[PATCH v2 19/20] clk: sp7021: switch to FIELD_PREP_WM16 macro

[Nicolas Frattaroli]

The sp7021 clock driver has its own shifted high word mask macro,
similar to the ones many Rockchip drivers have.

Remove it, and replace instances of it with hw_bitfield.h's
FIELD_PREP_WM16 macro, which does the same thing except in a common
macro that also does compile-time error checking.

This was compile-tested with 32-bit ARM with Clang, no runtime tests
were performed as I lack the hardware. However, I verified that fix
commit 5c667d5a5a3e ("clk: sp7021: Adjust width of _m in HWM_FIELD_PREP()")
is not regressed. No warning is produced.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli at collabora.com>
---
 drivers/clk/clk-sp7021.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/clk/clk-sp7021.c b/drivers/clk/clk-sp7021.c
index 7cb7d501d7a6ebffe002f80dfa937365e04d356a..233259a5997b1f5d5f1c7c101b9e1bddf2083e36 100644
--- a/drivers/clk/clk-sp7021.c
+++ b/drivers/clk/clk-sp7021.c
@@ -7,6 +7,7 @@
 #include <linux/clk-provider.h>
 #include <linux/of.h>
 #include <linux/bitfield.h>
+#include <linux/hw_bitfield.h>
 #include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/err.h>
@@ -38,13 +39,6 @@ enum {
 #define MASK_DIVN	GENMASK(7, 0)
 #define MASK_DIVM	GENMASK(14, 8)
 
-/* HIWORD_MASK FIELD_PREP */
-#define HWM_FIELD_PREP(mask, value)		\
-({						\
-	u64 _m = mask;				\
-	(_m << 16) | FIELD_PREP(_m, value);	\
-})
-
 struct sp_pll {
 	struct clk_hw hw;
 	void __iomem *reg;
@@ -313,15 +307,15 @@ static int plltv_set_rate(struct sp_pll *clk)
 	u32 r0, r1, r2;
 
 	r0  = BIT(clk->bp_bit + 16);
-	r0 |= HWM_FIELD_PREP(MASK_SEL_FRA, clk->p[SEL_FRA]);
-	r0 |= HWM_FIELD_PREP(MASK_SDM_MOD, clk->p[SDM_MOD]);
-	r0 |= HWM_FIELD_PREP(MASK_PH_SEL, clk->p[PH_SEL]);
-	r0 |= HWM_FIELD_PREP(MASK_NFRA, clk->p[NFRA]);
+	r0 |= FIELD_PREP_WM16(MASK_SEL_FRA, clk->p[SEL_FRA]);
+	r0 |= FIELD_PREP_WM16(MASK_SDM_MOD, clk->p[SDM_MOD]);
+	r0 |= FIELD_PREP_WM16(MASK_PH_SEL, clk->p[PH_SEL]);
+	r0 |= FIELD_PREP_WM16(MASK_NFRA, clk->p[NFRA]);
 
-	r1  = HWM_FIELD_PREP(MASK_DIVR, clk->p[DIVR]);
+	r1  = FIELD_PREP_WM16(MASK_DIVR, clk->p[DIVR]);
 
-	r2  = HWM_FIELD_PREP(MASK_DIVN, clk->p[DIVN] - 1);
-	r2 |= HWM_FIELD_PREP(MASK_DIVM, clk->p[DIVM] - 1);
+	r2  = FIELD_PREP_WM16(MASK_DIVN, clk->p[DIVN] - 1);
+	r2 |= FIELD_PREP_WM16(MASK_DIVM, clk->p[DIVM] - 1);
 
 	spin_lock_irqsave(&clk->lock, flags);
 	writel(r0, clk->reg);

-- 
2.50.0