Function fimc_dst_set_buf_seq is called by irq handler
so it should not use mutexes. This patch fixes it.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
+#include <linux/spinlock.h>
#include <drm/drmP.h>
#include <drm/exynos_drm.h>
#include <drm/drmP.h>
#include <drm/exynos_drm.h>
struct exynos_drm_ippdrv ippdrv;
struct resource *regs_res;
void __iomem *regs;
struct exynos_drm_ippdrv ippdrv;
struct resource *regs_res;
void __iomem *regs;
struct clk *clocks[FIMC_CLKS_MAX];
u32 clk_frequency;
struct regmap *sysreg;
struct clk *clocks[FIMC_CLKS_MAX];
u32 clk_frequency;
struct regmap *sysreg;
u32 cfg;
u32 mask = 0x00000001 << buf_id;
int ret = 0;
u32 cfg;
u32 mask = 0x00000001 << buf_id;
int ret = 0;
DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
- mutex_lock(&ctx->lock);
+ spin_lock_irqsave(&ctx->lock, flags);
/* mask register set */
cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
/* mask register set */
cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
fimc_mask_irq(ctx, false);
err_unlock:
fimc_mask_irq(ctx, false);
err_unlock:
- mutex_unlock(&ctx->lock);
+ spin_unlock_irqrestore(&ctx->lock, flags);
DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
- mutex_init(&ctx->lock);
+ spin_lock_init(&ctx->lock);
platform_set_drvdata(pdev, ctx);
pm_runtime_set_active(dev);
platform_set_drvdata(pdev, ctx);
pm_runtime_set_active(dev);
struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
exynos_drm_ippdrv_unregister(ippdrv);
struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
exynos_drm_ippdrv_unregister(ippdrv);
- mutex_destroy(&ctx->lock);
fimc_put_clocks(ctx);
pm_runtime_set_suspended(dev);
fimc_put_clocks(ctx);
pm_runtime_set_suspended(dev);