[media] s5p-jpeg: generalize clocks handling
Allow jpeg codec variants declare clocks they need.
Before this patch is applied jpeg-core gets jpeg->sclk
"speculatively": if it is not there, we assume no problem.
This patch eliminates this by explicitly declaring
what clocks are needed for each variant.
This is a preparation for adding Exynos 5433 variant support, which
needs 4 clocks of names not compatible with any previous version of
jpeg hw module.
[Rebase and commit message]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Reviewed-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.h b/drivers/media/platform/s5p-jpeg/jpeg-core.h
index 7d9a9ed..d0076fe 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.h
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.h
@@ -20,6 +20,8 @@
#define S5P_JPEG_M2M_NAME "s5p-jpeg"
+#define JPEG_MAX_CLOCKS 4
+
/* JPEG compression quality setting */
#define S5P_JPEG_COMPR_QUAL_BEST 0
#define S5P_JPEG_COMPR_QUAL_WORST 3
@@ -100,8 +102,7 @@
* @m2m_dev: v4l2 mem2mem device data
* @regs: JPEG IP registers mapping
* @irq: JPEG IP irq
- * @clk: JPEG IP clock
- * @sclk: Exynos3250 JPEG IP special clock
+ * @clocks: JPEG IP clock(s)
* @dev: JPEG IP struct device
* @alloc_ctx: videobuf2 memory allocator's context
* @variant: driver variant to be used
@@ -121,8 +122,7 @@
void __iomem *regs;
unsigned int irq;
enum exynos4_jpeg_result irq_ret;
- struct clk *clk;
- struct clk *sclk;
+ struct clk *clocks[JPEG_MAX_CLOCKS];
struct device *dev;
void *alloc_ctx;
struct s5p_jpeg_variant *variant;
@@ -136,6 +136,8 @@
unsigned int htbl_reinit:1;
struct v4l2_m2m_ops *m2m_ops;
irqreturn_t (*jpeg_irq)(int irq, void *priv);
+ const char *clk_names[JPEG_MAX_CLOCKS];
+ int num_clocks;
};
/**