clk: ingenic: Remove pll_info.no_bypass_bit

We can express that a PLL has no bypass bit by simply setting the
.bypass_bit field to a negative value.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210530164923.18134-5-paul@crapouillou.net
Tested-by: 周琰杰 (Zhou Yanjie)<zhouyanjie@wanyeetech.com> # on CU1830-neo/X1830
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/ingenic/cgu.c

@@ -99,7 +99,7 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
 	od_enc = ctl >> pll_info->od_shift;
 	od_enc &= GENMASK(pll_info->od_bits - 1, 0);
 
-	if (!pll_info->no_bypass_bit) {
+	if (pll_info->bypass_bit >= 0) {
 		ctl = readl(cgu->base + pll_info->bypass_reg);
 
 		bypass = !!(ctl & BIT(pll_info->bypass_bit));
@@ -226,7 +226,7 @@ static int ingenic_pll_enable(struct clk_hw *hw)
 	u32 ctl;
 
 	spin_lock_irqsave(&cgu->lock, flags);
-	if (!pll_info->no_bypass_bit) {
+	if (pll_info->bypass_bit >= 0) {
 		ctl = readl(cgu->base + pll_info->bypass_reg);
 
 		ctl &= ~BIT(pll_info->bypass_bit);

drivers/clk/ingenic/cgu.h

@@ -39,10 +39,10 @@
  *               their encoded values in the PLL control register, or -1 for
  *               unsupported values
  * @bypass_reg: the offset of the bypass control register within the CGU
- * @bypass_bit: the index of the bypass bit in the PLL control register
+ * @bypass_bit: the index of the bypass bit in the PLL control register, or
+ *              -1 if there is no bypass bit
  * @enable_bit: the index of the enable bit in the PLL control register
  * @stable_bit: the index of the stable bit in the PLL control register
- * @no_bypass_bit: if set, the PLL has no bypass functionality
  */
 struct ingenic_cgu_pll_info {
 	unsigned reg;
@@ -52,10 +52,9 @@ struct ingenic_cgu_pll_info {
 	u8 n_shift, n_bits, n_offset;
 	u8 od_shift, od_bits, od_max;
 	unsigned bypass_reg;
-	u8 bypass_bit;
+	s8 bypass_bit;
 	u8 enable_bit;
 	u8 stable_bit;
-	bool no_bypass_bit;
 };
 
 /**

drivers/clk/ingenic/jz4770-cgu.c

@@ -139,8 +139,7 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = {
 			.od_bits = 2,
 			.od_max = 8,
 			.od_encoding = pll_od_encoding,
-			.bypass_reg = CGU_REG_CPPCR1,
-			.no_bypass_bit = true,
+			.bypass_bit = -1,
 			.enable_bit = 7,
 			.stable_bit = 6,
 		},