The RATE_FIXED clock flag is pointless. In the OMAP1 clock code, it simply causes the omap1_clk_round_rate() function to return the current rate of the clock. omap1_clk_round_rate(), however, should never be called for a fixed-rate clock, since none of these clocks have a .round_rate function pointer set in their struct clk records. Similarly, in the OMAP2+ clock code, the RATE_FIXED flag just causes the clock code to emit a warning if the OMAP clock maintainer was foolish enough to add a .round_rate function pointer to a fixed-rate clock. "Doctor, it hurts when I pretend that a fixed-rate clock is rate-changeable." "Then don't pretend that a fixed-rate clock is rate-changeable." It has no functional value. This patch drops the RATE_FIXED clock flag, removing it from all clocks that are so marked.
Signed-off-by: Paul Walmsley <[email protected]> Cc: Richard Woodruff <[email protected]> --- arch/arm/mach-omap1/clock.c | 5 +---- arch/arm/mach-omap1/clock_data.c | 25 +++++++++---------------- arch/arm/mach-omap2/clkt_clksel.c | 4 ---- arch/arm/mach-omap2/clock2420_data.c | 7 ++----- arch/arm/mach-omap2/clock2430_data.c | 7 ++----- arch/arm/plat-omap/include/plat/clock.h | 13 ++++++------- 6 files changed, 20 insertions(+), 41 deletions(-) diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c index 3e052f6..0ba044d 100644 --- a/arch/arm/mach-omap1/clock.c +++ b/arch/arm/mach-omap1/clock.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/mach-omap1/clock.c * - * Copyright (C) 2004 - 2005, 2009 Nokia corporation + * Copyright (C) 2004 - 2005, 2009-2010 Nokia Corporation * Written by Tuukka Tikkanen <[email protected]> * * Modified to use omap shared clock framework by @@ -571,9 +571,6 @@ const struct clkops clkops_uart = { long omap1_clk_round_rate(struct clk *clk, unsigned long rate) { - if (clk->flags & RATE_FIXED) - return clk->rate; - if (clk->round_rate != NULL) return clk->round_rate(clk, rate); diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c index cea91cd..8b1d14d 100644 --- a/arch/arm/mach-omap1/clock_data.c +++ b/arch/arm/mach-omap1/clock_data.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/mach-omap1/clock_data.c * - * Copyright (C) 2004 - 2005, 2009 Nokia corporation + * Copyright (C) 2004 - 2005, 2009-2010 Nokia Corporation * Written by Tuukka Tikkanen <[email protected]> * Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc * @@ -31,7 +31,6 @@ static struct clk dummy_ck = { .name = "dummy", .ops = &clkops_dummy, - .flags = RATE_FIXED, }; static struct clk ck_ref = { @@ -389,8 +388,7 @@ static struct uart_clk uart1_16xx = { /* Direct from ULPD, no real parent */ .parent = &armper_ck.clk, .rate = 48000000, - .flags = RATE_FIXED | ENABLE_REG_32BIT | - CLOCK_NO_IDLE_PARENT, + .flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, .enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0), .enable_bit = 29, }, @@ -430,8 +428,7 @@ static struct uart_clk uart3_16xx = { /* Direct from ULPD, no real parent */ .parent = &armper_ck.clk, .rate = 48000000, - .flags = RATE_FIXED | ENABLE_REG_32BIT | - CLOCK_NO_IDLE_PARENT, + .flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, .enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0), .enable_bit = 31, }, @@ -443,7 +440,7 @@ static struct clk usb_clko = { /* 6 MHz output on W4_USB_CLKO */ .ops = &clkops_generic, /* Direct from ULPD, no parent */ .rate = 6000000, - .flags = RATE_FIXED | ENABLE_REG_32BIT, + .flags = ENABLE_REG_32BIT, .enable_reg = OMAP1_IO_ADDRESS(ULPD_CLOCK_CTRL), .enable_bit = USB_MCLK_EN_BIT, }; @@ -453,7 +450,7 @@ static struct clk usb_hhc_ck1510 = { .ops = &clkops_generic, /* Direct from ULPD, no parent */ .rate = 48000000, /* Actually 2 clocks, 12MHz and 48MHz */ - .flags = RATE_FIXED | ENABLE_REG_32BIT, + .flags = ENABLE_REG_32BIT, .enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0), .enable_bit = USB_HOST_HHC_UHOST_EN, }; @@ -464,7 +461,7 @@ static struct clk usb_hhc_ck16xx = { /* Direct from ULPD, no parent */ .rate = 48000000, /* OTG_SYSCON_2.OTG_PADEN == 0 (not 1510-compatible) */ - .flags = RATE_FIXED | ENABLE_REG_32BIT, + .flags = ENABLE_REG_32BIT, .enable_reg = OMAP1_IO_ADDRESS(OTG_BASE + 0x08), /* OTG_SYSCON_2 */ .enable_bit = 8 /* UHOST_EN */, }; @@ -474,7 +471,6 @@ static struct clk usb_dc_ck = { .ops = &clkops_generic, /* Direct from ULPD, no parent */ .rate = 48000000, - .flags = RATE_FIXED, .enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG), .enable_bit = 4, }; @@ -484,7 +480,6 @@ static struct clk usb_dc_ck7xx = { .ops = &clkops_generic, /* Direct from ULPD, no parent */ .rate = 48000000, - .flags = RATE_FIXED, .enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG), .enable_bit = 8, }; @@ -494,7 +489,6 @@ static struct clk mclk_1510 = { .ops = &clkops_generic, /* Direct from ULPD, no parent. May be enabled by ext hardware. */ .rate = 12000000, - .flags = RATE_FIXED, .enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG), .enable_bit = 6, }; @@ -515,7 +509,6 @@ static struct clk bclk_1510 = { .ops = &clkops_generic, /* Direct from ULPD, no parent. May be enabled by ext hardware. */ .rate = 12000000, - .flags = RATE_FIXED, }; static struct clk bclk_16xx = { @@ -535,7 +528,7 @@ static struct clk mmc1_ck = { /* Functional clock is direct from ULPD, interface clock is ARMPER */ .parent = &armper_ck.clk, .rate = 48000000, - .flags = RATE_FIXED | ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, + .flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, .enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0), .enable_bit = 23, }; @@ -546,7 +539,7 @@ static struct clk mmc2_ck = { /* Functional clock is direct from ULPD, interface clock is ARMPER */ .parent = &armper_ck.clk, .rate = 48000000, - .flags = RATE_FIXED | ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, + .flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, .enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0), .enable_bit = 20, }; @@ -557,7 +550,7 @@ static struct clk mmc3_ck = { /* Functional clock is direct from ULPD, interface clock is ARMPER */ .parent = &armper_ck.clk, .rate = 48000000, - .flags = RATE_FIXED | ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, + .flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT, .enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG), .enable_bit = 12, }; diff --git a/arch/arm/mach-omap2/clkt_clksel.c b/arch/arm/mach-omap2/clkt_clksel.c index ade19f6..e50812d 100644 --- a/arch/arm/mach-omap2/clkt_clksel.c +++ b/arch/arm/mach-omap2/clkt_clksel.c @@ -258,10 +258,6 @@ long omap2_clk_round_rate(struct clk *clk, unsigned long rate) if (clk->round_rate) return clk->round_rate(clk, rate); - if (clk->flags & RATE_FIXED) - printk(KERN_ERR "clock: generic omap2_clk_round_rate called " - "on fixed-rate clock %s\n", clk->name); - return clk->rate; } diff --git a/arch/arm/mach-omap2/clock2420_data.c b/arch/arm/mach-omap2/clock2420_data.c index bef647a..f2122d7 100644 --- a/arch/arm/mach-omap2/clock2420_data.c +++ b/arch/arm/mach-omap2/clock2420_data.c @@ -55,7 +55,6 @@ static struct clk