[1/6] clk: meson: mpll: Delete a meaningless spinlock from the MPLL

Commit Message

Chuan Liu via B4 Relay Sept. 20, 2024, 8:16 a.m. UTC

From: Chuan Liu <[e-mail]>

The existing locking mechanism of CCF can effectively avoid concurrent
register access. struct meson_clk_mpll_data has no meaning in defining
a spinlock repeatedly.

Signed-off-by: Chuan Liu <[e-mail]>
---
 drivers/clk/meson/clk-mpll.c | 11 -----------
 drivers/clk/meson/clk-mpll.h |  1 -
 2 files changed, 12 deletions(-)

Patch

diff --git a/drivers/clk/meson/clk-mpll.c b/drivers/clk/meson/clk-mpll.c
index f639d56f0fd3..aa9abd06ae65 100644
--- a/drivers/clk/meson/clk-mpll.c
+++ b/drivers/clk/meson/clk-mpll.c
@@ -112,26 +112,15 @@  static int mpll_set_rate(struct clk_hw *hw,
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct meson_clk_mpll_data *mpll = meson_clk_mpll_data(clk);
 	unsigned int sdm, n2;
-	unsigned long flags = 0;
 
 	params_from_rate(rate, parent_rate, &sdm, &n2, mpll->flags);
 
-	if (mpll->lock)
-		spin_lock_irqsave(mpll->lock, flags);
-	else
-		__acquire(mpll->lock);
-
 	/* Set the fractional part */
 	meson_parm_write(clk->map, &mpll->sdm, sdm);
 
 	/* Set the integer divider part */
 	meson_parm_write(clk->map, &mpll->n2, n2);
 
-	if (mpll->lock)
-		spin_unlock_irqrestore(mpll->lock, flags);
-	else
-		__release(mpll->lock);
-
 	return 0;
 }
 
diff --git a/drivers/clk/meson/clk-mpll.h b/drivers/clk/meson/clk-mpll.h
index a991d568c43a..4ffd3aeef799 100644
--- a/drivers/clk/meson/clk-mpll.h
+++ b/drivers/clk/meson/clk-mpll.h
@@ -20,7 +20,6 @@  struct meson_clk_mpll_data {
 	struct parm misc;
 	const struct reg_sequence *init_regs;
 	unsigned int init_count;
-	spinlock_t *lock;
 	u8 flags;
 };