| Message ID | 1563774880-8061-8-git-send-email-wahrenst@gmx.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: Add minimal Raspberry Pi 4 support | expand |
On 22/07/2019 07:54, Stefan Wahren wrote: > In order to support SoC specific clocks (e.g. emmc2 for BCM2711), we > extend the description with a SoC support flag. This approach avoids long > and mostly redundant lists of clock IDs. > > Suggested-by: Florian Fainelli <f.fainelli@gmail.com> > Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Matthias Brugger <mbrugger@suse.com> > --- > drivers/clk/bcm/clk-bcm2835.c | 103 +++++++++++++++++++++++++++++++++++------- > 1 file changed, 86 insertions(+), 17 deletions(-) > > diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c > index 867ae3c..3231b76 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> > @@ -289,6 +289,9 @@ > #define LOCK_TIMEOUT_NS 100000000 > #define BCM2835_MAX_FB_RATE 1750000000u > > +#define SOC_BCM2835 BIT(0) > +#define SOC_ALL (SOC_BCM2835) > + > /* > * 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 > @@ -1451,22 +1454,28 @@ 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 +1489,8 @@ 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 +1507,8 @@ 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 +1533,8 @@ 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 +1553,8 @@ 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 +1590,14 @@ 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 +1617,7 @@ 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 +1632,7 @@ 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 +1642,7 @@ 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 +1652,7 @@ 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 +1661,7 @@ 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 +1683,7 @@ 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 +1698,7 @@ 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 +1708,7 @@ 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 +1718,7 @@ 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 +1728,7 @@ 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 +1745,7 @@ 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 +1760,7 @@ 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, > @@ -1743,6 +1770,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .fixed_divider = 1, > .flags = CLK_SET_RATE_PARENT), > [BCM2835_PLLD_PER] = REGISTER_PLL_DIV( > + SOC_ALL, > .name = "plld_per", > .source_pll = "plld", > .cm_reg = CM_PLLD, > @@ -1752,6 +1780,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .fixed_divider = 1, > .flags = CLK_SET_RATE_PARENT), > [BCM2835_PLLD_DSI0] = REGISTER_PLL_DIV( > + SOC_ALL, > .name = "plld_dsi0", > .source_pll = "plld", > .cm_reg = CM_PLLD, > @@ -1760,6 +1789,7 @@ 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 +1805,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > * It is in the HDMI power domain. > */ > [BCM2835_PLLH] = REGISTER_PLL( > + SOC_ALL, > "pllh", > .cm_ctrl_reg = CM_PLLH, > .a2w_ctrl_reg = A2W_PLLH_CTRL, > @@ -1789,6 +1820,7 @@ 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_ALL, > .name = "pllh_rcal", > .source_pll = "pllh", > .cm_reg = CM_PLLH, > @@ -1798,6 +1830,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .fixed_divider = 10, > .flags = CLK_SET_RATE_PARENT), > [BCM2835_PLLH_AUX] = REGISTER_PLL_DIV( > + SOC_ALL, > .name = "pllh_aux", > .source_pll = "pllh", > .cm_reg = CM_PLLH, > @@ -1807,6 +1840,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .fixed_divider = 1, > .flags = CLK_SET_RATE_PARENT), > [BCM2835_PLLH_PIX] = REGISTER_PLL_DIV( > + SOC_ALL, > .name = "pllh_pix", > .source_pll = "pllh", > .cm_reg = CM_PLLH, > @@ -1822,6 +1856,7 @@ 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 +1868,7 @@ 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 +1879,14 @@ 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 +1895,7 @@ 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 +1903,7 @@ 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 +1916,7 @@ 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 +1924,7 @@ 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 +1938,7 @@ 