| Message ID | 20220314141643.22184-12-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | clk: provide new devm helpers for prepared and enabled clocks | expand |
On Mon, Mar 14, 2022 at 03:16:38PM +0100, Uwe Kleine-König wrote: > Several drivers manually register a devm handler to disable their clk. > Convert them to devm_clk_get_enabled(). > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Guenter Roeck <linux@roeck-us.net> > --- > drivers/watchdog/cadence_wdt.c | 17 +---------------- > drivers/watchdog/davinci_wdt.c | 18 +----------------- > drivers/watchdog/imgpdc_wdt.c | 31 +++---------------------------- > drivers/watchdog/imx2_wdt.c | 15 +-------------- > drivers/watchdog/imx7ulp_wdt.c | 15 +-------------- > drivers/watchdog/loongson1_wdt.c | 17 +---------------- > drivers/watchdog/lpc18xx_wdt.c | 30 ++---------------------------- > drivers/watchdog/meson_gxbb_wdt.c | 16 +--------------- > drivers/watchdog/of_xilinx_wdt.c | 16 +--------------- > drivers/watchdog/pic32-dmt.c | 15 +-------------- > drivers/watchdog/pic32-wdt.c | 17 +---------------- > drivers/watchdog/pnx4008_wdt.c | 15 +-------------- > drivers/watchdog/qcom-wdt.c | 16 +--------------- > drivers/watchdog/rtd119x_wdt.c | 16 +--------------- > drivers/watchdog/st_lpc_wdt.c | 16 +--------------- > drivers/watchdog/stm32_iwdg.c | 31 ++----------------------------- > drivers/watchdog/visconti_wdt.c | 18 +----------------- > 17 files changed, 21 insertions(+), 298 deletions(-) > > diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c > index bc99e9164930..23d41043863f 100644 > --- a/drivers/watchdog/cadence_wdt.c > +++ b/drivers/watchdog/cadence_wdt.c > @@ -274,11 +274,6 @@ static const struct watchdog_ops cdns_wdt_ops = { > .set_timeout = cdns_wdt_settimeout, > }; > > -static void cdns_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > /************************Platform Operations*****************************/ > /** > * cdns_wdt_probe - Probe call for the device. > @@ -333,21 +328,11 @@ static int cdns_wdt_probe(struct platform_device *pdev) > watchdog_stop_on_reboot(cdns_wdt_device); > watchdog_set_drvdata(cdns_wdt_device, wdt); > > - wdt->clk = devm_clk_get(dev, NULL); > + wdt->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(wdt->clk)) > return dev_err_probe(dev, PTR_ERR(wdt->clk), > "input clock not found\n"); > > - ret = clk_prepare_enable(wdt->clk); > - if (ret) { > - dev_err(dev, "unable to enable clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, cdns_clk_disable_unprepare, > - wdt->clk); > - if (ret) > - return ret; > - > clock_f = clk_get_rate(wdt->clk); > if (clock_f <= CDNS_WDT_CLK_75MHZ) { > wdt->prescaler = CDNS_WDT_PRESCALE_512; > diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c > index 584a56893b81..5f2184bda7b2 100644 > --- a/drivers/watchdog/davinci_wdt.c > +++ b/drivers/watchdog/davinci_wdt.c > @@ -189,14 +189,8 @@ static const struct watchdog_ops davinci_wdt_ops = { > .restart = davinci_wdt_restart, > }; > > -static void davinci_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int davinci_wdt_probe(struct platform_device *pdev) > { > - int ret = 0; > struct device *dev = &pdev->dev; > struct watchdog_device *wdd; > struct davinci_wdt_device *davinci_wdt; > @@ -205,21 +199,11 @@ static int davinci_wdt_probe(struct platform_device *pdev) > if (!davinci_wdt) > return -ENOMEM; > > - davinci_wdt->clk = devm_clk_get(dev, NULL); > + davinci_wdt->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(davinci_wdt->clk)) > return dev_err_probe(dev, PTR_ERR(davinci_wdt->clk), > "failed to get clock node\n"); > > - ret = clk_prepare_enable(davinci_wdt->clk); > - if (ret) { > - dev_err(dev, "failed to prepare clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, davinci_clk_disable_unprepare, > - davinci_wdt->clk); > - if (ret) > - return ret; > - > platform_set_drvdata(pdev, davinci_wdt); > > wdd = &davinci_wdt->wdd; > diff --git a/drivers/watchdog/imgpdc_wdt.c b/drivers/watchdog/imgpdc_wdt.c > index b57ff3787052..a55f801895d4 100644 > --- a/drivers/watchdog/imgpdc_wdt.c > +++ b/drivers/watchdog/imgpdc_wdt.c > @@ -175,16 +175,11 @@ static const struct watchdog_ops pdc_wdt_ops = { > .restart = pdc_wdt_restart, > }; > > -static void pdc_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int pdc_wdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > u64 div; > - int ret, val; > + int val; > unsigned long clk_rate; > struct pdc_wdt_dev *pdc_wdt; > > @@ -196,38 +191,18 @@ static int pdc_wdt_probe(struct platform_device *pdev) > if (IS_ERR(pdc_wdt->base)) > return PTR_ERR(pdc_wdt->base); > > - pdc_wdt->sys_clk = devm_clk_get(dev, "sys"); > + pdc_wdt->sys_clk = devm_clk_get_enabled(dev, "sys"); > if (IS_ERR(pdc_wdt->sys_clk)) { > dev_err(dev, "failed to get the sys clock\n"); > return PTR_ERR(pdc_wdt->sys_clk); > } > > - pdc_wdt->wdt_clk = devm_clk_get(dev, "wdt"); > + pdc_wdt->wdt_clk = devm_clk_get_enabled(dev, "wdt"); > if (IS_ERR(pdc_wdt->wdt_clk)) { > dev_err(dev, "failed to get the wdt clock\n"); > return PTR_ERR(pdc_wdt->wdt_clk); > } > > - ret = clk_prepare_enable(pdc_wdt->sys_clk); > - if (ret) { > - dev_err(dev, "could not prepare or enable sys clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, pdc_clk_disable_unprepare, > - pdc_wdt->sys_clk); > - if (ret) > - return ret; > - > - ret = clk_prepare_enable(pdc_wdt->wdt_clk); > - if (ret) { > - dev_err(dev, "could not prepare or enable wdt clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, pdc_clk_disable_unprepare, > - pdc_wdt->wdt_clk); > - if (ret) > - return ret; > - > /* We use the clock rate to calculate the max timeout */ > clk_rate = clk_get_rate(pdc_wdt->wdt_clk); > if (clk_rate == 0) { > diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c > index 51bfb796898b..273d720588bf 100644 > --- a/drivers/watchdog/imx2_wdt.c > +++ b/drivers/watchdog/imx2_wdt.c > @@ -248,11 +248,6 @@ static const struct regmap_config imx2_wdt_regmap_config = { > .max_register = 0x8, > }; > > -static void imx2_wdt_action(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int __init imx2_wdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -277,7 +272,7 @@ static int __init imx2_wdt_probe(struct platform_device *pdev) > return PTR_ERR(wdev->regmap); > } > > - wdev->clk = devm_clk_get(dev, NULL); > + wdev->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(wdev->clk)) { > dev_err(dev, "can't get Watchdog clock\n"); > return PTR_ERR(wdev->clk); > @@ -297,14 +292,6 @@ static int __init imx2_wdt_probe(struct platform_device *pdev) > dev_name(dev), wdog)) > wdog->info = &imx2_wdt_pretimeout_info; > > - ret = clk_prepare_enable(wdev->clk); > - if (ret) > - return ret; > - > - ret = devm_add_action_or_reset(dev, imx2_wdt_action, wdev->clk); > - if (ret) > - return ret; > - > wdev->clk_is_on = true; > > regmap_read(wdev->regmap, IMX2_WDT_WRSR, &val); > diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c > index 922b60374295..61517abf2dba 100644 > --- a/drivers/watchdog/imx7ulp_wdt.c > +++ b/drivers/watchdog/imx7ulp_wdt.c > @@ -200,11 +200,6 @@ static int imx7ulp_wdt_init(void __iomem *base, unsigned int timeout) > return ret; > } > > -static void imx7ulp_wdt_action(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int imx7ulp_wdt_probe(struct platform_device *pdev) > { > struct imx7ulp_wdt_device *imx7ulp_wdt; > @@ -222,20 +217,12 @@ static int imx7ulp_wdt_probe(struct platform_device *pdev) > if (IS_ERR(imx7ulp_wdt->base)) > return PTR_ERR(imx7ulp_wdt->base); > > - imx7ulp_wdt->clk = devm_clk_get(dev, NULL); > + imx7ulp_wdt->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(imx7ulp_wdt->clk)) { > dev_err(dev, "Failed to get watchdog clock\n"); > return PTR_ERR(imx7ulp_wdt->clk); > } > > - ret = clk_prepare_enable(imx7ulp_wdt->clk); > - if (ret) > - return ret; > - > - ret = devm_add_action_or_reset(dev, imx7ulp_wdt_action, imx7ulp_wdt->clk); > - if (ret) > - return ret; > - > wdog = &imx7ulp_wdt->wdd; > wdog->info = &imx7ulp_wdt_info; > wdog->ops = &imx7ulp_wdt_ops; > diff --git a/drivers/watchdog/loongson1_wdt.c b/drivers/watchdog/loongson1_wdt.c > index bb3d075c0633..c55656cfb403 100644 > --- a/drivers/watchdog/loongson1_wdt.c > +++ b/drivers/watchdog/loongson1_wdt.c > @@ -79,11 +79,6 @@ static const struct watchdog_ops ls1x_wdt_ops = { > .set_timeout = ls1x_wdt_set_timeout, > }; > > -static void ls1x_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int ls1x_wdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -100,20 +95,10 @@ static int ls1x_wdt_probe(struct platform_device *pdev) > if (IS_ERR(drvdata->base)) > return PTR_ERR(drvdata->base); > > - drvdata->clk = devm_clk_get(dev, pdev->name); > + drvdata->clk = devm_clk_get_enabled(dev, pdev->name); > if (IS_ERR(drvdata->clk)) > return PTR_ERR(drvdata->clk); > > - err = clk_prepare_enable(drvdata->clk); > - if (err) { > - dev_err(dev, "clk enable failed\n"); > - return err; > - } > - err = devm_add_action_or_reset(dev, ls1x_clk_disable_unprepare, > - drvdata->clk); > - if (err) > - return err; > - > clk_rate = clk_get_rate(drvdata->clk); > if (!clk_rate) > return -EINVAL; > diff --git a/drivers/watchdog/lpc18xx_wdt.c b/drivers/watchdog/lpc18xx_wdt.c > index 60b6d74f267d..1b9b5f21a0df 100644 > --- a/drivers/watchdog/lpc18xx_wdt.c > +++ b/drivers/watchdog/lpc18xx_wdt.c > @@ -197,16 +197,10 @@ static const struct watchdog_ops lpc18xx_wdt_ops = { > .restart = lpc18xx_wdt_restart, > }; > > -static void lpc18xx_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int lpc18xx_wdt_probe(struct platform_device *pdev) > { > struct lpc18xx_wdt_dev *lpc18xx_wdt; > struct device *dev = &pdev->dev; > - int ret; > > lpc18xx_wdt = devm_kzalloc(dev, sizeof(*lpc18xx_wdt), GFP_KERNEL); > if (!lpc18xx_wdt) > @@ -216,38 +210,18 @@ static int lpc18xx_wdt_probe(struct platform_device *pdev) > if (IS_ERR(lpc18xx_wdt->base)) > return PTR_ERR(lpc18xx_wdt->base); > > - lpc18xx_wdt->reg_clk = devm_clk_get(dev, "reg"); > + lpc18xx_wdt->reg_clk = devm_clk_get_enabled(dev, "reg"); > if (IS_ERR(lpc18xx_wdt->reg_clk)) { > dev_err(dev, "failed to get the reg clock\n"); > return PTR_ERR(lpc18xx_wdt->reg_clk); > } > > - lpc18xx_wdt->wdt_clk = devm_clk_get(dev, "wdtclk"); > + lpc18xx_wdt->wdt_clk = devm_clk_get_enabled(dev, "wdtclk"); > if (IS_ERR(lpc18xx_wdt->wdt_clk)) { > dev_err(dev, "failed to get the wdt clock\n"); > return PTR_ERR(lpc18xx_wdt->wdt_clk); > } > > - ret = clk_prepare_enable(lpc18xx_wdt->reg_clk); > - if (ret) { > - dev_err(dev, "could not prepare or enable sys clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, lpc18xx_clk_disable_unprepare, > - lpc18xx_wdt->reg_clk); > - if (ret) > - return ret; > - > - ret = clk_prepare_enable(lpc18xx_wdt->wdt_clk); > - if (ret) { > - dev_err(dev, "could not prepare or enable wdt clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, lpc18xx_clk_disable_unprepare, > - lpc18xx_wdt->wdt_clk); > - if (ret) > - return ret; > - > /* We use the clock rate to calculate timeouts */ > lpc18xx_wdt->clk_rate = clk_get_rate(lpc18xx_wdt->wdt_clk); > if (lpc18xx_wdt->clk_rate == 0) { > diff --git a/drivers/watchdog/meson_gxbb_wdt.c b/drivers/watchdog/meson_gxbb_wdt.c > index d3c9e2f6e63b..cf65d096f3c0 100644 > --- a/drivers/watchdog/meson_gxbb_wdt.c > +++ b/drivers/watchdog/meson_gxbb_wdt.c > @@ -146,16 +146,10 @@ static const struct of_device_id meson_gxbb_wdt_dt_ids[] = { > }; > MODULE_DEVICE_TABLE(of, meson_gxbb_wdt_dt_ids); > > -static void meson_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int meson_gxbb_wdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > struct meson_gxbb_wdt *data; > - int ret; > > data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); > if (!data) > @@ -165,18 +159,10 @@ static int meson_gxbb_wdt_probe(struct platform_device *pdev) > if (IS_ERR(data->reg_base)) > return PTR_ERR(data->reg_base); > > - data->clk = devm_clk_get(dev, NULL); > + data->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(data->clk)) > return PTR_ERR(data->clk); > > - ret = clk_prepare_enable(data->clk); > - if (ret) > - return ret; > - ret = devm_add_action_or_reset(dev, meson_clk_disable_unprepare, > - data->clk); > - if (ret) > - return ret; > - > platform_set_drvdata(pdev, data); > > data->wdt_dev.parent = dev; > diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c > index 3318544366b8..2a079ca04aa3 100644 > --- a/drivers/watchdog/of_xilinx_wdt.c > +++ b/drivers/watchdog/of_xilinx_wdt.c > @@ -154,11 +154,6 @@ static u32 xwdt_selftest(struct xwdt_device *xdev) > return XWT_TIMER_FAILED; > } > > -static void xwdt_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int xwdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -193,7 +188,7 @@ static int xwdt_probe(struct platform_device *pdev) > > watchdog_set_nowayout(xilinx_wdt_wdd, enable_once); > > - xdev->clk = devm_clk_get(dev, NULL); > + xdev->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(xdev->clk)) { > if (PTR_ERR(xdev->clk) != -ENOENT) > return PTR_ERR(xdev->clk); > @@ -211,15 +206,6 @@ static int xwdt_probe(struct platform_device *pdev) > "The watchdog clock freq cannot be obtained\n"); > } else { > pfreq = clk_get_rate(xdev->clk); > - rc = clk_prepare_enable(xdev->clk); > - if (rc) { > - dev_err(dev, "unable to enable clock\n"); > - return rc; > - } > - rc = devm_add_action_or_reset(dev, xwdt_clk_disable_unprepare, > - xdev->clk); > - if (rc) > - return rc; > } > > /* > diff --git a/drivers/watchdog/pic32-dmt.c b/drivers/watchdog/pic32-dmt.c > index f43062b3c4c8..bc4ccddc75a3 100644 > --- a/drivers/watchdog/pic32-dmt.c > +++ b/drivers/watchdog/pic32-dmt.c > @@ -164,11 +164,6 @@ static struct watchdog_device pic32_dmt_wdd = { > .ops = &pic32_dmt_fops, > }; > > -static void pic32_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int pic32_dmt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -184,20 +179,12 @@ static int pic32_dmt_probe(struct platform_device *pdev) > if (IS_ERR(dmt->regs)) > return PTR_ERR(dmt->regs); > > - dmt->clk = devm_clk_get(dev, NULL); > + dmt->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(dmt->clk)) { > dev_err(dev, "clk not found\n"); > return PTR_ERR(dmt->clk); > } > > - ret = clk_prepare_enable(dmt->clk); > - if (ret) > - return ret; > - ret = devm_add_action_or_reset(dev, pic32_clk_disable_unprepare, > - dmt->clk); > - if (ret) > - return ret; > - > wdd->timeout = pic32_dmt_get_timeout_secs(dmt); > if (!wdd->timeout) { > dev_err(dev, "failed to read watchdog register timeout\n"); > diff --git a/drivers/watchdog/pic32-wdt.c b/drivers/watchdog/pic32-wdt.c > index 41715d68d9e9..6d1a00222991 100644 > --- a/drivers/watchdog/pic32-wdt.c > +++ b/drivers/watchdog/pic32-wdt.c > @@ -162,11 +162,6 @@ static const struct of_device_id pic32_wdt_dt_ids[] = { > }; > MODULE_DEVICE_TABLE(of, pic32_wdt_dt_ids); > > -static void pic32_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int pic32_wdt_drv_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -186,22 +181,12 @@ static int pic32_wdt_drv_probe(struct platform_device *pdev) > if (!wdt->rst_base) > return -ENOMEM; > > - wdt->clk = devm_clk_get(dev, NULL); > + wdt->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(wdt->clk)) { > dev_err(dev, "clk not found\n"); > return PTR_ERR(wdt->clk); > } > > - ret = clk_prepare_enable(wdt->clk); > - if (ret) { > - dev_err(dev, "clk enable failed\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, pic32_clk_disable_unprepare, > - wdt->clk); > - if (ret) > - return ret; > - > if (pic32_wdt_is_win_enabled(wdt)) { > dev_err(dev, "windowed-clear mode is not supported.\n"); > return -ENODEV; > diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c > index e0ea133c1690..87a44a5675a1 100644 > --- a/drivers/watchdog/pnx4008_wdt.c > +++ b/drivers/watchdog/pnx4008_wdt.c > @@ -179,11 +179,6 @@ static struct watchdog_device pnx4008_wdd = { > .max_timeout = MAX_HEARTBEAT, > }; > > -static void pnx4008_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int pnx4008_wdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -195,18 +190,10 @@ static int pnx4008_wdt_probe(struct platform_device *pdev) > if (IS_ERR(wdt_base)) > return PTR_ERR(wdt_base); > > - wdt_clk = devm_clk_get(dev, NULL); > + wdt_clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(wdt_clk)) > return PTR_ERR(wdt_clk); > > - ret = clk_prepare_enable(wdt_clk); > - if (ret) > - return ret; > - ret = devm_add_action_or_reset(dev, pnx4008_clk_disable_unprepare, > - wdt_clk); > - if (ret) > - return