source_pll = "pllc", .cm_reg = CM_PLLC, @@ -1695,6 +1725,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLC_CORE2] = REGISTER_PLL_DIV( + SOC_ALL, .name = "pllc_core2", .source_pll = "pllc", .cm_reg = CM_PLLC, @@ -1704,6 +1735,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLC_PER] = REGISTER_PLL_DIV( + SOC_ALL, .name = "pllc_per", .source_pll = "pllc", .cm_reg = CM_PLLC, @@ -1720,6 +1752,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * AUDIO domain is on. */ [BCM2835_PLLD] = REGISTER_PLL( + SOC_ALL, .name = "plld", .cm_ctrl_reg = CM_PLLD, .a2w_ctrl_reg = A2W_PLLD_CTRL, @@ -1734,6 +1767,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .max_rate = 2400000000u, .max_fb_rate = BCM2835_MAX_FB_RATE), [BCM2835_PLLD_CORE] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plld_core", .source_pll = "plld", .cm_reg = CM_PLLD, @@ -1742,7 +1776,13 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .hold_mask = CM_PLLD_HOLDCORE, .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), + /* + * VPU firmware assumes that PLLD_PER isn't disabled by the ARM core. + * Otherwise this could cause firmware lookups. That's why we mark + * it as critical. + */ [BCM2835_PLLD_PER] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plld_per", .source_pll = "plld", .cm_reg = CM_PLLD, @@ -1750,8 +1790,9 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .load_mask = CM_PLLD_LOADPER, .hold_mask = CM_PLLD_HOLDPER, .fixed_divider = 1, - .flags = CLK_SET_RATE_PARENT), + .flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), [BCM2835_PLLD_DSI0] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plld_dsi0", .source_pll = "plld", .cm_reg = CM_PLLD, @@ -1760,6 +1801,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .hold_mask = CM_PLLD_HOLDDSI0, .fixed_divider = 1), [BCM2835_PLLD_DSI1] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plld_dsi1", .source_pll = "plld", .cm_reg = CM_PLLD, @@ -1775,6 +1817,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * It is in the HDMI power domain. */ [BCM2835_PLLH] = REGISTER_PLL( + SOC_BCM2835, "pllh", .cm_ctrl_reg = CM_PLLH, .a2w_ctrl_reg = A2W_PLLH_CTRL, @@ -1789,6 +1832,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .max_rate = 3000000000u, .max_fb_rate = BCM2835_MAX_FB_RATE), [BCM2835_PLLH_RCAL] = REGISTER_PLL_DIV( + SOC_BCM2835, .name = "pllh_rcal", .source_pll = "pllh", .cm_reg = CM_PLLH, @@ -1798,6 +1842,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 10, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLH_AUX] = REGISTER_PLL_DIV( + SOC_BCM2835, .name = "pllh_aux", .source_pll = "pllh", .cm_reg = CM_PLLH, @@ -1807,6 +1852,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLH_PIX] = REGISTER_PLL_DIV( + SOC_BCM2835, .name = "pllh_pix", .source_pll = "pllh", .cm_reg = CM_PLLH, @@ -1822,6 +1868,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* One Time Programmable Memory clock. Maximum 10Mhz. */ [BCM2835_CLOCK_OTP] = REGISTER_OSC_CLK( + SOC_ALL, .name = "otp", .ctl_reg = CM_OTPCTL, .div_reg = CM_OTPDIV, @@ -1833,6 +1880,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * bythe watchdog timer and the camera pulse generator. */ [BCM2835_CLOCK_TIMER] = REGISTER_OSC_CLK( + SOC_ALL, .name = "timer", .ctl_reg = CM_TIMERCTL, .div_reg = CM_TIMERDIV, @@ -1843,12 +1891,14 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * Generally run at 2Mhz, max 5Mhz. */ [BCM2835_CLOCK_TSENS] = REGISTER_OSC_CLK( + SOC_ALL, .name = "tsens", .ctl_reg = CM_TSENSCTL, .div_reg = CM_TSENSDIV, .int_bits = 5, .frac_bits = 0), [BCM2835_CLOCK_TEC] = REGISTER_OSC_CLK( + SOC_ALL, .name = "tec", .ctl_reg = CM_TECCTL, .div_reg = CM_TECDIV, @@ -1857,6 +1907,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* clocks with vpu parent mux */ [BCM2835_CLOCK_H264] = REGISTER_VPU_CLK( + SOC_ALL, .name = "h264", .ctl_reg = CM_H264CTL, .div_reg = CM_H264DIV, @@ -1864,6 +1915,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 1), [BCM2835_CLOCK_ISP] = REGISTER_VPU_CLK( + SOC_ALL, .name = "isp", .ctl_reg = CM_ISPCTL, .div_reg = CM_ISPDIV, @@ -1876,6 +1928,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * in the SDRAM controller can't be used. */ [BCM2835_CLOCK_SDRAM] = REGISTER_VPU_CLK( + SOC_ALL, .name = "sdram", .ctl_reg = CM_SDCCTL, .div_reg = CM_SDCDIV, @@ -1883,6 +1936,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 0, .tcnt_mux = 3), [BCM2835_CLOCK_V3D] = REGISTER_VPU_CLK( + SOC_ALL, .name = "v3d", .ctl_reg = CM_V3DCTL, .div_reg = CM_V3DDIV, @@ -1896,6 +1950,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * in various hardware documentation. */ [BCM2835_CLOCK_VPU] = REGISTER_VPU_CLK( + SOC_ALL, .name = "vpu", .ctl_reg = CM_VPUCTL, .div_reg = CM_VPUDIV, @@ -1907,6 +1962,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* clocks with per parent mux */ [BCM2835_CLOCK_AVEO] = REGISTER_PER_CLK( + SOC_ALL, .name = "aveo", .ctl_reg = CM_AVEOCTL, .div_reg = CM_AVEODIV, @@ -1914,6 +1970,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 0, .tcnt_mux = 38), [BCM2835_CLOCK_CAM0] = REGISTER_PER_CLK( + SOC_ALL, .name = "cam0", .ctl_reg = CM_CAM0CTL, .div_reg = CM_CAM0DIV, @@ -1921,6 +1978,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 14), [BCM2835_CLOCK_CAM1] = REGISTER_PER_CLK( + SOC_ALL, .name = "cam1", .ctl_reg = CM_CAM1CTL, .div_reg = CM_CAM1DIV, @@ -1928,12 +1986,14 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 15), [BCM2835_CLOCK_DFT] = REGISTER_PER_CLK( + SOC_ALL, .name = "dft", .ctl_reg = CM_DFTCTL, .div_reg = CM_DFTDIV, .int_bits = 5, .frac_bits = 0), [BCM2835_CLOCK_DPI] = REGISTER_PER_CLK( + SOC_ALL, .name = "dpi", .ctl_reg = CM_DPICTL, .div_reg = CM_DPIDIV, @@ -1943,6 +2003,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* Arasan EMMC clock */ [BCM2835_CLOCK_EMMC] = REGISTER_PER_CLK( + SOC_ALL, .name = "emmc", .ctl_reg = CM_EMMCCTL, .div_reg = CM_EMMCDIV, @@ -1950,8 +2011,19 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 39), + /* EMMC2 clock (only available for BCM2711) */ + [BCM2711_CLOCK_EMMC2] = REGISTER_PER_CLK( + SOC_BCM2711, + .name = "emmc2", + .ctl_reg = CM_EMMC2CTL, + .div_reg = CM_EMMC2DIV, + .int_bits = 4, + .frac_bits = 8, + .tcnt_mux = 42), + /* General purpose (GPIO) clocks */ [BCM2835_CLOCK_GP0] = REGISTER_PER_CLK( + SOC_ALL, .name = "gp0", .ctl_reg = CM_GP0CTL, .div_reg = CM_GP0DIV, @@ -1960,6 +2032,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .is_mash_clock = true, .tcnt_mux = 20), [BCM2835_CLOCK_GP1] = REGISTER_PER_CLK( + SOC_ALL, .name = "gp1", .ctl_reg = CM_GP1CTL, .div_reg = CM_GP1DIV, @@ -1969,6 +2042,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .is_mash_clock = true, .tcnt_mux = 21), [BCM2835_CLOCK_GP2] = REGISTER_PER_CLK( + SOC_ALL, .name = "gp2", .ctl_reg = CM_GP2CTL, .div_reg = CM_GP2DIV, @@ -1978,6 +2052,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* HDMI state machine */ [BCM2835_CLOCK_HSM] = REGISTER_PER_CLK( + SOC_ALL, .name = "hsm", .ctl_reg = CM_HSMCTL, .div_reg = CM_HSMDIV, @@ -1985,6 +2060,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 22), [BCM2835_CLOCK_PCM] = REGISTER_PCM_CLK( + SOC_ALL, .name = "pcm", .ctl_reg = CM_PCMCTL, .div_reg = CM_PCMDIV, @@ -1994,6 +2070,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .low_jitter = true, .tcnt_mux = 23), [BCM2835_CLOCK_PWM] = REGISTER_PER_CLK( + SOC_ALL, .name = "pwm", .ctl_reg = CM_PWMCTL, .div_reg = CM_PWMDIV, @@ -2002,6 +2079,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .is_mash_clock = true, .tcnt_mux = 24), [BCM2835_CLOCK_SLIM] = REGISTER_PER_CLK( + SOC_ALL, .name = "slim", .ctl_reg = CM_SLIMCTL, .div_reg = CM_SLIMDIV, @@ -2010,6 +2088,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .is_mash_clock = true, .tcnt_mux = 25), [BCM2835_CLOCK_SMI] = REGISTER_PER_CLK( + SOC_ALL, .name = "smi", .ctl_reg = CM_SMICTL, .div_reg = CM_SMIDIV, @@ -2017,6 +2096,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 27), [BCM2835_CLOCK_UART] = REGISTER_PER_CLK( + SOC_ALL, .name = "uart", .ctl_reg = CM_UARTCTL, .div_reg = CM_UARTDIV, @@ -2026,6 +2106,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* TV encoder clock. Only operating frequency is 108Mhz. */ [BCM2835_CLOCK_VEC] = REGISTER_PER_CLK( + SOC_ALL, .name = "vec", .ctl_reg = CM_VECCTL, .div_reg = CM_VECDIV, @@ -2040,6 +2121,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* dsi clocks */ [BCM2835_CLOCK_DSI0E] = REGISTER_PER_CLK( + SOC_ALL, .name = "dsi0e", .ctl_reg = CM_DSI0ECTL, .div_reg = CM_DSI0EDIV, @@ -2047,6 +2129,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 18), [BCM2835_CLOCK_DSI1E] = REGISTER_PER_CLK( + SOC_ALL, .name = "dsi1e", .ctl_reg = CM_DSI1ECTL, .div_reg = CM_DSI1EDIV, @@ -2054,6 +2137,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 8, .tcnt_mux = 19), [BCM2835_CLOCK_DSI0P] = REGISTER_DSI0_CLK( + SOC_ALL, .name = "dsi0p", .ctl_reg = CM_DSI0PCTL, .div_reg = CM_DSI0PDIV, @@ -2061,6 +2145,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .frac_bits = 0, .tcnt_mux = 12), [BCM2835_CLOCK_DSI1P] = REGISTER_DSI1_CLK( + SOC_ALL, .name = "dsi1p", .ctl_reg = CM_DSI1PCTL, .div_reg = CM_DSI1PDIV, @@ -2077,6 +2162,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * non-stop vpu clock. */ [BCM2835_CLOCK_PERI_IMAGE] = REGISTER_GATE( + SOC_ALL, .name = "peri_image", .parent = "vpu", .ctl_reg = CM_PERIICTL), @@ -2109,9 +2195,14 @@ static int bcm2835_clk_probe(struct platform_device *pdev) struct resource *res; const struct bcm2835_clk_desc *desc; const size_t asize = ARRAY_SIZE(clk_desc_array); + const struct cprman_plat_data *pdata; size_t i; int ret; + pdata = of_device_get_match_data(&pdev->dev); + if (!pdata) + return -ENODEV; + cprman = devm_kzalloc(dev, struct_size(cprman, onecell.hws, asize), GFP_KERNEL); @@ -2147,8 +2238,10 @@ static int bcm2835_clk_probe(struct platform_device *pdev) for (i = 0; i < asize; i++) { desc = &clk_desc_array[i]; - if (desc->clk_register && desc->data) + if (desc->clk_register && desc->data && + (desc->supported & pdata->soc)) { hws[i] = desc->clk_register(cprman, desc->data); + } } ret = bcm2835_mark_sdc_parent_critical(hws[BCM2835_CLOCK_SDRAM]->clk); @@ -2159,8 +2252,17 @@ static int bcm2835_clk_probe(struct platform_device *pdev) &cprman->onecell); } +static const struct cprman_plat_data cprman_bcm2835_plat_data = { + .soc = SOC_BCM2835, +}; + +static const struct cprman_plat_data cprman_bcm2711_plat_data = { + .soc = SOC_BCM2711, +}; + static const struct of_device_id bcm2835_clk_of_match[] = { - { .compatible = "brcm,bcm2835-cprman", }, + { .compatible = "brcm,bcm2835-cprman", .data = &cprman_bcm2835_plat_data }, + { .compatible = "brcm,bcm2711-cprman", .data = &cprman_bcm2711_plat_data }, {} }; MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match); diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c index 23c9326ea48c..308b353815e1 100644 --- a/drivers/clk/clk-cdce925.c +++ b/drivers/clk/clk-cdce925.