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 +1950,7 @@ 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 +1958,7 @@ 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 +1966,7 @@ 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 +1974,14 @@ 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 +1991,7 @@ 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, > @@ -1952,6 +2001,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > > /* General purpose (GPIO) clocks */ > [BCM2835_CLOCK_GP0] = REGISTER_PER_CLK( > + SOC_ALL, > .name = "gp0", > .ctl_reg = CM_GP0CTL, > .div_reg = CM_GP0DIV, > @@ -1960,6 +2010,7 @@ 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 +2020,7 @@ 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 +2030,7 @@ 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 +2038,7 @@ 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 +2048,7 @@ 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 +2057,7 @@ 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 +2066,7 @@ 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 +2074,7 @@ 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 +2084,7 @@ 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 +2099,7 @@ 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 +2107,7 @@ 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 +2115,7 @@ 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 +2123,7 @@ 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 +2140,7 @@ 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 +2173,14 @@ 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); > + unsigned int soc; > size_t i; > int ret; > > + soc = (unsigned int)of_device_get_match_data(&pdev->dev); > + if (!soc) > + return -ENODEV; > + > cprman = devm_kzalloc(dev, > struct_size(cprman, onecell.hws, asize), > GFP_KERNEL); > @@ -2147,7 +2216,7 @@ 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 & soc)) > hws[i] = desc->clk_register(cprman, desc->data); > } > > @@ -2160,7 +2229,7 @@ static int bcm2835_clk_probe(struct platform_device *pdev) > } > > static const struct of_device_id bcm2835_clk_of_match[] = { > - { .compatible = "brcm,bcm2835-cprman", }, > + { .compatible = "brcm,bcm2835-cprman", .data = (void *)SOC_BCM2835 }, > {} > }; > MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match); > -- > 2.7.4 > >
Hi, Am 22.07.19 um 07:54 schrieb Stefan Wahren: > In order to support SoC specific clocks (e.g. emmc2 for BCM2711), we > extend the description with a SoC support flag. This approach avoids long > and mostly redundant lists of clock IDs. > > Suggested-by: Florian Fainelli <f.fainelli@gmail.com> > Signed-off-by: Stefan Wahren <wahrenst@gmx.net> > --- > drivers/clk/bcm/clk-bcm2835.c | 103 +++++++++++++++++++++++++++++++++++------- > 1 file changed, 86 insertions(+), 17 deletions(-) > > diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c > index 867ae3c..3231b76 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> > @@ -289,6 +289,9 @@ > #define LOCK_TIMEOUT_NS 100000000 > #define BCM2835_MAX_FB_RATE 1750000000u > > +#define SOC_BCM2835 BIT(0) > +#define SOC_ALL (SOC_BCM2835) > + ... > .cm_reg = CM_PLLD, > @@ -1775,6 +1805,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > * It is in the HDMI power domain. > */ > [BCM2835_PLLH] = REGISTER_PLL( > + SOC_ALL, > "pllh", > .cm_ctrl_reg = CM_PLLH, > .a2w_ctrl_reg = A2W_PLLH_CTRL, > @@ -1789,6 +1820,7 @@ 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_ALL, > .name = "pllh_rcal", > .source_pll = "pllh", > .cm_reg = CM_PLLH, > @@ -1798,6 +1830,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .fixed_divider = 10, > .flags = CLK_SET_RATE_PARENT), > [BCM2835_PLLH_AUX] = REGISTER_PLL_DIV( > + SOC_ALL, > .name = "pllh_aux", > .source_pll = "pllh", > .cm_reg = CM_PLLH, > @@ -1807,6 +1840,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { > .fixed_divider = 1, > .flags = CLK_SET_RATE_PARENT), > [BCM2835_PLLH_PIX] = REGISTER_PLL_DIV( > + SOC_ALL, > .name = "pllh_pix", > .source_pll = "pllh", > .cm_reg = CM_PLLH, i was informed that at least all PLLH related clocks are BCM2835 specific. So please don't apply this patch. I will send a fixed version soon.
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 867ae3c..3231b76 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> @@ -289,6 +289,9 @@ #define LOCK_TIMEOUT_NS 100000000 #define BCM2835_MAX_FB_RATE 1750000000u +#define SOC_BCM2835 BIT(0) +#define SOC_ALL (SOC_BCM2835) + /* * 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 @@ -1451,22 +1454,28 @@ 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 +1489,8 @@ 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 +1507,8 @@ 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 +1533,8 @@ 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 +1553,8 @@ 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 +1590,14 @@ 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 +1617,7 @@ 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 +1632,7 @@ 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 +1642,7 @@ 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 +1652,7 @@ 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 +1661,7 @@ 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 +1683,7 @@ 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 +1698,7 @@ 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 +1708,7 @@ 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 +1718,7 @@ 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 +1728,7 @@ 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 +1745,7 @@ 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 +1760,7 @@ 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, @@ -1743,6 +1770,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLD_PER] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plld_per", .source_pll = "plld", .cm_reg = CM_PLLD, @@ -1752,6 +1780,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLD_DSI0] = REGISTER_PLL_DIV( + SOC_ALL, .name = "plld_dsi0", .source_pll = "plld", .cm_reg = CM_PLLD, @@ -1760,6 +1789,7 @@ 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 +1805,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { * It is in the HDMI power domain. */ [BCM2835_PLLH] = REGISTER_PLL( + SOC_ALL, "pllh", .cm_ctrl_reg = CM_PLLH, .a2w_ctrl_reg = A2W_PLLH_CTRL, @@ -1789,6 +1820,7 @@ 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_ALL, .name = "pllh_rcal", .source_pll = "pllh", .cm_reg = CM_PLLH, @@ -1798,6 +1830,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 10, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLH_AUX] = REGISTER_PLL_DIV( + SOC_ALL, .name = "pllh_aux", .source_pll = "pllh", .cm_reg = CM_PLLH, @@ -1807,6 +1840,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .fixed_divider = 1, .flags = CLK_SET_RATE_PARENT), [BCM2835_PLLH_PIX] = REGISTER_PLL_DIV( + SOC_ALL, .name = "pllh_pix", .source_pll = "pllh", .cm_reg = CM_PLLH, @@ -1822,6 +1856,7 @@ 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 +1868,7 @@ 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 +1879,14 @@ 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 +1895,7 @@ 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 +1903,7 @@ 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 +1916,7 @@ 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 +1924,7 @@ 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 +1938,7 @@ 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 +1950,7 @@ 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 +1958,7 @@ 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 +1966,7 @@ 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 +1974,14 @@ 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 +1991,7 @@ 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, @@ -1952,6 +2001,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { /* General purpose (GPIO) clocks */ [BCM2835_CLOCK_GP0] = REGISTER_PER_CLK( + SOC_ALL, .name = "gp0", .ctl_reg = CM_GP0CTL, .div_reg = CM_GP0DIV, @@ -1960,6 +2010,7 @@ 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 +2020,7 @@ 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 +2030,7 @@ 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 +2038,7 @@ 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 +2048,7 @@ 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 +2057,7 @@ 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 +2066,7 @@ 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 +2074,7 @@ 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 +2084,7 @@ 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 +2099,7 @@ 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 +2107,7 @@ 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 +2115,7 @@ 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 +2123,7 @@ 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 +2140,7 @@ 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 +2173,14 @@ 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); + unsigned int soc; size_t i; int ret; + soc = (unsigned int)of_device_get_match_data(&pdev->dev); + if (!soc) + return -ENODEV; + cprman = devm_kzalloc(dev, struct_size(cprman, onecell.hws, asize), GFP_KERNEL); @@ -2147,7 +2216,7 @@ 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 & soc)) hws[i] = desc->clk_register(cprman, desc->data); } @@ -2160,7 +2229,7 @@ static int bcm2835_clk_probe(struct platform_device *pdev) } static const struct of_device_id bcm2835_clk_of_match[] = { - { .compatible = "brcm,bcm2835-cprman", }, + { .compatible = "brcm,bcm2835-cprman", .data = (void *)SOC_BCM2835 }, {} }; MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match);
In order to support SoC specific clocks (e.g. emmc2 for BCM2711), we extend the description with a SoC support flag. This approach avoids long and mostly redundant lists of clock IDs. Suggested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Stefan Wahren <wahrenst@gmx.net> --- drivers/clk/bcm/clk-bcm2835.c | 103 +++++++++++++++++++++++++++++++++++------- 1 file changed, 86 insertions(+), 17 deletions(-) -- 2.7.4