ret; > - > pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ? > WDIOF_CARDRESET : 0; > pnx4008_wdd.parent = dev; > diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c > index 0d2209c5eaca..d776474dcdf3 100644 > --- a/drivers/watchdog/qcom-wdt.c > +++ b/drivers/watchdog/qcom-wdt.c > @@ -175,11 +175,6 @@ static const struct watchdog_info qcom_wdt_pt_info = { > .identity = KBUILD_MODNAME, > }; > > -static void qcom_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static const struct qcom_wdt_match_data match_data_apcs_tmr = { > .offset = reg_offset_data_apcs_tmr, > .pretimeout = false, > @@ -226,21 +221,12 @@ static int qcom_wdt_probe(struct platform_device *pdev) > if (IS_ERR(wdt->base)) > return PTR_ERR(wdt->base); > > - clk = devm_clk_get(dev, NULL); > + clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(clk)) { > dev_err(dev, "failed to get input clock\n"); > return PTR_ERR(clk); > } > > - ret = clk_prepare_enable(clk); > - if (ret) { > - dev_err(dev, "failed to setup clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, qcom_clk_disable_unprepare, clk); > - if (ret) > - return ret; > - > /* > * We use the clock rate to calculate the max timeout, so ensure it's > * not zero to avoid a divide-by-zero exception. > diff --git a/drivers/watchdog/rtd119x_wdt.c b/drivers/watchdog/rtd119x_wdt.c > index 834b94ff3f90..95c8d7abce42 100644 > --- a/drivers/watchdog/rtd119x_wdt.c > +++ b/drivers/watchdog/rtd119x_wdt.c > @@ -94,16 +94,10 @@ static const struct of_device_id rtd119x_wdt_dt_ids[] = { > { } > }; > > -static void rtd119x_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int rtd119x_wdt_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > struct rtd119x_watchdog_device *data; > - int ret; > > data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); > if (!data) > @@ -113,18 +107,10 @@ static int rtd119x_wdt_probe(struct platform_device *pdev) > if (IS_ERR(data->base)) > return PTR_ERR(data->base); > > - data->clk = devm_clk_get(dev, NULL); > + data->clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(data->clk)) > return PTR_ERR(data->clk); > > - ret = clk_prepare_enable(data->clk); > - if (ret) > - return ret; > - ret = devm_add_action_or_reset(dev, rtd119x_clk_disable_unprepare, > - data->clk); > - if (ret) > - return ret; > - > data->wdt_dev.info = &rtd119x_wdt_info; > data->wdt_dev.ops = &rtd119x_wdt_ops; > data->wdt_dev.timeout = 120; > diff --git a/drivers/watchdog/st_lpc_wdt.c b/drivers/watchdog/st_lpc_wdt.c > index 14ab6559c748..d79823e1b07e 100644 > --- a/drivers/watchdog/st_lpc_wdt.c > +++ b/drivers/watchdog/st_lpc_wdt.c > @@ -142,11 +142,6 @@ static struct watchdog_device st_wdog_dev = { > .ops = &st_wdog_ops, > }; > > -static void st_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int st_wdog_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -190,7 +185,7 @@ static int st_wdog_probe(struct platform_device *pdev) > return PTR_ERR(regmap); > } > > - clk = devm_clk_get(dev, NULL); > + clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(clk)) { > dev_err(dev, "Unable to request clock\n"); > return PTR_ERR(clk); > @@ -210,15 +205,6 @@ static int st_wdog_probe(struct platform_device *pdev) > st_wdog_dev.max_timeout = 0xFFFFFFFF / st_wdog->clkrate; > st_wdog_dev.parent = dev; > > - ret = clk_prepare_enable(clk); > - if (ret) { > - dev_err(dev, "Unable to enable clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, st_clk_disable_unprepare, clk); > - if (ret) > - return ret; > - > watchdog_set_drvdata(&st_wdog_dev, st_wdog); > watchdog_set_nowayout(&st_wdog_dev, WATCHDOG_NOWAYOUT); > > diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c > index 570a71509d2a..01849720310d 100644 > --- a/drivers/watchdog/stm32_iwdg.c > +++ b/drivers/watchdog/stm32_iwdg.c > @@ -150,50 +150,23 @@ static int stm32_iwdg_set_timeout(struct watchdog_device *wdd, > return 0; > } > > -static void stm32_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int stm32_iwdg_clk_init(struct platform_device *pdev, > struct stm32_iwdg *wdt) > { > struct device *dev = &pdev->dev; > - u32 ret; > > - wdt->clk_lsi = devm_clk_get(dev, "lsi"); > + wdt->clk_lsi = devm_clk_get_enabled(dev, "lsi"); > if (IS_ERR(wdt->clk_lsi)) > return dev_err_probe(dev, PTR_ERR(wdt->clk_lsi), "Unable to get lsi clock\n"); > > /* optional peripheral clock */ > if (wdt->data->has_pclk) { > - wdt->clk_pclk = devm_clk_get(dev, "pclk"); > + wdt->clk_pclk = devm_clk_get_enabled(dev, "pclk"); > if (IS_ERR(wdt->clk_pclk)) > return dev_err_probe(dev, PTR_ERR(wdt->clk_pclk), > "Unable to get pclk clock\n"); > - > - ret = clk_prepare_enable(wdt->clk_pclk); > - if (ret) { > - dev_err(dev, "Unable to prepare pclk clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, > - stm32_clk_disable_unprepare, > - wdt->clk_pclk); > - if (ret) > - return ret; > } > > - ret = clk_prepare_enable(wdt->clk_lsi); > - if (ret) { > - dev_err(dev, "Unable to prepare lsi clock\n"); > - return ret; > - } > - ret = devm_add_action_or_reset(dev, stm32_clk_disable_unprepare, > - wdt->clk_lsi); > - if (ret) > - return ret; > - > wdt->rate = clk_get_rate(wdt->clk_lsi); > > return 0; > diff --git a/drivers/watchdog/visconti_wdt.c b/drivers/watchdog/visconti_wdt.c > index 83ef55e66ca8..1127e42734f4 100644 > --- a/drivers/watchdog/visconti_wdt.c > +++ b/drivers/watchdog/visconti_wdt.c > @@ -112,11 +112,6 @@ static const struct watchdog_ops visconti_wdt_ops = { > .set_timeout = visconti_wdt_set_timeout, > }; > > -static void visconti_clk_disable_unprepare(void *data) > -{ > - clk_disable_unprepare(data); > -} > - > static int visconti_wdt_probe(struct platform_device *pdev) > { > struct watchdog_device *wdev; > @@ -134,20 +129,9 @@ static int visconti_wdt_probe(struct platform_device *pdev) > if (IS_ERR(priv->base)) > return PTR_ERR(priv->base); > > - clk = devm_clk_get(dev, NULL); > + clk = devm_clk_get_enabled(dev, NULL); > if (IS_ERR(clk)) > return dev_err_probe(dev, PTR_ERR(clk), "Could not get clock\n"); > - > - ret = clk_prepare_enable(clk); > - if (ret) { > - dev_err(dev, "Could not enable clock\n"); > - return ret; > - } > - > - ret = devm_add_action_or_reset(dev, visconti_clk_disable_unprepare, clk); > - if (ret) > - return ret; > - > clk_freq = clk_get_rate(clk); > if (!clk_freq) > return -EINVAL; > -- > 2.35.1 >
diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c index bc99e9164930..23d41043863f 100644 --- a/drivers/watchdog/cadence_wdt.c +++ b/drivers/watchdog/cadence_wdt.c @@ -274,11 +274,6 @@ static const struct watchdog_ops cdns_wdt_ops = { .set_timeout = cdns_wdt_settimeout, }; -static void cdns_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - /************************Platform Operations*****************************/ /** * cdns_wdt_probe - Probe call for the device. @@ -333,21 +328,11 @@ static int cdns_wdt_probe(struct platform_device *pdev) watchdog_stop_on_reboot(cdns_wdt_device); watchdog_set_drvdata(cdns_wdt_device, wdt); - wdt->clk = devm_clk_get(dev, NULL); + wdt->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(wdt->clk)) return dev_err_probe(dev, PTR_ERR(wdt->clk), "input clock not found\n"); - ret = clk_prepare_enable(wdt->clk); - if (ret) { - dev_err(dev, "unable to enable clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, cdns_clk_disable_unprepare, - wdt->clk); - if (ret) - return ret; - clock_f = clk_get_rate(wdt->clk); if (clock_f <= CDNS_WDT_CLK_75MHZ) { wdt->prescaler = CDNS_WDT_PRESCALE_512; diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c index 584a56893b81..5f2184bda7b2 100644 --- a/drivers/watchdog/davinci_wdt.c +++ b/drivers/watchdog/davinci_wdt.c @@ -189,14 +189,8 @@ static const struct watchdog_ops davinci_wdt_ops = { .restart = davinci_wdt_restart, }; -static void davinci_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int davinci_wdt_probe(struct platform_device *pdev) { - int ret = 0; struct device *dev = &pdev->dev; struct watchdog_device *wdd; struct davinci_wdt_device *davinci_wdt; @@ -205,21 +199,11 @@ static int davinci_wdt_probe(struct platform_device *pdev) if (!davinci_wdt) return -ENOMEM; - davinci_wdt->clk = devm_clk_get(dev, NULL); + davinci_wdt->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(davinci_wdt->clk)) return dev_err_probe(dev, PTR_ERR(davinci_wdt->clk), "failed to get clock node\n"); - ret = clk_prepare_enable(davinci_wdt->clk); - if (ret) { - dev_err(dev, "failed to prepare clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, davinci_clk_disable_unprepare, - davinci_wdt->clk); - if (ret) - return ret; - platform_set_drvdata(pdev, davinci_wdt); wdd = &davinci_wdt->wdd; diff --git a/drivers/watchdog/imgpdc_wdt.c b/drivers/watchdog/imgpdc_wdt.c index b57ff3787052..a55f801895d4 100644 --- a/drivers/watchdog/imgpdc_wdt.c +++ b/drivers/watchdog/imgpdc_wdt.c @@ -175,16 +175,11 @@ static const struct watchdog_ops pdc_wdt_ops = { .restart = pdc_wdt_restart, }; -static void pdc_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int pdc_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; u64 div; - int ret, val; + int val; unsigned long clk_rate; struct pdc_wdt_dev *pdc_wdt; @@ -196,38 +191,18 @@ static int pdc_wdt_probe(struct platform_device *pdev) if (IS_ERR(pdc_wdt->base)) return PTR_ERR(pdc_wdt->base); - pdc_wdt->sys_clk = devm_clk_get(dev, "sys"); + pdc_wdt->sys_clk = devm_clk_get_enabled(dev, "sys"); if (IS_ERR(pdc_wdt->sys_clk)) { dev_err(dev, "failed to get the sys clock\n"); return PTR_ERR(pdc_wdt->sys_clk); } - pdc_wdt->wdt_clk = devm_clk_get(dev, "wdt"); + pdc_wdt->wdt_clk = devm_clk_get_enabled(dev, "wdt"); if (IS_ERR(pdc_wdt->wdt_clk)) { dev_err(dev, "failed to get the wdt clock\n"); return PTR_ERR(pdc_wdt->wdt_clk); } - ret = clk_prepare_enable(pdc_wdt->sys_clk); - if (ret) { - dev_err(dev, "could not prepare or enable sys clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, pdc_clk_disable_unprepare, - pdc_wdt->sys_clk); - if (ret) - return ret; - - ret = clk_prepare_enable(pdc_wdt->wdt_clk); - if (ret) { - dev_err(dev, "could not prepare or enable wdt clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, pdc_clk_disable_unprepare, - pdc_wdt->wdt_clk); - if (ret) - return ret; - /* We use the clock rate to calculate the max timeout */ clk_rate = clk_get_rate(pdc_wdt->wdt_clk); if (clk_rate == 0) { diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index 51bfb796898b..273d720588bf 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -248,11 +248,6 @@ static const struct regmap_config imx2_wdt_regmap_config = { .max_register = 0x8, }; -static void imx2_wdt_action(void *data) -{ - clk_disable_unprepare(data); -} - static int __init imx2_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -277,7 +272,7 @@ static int __init imx2_wdt_probe(struct platform_device *pdev) return PTR_ERR(wdev->regmap); } - wdev->clk = devm_clk_get(dev, NULL); + wdev->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(wdev->clk)) { dev_err(dev, "can't get Watchdog clock\n"); return PTR_ERR(wdev->clk); @@ -297,14 +292,6 @@ static int __init imx2_wdt_probe(struct platform_device *pdev) dev_name(dev), wdog)) wdog->info = &imx2_wdt_pretimeout_info; - ret = clk_prepare_enable(wdev->clk); - if (ret) - return ret; - - ret = devm_add_action_or_reset(dev, imx2_wdt_action, wdev->clk); - if (ret) - return ret; - wdev->clk_is_on = true; regmap_read(wdev->regmap, IMX2_WDT_WRSR, &val); diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c index 922b60374295..61517abf2dba 100644 --- a/drivers/watchdog/imx7ulp_wdt.c +++ b/drivers/watchdog/imx7ulp_wdt.c @@ -200,11 +200,6 @@ static int imx7ulp_wdt_init(void __iomem *base, unsigned int timeout) return ret; } -static void imx7ulp_wdt_action(void *data) -{ - clk_disable_unprepare(data); -} - static int imx7ulp_wdt_probe(struct platform_device *pdev) { struct imx7ulp_wdt_device *imx7ulp_wdt; @@ -222,20 +217,12 @@ static int imx7ulp_wdt_probe(struct platform_device *pdev) if (IS_ERR(imx7ulp_wdt->base)) return PTR_ERR(imx7ulp_wdt->base); - imx7ulp_wdt->clk = devm_clk_get(dev, NULL); + imx7ulp_wdt->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(imx7ulp_wdt->clk)) { dev_err(dev, "Failed to get watchdog clock\n"); return PTR_ERR(imx7ulp_wdt->clk); } - ret = clk_prepare_enable(imx7ulp_wdt->clk); - if (ret) - return ret; - - ret = devm_add_action_or_reset(dev, imx7ulp_wdt_action, imx7ulp_wdt->clk); - if (ret) - return ret; - wdog = &imx7ulp_wdt->wdd; wdog->info = &imx7ulp_wdt_info; wdog->ops = &imx7ulp_wdt_ops; diff --git a/drivers/watchdog/loongson1_wdt.c b/drivers/watchdog/loongson1_wdt.c index bb3d075c0633..c55656cfb403 100644 --- a/drivers/watchdog/loongson1_wdt.c +++ b/drivers/watchdog/loongson1_wdt.c @@ -79,11 +79,6 @@ static const struct watchdog_ops ls1x_wdt_ops = { .set_timeout = ls1x_wdt_set_timeout, }; -static void ls1x_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int ls1x_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -100,20 +95,10 @@ static int ls1x_wdt_probe(struct platform_device *pdev) if (IS_ERR(drvdata->base)) return PTR_ERR(drvdata->base); - drvdata->clk = devm_clk_get(dev, pdev->name); + drvdata->clk = devm_clk_get_enabled(dev, pdev->name); if (IS_ERR(drvdata->clk)) return PTR_ERR(drvdata->clk); - err = clk_prepare_enable(drvdata->clk); - if (err) { - dev_err(dev, "clk enable failed\n"); - return err; - } - err = devm_add_action_or_reset(dev, ls1x_clk_disable_unprepare, - drvdata->clk); - if (err) - return err; - clk_rate = clk_get_rate(drvdata->clk); if (!clk_rate) return -EINVAL; diff --git a/drivers/watchdog/lpc18xx_wdt.c b/drivers/watchdog/lpc18xx_wdt.c index 60b6d74f267d..1b9b5f21a0df 100644 --- a/drivers/watchdog/lpc18xx_wdt.c +++ b/drivers/watchdog/lpc18xx_wdt.c @@ -197,16 +197,10 @@ static const struct watchdog_ops lpc18xx_wdt_ops = { .restart = lpc18xx_wdt_restart, }; -static void lpc18xx_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int lpc18xx_wdt_probe(struct platform_device *pdev) { struct lpc18xx_wdt_dev *lpc18xx_wdt; struct device *dev = &pdev->dev; - int ret; lpc18xx_wdt = devm_kzalloc(dev, sizeof(*lpc18xx_wdt), GFP_KERNEL); if (!lpc18xx_wdt) @@ -216,38 +210,18 @@ static int lpc18xx_wdt_probe(struct platform_device *pdev) if (IS_ERR(lpc18xx_wdt->base)) return PTR_ERR(lpc18xx_wdt->base); - lpc18xx_wdt->reg_clk = devm_clk_get(dev, "reg"); + lpc18xx_wdt->reg_clk = devm_clk_get_enabled(dev, "reg"); if (IS_ERR(lpc18xx_wdt->reg_clk)) { dev_err(dev, "failed to get the reg clock\n"); return PTR_ERR(lpc18xx_wdt->reg_clk); } - lpc18xx_wdt->wdt_clk = devm_clk_get(dev, "wdtclk"); + lpc18xx_wdt->wdt_clk = devm_clk_get_enabled(dev, "wdtclk"); if (IS_ERR(lpc18xx_wdt->wdt_clk)) { dev_err(dev, "failed to get the wdt clock\n"); return PTR_ERR(lpc18xx_wdt->wdt_clk); } - ret = clk_prepare_enable(lpc18xx_wdt->reg_clk); - if (ret) { - dev_err(dev, "could not prepare or enable sys clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, lpc18xx_clk_disable_unprepare, - lpc18xx_wdt->reg_clk); - if (ret) - return ret; - - ret = clk_prepare_enable(lpc18xx_wdt->wdt_clk); - if (ret) { - dev_err(dev, "could not prepare or enable wdt clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, lpc18xx_clk_disable_unprepare, - lpc18xx_wdt->wdt_clk); - if (ret) - return ret; - /* We use the clock rate to calculate timeouts */ lpc18xx_wdt->clk_rate = clk_get_rate(lpc18xx_wdt->wdt_clk); if (lpc18xx_wdt->clk_rate == 0) { diff --git a/drivers/watchdog/meson_gxbb_wdt.c b/drivers/watchdog/meson_gxbb_wdt.c index d3c9e2f6e63b..cf65d096f3c0 100644 --- a/drivers/watchdog/meson_gxbb_wdt.c +++ b/drivers/watchdog/meson_gxbb_wdt.c @@ -146,16 +146,10 @@ static const struct of_device_id meson_gxbb_wdt_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, meson_gxbb_wdt_dt_ids); -static void meson_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int meson_gxbb_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct meson_gxbb_wdt *data; - int ret; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -165,18 +159,10 @@ static int meson_gxbb_wdt_probe(struct platform_device *pdev) if (IS_ERR(data->reg_base)) return PTR_ERR(data->reg_base); - data->clk = devm_clk_get(dev, NULL); + data->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(data->clk)) return PTR_ERR(data->clk); - ret = clk_prepare_enable(data->clk); - if (ret) - return ret; - ret = devm_add_action_or_reset(dev, meson_clk_disable_unprepare, - data->clk); - if (ret) - return ret; - platform_set_drvdata(pdev, data); data->wdt_dev.parent = dev; diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c index 3318544366b8..2a079ca04aa3 100644 --- a/drivers/watchdog/of_xilinx_wdt.c +++ b/drivers/watchdog/of_xilinx_wdt.c @@ -154,11 +154,6 @@ static u32 xwdt_selftest(struct xwdt_device *xdev) return XWT_TIMER_FAILED; } -static void xwdt_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int xwdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -193,7 +188,7 @@ static int xwdt_probe(struct platform_device *pdev) watchdog_set_nowayout(xilinx_wdt_wdd, enable_once); - xdev->clk = devm_clk_get(dev, NULL); + xdev->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(xdev->clk)) { if (PTR_ERR(xdev->clk) != -ENOENT) return PTR_ERR(xdev->clk); @@ -211,15 +206,6 @@ static int xwdt_probe(struct platform_device *pdev) "The watchdog clock freq cannot be obtained\n"); } else { pfreq = clk_get_rate(xdev->clk); - rc = clk_prepare_enable(xdev->clk); - if (rc) { - dev_err(dev, "unable to enable clock\n"); - return rc; - } - rc = devm_add_action_or_reset(dev, xwdt_clk_disable_unprepare, - xdev->clk); - if (rc) - return rc; } /* diff --git a/drivers/watchdog/pic32-dmt.c b/drivers/watchdog/pic32-dmt.c index f43062b3c4c8..bc4ccddc75a3 100644 --- a/drivers/watchdog/pic32-dmt.c +++ b/drivers/watchdog/pic32-dmt.c @@ -164,11 +164,6 @@ static struct watchdog_device pic32_dmt_wdd = { .ops = &pic32_dmt_fops, }; -static void pic32_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int pic32_dmt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -184,20 +179,12 @@ static int pic32_dmt_probe(struct platform_device *pdev) if (IS_ERR(dmt->regs)) return PTR_ERR(dmt->regs); - dmt->clk = devm_clk_get(dev, NULL); + dmt->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(dmt->clk)) { dev_err(dev, "clk not found\n"); return PTR_ERR(dmt->clk); } - ret = clk_prepare_enable(dmt->clk); - if (ret) - return ret; - ret = devm_add_action_or_reset(dev, pic32_clk_disable_unprepare, - dmt->clk); - if (ret) - return ret; - wdd->timeout = pic32_dmt_get_timeout_secs(dmt); if (!wdd->timeout) { dev_err(dev, "failed to read watchdog register timeout\n"); diff --git a/drivers/watchdog/pic32-wdt.c b/drivers/watchdog/pic32-wdt.c index 41715d68d9e9..6d1a00222991 100644 --- a/drivers/watchdog/pic32-wdt.c +++ b/drivers/watchdog/pic32-wdt.c @@ -162,11 +162,6 @@ static const struct of_device_id pic32_wdt_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, pic32_wdt_dt_ids); -static void pic32_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int pic32_wdt_drv_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -186,22 +181,12 @@ static int pic32_wdt_drv_probe(struct platform_device *pdev) if (!wdt->rst_base) return -ENOMEM; - wdt->clk = devm_clk_get(dev, NULL); + wdt->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(wdt->clk)) { dev_err(dev, "clk not found\n"); return PTR_ERR(wdt->clk); } - ret = clk_prepare_enable(wdt->clk); - if (ret) { - dev_err(dev, "clk enable failed\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, pic32_clk_disable_unprepare, - wdt->clk); - if (ret) - return ret; - if (pic32_wdt_is_win_enabled(wdt)) { dev_err(dev, "windowed-clear mode is not supported.\n"); return -ENODEV; diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index e0ea133c1690..87a44a5675a1 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -179,11 +179,6 @@ static struct watchdog_device pnx4008_wdd = { .max_timeout = MAX_HEARTBEAT, }; -static void pnx4008_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int pnx4008_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -195,18 +190,10 @@ static int pnx4008_wdt_probe(struct platform_device *pdev) if (IS_ERR(wdt_base)) return PTR_ERR(wdt_base); - wdt_clk = devm_clk_get(dev, NULL); + wdt_clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(wdt_clk)) return PTR_ERR(wdt_clk); - ret = clk_prepare_enable(wdt_clk); - if (ret) - return ret; - ret = devm_add_action_or_reset(dev, pnx4008_clk_disable_unprepare, - wdt_clk); - if (ret) - return ret; - pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ? WDIOF_CARDRESET : 0; pnx4008_wdd.parent = dev; diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c index 0d2209c5eaca..d776474dcdf3 100644 --- a/drivers/watchdog/qcom-wdt.c +++ b/drivers/watchdog/qcom-wdt.c @@ -175,11 +175,6 @@ static const struct watchdog_info qcom_wdt_pt_info = { .identity = KBUILD_MODNAME, }; -static void qcom_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static const struct qcom_wdt_match_data match_data_apcs_tmr = { .offset = reg_offset_data_apcs_tmr, .pretimeout = false, @@ -226,21 +221,12 @@ static int qcom_wdt_probe(struct platform_device *pdev) if (IS_ERR(wdt->base)) return PTR_ERR(wdt->base); - clk = devm_clk_get(dev, NULL); + clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(clk)) { dev_err(dev, "failed to get input clock\n"); return PTR_ERR(clk); } - ret = clk_prepare_enable(clk); - if (ret) { - dev_err(dev, "failed to setup clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, qcom_clk_disable_unprepare, clk); - if (ret) - return ret; - /* * We use the clock rate to calculate the max timeout, so ensure it's * not zero to avoid a divide-by-zero exception. diff --git a/drivers/watchdog/rtd119x_wdt.c b/drivers/watchdog/rtd119x_wdt.c index 834b94ff3f90..95c8d7abce42 100644 --- a/drivers/watchdog/rtd119x_wdt.c +++ b/drivers/watchdog/rtd119x_wdt.c @@ -94,16 +94,10 @@ static const struct of_device_id rtd119x_wdt_dt_ids[] = { { } }; -static void rtd119x_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int