From: Zeng Zhaoxiu <zhaoxiu.zeng@xxxxxxxxx>
Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@xxxxxxxxx>
---
drivers/media/platform/exynos4-is/fimc-is-regs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/exynos4-is/fimc-is-regs.c b/drivers/media/platform/exynos4-is/fimc-is-regs.c
index cfe4406..ec75a24 100644
--- a/drivers/media/platform/exynos4-is/fimc-is-regs.c
+++ b/drivers/media/platform/exynos4-is/fimc-is-regs.c
@@ -11,6 +11,7 @@
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
+#include <linux/log2.h>
#include "fimc-is.h"
#include "fimc-is-command.h"
@@ -107,7 +108,7 @@ int fimc_is_hw_get_params(struct fimc_is *is, unsigned int num_args)
void fimc_is_hw_set_isp_buf_mask(struct fimc_is *is, unsigned int mask)
{
- if (hweight32(mask) == 1) {
+ if (is_power_of_2(mask)) {
dev_err(&is->pdev->dev, "%s(): not enough buffers (mask %#x)\n",
__func__, mask);
return;
--
2.5.0
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