From 51c19541624f5588bccb9d4fb3ae518c68c8082e Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Mon, 22 Feb 2010 22:09:26 -0700 Subject: OMAP clock: drop RATE_FIXED clock flag 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 Cc: Richard Woodruff --- arch/arm/mach-omap1/clock.c | 5 +---- arch/arm/mach-omap1/clock_data.c | 25 +++++++++---------------- 2 files changed, 10 insertions(+), 20 deletions(-) (limited to 'arch/arm/mach-omap1') diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c index 3e052f6532b..0ba044d80a4 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 * * 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 cea91cdf624..8b1d14d1e38 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 * 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, }; -- cgit v1.2.3-70-g09d2