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <linux/i2c.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/gcd.h> @@ -602,6 +603,30 @@ of_clk_cdce925_get(struct of_phandle_args *clkspec, void *_data) return &data->clk[idx].hw; } +static void cdce925_regulator_disable(void *regulator) +{ + regulator_disable(regulator); +} + +static int cdce925_regulator_enable(struct device *dev, const char *name) +{ + struct regulator *regulator; + int err; + + regulator = devm_regulator_get(dev, name); + if (IS_ERR(regulator)) + return PTR_ERR(regulator); + + err = regulator_enable(regulator); + if (err) { + dev_err(dev, "Failed to enable %s: %d\n", name, err); + return err; + } + + return devm_add_action_or_reset(dev, cdce925_regulator_disable, + regulator); +} + /* The CDCE925 uses a funky way to read/write registers. Bulk mode is * just weird, so just use the single byte mode exclusively. */ static struct regmap_bus regmap_cdce925_bus = { @@ -630,6 +655,15 @@ static int cdce925_probe(struct i2c_client *client, }; dev_dbg(&client->dev, "%s\n", __func__); + + err = cdce925_regulator_enable(&client->dev, "vdd"); + if (err) + return err; + + err = cdce925_regulator_enable(&client->dev, "vddout"); + if (err) + return err; + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index e7300e1094b9..498cae518147 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -37,6 +37,12 @@ static HLIST_HEAD(clk_root_list); static HLIST_HEAD(clk_orphan_list); static LIST_HEAD(clk_notifier_list); +static struct hlist_head *all_lists[] = { + &clk_root_list, + &clk_orphan_list, + NULL, +}; + /*** private data structures ***/ struct clk_parent_map { @@ -2841,12 +2847,6 @@ static int inited = 0; static DEFINE_MUTEX(clk_debug_lock); static HLIST_HEAD(clk_debug_list); -static struct hlist_head *all_lists[] = { - &clk_root_list, - &clk_orphan_list, - NULL, -}; - static struct hlist_head *orphan_list[] = { &clk_orphan_list, NULL, @@ -3777,6 +3777,34 @@ static const struct clk_ops clk_nodrv_ops = { .set_parent = clk_nodrv_set_parent, }; +static void clk_core_evict_parent_cache_subtree(struct clk_core *root, + struct clk_core *target) +{ + int i; + struct clk_core *child; + + for (i = 0; i < root->num_parents; i++) + if (root->parents[i].core == target) + root->parents[i].core = NULL; + + hlist_for_each_entry(child, &root->children, child_node) + clk_core_evict_parent_cache_subtree(child, target); +} + +/* Remove this clk from all parent caches */ +static void clk_core_evict_parent_cache(struct clk_core *core) +{ + struct hlist_head **lists; + struct clk_core *root; + + lockdep_assert_held(&prepare_lock); + + for (lists = all_lists; *lists; lists++) + hlist_for_each_entry(root, *lists, child_node) + clk_core_evict_parent_cache_subtree(root, core); + +} + /** * clk_unregister - unregister a currently registered clock * @clk: clock to unregister @@ -3815,6 +3843,8 @@ void clk_unregister(struct clk *clk) clk_core_set_parent_nolock(child, NULL); } + clk_core_evict_parent_cache(clk->core); + hlist_del_init(&clk->core->child_node); if (clk->core->prepare_count) |