| /linux/drivers/mfd/ |
| H A D | intel_quark_i2c_gpio.c | 39 struct clk *i2c_clk; member
164 struct clk *i2c_clk; in intel_quark_register_i2c_clk() local
166 i2c_clk = clk_register_fixed_rate(dev, in intel_quark_register_i2c_clk()
169 if (IS_ERR(i2c_clk)) in intel_quark_register_i2c_clk()
170 return PTR_ERR(i2c_clk); in intel_quark_register_i2c_clk()
172 quark_mfd->i2c_clk = i2c_clk; in intel_quark_register_i2c_clk()
173 quark_mfd->i2c_clk_lookup = clkdev_create(i2c_clk, NULL, in intel_quark_register_i2c_clk()
177 clk_unregister(quark_mfd->i2c_clk); in intel_quark_register_i2c_clk()
193 clk_unregister(quark_mfd->i2c_clk); in intel_quark_unregister_i2c_clk()
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| /linux/drivers/i2c/busses/ |
| H A D | i2c-microchip-corei2c.c | 97 * @i2c_clk: clock reference for i2c input clock
114 struct clk *i2c_clk; member
197 u32 clk_rate = clk_get_rate(idev->i2c_clk); in mchp_corei2c_init()
556 idev->i2c_clk = devm_clk_get(&pdev->dev, NULL); in mchp_corei2c_probe()
557 if (IS_ERR(idev->i2c_clk)) in mchp_corei2c_probe()
558 return dev_err_probe(&pdev->dev, PTR_ERR(idev->i2c_clk), in mchp_corei2c_probe()
587 ret = clk_prepare_enable(idev->i2c_clk); in mchp_corei2c_probe()
594 clk_disable_unprepare(idev->i2c_clk); in mchp_corei2c_probe()
611 clk_disable_unprepare(idev->i2c_clk); in mchp_corei2c_probe()
624 clk_disable_unprepare(idev->i2c_clk); in mchp_corei2c_remove()
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| H A D | i2c-jz4780.c | 256 int i2c_clk = i2c->speed; in jz4780_i2c_set_speed() local
262 * 1 JZ4780_I2C cycle equals to cnt_period PCLK(i2c_clk) in jz4780_i2c_set_speed()
266 cnt_period = dev_clk_khz / i2c_clk; in jz4780_i2c_set_speed()
268 if (i2c_clk <= 100) in jz4780_i2c_set_speed()
282 if (i2c_clk <= 100) { in jz4780_i2c_set_speed()
311 * 1i2c_clk = 10^6 / dev_clk_khz in jz4780_i2c_set_speed()
312 * on FPGA, dev_clk_khz = 12000, so 1i2c_clk = 1000/12 = 83ns in jz4780_i2c_set_speed()
313 * on Pisces(1008M), dev_clk_khz=126000, so 1i2c_clk = 1000 / 126 = 8ns in jz4780_i2c_set_speed()
315 * The actual hold time is (SDAHD + 1) * (i2c_clk period). in jz4780_i2c_set_speed()
320 if (i2c_clk <= 100) { /* standard mode */ in jz4780_i2c_set_speed()
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| H A D | i2c-axxia.c | 131 * @i2c_clk: clock reference for i2c input clock
147 struct clk *i2c_clk; member
180 u32 divisor = clk_get_rate(idev->i2c_clk) / idev->bus_clk_rate; in axxia_i2c_init()
181 u32 clk_mhz = clk_get_rate(idev->i2c_clk) / 1000000; in axxia_i2c_init()
739 idev->i2c_clk = devm_clk_get(&pdev->dev, "i2c"); in axxia_i2c_probe()
740 if (IS_ERR(idev->i2c_clk)) { in axxia_i2c_probe()
742 return PTR_ERR(idev->i2c_clk); in axxia_i2c_probe()
753 ret = clk_prepare_enable(idev->i2c_clk); in axxia_i2c_probe()
790 clk_disable_unprepare(idev->i2c_clk); in axxia_i2c_probe()
798 clk_disable_unprepare(idev->i2c_clk); in axxia_i2c_remove()
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| H A D | i2c-xiic.c | 78 * @i2c_clk: I2C SCL frequency
103 unsigned int i2c_clk; member
412 "%s entry, i2c->input_clk: %ld, i2c->i2c_clk: %d\n", in xiic_setclk()
413 __func__, i2c->input_clk, i2c->i2c_clk); in xiic_setclk()
416 if (!i2c->i2c_clk || !i2c->input_clk) in xiic_setclk()
421 switch (i2c->i2c_clk) { in xiic_setclk()
443 /* THIGH - Depends on SCL clock frequency(i2c_clk) as below */ in xiic_setclk()
444 reg_val = (DIV_ROUND_UP(i2c->input_clk, 2 * i2c->i2c_clk)) - 7; in xiic_setclk()
1481 &i2c->i2c_clk); in xiic_i2c_probe()
1483 if (ret || i2c->i2c_clk > I2C_MAX_FAST_MODE_PLUS_FREQ) in xiic_i2c_probe()
[all …]
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| H A D | i2c-cadence.c | 179 * @i2c_clk: Maximum I2C clock speed