rtd119x_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct rtd119x_watchdog_device *data; - int ret; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -113,18 +107,10 @@ static int rtd119x_wdt_probe(struct platform_device *pdev) if (IS_ERR(data->base)) return PTR_ERR(data->base); - data->clk = devm_clk_get(dev, NULL); + data->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(data->clk)) return PTR_ERR(data->clk); - ret = clk_prepare_enable(data->clk); - if (ret) - return ret; - ret = devm_add_action_or_reset(dev, rtd119x_clk_disable_unprepare, - data->clk); - if (ret) - return ret; - data->wdt_dev.info = &rtd119x_wdt_info; data->wdt_dev.ops = &rtd119x_wdt_ops; data->wdt_dev.timeout = 120; diff --git a/drivers/watchdog/st_lpc_wdt.c b/drivers/watchdog/st_lpc_wdt.c index 14ab6559c748..d79823e1b07e 100644 --- a/drivers/watchdog/st_lpc_wdt.c +++ b/drivers/watchdog/st_lpc_wdt.c @@ -142,11 +142,6 @@ static struct watchdog_device st_wdog_dev = { .ops = &st_wdog_ops, }; -static void st_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int st_wdog_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -190,7 +185,7 @@ static int st_wdog_probe(struct platform_device *pdev) return PTR_ERR(regmap); } - clk = devm_clk_get(dev, NULL); + clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(clk)) { dev_err(dev, "Unable to request clock\n"); return PTR_ERR(clk); @@ -210,15 +205,6 @@ static int st_wdog_probe(struct platform_device *pdev) st_wdog_dev.max_timeout = 0xFFFFFFFF / st_wdog->clkrate; st_wdog_dev.parent = dev; - ret = clk_prepare_enable(clk); - if (ret) { - dev_err(dev, "Unable to enable clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, st_clk_disable_unprepare, clk); - if (ret) - return ret; - watchdog_set_drvdata(&st_wdog_dev, st_wdog); watchdog_set_nowayout(&st_wdog_dev, WATCHDOG_NOWAYOUT); diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c index 570a71509d2a..01849720310d 100644 --- a/drivers/watchdog/stm32_iwdg.c +++ b/drivers/watchdog/stm32_iwdg.c @@ -150,50 +150,23 @@ static int stm32_iwdg_set_timeout(struct watchdog_device *wdd, return 0; } -static void stm32_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int stm32_iwdg_clk_init(struct platform_device *pdev, struct stm32_iwdg *wdt) { struct device *dev = &pdev->dev; - u32 ret; - wdt->clk_lsi = devm_clk_get(dev, "lsi"); + wdt->clk_lsi = devm_clk_get_enabled(dev, "lsi"); if (IS_ERR(wdt->clk_lsi)) return dev_err_probe(dev, PTR_ERR(wdt->clk_lsi), "Unable to get lsi clock\n"); /* optional peripheral clock */ if (wdt->data->has_pclk) { - wdt->clk_pclk = devm_clk_get(dev, "pclk"); + wdt->clk_pclk = devm_clk_get_enabled(dev, "pclk"); if (IS_ERR(wdt->clk_pclk)) return dev_err_probe(dev, PTR_ERR(wdt->clk_pclk), "Unable to get pclk clock\n"); - - ret = clk_prepare_enable(wdt->clk_pclk); - if (ret) { - dev_err(dev, "Unable to prepare pclk clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, - stm32_clk_disable_unprepare, - wdt->clk_pclk); - if (ret) - return ret; } - ret = clk_prepare_enable(wdt->clk_lsi); - if (ret) { - dev_err(dev, "Unable to prepare lsi clock\n"); - return ret; - } - ret = devm_add_action_or_reset(dev, stm32_clk_disable_unprepare, - wdt->clk_lsi); - if (ret) - return ret; - wdt->rate = clk_get_rate(wdt->clk_lsi); return 0; diff --git a/drivers/watchdog/visconti_wdt.c b/drivers/watchdog/visconti_wdt.c index 83ef55e66ca8..1127e42734f4 100644 --- a/drivers/watchdog/visconti_wdt.c +++ b/drivers/watchdog/visconti_wdt.c @@ -112,11 +112,6 @@ static const struct watchdog_ops visconti_wdt_ops = { .set_timeout = visconti_wdt_set_timeout, }; -static void visconti_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int visconti_wdt_probe(struct platform_device *pdev) { struct watchdog_device *wdev; @@ -134,20 +129,9 @@ static int visconti_wdt_probe(struct platform_device *pdev) if (IS_ERR(priv->base)) return PTR_ERR(priv->base); - clk = devm_clk_get(dev, NULL); + clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(clk)) return dev_err_probe(dev, PTR_ERR(clk), "Could not get clock\n"); - - ret = clk_prepare_enable(clk); - if (ret) { - dev_err(dev, "Could not enable clock\n"); - return ret; - } - - ret = devm_add_action_or_reset(dev, visconti_clk_disable_unprepare, clk); - if (ret) - return ret; - clk_freq = clk_get_rate(clk); if (!clk_freq) return -EINVAL;
Several drivers manually register a devm handler to disable their clk. Convert them to devm_clk_get_enabled(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/watchdog/cadence_wdt.c | 17 +---------------- drivers/watchdog/davinci_wdt.c | 18 +----------------- drivers/watchdog/imgpdc_wdt.c | 31 +++---------------------------- drivers/watchdog/imx2_wdt.c | 15 +-------------- drivers/watchdog/imx7ulp_wdt.c | 15 +-------------- drivers/watchdog/loongson1_wdt.c | 17 +---------------- drivers/watchdog/lpc18xx_wdt.c | 30 ++---------------------------- drivers/watchdog/meson_gxbb_wdt.c | 16 +--------------- drivers/watchdog/of_xilinx_wdt.c | 16 +--------------- drivers/watchdog/pic32-dmt.c | 15 +-------------- drivers/watchdog/pic32-wdt.c | 17 +---------------- drivers/watchdog/pnx4008_wdt.c | 15 +-------------- drivers/watchdog/qcom-wdt.c | 16 +--------------- drivers/watchdog/rtd119x_wdt.c | 16 +--------------- drivers/watchdog/st_lpc_wdt.c | 16 +--------------- drivers/watchdog/stm32_iwdg.c | 31 ++----------------------------- drivers/watchdog/visconti_wdt.c | 18 +----------------- 17 files changed, 21 insertions(+), 298 deletions(-)