diff options
Diffstat (limited to 'drivers/media/rc')
| -rw-r--r-- | drivers/media/rc/img-ir/img-ir-core.c | 31 | ||||
| -rw-r--r-- | drivers/media/rc/img-ir/img-ir.h | 2 | ||||
| -rw-r--r-- | drivers/media/rc/ir-hix5hd2.c | 8 |
3 files changed, 28 insertions, 13 deletions
diff --git a/drivers/media/rc/img-ir/img-ir-core.c b/drivers/media/rc/img-ir/img-ir-core.c index 77c78de4f5bf..03fe080278df 100644 --- a/drivers/media/rc/img-ir/img-ir-core.c +++ b/drivers/media/rc/img-ir/img-ir-core.c @@ -110,16 +110,32 @@ static int img_ir_probe(struct platform_device *pdev) priv->clk = devm_clk_get(&pdev->dev, "core"); if (IS_ERR(priv->clk)) dev_warn(&pdev->dev, "cannot get core clock resource\n"); + + /* Get sys clock */ + priv->sys_clk = devm_clk_get(&pdev->dev, "sys"); + if (IS_ERR(priv->sys_clk)) + dev_warn(&pdev->dev, "cannot get sys clock resource\n"); /* - * The driver doesn't need to know about the system ("sys") or power - * modulation ("mod") clocks yet + * Enabling the system clock before the register interface is + * accessed. ISR shouldn't get called with Sys Clock disabled, + * hence exiting probe with an error. */ + if (!IS_ERR(priv->sys_clk)) { + error = clk_prepare_enable(priv->sys_clk); + if (error) { + dev_err(&pdev->dev, "cannot enable sys clock\n"); + return error; + } + } /* Set up raw & hw decoder */ error = img_ir_probe_raw(priv); error2 = img_ir_probe_hw(priv); - if (error && error2) - return (error == -ENODEV) ? error2 : error; + if (error && error2) { + if (error == -ENODEV) + error = error2; + goto err_probe; + } /* Get the IRQ */ priv->irq = irq; @@ -139,6 +155,9 @@ static int img_ir_probe(struct platform_device *pdev) err_irq: img_ir_remove_hw(priv); img_ir_remove_raw(priv); +err_probe: + if (!IS_ERR(priv->sys_clk)) + clk_disable_unprepare(priv->sys_clk); return error; } @@ -146,12 +165,14 @@ static int img_ir_remove(struct platform_device *pdev) { struct img_ir_priv *priv = platform_get_drvdata(pdev); - free_irq(priv->irq, img_ir_isr); + free_irq(priv->irq, priv); img_ir_remove_hw(priv); img_ir_remove_raw(priv); if (!IS_ERR(priv->clk)) clk_disable_unprepare(priv->clk); + if (!IS_ERR(priv->sys_clk)) + clk_disable_unprepare(priv->sys_clk); return 0; } diff --git a/drivers/media/rc/img-ir/img-ir.h b/drivers/media/rc/img-ir/img-ir.h index 2ddf56083182..f1387c016d3d 100644 --- a/drivers/media/rc/img-ir/img-ir.h +++ b/drivers/media/rc/img-ir/img-ir.h @@ -138,6 +138,7 @@ struct clk; * @dev: Platform device. * @irq: IRQ number. * @clk: Input clock. + * @sys_clk: System clock. * @reg_base: Iomem base address of IR register block. * @lock: Protects IR registers and variables in this struct. * @raw: Driver data for raw decoder. @@ -147,6 +148,7 @@ struct img_ir_priv { struct device *dev; int irq; struct clk *clk; + struct clk *sys_clk; void __iomem *reg_base; spinlock_t lock; diff --git a/drivers/media/rc/ir-hix5hd2.c b/drivers/media/rc/ir-hix5hd2.c index b0df62961c14..58ec5986274e 100644 --- a/drivers/media/rc/ir-hix5hd2.c +++ b/drivers/media/rc/ir-hix5hd2.c @@ -16,14 +16,6 @@ #include <linux/regmap.h> #include <media/rc-core.h> -/* Allow the driver to compile on all architectures */ -#ifndef writel_relaxed -# define writel_relaxed writel -#endif -#ifndef readl_relaxed -# define readl_relaxed readl -#endif - #define IR_ENABLE 0x00 #define IR_CONFIG 0x04 #define CNT_LEADS 0x08 |