func_32k_ck = { .name = "func_32k_ck", .ops = &clkops_null, .rate = 32000, - .flags = RATE_FIXED, .clkdm_name = "wkup_clkdm", }; @@ -63,7 +62,6 @@ static struct clk secure_32k_ck = { .name = "secure_32k_ck", .ops = &clkops_null, .rate = 32768, - .flags = RATE_FIXED, .clkdm_name = "wkup_clkdm", }; @@ -88,7 +86,6 @@ static struct clk alt_ck = { /* Typical 54M or 48M, may not exist */ .name = "alt_ck", .ops = &clkops_null, .rate = 54000000, - .flags = RATE_FIXED, .clkdm_name = "wkup_clkdm", }; @@ -134,7 +131,7 @@ static struct clk apll96_ck = { .ops = &clkops_apll96, .parent = &sys_ck, .rate = 96000000, - .flags = RATE_FIXED | ENABLE_ON_INIT, + .flags = ENABLE_ON_INIT, .clkdm_name = "wkup_clkdm", .enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN), .enable_bit = OMAP24XX_EN_96M_PLL_SHIFT, @@ -145,7 +142,7 @@ static struct clk apll54_ck = { .ops = &clkops_apll54, .parent = &sys_ck, .rate = 54000000, - .flags = RATE_FIXED | ENABLE_ON_INIT, + .flags = ENABLE_ON_INIT, .clkdm_name = "wkup_clkdm", .enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN), .enable_bit = OMAP24XX_EN_54M_PLL_SHIFT, diff --git a/arch/arm/mach-omap2/clock2430_data.c b/arch/arm/mach-omap2/clock2430_data.c index b389584..0438b6e 100644 --- a/arch/arm/mach-omap2/clock2430_data.c +++ b/arch/arm/mach-omap2/clock2430_data.c @@ -55,7 +55,6 @@ static struct clk func_32k_ck = { .name = "func_32k_ck", .ops = &clkops_null, .rate = 32000, - .flags = RATE_FIXED, .clkdm_name = "wkup_clkdm", }; @@ -63,7 +62,6 @@ static struct clk secure_32k_ck = { .name = "secure_32k_ck", .ops = &clkops_null, .rate = 32768, - .flags = RATE_FIXED, .clkdm_name = "wkup_clkdm", }; @@ -88,7 +86,6 @@ static struct clk alt_ck = { /* Typical 54M or 48M, may not exist */ .name = "alt_ck", .ops = &clkops_null, .rate = 54000000, - .flags = RATE_FIXED, .clkdm_name = "wkup_clkdm", }; @@ -134,7 +131,7 @@ static struct clk apll96_ck = { .ops = &clkops_apll96, .parent = &sys_ck, .rate = 96000000, - .flags = RATE_FIXED | ENABLE_ON_INIT, + .flags = ENABLE_ON_INIT, .clkdm_name = "wkup_clkdm", .enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN), .enable_bit = OMAP24XX_EN_96M_PLL_SHIFT, @@ -145,7 +142,7 @@ static struct clk apll54_ck = { .ops = &clkops_apll54, .parent = &sys_ck, .rate = 54000000, - .flags = RATE_FIXED | ENABLE_ON_INIT, + .flags = ENABLE_ON_INIT, .clkdm_name = "wkup_clkdm", .enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN), .enable_bit = OMAP24XX_EN_54M_PLL_SHIFT, diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h index 9ce9323..dcfdcd6 100644 --- a/arch/arm/plat-omap/include/plat/clock.h +++ b/arch/arm/plat-omap/include/plat/clock.h @@ -188,13 +188,12 @@ extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table); extern const struct clkops clkops_null; /* Clock flags */ -#define RATE_FIXED (1 << 0) /* Fixed clock rate */ -#define ENABLE_REG_32BIT (1 << 1) /* Use 32-bit access */ -#define CLOCK_IDLE_CONTROL (1 << 2) -#define CLOCK_NO_IDLE_PARENT (1 << 3) -#define ENABLE_ON_INIT (1 << 4) /* Enable upon framework init */ -#define INVERT_ENABLE (1 << 5) /* 0 enables, 1 disables */ -#define ALWAYS_ENABLED (1 << 6) +#define ENABLE_REG_32BIT (1 << 0) /* Use 32-bit access */ +#define CLOCK_IDLE_CONTROL (1 << 1) +#define CLOCK_NO_IDLE_PARENT (1 << 2) +#define ENABLE_ON_INIT (1 << 3) /* Enable upon framework init */ +#define INVERT_ENABLE (1 << 4) /* 0 enables, 1 disables */ +#define ALWAYS_ENABLED (1 << 5) /* Clksel_rate flags */ #define DEFAULT_RATE (1 << 0) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
