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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 12:05:15 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 12:05:15 -0800 |
commit | d027db132b395dabfac208e52a7e510e441bb9d2 (patch) | |
tree | 24b055b2385f9848e77e646ce475991d8675c3c4 /arch/arm/mach-shmobile/clock-sh7372.c | |
parent | d01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (diff) | |
parent | 5faf7cbb848da827f6ea1458b5a1c26a44e7510a (diff) | |
download | linux-d027db132b395dabfac208e52a7e510e441bb9d2.tar.gz |
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC updates from Olof Johansson:
"This contains the bulk of new SoC development for this merge window.
Two new platforms have been added, the sunxi platforms (Allwinner A1x
SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
series of ARMv7 platforms from them, where the hope is that we can
keep the platform code generic enough to have them all share one mach
directory. The new Broadcom platform is contributed by Christian
Daudt.
Highbank has grown support for Calxeda's next generation of hardware,
ECX-2000.
clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
also taken on maintainership of the platform.
Beyond this there has been a bunch of work from a number of people on
converting more platforms to IRQ domains, pinctrl conversion, cleanup
and general feature enablement across most of the active platforms."
Fix up trivial conflicts as per Olof.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
mfd: vexpress-sysreg: Remove LEDs code
irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
irq: versatile: delete dangling variable
ARM: sunxi: add missing include for mdelay()
ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
ARM: dts: add node for PL330 MDMA1 controller for exynos4
ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
ARM: EXYNOS: add UART3 to DEBUG_LL ports
ARM: S3C24XX: Add clkdev entry for camif-upll clock
ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
ARM: sunxi: Add missing sun4i.dtsi file
pinctrl: samsung: Do not initialise statics to 0
ARM i.MX6: remove gate_mask from pllv3
ARM i.MX6: Fix ethernet PLL clocks
ARM i.MX6: rename PLLs according to datasheet
ARM i.MX6: Add pwm support
ARM i.MX51: Add pwm support
ARM i.MX53: Add pwm support
ARM: mx5: Replace clk_register_clkdev with clock DT lookup
...
Diffstat (limited to 'arch/arm/mach-shmobile/clock-sh7372.c')
-rw-r--r-- | arch/arm/mach-shmobile/clock-sh7372.c | 94 |
1 files changed, 12 insertions, 82 deletions
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index 430a90ffa120..4d57e342537b 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -420,87 +420,11 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = { }; /* FSI DIV */ -static unsigned long fsidiv_recalc(struct clk *clk) -{ - unsigned long value; - - value = __raw_readl(clk->mapping->base); - - value >>= 16; - if (value < 2) - return 0; - - return clk->parent->rate / value; -} - -static long fsidiv_round_rate(struct clk *clk, unsigned long rate) -{ - return clk_rate_div_range_round(clk, 2, 0xffff, rate); -} - -static void fsidiv_disable(struct clk *clk) -{ - __raw_writel(0, clk->mapping->base); -} - -static int fsidiv_enable(struct clk *clk) -{ - unsigned long value; - - value = __raw_readl(clk->mapping->base) >> 16; - if (value < 2) - return -EIO; - - __raw_writel((value << 16) | 0x3, clk->mapping->base); - - return 0; -} +enum { FSIDIV_A, FSIDIV_B, FSIDIV_REPARENT_NR }; -static int fsidiv_set_rate(struct clk *clk, unsigned long rate) -{ - int idx; - - idx = (clk->parent->rate / rate) & 0xffff; - if (idx < 2) - return -EINVAL; - - __raw_writel(idx << 16, clk->mapping->base); - return 0; -} - -static struct sh_clk_ops fsidiv_clk_ops = { - .recalc = fsidiv_recalc, - .round_rate = fsidiv_round_rate, - .set_rate = fsidiv_set_rate, - .enable = fsidiv_enable, - .disable = fsidiv_disable, -}; - -static struct clk_mapping fsidiva_clk_mapping = { - .phys = FSIDIVA, - .len = 8, -}; - -struct clk sh7372_fsidiva_clk = { - .ops = &fsidiv_clk_ops, - .parent = &div6_reparent_clks[DIV6_FSIA], /* late install */ - .mapping = &fsidiva_clk_mapping, -}; - -static struct clk_mapping fsidivb_clk_mapping = { - .phys = FSIDIVB, - .len = 8, -}; - -struct clk sh7372_fsidivb_clk = { - .ops = &fsidiv_clk_ops, - .parent = &div6_reparent_clks[DIV6_FSIB], /* late install */ - .mapping = &fsidivb_clk_mapping, -}; - -static struct clk *late_main_clks[] = { - &sh7372_fsidiva_clk, - &sh7372_fsidivb_clk, +static struct clk fsidivs[] = { + [FSIDIV_A] = SH_CLK_FSIDIV(FSIDIVA, &div6_reparent_clks[DIV6_FSIA]), + [FSIDIV_B] = SH_CLK_FSIDIV(FSIDIVB, &div6_reparent_clks[DIV6_FSIB]), }; enum { MSTP001, MSTP000, @@ -583,6 +507,8 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("pllc1_clk", &pllc1_clk), CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk), CLKDEV_CON_ID("pllc2_clk", &sh7372_pllc2_clk), + CLKDEV_CON_ID("fsidiva", &fsidivs[FSIDIV_A]), + CLKDEV_CON_ID("fsidivb", &fsidivs[FSIDIV_B]), /* DIV4 clocks */ CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]), @@ -678,6 +604,10 @@ static struct clk_lookup lookups[] = { CLKDEV_ICK_ID("icka", "sh_fsi2", &div6_reparent_clks[DIV6_FSIA]), CLKDEV_ICK_ID("ickb", "sh_fsi2", &div6_reparent_clks[DIV6_FSIB]), CLKDEV_ICK_ID("spu2", "sh_fsi2", &mstp_clks[MSTP223]), + CLKDEV_ICK_ID("diva", "sh_fsi2", &fsidivs[FSIDIV_A]), + CLKDEV_ICK_ID("divb", "sh_fsi2", &fsidivs[FSIDIV_B]), + CLKDEV_ICK_ID("xcka", "sh_fsi2", &sh7372_fsiack_clk), + CLKDEV_ICK_ID("xckb", "sh_fsi2", &sh7372_fsibck_clk), }; void __init sh7372_clock_init(void) @@ -706,8 +636,8 @@ void __init sh7372_clock_init(void) if (!ret) ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); - for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++) - ret = clk_register(late_main_clks[k]); + if (!ret) + ret = sh_clk_fsidiv_register(fsidivs, FSIDIV_REPARENT_NR); clkdev_add_table(lookups, ARRAY_SIZE(lookups)); |