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Groups > linux.kernel > #1419798
| From | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 01/48] clk: at91: replace usleep() by udelay() calls |
| Date | 2016-06-11 00:20 +0200 |
| Message-ID | <rICWu-2P1-31@gated-at.bofh.it> (permalink) |
| References | <rICMO-2IE-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Cyrille Pitchen <cyrille.pitchen@atmel.com> Fix the main and slow clock .prepare() implementations which used to call usleep() when the scheduler wasn't ready yet. Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> --- drivers/clk/at91/clk-main.c | 2 +- drivers/clk/at91/clk-slow.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c index 58b5baca670c..12c5062aeb92 100644 --- a/drivers/clk/at91/clk-main.c +++ b/drivers/clk/at91/clk-main.c @@ -342,7 +342,7 @@ static int clk_main_probe_frequency(struct regmap *regmap) regmap_read(regmap, AT91_CKGR_MCFR, &mcfr); if (mcfr & AT91_PMC_MAINRDY) return 0; - usleep_range(MAINF_LOOP_MIN_WAIT, MAINF_LOOP_MAX_WAIT); + udelay(MAINF_LOOP_MIN_WAIT); } while (time_before(prep_time, timeout)); return -ETIMEDOUT; diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c index 61090b1146cf..612e893ce994 100644 --- a/drivers/clk/at91/clk-slow.c +++ b/drivers/clk/at91/clk-slow.c @@ -76,7 +76,7 @@ static int clk_slow_osc_prepare(struct clk_hw *hw) writel(tmp | AT91_SCKC_OSC32EN, sckcr); - usleep_range(osc->startup_usec, osc->startup_usec + 1); + udelay(osc->startup_usec); return 0; } @@ -195,7 +195,7 @@ static int clk_slow_rc_osc_prepare(struct clk_hw *hw) writel(readl(sckcr) | AT91_SCKC_RCEN, sckcr); - usleep_range(osc->startup_usec, osc->startup_usec + 1); + udelay(osc->startup_usec); return 0; } @@ -304,7 +304,7 @@ static int clk_sam9x5_slow_set_parent(struct clk_hw *hw, u8 index) writel(tmp, sckcr); - usleep_range(SLOWCK_SW_TIME_USEC, SLOWCK_SW_TIME_USEC + 1); + udelay(SLOWCK_SW_TIME_USEC); return 0; } -- 2.8.1
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[PATCH 00/48] ARM: at91: rework Atmel TCB drivers Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 01/48] clk: at91: replace usleep() by udelay() calls Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Arnd Bergmann <arnd@arndb.de> - 2016-06-11 00:40 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:40 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-13 17:30 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Arnd Bergmann <arnd@arndb.de> - 2016-06-13 21:30 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Afzal Mohammed <afzal.mohd.ma@gmail.com> - 2016-06-14 18:10 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-14 18:20 +0200
Re: [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-11 10:00 +0200
[PATCH 07/48] ARM: dts: at91: ethernut5: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 02/48] ARM: at91: Document new TCB bindings Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
Re: [PATCH 02/48] ARM: at91: Document new TCB bindings Rob Herring <robh@kernel.org> - 2016-06-14 23:50 +0200
Re: [PATCH 02/48] ARM: at91: Document new TCB bindings Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-15 09:40 +0200
Re: [PATCH 02/48] ARM: at91: Document new TCB bindings Rob Herring <robh@kernel.org> - 2016-06-21 22:10 +0200
Re: [PATCH 02/48] ARM: at91: Document new TCB bindings Rob Herring <robh@kernel.org> - 2016-06-21 22:50 +0200
[PATCH 11/48] ARM: dts: at91: at91sam9g20ek: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 23/48] ARM: dts: at91: at91sam9n12: TC blocks are also simple-mfd and syscon devices Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 26/48] ARM: dts: at91: at91sam9x5cm: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 22/48] ARM: dts: at91: at91sam9rlek: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 06/48] ARM: dts: at91: at91sam9260: TC blocks are also simple-mfd and syscon devices Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 14/48] ARM: dts: at91: at91sam9261ek: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 28/48] ARM: dts: at91: cosino: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 29/48] ARM: dts: at91: kizboxmini: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 24/48] ARM: dts: at91: at91sam9n12ek: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 08/48] ARM: dts: at91: foxg20: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
[PATCH 20/48] ARM: dts: at91: pm9g45: use TCB0 as clocksource Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-06-11 00:20 +0200
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