media: ccs-pll: Make variables const where appropriate

Commit Message

Laurent Pinchart June 29, 2024, 3:52 p.m. UTC

Many functions operate on data structures that are read only, both in
the implementation and by design. Mark them as const to increase
readability and avoid future mistakes.

Signed-off-by: Laurent Pinchart <[e-mail]>
---
 drivers/media/i2c/ccs-pll.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)


base-commit: 6ba59ff4227927d3a8530fc2973b80e94b54d58f

Patch

diff --git a/drivers/media/i2c/ccs-pll.c b/drivers/media/i2c/ccs-pll.c
index cf8858cb13d4..34ccda666524 100644
--- a/drivers/media/i2c/ccs-pll.c
+++ b/drivers/media/i2c/ccs-pll.c
@@ -75,11 +75,11 @@  static const char *pll_string(unsigned int which)
 
 #define PLL_FL(f) CCS_PLL_FLAG_##f
 
-static void print_pll(struct device *dev, struct ccs_pll *pll)
+static void print_pll(struct device *dev, const struct ccs_pll *pll)
 {
 	const struct {
-		struct ccs_pll_branch_fr *fr;
-		struct ccs_pll_branch_bk *bk;
+		const struct ccs_pll_branch_fr *fr;
+		const struct ccs_pll_branch_bk *bk;
 		unsigned int which;
 	} branches[] = {
 		{ &pll->vt_fr, &pll->vt_bk, PLL_VT },
@@ -150,10 +150,10 @@  static u32 op_pix_ddr(u32 flags)
 
 static int check_fr_bounds(struct device *dev,
 			   const struct ccs_pll_limits *lim,
-			   struct ccs_pll *pll, unsigned int which)
+			   const struct ccs_pll *pll, unsigned int which)
 {
 	const struct ccs_pll_branch_limits_fr *lim_fr;
-	struct ccs_pll_branch_fr *pll_fr;
+	const struct ccs_pll_branch_fr *pll_fr;
 	const char *s = pll_string(which);
 	int rval;
 
@@ -190,10 +190,10 @@  static int check_fr_bounds(struct device *dev,
 
 static int check_bk_bounds(struct device *dev,
 			   const struct ccs_pll_limits *lim,
-			   struct ccs_pll *pll, unsigned int which)
+			   const struct ccs_pll *pll, unsigned int which)
 {
 	const struct ccs_pll_branch_limits_bk *lim_bk;
-	struct ccs_pll_branch_bk *pll_bk;
+	const struct ccs_pll_branch_bk *pll_bk;
 	const char *s = pll_string(which);
 	int rval;
 
@@ -230,7 +230,7 @@  static int check_bk_bounds(struct device *dev,
 	return rval;
 }
 
-static int check_ext_bounds(struct device *dev, struct ccs_pll *pll)
+static int check_ext_bounds(struct device *dev, const struct ccs_pll *pll)
 {
 	if (!(pll->flags & CCS_PLL_FLAG_FIFO_DERATING) &&
 	    pll->pixel_rate_pixel_array > pll->pixel_rate_csi) {