From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Lezcano Subject: Re: [PATCH 16/18] thermal: exynos: cleanup code for enabling threshold interrupts Date: Tue, 1 May 2018 13:02:39 +0200 Message-ID: <20180501110239.GM27619@mai> References: <1524743493-28113-1-git-send-email-b.zolnierkie@samsung.com> <1524743493-28113-17-git-send-email-b.zolnierkie@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: <1524743493-28113-17-git-send-email-b.zolnierkie@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Bartlomiej Zolnierkiewicz Cc: Eduardo Valentin , Zhang Rui , linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-pm@vger.kernel.org On Thu, Apr 26, 2018 at 01:51:31PM +0200, Bartlomiej Zolnierkiewicz wrote: > Cleanup code for enabling threshold interrupts in ->tmu_control > method implementations. > > There should be no functional changes caused by this patch. > > Signed-off-by: Bartlomiej Zolnierkiewicz > --- > drivers/thermal/samsung/exynos_tmu.c | 101 ++++++++++++----------------------- > 1 file changed, 34 insertions(+), 67 deletions(-) > > diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c > index abe0737..9639acf 100644 > --- a/drivers/thermal/samsung/exynos_tmu.c > +++ b/drivers/thermal/samsung/exynos_tmu.c > @@ -76,9 +76,6 @@ > #define EXYNOS_TMU_THERM_TRIP_EN_SHIFT 12 > > #define EXYNOS_TMU_INTEN_RISE0_SHIFT 0 > -#define EXYNOS_TMU_INTEN_RISE1_SHIFT 4 > -#define EXYNOS_TMU_INTEN_RISE2_SHIFT 8 > -#define EXYNOS_TMU_INTEN_RISE3_SHIFT 12 > #define EXYNOS_TMU_INTEN_FALL0_SHIFT 16 > > #define EXYNOS_EMUL_TIME 0x57F0 > @@ -136,13 +133,6 @@ > #define EXYNOS7_TMU_TEMP_MASK 0x1ff > #define EXYNOS7_PD_DET_EN_SHIFT 23 > #define EXYNOS7_TMU_INTEN_RISE0_SHIFT 0 > -#define EXYNOS7_TMU_INTEN_RISE1_SHIFT 1 > -#define EXYNOS7_TMU_INTEN_RISE2_SHIFT 2 > -#define EXYNOS7_TMU_INTEN_RISE3_SHIFT 3 > -#define EXYNOS7_TMU_INTEN_RISE4_SHIFT 4 > -#define EXYNOS7_TMU_INTEN_RISE5_SHIFT 5 > -#define EXYNOS7_TMU_INTEN_RISE6_SHIFT 6 > -#define EXYNOS7_TMU_INTEN_RISE7_SHIFT 7 > #define EXYNOS7_EMUL_DATA_SHIFT 7 > #define EXYNOS7_EMUL_DATA_MASK 0x1ff > > @@ -615,29 +605,27 @@ static void exynos4210_tmu_control(struct platform_device *pdev, bool on) > { > struct exynos_tmu_data *data = platform_get_drvdata(pdev); > struct thermal_zone_device *tz = data->tzd; > - unsigned int con, interrupt_en; > + unsigned int con, interrupt_en = 0, i; > > con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); > > if (on) { > - con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); > - interrupt_en = > - (of_thermal_is_trip_valid(tz, 3) > - << EXYNOS_TMU_INTEN_RISE3_SHIFT) | > - (of_thermal_is_trip_valid(tz, 2) > - << EXYNOS_TMU_INTEN_RISE2_SHIFT) | > - (of_thermal_is_trip_valid(tz, 1) > - << EXYNOS_TMU_INTEN_RISE1_SHIFT) | > - (of_thermal_is_trip_valid(tz, 0) > - << EXYNOS_TMU_INTEN_RISE0_SHIFT); > + for (i = 0; i < data->ntrip; i++) { > + if (!of_thermal_is_trip_valid(tz, i)) > + continue; > + > + interrupt_en |= > + (1 << (EXYNOS_TMU_INTEN_RISE0_SHIFT + i * 4)); > + } As EXYNOS_TMU_INTEN_RISE0_SHIFT is equal to zero, may be you can replace this by BITS(i * 4) ? Same comments for exynos5433 and exynos7 below. I don't know which one was intended : ((EXYNOS_TMU_INTEN_RISE0_SHIFT + i) * 4) or (EXYNOS_TMU_INTEN_RISE0_SHIFT + (i * 4)) but if it is the former it is lucky it works because the macro is zero. Is it possible to have the registers layout, that would facilitate the review. -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog