diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_scaler.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_scaler.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_scaler.c b/drivers/gpu/drm/exynos/exynos_drm_scaler.c index f1cbdd1e6e3c..b24ba948b725 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_scaler.c +++ b/drivers/gpu/drm/exynos/exynos_drm_scaler.c @@ -1,29 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2017 Samsung Electronics Co.Ltd * Author: * Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundationr */ -#include <linux/kernel.h> +#include <linux/clk.h> #include <linux/component.h> #include <linux/err.h> #include <linux/interrupt.h> #include <linux/io.h> -#include <linux/platform_device.h> -#include <linux/clk.h> +#include <linux/kernel.h> #include <linux/of_device.h> +#include <linux/platform_device.h> #include <linux/pm_runtime.h> -#include <drm/drmP.h> #include <drm/exynos_drm.h> -#include "regs-scaler.h" -#include "exynos_drm_fb.h" + #include "exynos_drm_drv.h" +#include "exynos_drm_fb.h" #include "exynos_drm_ipp.h" +#include "regs-scaler.h" #define scaler_read(offset) readl(scaler->regs + (offset)) #define scaler_write(cfg, offset) writel(cfg, scaler->regs + (offset)) @@ -97,12 +94,12 @@ static inline int scaler_reset(struct scaler_context *scaler) scaler_write(SCALER_CFG_SOFT_RESET, SCALER_CFG); do { cpu_relax(); - } while (retry > 1 && + } while (--retry > 1 && scaler_read(SCALER_CFG) & SCALER_CFG_SOFT_RESET); do { cpu_relax(); scaler_write(1, SCALER_INT_EN); - } while (retry > 0 && scaler_read(SCALER_INT_EN) != 1); + } while (--retry > 0 && scaler_read(SCALER_INT_EN) != 1); return retry ? 0 : -EIO; } |