209 unsigned int i2c_clk; member
961 msg_timeout = msecs_to_jiffies((1000 * msg->len * BITS_PER_BYTE) / id->i2c_clk); in cdns_i2c_process_msg()
1322 unsigned long fscl = id->i2c_clk; in cdns_i2c_setclk()
1370 unsigned long fscl = id->i2c_clk; in cdns_i2c_clk_notifier_cb()
1569 &id->i2c_clk); in cdns_i2c_probe()
1570 if (ret || (id->i2c_clk > I2C_MAX_FAST_MODE_FREQ)) in cdns_i2c_probe()
1571 id->i2c_clk = I2C_MAX_STANDARD_MODE_FREQ; in cdns_i2c_probe()
1587 dev_err(&pdev->dev, "invalid SCL clock: %u Hz\n", id->i2c_clk); in cdns_i2c_probe()
1605 id->i2c_clk / 1000, (unsigned long)r_mem->start, irq); in cdns_i2c_probe()
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| H A D | i2c-nomadik.c | 401 u32 i2c_clk, div; in setup_i2c_controller() local
411 i2c_clk = clk_get_rate(priv->clk); in setup_i2c_controller()
425 ns = DIV_ROUND_UP_ULL(1000000000ULL, i2c_clk); in setup_i2c_controller()
461 brcr = DIV_ROUND_UP(i2c_clk, priv->clk_freq * div); in setup_i2c_controller()
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| H A D | i2c-npcm7xx.c | 2499 struct clk *i2c_clk; in npcm_i2c_probe_bus() local
2517 i2c_clk = devm_clk_get(&pdev->dev, NULL); in npcm_i2c_probe_bus()
2518 if (IS_ERR(i2c_clk)) in npcm_i2c_probe_bus()
2519 return PTR_ERR(i2c_clk); in npcm_i2c_probe_bus()
2520 bus->apb_clk = clk_get_rate(i2c_clk); in npcm_i2c_probe_bus()
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| H A D | i2c-imx.c | 672 dev_dbg(&i2c_imx->adapter.dev, "I2C_CLK=%d, REQ DIV=%d\n", in i2c_imx_set_clk()
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| /linux/drivers/staging/nvec/ |
| H A D | nvec.h | 109 * @i2c_clk: The clock of the I2C device
139 struct clk *i2c_clk; member
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| /linux/Documentation/devicetree/bindings/i2c/ |
| H A D | socionext,uniphier-i2c.yaml | 53 clocks = <&i2c_clk>;
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| H A D | socionext,uniphier-fi2c.yaml | 53 clocks = <&i2c_clk>;
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| H A D | st,nomadik-i2c.yaml | 148 clocks = <&i2c_ser_clk>, <&i2c_clk>;
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| /linux/drivers/clk/tegra/ |
| H A D | clk-dfll.c | 272 struct clk *i2c_clk; member
407 ret = clk_enable(td->i2c_clk); in tegra_dfll_runtime_resume()
432 clk_disable(td->i2c_clk); in tegra_dfll_runtime_suspend()
1438 td->i2c_clk = devm_clk_get(td->dev, "i2c"); in dfll_init_clks()
1439 if (IS_ERR(td->i2c_clk)) { in dfll_init_clks()
1441 return PTR_ERR(td->i2c_clk); in dfll_init_clks()
1443 td->i2c_clk_rate = clk_get_rate(td->i2c_clk); in dfll_init_clks()
1483 ret = clk_prepare(td->i2c_clk); in dfll_init()
1485 dev_err(td->dev, "failed to prepare i2c_clk\n"); in dfll_init()
2101 clk_unprepare(td->i2c_clk); in tegra_dfll_unregister()
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| /linux/arch/arm/boot/dts/nxp/imx/ |
| H A D | imx6dl-qmx6.dtsi | 399 MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1 /* Q7[66] I2C_CLK */
406 MX6QDL_PAD_EIM_D21__GPIO3_IO21 0x1b0b0 /* Q7[66] I2C_CLK */
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| /linux/drivers/clk/spear/ |
| H A D | spear6xx_clock.c | 299 clk = clk_register_gate(NULL, "i2c_clk", "ahb_clk", 0, PERIP1_CLK_ENB, in spear6xx_clk_init()
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| /linux/drivers/ptp/ |
| H A D | ptp_ocp.c | 360 struct clk_hw *i2c_clk; member
2013 bp->i2c_clk = clk; in ptp_ocp_register_i2c()
4573 if (bp->i2c_clk) in ptp_ocp_detach()
4574 clk_hw_unregister_fixed_rate(bp->i2c_clk); in ptp_ocp_detach()
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